braecker - manual
TRANSCRIPT
S P I N N I N G T E C H N O L O G Y
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SA132, rue ClemenceauF-68920 WintzenheimFranceTel +33 3 89 27 00 07Fax +33 3 89 27 52 30E-mail [email protected] www.bracker.fr
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S P I N N I N G T E C H N O L O G Y
Q u a l i t y b y B r ä c k e r
Engl
ish
Réf.
BF10
- 03
/ 5.
000
/ 466
/ G
RAI
Summary
Technical spinning information page 3
Requirements for optimum results with… 4Spinning geometry 5Numbering systems for yarns and twists 6-7Traveller weights - comparison chart flange travellers 8Traveller speeds/ performance calculations 9
Hairiness 10-12Influence of the ring condition on the yarn quality 13Yarn breaks 14-16Neps 17
Designation of the ring traveller parts 20Yarn clearance 21Wire sections 22Finishing treatments 23Traveller friction 24-25Yarn clearance and its influence on the traveller lubrication 26Motions of the ring traveller 27Ring traveller/ring contact areas 28Compact spinning 29Processing of blended and synthetic yarns 30-31Core yarns 32-33
Traveller delivery program for flange rings 34-36Traveller weights for T flange, Orbit, SU 37Recommendation for Bräcker travellers 38-39Setting of the traveller cleaner 40-41Orbit ring/ traveller system 42Ring travellers for ORBIT rings 43Traveller wear and tear 44Setting of the traveller cleaner 45SU Ring/ traveller system 46Ring travellers for SU rings 47Setting of the traveller cleaner 48
Rings, range of application 50Ring profiles 51Ring shapes 52Fixing methods 53Bräcker Press-System 54
Rings with large difference inner / outer diameter 55Start-up proceeding for new rings 56Ring life time 57Bräcker ring tolerances 58Designation of the ring parts, example for placing an order 59
C-shape, Orbit and SU travellers page 19
Spinning rings page 49
J - HZ Travellers and rings page 61
Ear- shaped steel travellers (J and HZ) 62Traveller weights comparison chart J and HZ travellers 63Travellers for conical rings 64Ring and traveller combinations with J travellers 65Traveller weights for spinning worstedand semi- worsted yarns on conical rings 66Travellers for vertical rings 67Traveller weights for twisting with steeltravelllers on vertical rings 68Traveller weights for spinning on vertical rings 69
Nyltex/Steeltex pages 79-81
Tools pages 83-91
Yarn carriers pages 93-95
Index page 96
CPH Chromit Travellers 70Traveller weights for draw twisting withCPH Chromit travellers 71CPH Chromit Travellers , manufacturing tolerances 72Designation of the ring parts 73Recommended ring heights for HZ rings 74Lubricating systems for conical rings 75Running-in of self lubricating Bräcker rings 76Lubricants for self-lubricating rings 77Inserting tools for magazined travellers 78
Technical spinninginformation
4
Requirements for optimum results with Bräcker rings and travellers
The spinning geometry of the spinning machines should be adapted to the yarns produced.By modifying these parameters, the following values should be considered.Important is the centring of the spinning rings, anti-ballooning rings and thread guidestowards the spindle.This guarantees (together with perfect ring raceway and correct selected travellers) best yarnquality.
Thread guide• Distance top of the tube / thread guide = 1.5 to 2x tube Ø
(ring rail position at starting position)
Anti-ballooning ring • Anti-ballooning ring Ø = ring Ø + 2mm• Distance ring rail / Anti-ballooning ring (ring rail position in
starting position) = 2/3 of the distance ring rail / threadguide
Spinning ring• Spinning ring Ø: max 1/5 of the tube length
(exception Core Yarns) see chart below• Horizontal, firm fixation of the rings in the ring rail.• Correct setting of the traveller cleaner (see pages 40, 41,
45, 48)
Ratio ring-Ø / tube-Ø / tube length
Ring-Ø(mm) D Tube length (mm) L
36 170 180 190 200
Medium tube-Ø (mm)
16 17 18 19 20
38 180 190 200 21017 18 19 20 21
40 190 200 210 22018 19 20 21 22
42 200 210 220 23019 20 21 22 23
45 210 220 230 24020 21 22 23 24
48 220 230 240 25021 22 23 24 25
51 230 240 250 26022 23 24 25 26
54 240 250 260 27023 24
Unfavourable rangeIdeal range
25 26 27
L
D
5
Spinning geometryRelation yarn count / ring diameter / flange type / traveller speed
see also page 4
The spinning geometry is determined (exception sewing thread) by the yarn count:• Coarse counts � Large ring diameter � Flange 2 � Long tubes• Fine counts � Small ring diameter � Flange 1 � Short tubes
The maximum traveller speed is determined (with an optimum spinning geometry) by theyarn count and the twist rate.
Yarn count Ne
Recommended ring diameter
51/48 mm
45/42 mm
Recommended flange type
Flange 1
Flange 2
Orbit SFB 2,8
Ratio ring diameter / tube lengthThe ideal ratio ring diameter to tube winding length is 1:5 (see page 4)
36 mm
40/38 mm
6 7 10 12 16 20 24 30 36 40 50 60 80 105 132
43
38
33
28
23
18
v tr
avel
ler
m/s
Warp twist
Knit twist
6
Numbering systems for yarns and twistsConversion formulas
tex Nea NeL NeW NeKNm
tex 9 tex - 10 tex 590tex
1654tex
1938tex
886tex
1000tex
Decitex 0,9 tex 0,1 dtex - 5900dtex
16540dtex
19380dtex
8860dtex
10000dtex
Den den - 0,111 den 1,111 den 5315den
14882den
17440den
7972den
9000den
Metric no Nm 9000Nm
1000Nm 0,590 Nm 1,654 Nm 1,938 Nm 0,886 Nm-
Engl.cotton no
NeB5315NeB
590NeB
- 2,80 NeB 3,28 NeB 1,5 NeB1,693 NeB
Engl.linen no
NeL14882
NeL
1654NeL
0,357 NeL - 1,172 NeL 0,536 NeL0,605 NeL
Engl.woolen no
New17440New
1938New
0,305 New 0,853 New - 0,457 New0,516 New
Engl comb. no
NeK7972NeK
886NeK
0,667 NeK 1,867 NeK 2,188 NeK -1,129 NeK
Mass count = WeightLength
Length count = LengthWeight
tex =g
km
den =g
9000 m
Nm =mg
NeB = 840 ydspound
NeL = 300 ydspound
NeW = 256 yds pound
NeK = 560 ydspound
Twist Twist multiplier
with Ne T/” = �e • Ne with Ne �e = T”
with Nm T/m = �m • Nm
with tex T/m = �tex with Nm �m = T/m
with tex �tex = T/m • tex
Weft twist � Warp x 0,9Knit twist � Warp x 0,8
10000Nm
5900NeB
16540NeL
19380New
8860NeK
(woolen)
(worsted)
den dtexAbbre-viation
dtex
Tex
tex
Ne
Nm
Desired
Given
7
Numbering systems for yarns and twistsYarn count comparison chart (rounded figures)
tex Nm NeB NeK den
100,0 10,0 6,0 8,9
84,0 12,0 7,0 10,6 23,3 19,8 750
72,0 14,0 8,3 12,4 27,1 23,2 643
64,0 16,0 9,5 14,2 31,0 26,5 563
60,0 17,0 10,0 15,0 33,0 28,0 529
56,0 18,0 10,6 16,0 35,0 29,8 500
50,0 20,0 12,0 17,7 39,0 33,0 450
46,0 22,0 13,0 19,5 43,0 36,4 409
42,0 24,0 14,0 21,1 47,0 40,0 375
36,0 28,0 16,5 24,8 54,0 46,0 321
34,0 30,0 18,0 26,6 58,0 50,0 300
32,0 32,0 19,0 28,4 62,0 53,0 281
30,0 34,0 20,0 30,1 66,0 56,0 265
25,0 40,0 24,0 35,4 78,0 66,0 225
23,0 44,0 26,0 39,0 85,0 73,0 205
21,0 48,0 28,0 42,5 93,0 79,0 188
20,0 50,0 30,0 44,3 97,0 83,0 180
17,0 60,0 36,0 53,2 116,0 99,0 150
14,0 70,0 40,0 62,0 136,0 116,0 129
12,5 80,0 48,0 71,0 155,0 132,0 113
12,0 85,0 50,0 75,3 - 140,5 108
10,0 100,0 60,0 88,6 - 165,4 90
8,3 120,0 70,0 104,5 - 195,1 75
7,4 135,0 80,0 119,6 - 223,2 67
6,6 150,0 90,0 - - - 60
5,8 170,0 100,0 - - - 52
5,5 180,0 105,0 - - - 50
5,0 200,0 120,0 - - - 45
4,0 250,0 150,0 - - - 36
3,3 300,0 180,0 - - - 30
19,4 16,5 900
NeLNeW
8
Traveller weights – comparison chart flange travellersTraveller weights in mg resp. per 1000 travellers in g
ISO standard 96-1: traveller weights in accordance with series R20 =100 +12,5% +12,5%…Exceptions (in brackets): Series R40 = 100 + 6,25% + 6,25% + 6,25%…
The ISO number guarantees an even percentile grading
Bräcker travellers are produced in accordance with ISO 96-1
Traveller No
BräckerISO-No KANAI* R + F CARTER Traveller
NoBräckerISO-No KANAI* R + F CARTER
28/0 6,3 6,7 5,0 4 90 89 85 84,2
26/0 7,1 8,1 6,0 4,8 5 (95) 95 95 90,7
24/0 8,0 9,5 7,1 8,1 6 100 109 106 103,7
22/0 9,0 10,9 8,0 11,3 7 112 122 112 116,6
20/0 10,0 12,3 9,0 14,6 8 125 136 125 129,6
19/0 11,2 13,0 10,0 16,2 9 140 154 140 149,0
18/0 12,5 13,7 11,2 17,8 10 160 175 160 168,5
17/0 (13,2) 14,5 12,8 19,4 11 180 204 180 194,4
16/0 14,0 15,4 13,2 21,1 12 200 224 200 213,8
15/0 (15,0) 16,6 14,5 22,7 13 224 244 224 233,3
14/0 16,0 18,3 16,0 24,3 14 250 264 236 252,7
13/0 (17,0) 20,0 17,0 25,9 15 (265) 283 250 272,2
12/0 18,0 21,6 18,0 27,5 16 280 280 265 285,1
11/0 20,0 23,4 19,0 29,2 17 (300) 311 280 298,1
10/0 22,4 24,8 20,0 30,8 18 315 324 300 311,0
9/0 (23,6) 26,8 22,4 32,4 19 (335) 335 315 324,0
8/0 25,0 28,5 23,6 34,0 20 355 355 325 337,0
7/0 28,0 30,2 26,5 35,6 21 364 335 350,0
6/0 31,5 32,2 30,0 38,9 22 (375) 378 355 362,9
5/0 35,5 35,1 31,5 42,1 23 391 375 375,8
4/0 40,0 38,3 35,5 45,4 24 400 404 385 388,8
3/0 45,0 42,2 40,0 48,6 25 417 400 401,8
2/0 50,0 48,3 45,0 51,8 26 (425) 431 415 414,7
1/0 56,0 54,6 50,0 58,3 27 444 425 427,7
1 63,0 62,2 60,0 64,8 28 450 457 450 440,6
2 71,0 74,0 71,0 71,3 29 472 460 453,6
3 80,0 81,0 80,0 77,8 30 (475) 485 475 466,6
* Only coated travellers / main types!
9
Traveller speeds / performance calculationsin m/s (rounded figures), ring diameter 36-70 mm
Formula: ring diameter x πx n = m/s1000 x 60
Feet/min: ~ m/s x 200
Ring-Ø
mm Inch
70
9 00
09
500
10 0
00
10 5
0011
000
11 5
00
24 0
0024
500
25 0
00
22 5
0023
000
23 5
00
21 0
0021
500
22 0
00
19 5
0020
000
20 5
00
18 0
0018
500
19 0
00
16 5
0017
000
17 5
00
15 0
0015
500
16 0
00
13 5
0014
000
14 5
00
12 0
0012
500
13 0
00
Spindle speed n/min
9 00
09
500
10 0
00
10 5
0011
000
11 5
00
12 0
0012
500
13 0
00
13 5
0014
000
14 5
00
15 0
0015
500
16 0
00
16 5
0017
000
17 5
00
18 0
0018
500
19 0
00
19 5
0020
000
20 5
00
21 0
0021
500
22 0
00
22 5
0023
000
23 5
00
24 0
0024
500
25 0
00
Spindle speed n/min
23/4 33 34 36
Performance calculations
Delivery:
L = n = m/minT/m
Production:
Ppr = L x tex x 60 x l = g/h1000
or
Ppr = n x tex x 60 x l= g/hT/m x 1000
L = Delivery in m/min.
Ppr = Production in practice
n = Spindle speed in min-1
T/m = Twists per m
g/h = Gram / hour (spindle)
l = Efficiency
38 40 42
67 25/8 31 33 35 36 38 40 42 43 45
63 21/2 29 31 33 34 36 38 39 41 42
23/8 28 29 31 33 34 36 37 39 40 42 44 45
57
60
21/4 25 27 28 30 31 32 34 35 37 38 40 41
21/854 25 26 28 34 35 3629 31 32 38 39 41 42 43 45
51 2 24 25 26 28 29 30 32 33 34 36 37 38 40 41 42
48 17/8 22 24 25 26 27 29 30 31 32 34 35 36 37 39 40 41 42 44
45 13/4 21 22 23 24 26 27 28 29 30 31 33 34 35 36 37 39 40 41 42 43 44
42 15/8 20 21 22 23 24 25 26 27 28 29 30 32 33 34 35 36 37 38 39 40 41 43 44 45
40 19/16 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 41 42 43
38 11/2 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 40 41 42 43 45 46 47 48 49 50
36 127/64 31 32 3328 29 3025 26 2723 24 25 34 35 36 37 38 39 40 41 41 42 43 44 45 46 47
10
HairinessMeasuring methods
Uster Tester 3 und 4• Method :
A beam of light is directed on the yarn. The protruding fibres reflect the light and itsintensity shows the hairiness value H (dimensionless value).
• Hairiness H : Total length of the protruding fibres within the measuring panel of 1 cm (e.g. H 4 corresponds to 4 cm fibres on 1 cm yarn). The value H is dimensionless.Measuring in combination with mass, IPI, neps.
• Evaluation of: medium hairiness / CV-hairiness, spectrogram.
• Uster Standards for hairiness available
• Further information:www.uster.com
Zweigle hairiness measuring device G 566• Method:
The fibres protruding from the body of the yarn are counted and classified to the followinglength rates: 1, 2, 3, 4, 6, 8, 10, 12, 15, 18, 21, 25 mm
• Measuring length 1m
• The S3 value is the sum of all hairs longer than 2mm.
• The index is a reference and can be taken as a standard value only when other rates havebeen selected.
• Further information:www.zweigle.com
Please note:• Hairiness is being measured on cops and bobbins and can not be directly compared with
each other (bobbins show a higher hairiness).
11
HairinessAppearance
Yarn hairinessWe speak of yarn hairinesswhen the body of the yarnhas an exceeding number oflong hair protruding out of it.
Cop hairinessWe speak of cop hairinesswhen the outer side of the cophas an exceeding number oflong hair protruding out of it.
Hairiness as a disturbancefactorHairiness is considered as adisturbance in the followingoperations :- Sizing machine (lateral
hooking)- Warping, beam warping
(dust)- Rewinding- Weaving (weft bars)
Measuring methodsThe following measuringdevices are on the market :- Uster Tester 3/4- Zweigle G566 Hairiness Tester
Hairiness measuring methodssee page 10
Further information on ourInfo sheet 8051 "Hairiness ofyarn and cop in ring spinning".
Symbols
Kind of hairiness
Yarn CopCause Remedy
Ring condition• Rough gliding surfaces
reduce the braking effect ofthe ring traveller or disturbsmooth running.
• Replace rings (heavier ringtravellers only rarely ortemporarily bringimprovement, yarn breaksincrease)
Traveller weight too light:• Poor twist contraction of
the fibres on the spinningtriangle
• Heavy friction of theballoon on the anti-ballooning ring resp. impacton the balloon separator
• Poor twist propagation tothe spinning triangle.
Too heavy traveller or too muchwear on the traveller:• Friction of the yarn leading
to roughening and hairiness• Traveller wear in yarn
passage area, causingroughening
Ringzustand
• Increase traveller weight orchoose another travellertype
Ringzustand• Reduce traveller weight or
choose another travellertype
• Reduce traveller runningtime
Yarn hairiness Cop hairiness
12
HairinessAppearance
Kind of hairinessCause Remedy
Uneven yarn tension• Poor ring centring• Poorly centred thread
guides• Thread guides with rough
surfaces• Open anti-ballooning ring• Crooked tubes
Ringzustand• Re-centre rings, spindles
resp. thread guides • Replace damaged parts• Closed anti-balloon rings• New tubes
Yarn passage• Yarn is roughened in narrow
yarn clearance• Scratched up yarn passages
catch the yarn and roughen it
Ringzustand• Use a traveller with a larger
yarn clearance• Reduce traveller running
time
Wire profile• The wire profile can
influence the yarn tension• If necessary, adjust the
traveller weight
Ringzustand• Adjust traveller weight
Cop diameter• Fibres protruding from the
cop are caught by thetraveller and cut. Thisfunction does not work ifdistance between travellerand cop is too large.
Ringzustand• Set the cop diameter to the
largest possible size• Use "beard breakers"
Electrostatic• The fibres get
electrostatically loaded(direction of charge +/-without significance)
Ringzustand• Increase air humidity• Assure conductive
discharge with isolatedring rails
Crippled cops• Effect of the "beard
breaker" fails
Ringzustand• No remedy possible,
however, improve generalrunning behaviour
Yarn Cop
udr
dr
f
13
Influence of the ring condition on the yarn quality
The ring / traveller system has to fulfil the following functions :
• To transmit the twist• To provide and regulate the spinning tension• To wind up the yarn
The spinning tension is a central factor for the yarn quality regarding yarn hairiness.
The most important influencing parameters for a consistent spinning tension are:
• Centring of the ring to the spindle• Centring of the thread guides and anti-ballooning rings• Surface condition of the ring raceway
Influence of different surface conditions on the yarn hairiness
Ring condition Roughness values
Rt 1,0 - 1,5RzD 1,0 - 1,5Ra 0,15 - 0,2
Rt 1,5 - 2,0RzD 1,5 - 2,0Ra 0,20 - 0,25
Rt 2,0 - 4,0RzD 2,0 - 3,0Ra 0,25 - 0,40
Rt > 4,0RzD > 3,0Ra > 0,40
Achieved yarn quality
Ne 60 - 132 Ne 24 -50 Ne 6 - 20
Rt 0 - 1,0RzD 0 - 1,0Ra 0 - 0,15
Good Acceptable Critical Deficient
14
Yarn breaks
GeneralBy reducing yarn breaks, thespinning costs become lower andthe productivity increases.By selecting the right ring andtraveller, these performances canbe substantially influenced.
Yarn strength in the spinning process 85-95%
Yarn strength
How does a yarn break?When the current spinning tensionin the spinning process is higherthan the current yarn strength.
Practically, this means that a thinplace in the yarn and a peak intension occur simultaneously.
Influence of the speed onyarn breaksAt higher speeds more yarn isbeing produced. As the yarnbreaks are mostly counted pertime unit, the latter has to beconsidered.
At higher speeds (with identicalspinning geometry) the spinningtension is bound to be higher. Theyarn strength however does notchange, therefore the probabilityof yarn breaks does increase.
Therefore on state-of-the-art ringspinning machines the spindlerotation is adjusted accordingly(reduction on the base and top ofthe cop).
Spinning tension: 10-15% of the yarn strength
Thin place Tension peaks Yarn break
Yarn breaks
Cop
build
-up
Distribution of yarn breaks while buildingup of the cop
10
15
85
95100
%
15
Causes of yarn breaks
Breaks during spinning process
Yarn breaks can have different causes. A perfect ring condition and the selection of the righttravellers are of utmost importance.
If yarn breaks do suddenly increase substantially, other factors, the whole spinning processstages as well as the climatic conditions should be considered in addition.
In general, we distinguish between 2 kinds of yarn breaks:
Cause of yarn breaks Remedy (corrections / solutions)
Unsuitable traveller type Try another traveller shape, wire profile
Adjust traveller weightStrive for a well-balanced balloon
Re-centre rings, anti-ballooning rings and thread guides
Replace rings
Test wear and tear, shorten the replacing cycles
Adjust the spindle speed to the yarn strength (knit yarns show a reduced strength).
Check spinning preparation, drafting system
Analyse modification of the fibre quality resp. softeningagents of chemical fibres
Optimise climate, adjust blower and exhaust installation
Spinning tension too high resp. too low
Uneven spinning tension, yarn tension peaks
Poor condition of the rings
Running time of the travellers
Insufficient yarn strength related to the selectedspeed
Yarn evenness
Raw material
Climatic conditions not optimal, fly
Breakage during doffing
Cause of yarn breaks Remedy (corrections / solutions)
Yarn unthreading from travellers Change traveller type (shape, profile), pay attention to toe gap
Adjust the lowering speed of the ring rail, check start-upprogram (compare with other machines).
Run up faster, increase traveller weight
Check condition of the rings, change traveller type
Delay start-up of drafting system
Setting of the machines
Balloon stability too slowly built-up
Traveller jammed
High curling tendency of the yarn
16
Yarn breaksExample of annual loss in production due to yarn breaks
Annual loss in production (in tons)
Basic data
Average duration of breakage: 30 min.Hours of operation in 1 year: 8'000
Depending on the breakage rate,the annual loss in production canbe calculated, based on thefollowing example:
Ne Nm Production/spindle/hourin grams
24 40 25
30 50 20
40 70 17
Number of yarn breaks
Ne 24
20 30 40
Ne 30
20 30 40
Ne 40
20 30 40
Ne 30 Ne 40
20'000 Spindles 26,4 40 52,8 21,6 32 43,2 18,4 27,2 36
30'000 Spindles 39,6 60 79,2 32,4 48 64,8 27,6 40,8 54
50'000 Spindles 66 100 132 54 80 108 46 68 90
Ne 24
Ne 30
Ne 40
20 30 40
Breakage rate per 1'000 spindles / hour
Annu
al lo
ss in
pro
duct
ion
by
1'00
0 sp
indl
es in
tons
3,0
2,5
2,0
1,5
1,0
0,5
Ne 24
17
Neps
When neps are mentioned in connection with rings and travellers,it means production neps. They do occur merely (and they aremeasurable) on yarns Ne 40 and finer.
Formation of nepsProduction neps do mainly occur in the upper half of the cop andon the top of the cone. It is the matter of pushed-back, retainedfibres and they do arise on tight gliding points and edges as wellas at too high spinning tensions.
Production neps
Cause Remedy
Yarn clearance too tight Select a traveller with a higherbow
Yarn passage intersects with thewear and tear spot
Reduce life time, select alighter traveller
Unsuited wire profile Change from f to udr, resp.from udr to dr
Spinning tension too high Select a lighter traveller
Notched thread guide ReplaceYarn clearance
Yarn passage
Wear and tear area
When yarn passage andwear and tear areaseparated:No risk for neps.
When yarn passage intersectswith wear and tear area:Formation of neps possible.
C-shape, Orbit and SU travellers
20
Designation of the ring traveller partsC-shaped travellers
1 Inner traveller width
2 Height of bow
3 Yarn passage
4 Wire section
5 Traveller - ring contact surface
6 Angle of toe
7 Toe
8 Opening
9 Upper part of traveller bow
7
4
2
1
5
3
8
9
6
7
21
Yarn clearance
The yarn clearance must be adapted to the yarn count, yarn twist (volume) as well as to thefibres processed.
- low-bowed traveller- reduced yarn clearance- low centre of gravityfor fine cotton yarnsfor compact yarns
• Optimum fibre lubrication
- low to medium bowed traveller- small to medium yarn clearancefor fine to medium fine cotton yarns
• Normal fibre lubrication
- high-bowed traveller- large yarn clearancefor medium to coarse cotton yarns, alsosuitable for blends and synthetics (see page 30)
• Reduced fibre lubrication
The yarn clearance does also influence the fibre lubrication (see page 24) :• Reduced yarn clearance � good lubrication• Large yarn clearance � reduced lubrication
22
Wire sections
The wire section does influence the yarn quality, the running behaviour, the performanceand the life time of the travellers. The right choice of the wire section is an importantfactor for optimum results.
Only for cotton: improves thetraveller lubrication.
Synthetics and blends: preventsfibre damage.Fine cotton yarns: reducesproduction (push-back) neps.
For cotton and blends: Throughan enlarged contact surface onthe ring raceway, highestperformances are possible.
For Core yarns with PES core,acrylics and delicate fibres.f-profile at the toe increases thering contact.r-profile for fibre protection in theyarn passage.
Special profile for SU travellers.Application for Viscose andPolyester.
Main application for J and HZtravellers.
SFB travellers: udr, dr, f, r profile.
f
dr
udr
fr
drh
r
23
Finishing treatments
For C-shaped travellers
Travellers with an additional finish show the following advantages:• Higher traveller speeds• Longer traveller life • Improved running behaviour and as a result a more consistent yarn quality• Rust / oxidation protection (specially Starlet and Record2)• High performance travellers are only available with a finishing treatment
SaphirDiffusion treatmentBräcker Saphir has been especially developed for highperformances. The enrichment components are presentthroughout the entire traveller section and do generatetheir effect even when the surface is affected.Saphir can be used for the ring running-in, normaloperation and covers the entire fibre and yarn countrange.
StarletElectrolytic surface treatment (special nickelplating)A nickel coating is applied with a special process.Low friction values in the yarn passage prevent fibredamages.Optimum resistance to corrosion.
MagicNickel/Teflon coatingIn case of poor lubrication through dry cotton orspecial softening agents on synthetic fibres, thetraveller life can be increased considerably.
Record2Coating made of nickel alloySpecial finish for the processing of synthetic fibres.This finish is applied on SU travellers and travellerswith fr profile.
24
Traveller friction
The traveller has, among other things, thefunction to regulate the spinning tension.This spinning tension must be high enoughto keep the thread balloon stable and, onthe other hand, not too high in order toavoid yarn breaks due to tension.The ring / traveller system in the short staplespinning operates "dry". At high speedsnormal friction systems only work withadditional lubricants.The ring / traveller system does only functionthanks to this so-called fibre lubrication. Asa result, the fibres protruding from the yarnbody between ring and traveller are crushedand form a steady regenerating lubricationfilm.
Depending on the fibre (dry or strong wax-containing cotton or softening agents onsynthetics) the resulting coefficient offriction differs.The coefficient of friction µ of the fibrelubrication can vary in extreme cases from0.08 to 0.12. This is the reason, why insome cases for identical spinningconditions different traveller weights mustbe applied.
Lubricating film
Fibre lubrication
25
Traveller friction
R = � • N
100
150
200
250
300
350
mN
0.08 0.09 0.1 0.11 0.12
Coefficient of friction
Traveller friction
Formula
R = Traveller friction in mN
� = Coefficient of friction
N = Normal force � Fz mL x v2
Fz = Centrifugal force
mL = Mass of the traveller in mg
v = Traveller speed in m/s
r = Radius of the ring (inside)
r
4035.531.528
Traveller weight in mg
Example: A traveller with 40 mg � weight develops at a coefficient of friction of 0.08 about the same friction as a traveller with 28 mg weight and a coefficient
of friction of 0.12
ParameterTraveller weight
Ring diameter
Traveller speed
Depending onYarn count, spinning geometry
Spinning geometry, machine
Spindle speed, ring diameter
Coefficient of friction Fibre, yarn hairiness, use of existing resources.
The spinning tension is the result of the following values:
�
�
�
�
�
�
�
26
Yarn clearance and its influence on the traveller lubrication
The required yarn clearance in the traveller must be selected according to the yarn countand to the fibres processed. It is determined by the traveller shape and the inclination of thetraveller (see also page 27).
Effects of the yarn clearance on the yarn quality and the running behaviour of the traveller:
The inclination of the traveller is primary influenced by the spinning geometry and thespinning tension. The stronger the inclination of the traveller, the more the yarn clearance isreduced and the better the traveller lubrication.
The influences of traveller shape and inclination are shown in the following pictures:
Low-bowed traveller
Position
High-bowed traveller
vertical (theoretical position) medium inclination strong inclination
Yarn count
Fibre
Influence on lubrication film
Influence on yarn quality
Yarn clearance
Fine
Cotton
Good traveller lubrication
Danger of "push-back" neps andmelting points (on synthetics).
Small, low
Coarse
Synthetics, blends
Reduced traveller lubrication
Excellent yarn quality guaranteed
Large, high
27
Motions of the ring traveller
The traveller has, among otherthings, the important task to levelout the different balloon forces.The following parameters aredecisive:• Ring rail stroke over build-up of
cop (influence of tube length)• Ring rail stroke during one
traverse (small-/large copdiameter) determines thetraveller pulling angle �
• Variations of speeds over copsbuild-up
• Disturbing elements andinfluences (fly, turbulence, etc. )
• Coefficient of friction ring /traveller (fibre lubrication)
The traveller changes its positionduring its work on the spinningring in addition to the circularmovement in 3 differentdirections:• Tilting motion K• Pitching motion N• Radial motion RThese motions are caused by theballoon forces variations. They areshown in the pictures.
Spinning on empty tube: � large
Top of taper
Tight balloon
Spinning on full cop: � small
Bottom of taper
Soft balloon
�
�
R
N
K
KN
R
ConclusionThe traveller is the levelling element in the spinning process.The right adjustment resp. choice of traveller under consideration of all mentionedparameters are decisive for the performance of the yarn quality during the spinning process.
28
Ring traveller/ring contact areas
The ring traveller is subjected to tension forces from the thread balloon (see page 27).This makes defining the contact area between ring and traveller very complex.By combining the traveller's arc radius with its wire profile, the desired large travellercontact area is achieved already during the starting phase of a newly replaced traveller.
Traveller position and balloon shape on the top of the taper during spinning/winding
Traveller position and balloon shape on the base of the taper during spinning/winding
Traveller positions during spinning/winding on the base of the taper
Calculated in practice (after running for 1-2 hours)
Yarn passage
Contact area
29
Compact spinning
Compact spinning systems generate yarns with the mostreduced hairiness. The fibre lubrication for the ring /traveller system is reduced and results in a poorlubrication.
By using best suited rings and travellers the compactyarns can be processed under optimum conditions.
Ring shape
• Flange rings for normal to high speeds• Orbit rings for highest performances
Restricted yarn count range(see application recommendation page 42)
Ring finish
• Titan for the entire range of application
Travellers
• Low yarn clearance, ultra half round (udr) and halfround (dr) profile
Application recommendation
Guiding values, the effective traveller types and numbers should be evaluated through trials
Conventional ring yarn
Compact yarn
Flange 1 with C 1 EL udr
Yarn No Ne
Riet
erK4
0/K4
4Su
esse
nEl
iTe
Orbit SFB 2.8
SFB 2.8FI 1
PM udr/dr
4563 40 35,5 28 25 22,4 18 16 14 12,5
45 40 35,5 28 25 22,4 18 16 14 12,5C 1 EL udr
140 125 100 90 80 56 45 40C 1 UL udr
SFB 2.8FI 1 40 31,5 28 25 22,4 20 16 14 12,5 11,2
C 1 EL udr
125 112 90 80 71 50 40 31,5C 1 UL udr
10 12 14 16 20 24 30 36 40 50 60 70 80 90 100 105
RL dr
30
Processing of blended and synthetic yarnsImportant points
Thread guideNotched or slightly tornthread guides damagethe fibres and roughenthe yarn.
Anti-ballooning ring A large bulging balloonincreases the friction onthe anti-ballooning ring,leading to mechanicaland thermal fibredamages.
RemedyReplace guides
RemedyApply heavier travellers toreduce friction on the anti-ballooning ring.In extreme cases, removeanti-ballooning ring (avoidballoon hitting onseparators!).
31
Yarn passageOperating at high traveller speeds,the contact area of the travellerwith the ring can become veryhot. If the yarn runs too close inthis area, damages might occur.
RemedyUse traveller with defined position of theyarn passage (C 1 UM, C 1 LM).For Core yarns with PES filament core usefr profile.Reduce speed if necessary.
Ring crownIf the yarn touches the ring crown,thermal damages can occur. In addition,the yarn will be roughened.
RemedyUse traveller with defined position of theyarn passage (C 1 UM, C 1 LM).Use rings with a lower ring crown(Bräcker rings).
32
Core yarns
Yarns with a filament core, which are covered by staple fibres (wrapping fibres).
When processing core yarns it must be avoided that the wrapping fibres get pushed backat the guiding points, in particular in the yarn passage of the traveller. The travellerspeeds are limited with such yarns.
We distinguish between:
• Hard core � Filament core made of PES (for sewing thread, etc.)• Soft core � Elastic filament core (Spandex, Lycra, Dorlastan, etc.)
Core Hard (PES Filament) Soft (Spandex)
Characteristics
Very delicate yarn for spinning.Due to the smooth surface of thefilament, the wrapping fibres doadhere insufficiently and may bepushed back. The lower the ratiofilament to the covering fibres, themore critical is the processing.
When running at normal (reduced)speeds, regular rings and travellerscan be used. Avoid over-stretchingof the elastic core thread.
Special attention Push back of fibres With fine counts, perfect coreguiding is required
Travellers
Shape High-bowed travellers Use regular traveller shapes (as forcotton).
Wire section fr / r (coarse counts dr) dr or udr
WeightHigher weights compared toregular yarnsSee table page 33
Lighter travellers compared toregular yarnsSee table page 33
Traveller speeds 20 to 25 m/s 25 to 30 m/s
Traveller life time 168 to 336 h 168 to 336 h
Rings
Ring finish Thermo800, ThermoTB, Carat+ All types, including Titan
Remarks
Traveller lubrication Poor lubrication Normal, sufficient for abovementioned traveller speeds.
Anti-ballooning rings Avoid, if possible
33
Core yarnsTraveller weights
Hard (PES-Filament)
Traveller recommendation, guiding valuesThe effective traveller types and numbers should be evaluated through trials
Yarn Count Ne 6 8 10 12 14 16 20 24 30 40 50 60
Traveller No ISOlow
high
280 250 250 200 180 160 125 100 90 63 50 40
355 315 315 250 224 200 160 140 112 80 63 50
Traveller Nolow
high
16 14 14 12 11 10 8 6 4 1 2/0 4/0
20 18 18 14 13 12 10 9 7 3 1 2/0
Recommendedtraveller types
Flange 2
Flange 1
C 2 HW dr, H 2 dr
H 2 fr
C 1 SH fr
C 1 SM fr
EM 1 fr
Soft (Spandex)
Traveller recommendation, guiding valuesThe effective traveller types and numbers should be evaluated through trials
Yarn Count Ne 8 10 12 14 16 20 24 30 40 50 60 70
Traveller No ISOlow
high
140 112 100 90 71 56 50 45 35,5 22,4 20 18
180 140 125 112 90 71 63 56 45 28 25 25
Traveller Nolow
high
9 7 6 4 2 1/0 2/0 3/0 5/0 10/0 11/0 12/0
11 9 8 7 4 2 1 1/0 3/0 7/0 8/0 8/0
Traveller types: same as for cotton yarns (see page 38)
34
Traveller delivery program for flange ringsFlange 1 and 1/2 normal profile
Cotto
nBl
ends
+ S
ynth
etics
14 12 11 10 8 6 4 3 2 1 1/0 2/0 3/0 4/0 5/0 6/0 7/0 8/0 10/0 12/0 16/0 20/0
26/0
22/0
16
Travellertype
Shape Wiresection
L 1 f
28/0
udr
drC 1 SL
udr
f
C 1 UL
f
dr
M 1
C 1 UM
udrC 1 LM
udrC 1 MM
udrC 1 B7/8S
frEM 1
frC 1 SM
frC 1 SH
udrC 1/2 UM
udr
udr
(Subject to modification)Range of application
High speeds possible
Normal conditions
Assignment yarn count /traveller weight see page 37Traveller No
Core
yar
ns (H
ard
core
)
see also: traveller type pages 38, 39 ; traveller weight page 37 ; finish page 23
Example for placing an order:An order should include the following specifications:
Normal profileFlange 13.2 mm
Flange 1/22.6 mm
Example: C 1 MM
Traveller shape Wire section Finish Packaging Traveller No ISO Quantity in 1'
udr Saphir AP 71 100
35
Traveller delivery program for flange ringsFlange 1 antiwedge profile / inclined flange rings SFB (Orbit) and SU
Cotto
nBl
ends
+ S
ynth
etics
14 12 11 10 8 6 4 3 2 1 1/0 2/0 3/0 4/0 5/0 6/0 7/0 8/0 10/0 12/0 16/0 20/0
16
ISO 400
Travellertype
Shape Wiresection
EL 1 f
udr
dr
C 1 EL
dr
udr
f
C 1 SL
C 1 UL
f
dr
EM 1
C 1 UM
udrC 1 LM
udrC 1 MM
frEM 1
frC 1 SM
frC 1 SH
udrPM
drRL
drhSU-B
udrSU-BF
drhSU-BM
r
dr
f
r
udr
udr
SU
(Subject to modification)Range of application
High speeds possible
Normal conditions
Assignment yarn count /traveller weight see page 37
Traveller NoCo
re y
arns
(Har
d co
re)
Antiwedge profileFlange 13.2 mm
SFB 2.8(Orbit)
36
Traveller delivery program for flange ringsFlange 2 normal and antiwedge profile
Cotto
nBl
ends
+ S
ynth
etics
14 12 11 10 8 6 4 3 2 1 1/0 2/0 3/0 4/0 5/0 6/0 7/0 8/0 10/0 12/0 16/0 20/0
18
36
26
120
80
18
36
Travellertype
Shape Wiresection
M 2 f
dr
udr
udr
dr
f
C 2 UM
C 2 MM
dr
fr
H 2
f
C 2 HW
r
C 2
fEM 2
dr
C 2 UM
dr
C 2 MM
EH 2
dr
r
udr
dr
dr
(Subject to modification)Range of application
High speeds possible
Normal conditions
Assignment yarn count / traveller weight see page 37
Traveller No
Core
yar
ns (H
ard
core
)
Antiwedgeprofile
Flange 24.0 mm
see also: traveller type pages 38, 39 ; traveller weight page 37 ; finish page 23
Example: H 2
Traveller shape Wire section Finish Packaging Traveller No ISO Quantity in 1'
dr Saphir AP 125 10
Example for placing an order:An order should include the following specifications:
Normal profileFlange 24.0 mm
37
Traveller weights for T flange, Orbit, SU
Compact yarns see page 29
The traveller weights are determined beside the yarn number by the following parameters:
• Yarn twist � Knitting � Lighter travellers• Fibre type � Blends, synthetics � 1-2 number heavier travellers• Spindle speed � Higher RPM � Rather lighter travellers• Spinning geometry
Small ring diameter � Small balloon � Lighter travellersLarge ring diameter � Large balloon � Heavier travellers
Tex Nm Ne T flange Orbit SU
PES PAC and CV
Traveller No ISO ISO ISO
100 10 681012141620243036405060708090105112132
14 18 250 315 250 31572 14 11 14 180 250 250 315 200 28059 17 9 11 140 180 224 280 140 20050 20 6 9 100 140 90 125 200 250 100 16042 24 3 7 80 112 80 112 160 250 90 14036 27 1 4 63 90 71 100 125 200 80 11230 34 2/0 2 50 71 63 90 80 160 63 8025 40 4/0 1 40 63 45 71 80 140 50 7120 50 5/0 2/0 35.5 50 31.5 50 63 112 31.5 6317 60 6/0 3/0 31.5 45 28 40 56 80 31.5 5015 68 7/0 4/0 28 40 25 40 56 71 31.5 4512 85 8/0 6/0 25 35.5 20 31.5 50 63 31.5 4010 100 10/0 7/0 22.4 28 18 25 40 508.5 120 11/0 10/0 20 22.4 16 22.47.4 135 14/0 11/0 16 20 14 206.6 150 16/0 12/0 14 18 14 185.6 180 18/0 14/0 12.5 16 12.5 165.3 190 19/0 16/0 11.2 144.5 220 22/0 19/0 9 11.2
T flange Orbit SU
The values mentioned above are guiding values.The final traveller number should be selected through trials.
38
Recommendation for Bräcker travellersT flange, Orbit, SU
Fibre
Yarn CountRange
Cotton
Compact yarns see page 29
coarseNe 6 - 16
mediumNe 12 -40
fineNe 30 - 80
super fineNe 60 - 150
Flange 1
M 1 / EM 1 drC 1 MM udr
C 1 LM udrM 1 / EM 1 f
M 1 / EM 1 udrC 1 LM udrC 1 MM udr
M 1 / EM 1 drC 1 UM udr
C 1 UL udrL 1 udrC 1 SL dr
C 1 UL fL 1 / EL 1 fC 1 MM udrM 1 / EM 1 udrM 1 / EM 1 f
C 1 SL drL 1 fC 1 EL udr
C 1 EL drC 1 UL udrM 1 fM 1 drEL 1 f
Flange 2
C 2 HW drH 2 / EH 2 dr
H 2 fC 2 MM drC 2 f
C 2 MM drM 2 / EM 2 dr
C 2 UM udrH 2 fM 2 f
M 2 udrC 2 MM dr
C 2 UM udr
M 2 fM 2 dr
OrbitSFB 2,8 PM udrSFB 2,8 PM drSFB 2,8 RL dr
SFB 2,8 RL drSFB 2,8 PM udrSFB 2,8 PM dr
SU
Travellers in bold prints are mostly used.
Traveller weights see page 37
Recommendation for Bräcker travellersT flange, Orbit, SU
PES / CV / Blends PAC
Core yarns see pages 32, 33
coarseNe 6 - 24
medium – fineNe 20 - 60 Ne 6 - 40
M 1 / EM 1 drC 1 MM udrC 1 UM udr
C 1 LM udrC 1 B 7/8 S
C 1 UM udrC 1 MM udrC 1 LM udrM 1 / EM 1 udrM 1 / EM 1 drC 1 UL udrC 1 SL dr
C 1 SH frC 1 SM frEM 1 fr
M 1 / EM 1 dr
C 2 HW drH 2 / EH 2 dr
C 2 UM udr
C 2 MM drC 2 UM udr
M 2 / EM 2 dr
SFB 2.8 PM drSFB 2.8 PM udrSFB 2.8 PM r
SU-BF udrSU-B drhSU-BM drh
SU-BM drhSU-B drhSU-BF udr
SU-B drhSU-BM drh
C 2 HW drH 2 / EH 2 dr
H 2 frC 2 UM udrC 2 MM dr
Travellers in bold prints are mostly used.
Traveller weights see page 37
39
40
Setting of the traveller cleanerFlange 1
• Under no circumstances should thetraveller touch the cleaner (yarn breaks,ring damage).
• By application of different traveller typesand/or numbers, the largest value shouldbe set.
b
Type Profile ≤ 10/0 8/0 - 4/0 3/0 - 3 4 - 10 11- 16
C 1 SL dr 1,8 1,8 2,1
C 1 UL f, udr 1,8 1,8 2,1
L 1 f, udr 1,6 2,0 2,1
C 1 MM udr 1,9 2,1 2,1* *
C 1 UM udr 1,7 1,7 1,9 2,2
C 1 EL, EL 1 f, dr, udr 1,9 2,1 2,1 2,3
C 1 LM udr 1,9 2,1 2,3 2,5 3,0
udr 2,6 3,0
C 1 SM 3,3 3,3 3,5
C 1 SH fr 3,7 4 4,1 5,2
M 1, EM 1 f, dr, udr
fr
1,9 2,1
2,7
2,2
3,0
2,6 3,0
*C 1 MM : Nr 1-6 b = 2,6 ; Nr 7-10 b = 3,0
Tangential traveller cleaner (udr, dr, f profile only)
• Suitable for high speed travellers• Recommended for all compact spinning
processes• Advantages: more efficient cleaning of the
traveller, prevention of fibre accumulation.• Important: The tangential traveller cleaner
must be installed with a distance h = 4,5 mm to the flange crown.
Traveller No 26/0 - 11/0 16/0 - 6/0 8/0 - 1 3/0 - 6 4 - 12
Distance b 1,8 2,2 2,2 2,4 2,8
b
C 1 B 7/8 S
fr
b
h
Traveller
41
Setting of the traveller cleanerFlange 2
• Under no circumstances should the travellertouch the cleaner (yarn breaks, ringdamage).
• By application of different traveller typesand/or numbers, the largest value should be set.
Traveller b
Type
C 2 UM
M 2
H2
C 2 HW
EH 2
Profile
udr
dr
f, dr, udr
f, dr
fr
dr
f, dr
r
f, dr
≤ 11/0
1,9
10/0-4/0
1,7
2,1
3/0-3
1,9
2,4
2,2
2,2
3,0
2,4
4-10
2,1
3,0
2,4
2,6
3,5
3,0
2,8
11-14
3,3
3,0
3,2
3,1
16-20
3,3
3,3
3,3
3,3
22-36
Type Profile ≤ 7/0 6/0-1/0 1-6 7-9 10-18 20-28 30-35
3,6
3,4
3,6
C2 f
r, dr
1,7
2,4
2,0
2,8
2,1
3,5
2,7
3,8
3,1
4,8
3,8
6,0
5,0
6,5
b
C 2 MM 2,4
EM 2 2,2
2,7
2,4
3,0
2,8
3,4
2,8
Tangential traveller cleaner (udr, dr, f profile only)
• Suitable for high speed travellers• Recommended for all compact spinning
processes• Advantages: more efficient cleaning of the
traveller, prevention of fibre accumulation.• Important: The tangential traveller cleaner
must be installed with a distance h = 4,5 mm to the flange crown.
Traveller No 12/0 - 4/0 6/0 - 8 3 - 36
Distance b 2,8 3,3 4,1
b
h
42
Orbit ring / traveller system
The Orbit ring / traveller system (patented world-wide) is designed for spinning at top speeds whilstproducing best yarn quality.
The special features of the Orbit system are:• Large contact area between traveller and ring
reduces the specific pressure • Optimum heat dissipation traveller to ring
The Orbit system offers the following advantages:• Increase in speed and production• High dynamic stability in traveller running• Reduction of yarn breakage• Improved and more consistent yarn quality• No thermal damage when processing synthetics
Application:Fibres: Cotton combed
Polyester/cotton blendsPolyester 100%
Yarn count range: Ne 30 to 60 recommended finer and coarser possible
Pre-conditions for best results:• High performance spinning frames• Yarns with warp twist (high strength allows high
spinning tension)• Roving yarns in high and even quality • Well performing air-conditioning
Orbit-Ring
T-Ring
Contact surface
43
Ring travellers for ORBIT rings
Shape Designation ProfileISO number
rangeApplication
SFB 2.8 PM
dr 12.5 - 125
- Cotton- Polyester - Blends medium –
coarse
udr 18 - 80
- Cotton- Blends - Compact yarns
Ne 36 and coarser
f 16 - 25 - Cotton
r 25 - 63 - Polyester - Core yarns
dr 12,5 - 71
- Cotton- (Polyester )- Blends fine yarn
counts- Compact yarns
Ne 30 and finer
PM : for all fibre types, large yarn clearance, thereforeespecially suitable for man-made fibres.
RL : small yarn clearance, especially suitable for cotton yarn,good fibre lubrication. Possible to process fine blends(cotton/polyester) and in particular for compact yarns.
The travellers for Orbit rings are used with the well-established Rapid tool (see pages 84, 85).
SFB travellers are exclusively supplied in magazinedpackaging.Traveller weights / yarn counts see page 37.
SFB 2.8 RL
44
Traveller wear and tearVisual assessment
A
B
A
B
A
B
A
B
Optimal wear distributionTraveller weight OK
Excessive wear in area BTraveller is too heavy
Excessive wear in area ATraveller is too light
Heavy wear!If more than 10% of the travellers areworn out:- Reduce changing cycle of travellers- Reduce spindle speed- Check the rings - Possibly change traveller shape, wire
section or traveller weight
45
Setting of the traveller cleanerTangential traveller cleaner
b
4,5 mm
Traveller No ISO
12.5 - 40
"b"
1,5 mm
28 - 80 1,9 mm
63 - 125 2,2 mm
Guiding value setting "b":
Caution! Under no circumstancesshould the traveller touch the cleaner.
The traveller number used at the endof the ring running-in program, i.e.also for normal operation, is decisive.
Mounting height of the tangentialcleaner:4.5 mm below the ring crown
46
SU Ring / traveller system
The SU ring / traveller system is suitable for theprocessing of synthetics (PAC, VC, PES) and blends(pre-condition is, however, a significant proportion ofsynthetics) in the medium to coarse yarn countrange. In some cases the conical, lubricated rings canbe replaced by the SU ring / traveller system.
The design features of the SU system are:• Large contact area between ring and traveller
reduces the specific pressure.• Optimum heat dissipation traveller to ring
The SU ring / traveller system provides followingadvantages:
• No lubrication required (as against conical rings;not suitable for pure wool)
• Better and more even yarn quality• Consistent yarn tension• No thermal fibre damages• Increased life cycle of travellers and rings• Higher spindle speeds• Lower yarn breakage rate• No yarn stain
SU
T-Ring
Contact surface
47
Ring travellers for SU rings
Shape Designation ProfileISO number
range
SU-B
SU-BF
SU-B
drh 31,5 - 400
udr 31,5 - 100
r 31,5 - 250- Acrylics- Fibres with strong
softening agents
SU-BM drh 35,5 - 224
- Acrylics- Polyester - Blends- Wool blends
SU-B For all synthetics and their blends with natural fibres.
SU-BF For viscose fibres, higher speeds compared to SU-B and SU-BM
SU-BM For all synthetics and their blends with natural fibres.Enlarged yarn clearance, especially suitable for delicate fibres.
The travellers for the SU-rings are used with the well provenRapid tool SU (see pages 84, 85).
FinishSU travellers are available in Saphir diffusion finish and inRecord2 (for synthetics with special softening agents).
Traveller weights / yarn counts see page 37
Application
- Acrylics- Polyester - Blends- (Wool blends)
- Viscose- Viscose blends
48
Setting of the traveller cleaner
b
Traveller No ISO
< ISO 63
"b"
1,7 mm
ISO 56 -112 1,9 mm
> ISO 100 2,1 mm
Guiding value setting "b":
Spinning rings
50
Rings, range of applicationT flange and Orbit rings
** Nova rings reduced delivery program:• Only flange 1• Ring Ø 38, 40, 42, 45: Seating measurements see Nova prospectus
10 20 24 30 40 50 60 80 105 132
Yarn count Ne
NovaBasic **
Thermo800, ThermoTB
Carat+
Strato+
NovaSelect **
Titan
OrbitRing/Traveller System
norm
alpe
rfor
man
cehi
gh
51
Ring profilesFlange-, ORBIT-, SU-rings
Flange 1/2Flange width 2.6 mm
Flange 1Flange width 3.2 mm
Flange 2Flange width 4.0 mm
OrbitSFB 2.8
SU
Universal profile
Normal profile
Normal profile
Orbit with supporting ring
SU with supporting area
Antiwedge profile
SU with supporting ring
52
Ring shapes According to machine, fixing method and ring holder
Single flangerings
Reversiblerings
Orbit rings
SU rings
Height 18 (19) mm, 12 mm 8 (10) mm
Height 8 (10) mm
Height 10 and 18 (19) mmRieter, Zinser, Toyoda with supporting ringsMarzoli without supporting ring
Height 8 to 18 mm
53
Fixing methods
Circlip (Toyoda, Zinser, Howa) Press system (page 54)
Aluminium holder (Rieter, Lakshmi) Force fit (Marzoli)
Sheet metal holder with normal ring(FA503, FA507)
Sheet metal holder with Nova ring(FA503, FA507)
Aluminium holder with single flange ring
Sheet metal holder with reversible ring
54
Bräcker Press-System
The Bräcker Press-System provides the following advantages:
• Simple, quick replacement of rings• Time needed for 1'000 rings: 1-2 hours (1 person)• No re-centring• Should a set of rings with another Ø be available (large yarn count differences), can the
replacement take place within a very short time.
Toyoda, Zinser, Howa Rieter, Marzoli, Süssen, Savio
Lifting up the Press-System rings.
55
Rings with large difference inner / outer diameter
On 18/19 mm high rings with a Ø-difference from the smallest Ø to the largest Ø of morethan 12 mm, rings with an aluminium adaptor are a better solution:
• Reduced load on ring rails and all connecting bearings.• Favourable price• On subsequent deliveries the cost for the holder is eliminated.
Example: inner Ø 40 mm, seat-Ø 57.5 mm, outer Ø 59.5 mm
Steel ring (normal ) 93 g
Steel ring with aluminium adaptor 38 g
56
Start-up proceeding for new rings (Ring running-in)
Ring fixing
The rings have to be fixed secure, horizontally and concentric with the spindle.It is not necessary to clean Bräcker rings, as the special conservation material helps thestart-up of the rings. Should the rings nevertheless be cleaned, use only a dry cloth (do notuse any solvents).
Running-in procedure (conventional rings)
Conventional rings must go through a running-in program before starting. By doing this, thering raceway is being smoothed and passivated (oxidation) through the applied travellers. Atthe same time the necessary lubrication film coming from wax, softening agents and fibrefragments is being built up.Depending on the spinning fibres, yarn counts and final speed, the spindle speed must bereduced for the first 10 to 20 traveller changes.It is essential that the ring running-in is carried out carefully, as this will improve the generalrunning conditions and in addition it will extend the ring life.
Start-up proceeding (for Titan rings)
The Titan coating can not be affected by the traveller. However, in the first phase, thetraveller has to build-up a lubrication film and this depends from the processed fibrematerial and yarn count. For regular fibres, the start-up proceeding is carried out withoutreduction of the RPM, only the first traveller change intervals are shortened. For compactyarns and very fine yarns (from Ne 80) some longer start-up program must be applied.
Selecting travellers
The same travellers as for the regular processing can be used. Often, for the first 1-3changes, travellers with a reduced weight are used.
Running-in program, start-up proceeding
Instructions corresponding to each Bräcker ring type are always provided. Upon request, aspecial adapted program can be provided too. Please contact your local agent.
For establishing a running-in program we need the following specifications:• Ring diameter• Ring type, flange• Fibre type, yarn count, twist• Final speed (RPM)• Presently used traveller (type and weight)• Present traveller life
57
Ring life time
The ring life time is dependent on various parameters. The following table explains thecorrelation. Attention: An accumulation of causes is possible.
Titan rings are less sensible and have generally a very high life time.A ring replacement is advisable, when the desired yarn quality can not be achieved anymore.
Parameter
Fibre
Yarn
Ring stressRemarks — +
Cotton Dry High waxproportion
High wax proportion increases the travellerlubrication
Man made Dull Bright Dull fibres include abrasive particles (e.g. Titan oxide)
Softening agents
Yarn count
Aggressive Lubricating Influence on traveller lubrication
Coarse Fine Higher load on heavier traveller
Twist Warp KnitWarp yarns are spun with heavy travellers,therefore higher load and lower travellerlubrication (lower hairiness).
Traveller
Shape High-bowed Low-bowed Better traveller lubrication with low-bowedtravellers
Life time Too long Right Heavy worn-out travellers damage thetraveller raceway of the rings
Performance
Traveller speed High Normal Higher load at high speeds
Ring running-in Too short As perinstruction
Ring running-in must be carried outaccording to the fibre and ring type. Titanrings need merely a start-up proceeding.
Spinninggeometry Ring diameter Smaller Larger
The centrifugal force of the traveller ishigher on small ring diameters andtherefore leads to a higher ring load.
Climaticconditions
Irregular ConstantAn irregular climate has a negativeinfluence on the general running behaviourand therefore leads to a higher ring load.
MachinesCentring Poor Good
Badly centred rings, anti-ballooning ringsand thread guides produce irregular ringload.
Vibration Strong None, low Inconsistent loads lead to premature wearand tear.
58
Bräcker ring tolerances
Bräcker rings are manufactured according to DIN ISO Norm 96-1
Bräcker ring tolerances and the necessary measuring methods are shown below:
*Acceptable Quality Level
Q specification definition Symbol Tolerance Recommended measuring method Bräcker AQL*
T flange widthDIN ISO 96-1
bDIN ISO 96-1
+ 0,15- 0
Measuring slider 2,5
Seat diameterBräcker drawing
Ød Bräckerdrawing
Measuring slider
2,5
D
d D + d = Seat diameter2
RoundnessDIN ISO 96-1
Bräckerdrawing
0,35% of the
diametervalue
Measuring slider
1,0
EvennessDIN ISO 1101
Bräckerdrawing
0,1
Plate measuring slider / thickness gauge
1,0
ConcentricityDIN ISO 1101
Bräcker NormFlange0,03
flange/seat0,10
Flange/seatAluminium
holder0,15
- Measuring slider (flange width)- Special measuring device (flange / seat)
0,65
D
Hh
D - d = max.0.35%Ø2
2
Examplein mm
Diameter Roundness deviation38 0.1342 0.1548 0.1754 0.19
H - h = max. 0,1
k
Bb B - b = k = max. 0,03
d
Designation of the ring parts, example for placing an order
A Inner diameterB Fitting diameterC Shoulder diameter
(largest outer diameter)D Ring heightD1 Height above ring railD2 Height below ring railE Flange (see page 51)F Flange widthG Flange crownH Outer flange radiusI Raceway of ringK WebL ShoulderM Slot for circlip
Example for placing an order; request for a quotationThe following specifications are required:
see page ExampleRing type Bräcker 50 TitanFlange width 51 Flange 1, 3.2 mmFlange profile 51 Normal, N98Inner diameter 42 mmFitting diameter 49 mmShoulder diameter (largest Ø) 51 mmRing height 18 mmRing fixation 53 CirclipMachine type Zinser 319
• Please send a ring sample for any new enquiry or order.• For repeat orders previous corresponding invoice number or ring drawing is sufficient.
A
C
B
IE
K
L
M
F
G
H
D2
D1
D
59
J - HZ Travellersand rings
62
Ear-shaped steel travellers (J and HZ)Designation of ring traveller parts
1 Nose
2 Head
3 Yarn passage
4 Back
5 Heel
6 Foot
7 Toe
8 Inner height
9 Head width
10 Foot width
11 Nose angle
12 Toe angle
9
11
2 3
4 8
1
5
61012
7
Traveller weights comparison chart J and HZ travellersTraveller weight in mg resp. per 1'000 travellers in g
ISO Norm 96-1: Traveller weight according to series R20 = 100 + 12,5% + 12,5%Exception (in brackets): Series R40 = 100 + 6.25% + 6.25 % + 6.25%….The ISO numbering scale secures an even proportional graduation.Bräcker travellers are manufactured according to ISO 96-2
TravellerNo
Bräcker R + F CARTER
19 250 140
europ.ISO
amerik.3/8”
HZ 9,5
255 255 136
HZ-ENeurop.
HZ-ANam. 3/8”
HZ 9,5
KANAI
SB 6HZ 9,5
SB 17J 11,1
3/8”
9,5 mm7/16”
11,1 mm
185 210 152 180
191/2 224 220
20 180 100 185 170 104 130 180 108 130
201/2 (170) 165 165
21 160 80 150 141 84 110 150 89 105
211/2 140 140 143
22 125 63 130 123 65 87,5 135 73 82
221/2 (118) 120 128
23 112 56 110 117 53 71,3 120 59 68
231/2 100 100 113
24 90 45 92 94 42 58,3 105 45 55
241/2 80 83 98
25 71 35,5 75 75 36 45,4 90 35,5 42,5
251/2 (67) 67 83
26 63 31,5 60 62 30 38,9 75 28 34
261/2 56 53 72
27 50 25 48 49 25 32,4 68 25,5 30
271/2 45 44 65
28 40 20 39 39 19 25,9 61 22 26281/2 35,5 36 58
29 31,5 16 33 32 16,2 22,7 54 18,5 22,5
291/2 (30) 31 51
30 28 12,5 29 28 13 19,4 47 16 1931 25 10,8 26 24 11,3 17,5 40 13,5 16
32 22,4 9 24 21 9,7 14,9 36
34 20 21 17 7,7 28
36 18 18 14 20
38 14 15 12
Not valid for HZ 16,7
HZ + J
63
64
Travellers for conical ringsSteel
mm Inch ’’
Ring height HType
Travellerback*
Recommendedraceway of ring*
Range of application
9,1 23/64 J 9,1 CST
J 11,1
J 11,1 B
J 11,1 CST-B
J 11,1 KST
J 11,1 KST-B
J 17,4
J 17,4 CST
J 17,4 CST-A
straight convex especially for fineworsted yarns
11,1 7/16
straight convex fine and mediumworsted yarns
coarse worstedyarns
fine to mediumworsted yarns
coarse worsted yarns
coarse worsted andsemi-worsted yarns
convex straight
convex straight
straight convex
convex straight
17,4 11/16
convex straight
convex straight
straight convex
*see page 65
H
65
Ring and traveller combinations with J travellers
Traveller in resting position Traveller in running position
Combination: convex / straight: large contact areas
Influence of the traveller shape and its contact on the ringConical rings have straight or convex raceways.
In order to obtain the optimum contact ring / traveller during running, the righttraveller combination must be selected (see following pictures):
• Raceway straight � Traveller back convex• Raceway convex � Traveller back straight
Combination: straight / straight : unfavourable contact area
Contact: no contact
66
Traveller weights for spinning worsted and semi-worsted yarns on conical rings
Tex Nm
J traveller steel Nyltex 1)Yarn count Recommended ring height
500 2
New
3,9
Bräcker No
10 - 11
ISO No ISO No 9.1
1600 - 1800 710 - 900
330 3 5,8 12 - 13 100 - 1250 560 - 630
250 4 7,8 13 - 14 900 - 1000 450 - 500
165 6 11,6 14 - 15 710 - 900 280 - 315
125 8 15,5 15 - 16 560 - 710 250 - 280
100 10 19,4 16 - 17 450 - 560 224 - 250
84 12 23,3 17 - 18 355 - 450 160 - 180
71 14 27 18 - 19 250 - 355 125 - 140
63 16 31 19 - 20 180 - 250 112 - 125
56 18 34,9 19 - 21 160 - 250 100 - 112
50 20 38,8 20 - 21 160 - 180 90 - 100
42 24 46,5 21 - 22 125 - 160 80 - 90
36 28 54,3 22 - 23 112 - 125 71 - 80
31 32 62 23 - 24 90 - 112 63 - 71
28 36 69,8 23 - 25 71 - 112 50 - 63
25 40 77,5 24 - 26 63 - 90 40 - 56
22,5 44 85,3 24 - 27 50 - 90 31,5 - 40
20 50 96,9 25 - 28 71 - 40
18 56 108,0 26 - 29 31,5 - 63
16,5 60 116,3 27 - 30 28 - 50
14,5 70 136 28 - 31 25 - 40
12 85 165 29 - 32 22,4 - 31,5
10 100 194 30 - 34 20 - 28
8,5 120 232 31 - 34 20 - 25
7,2 140 270 32 - 36 18 - 22,4
11.1 17.4
1) for detailed information see our special Nyltex brochure.Ring height recommended
possible
The recommended traveller weights are guiding values and based on average ring diametersand spindle speeds. The optimum traveller weight is best determined through practical trialsand is dependent on ring diameter, yarn material, spindle speeds, etc.
Steel / Nyltex: better select the numbers in bold prints.
67
Travellers for vertical ringsSteel
mm
For ring heights 25,4 and 38,1 use Nylon travellers (see pages 80, 81)Chrome plated (CPH) travellers see page 70
H
RingType
HZ 9,5
CSTCST
Express
CSTBS
CSTBS
Express
RPCST
ExpressRST
For spinning andtwisting of fineworsted yarns,filaments and sewingthreads.
10,3 HZ 10,3
For spinning andtwisting of worstedyarns, sewing threadsand man-made fibres.Profile: round for wooland synthetics,half flat for coarsecounts.
11,1 HZ 11,1 For twisting offilaments
16,7 HZ 16,721/32
For spinning ofwoollen yarns andtwisting of all kinds ofyarns.
Range of application
7/16
3/89,5
13/32
Inch’’
Ring height H Traveller shape
68
Traveller weights for twisting with steel travellers on verticalrings (HZ 9.5/HZ 10,3/HZ 11,1/HZ 16,7)Correlation of twisted yarn count to traveller number (guiding values)
Tex Nm NeW
American No(only HZ 9,5)
Traveller numbers (for the corresponding twist)
European No
4 - ply 2 - ply 4 - ply 6 - ply
Bräcker-No
ISO- No
500 2 3,9
4,8
5,8
7,8
11,6
15,5
19,4
23,3
27
31
34,9
38,8
46,5
54,3
65,9
77,5
96,9
104,6
116,8
400 2,5
330 3
250 4
165 6
125 8
100 10
84 12
71 14
63 16
56 18
50 20
42 24 13 710
36 28 14 560
30 34
25 40 16 355
20 50
18,5 54 17 250
16,5 60
164,712 85 19 140
135,614,5 70 18 200
193,810 100 20 100
Bräcker-No
ISO- No
4000
5000
3550
3150
2500
1800
1250
1000
12
13 710
14 560
15 450
16 355
17 250
224
18 200
160
19 140
112
21 80
90
22 63
900
Bräcker-No
2
4
5
6
8
10
12
13
15
16
17
18
19
19 1/2
21
21 1/2
23
24 1/2
24
26
14
ISO- No
9000
7100
5600
5000
4000
3150
2500
1800
1250
1000
900
710
560
450
400
355
280
250
160
180
125
1600
Bräcker-No
4/0
2/0
1
2
4
6
8
10
12
13
14
15
16
17
17 1/2
18
18 1/2
19
21
20
22
11
ISO- No
5600
4500
3550
3150
2500
2240
1800
1600
1250
1000
900
710
560
450
250
355
180
2800
Bräcker-No
1
3
5
6
8
9
10
11
12
13
14
15
16
17
19
18
20
7
Single yarn
Traveller weights for spinning, see page 69
69
Traveller weights for spinning on vertical ringsCorrelation of yarn count to traveller number (guiding values)
tex Nm New
Steel
ISO - No Bräcker No US 3/8”European No HZ 9,5
Nylon
ISO - No
165 6 11,6 1000/900 13/14 450 - 355
125 8 15,5 900/560 14/16 13/14 315 - 250
100 10 19,4 710/450 15/17 13/15 224 - 180
84 12 23,3 560/355 16/18 14/16 180 - 140
71 14 27 450/250 17/19 15/17 160 - 125
63 16 31 355/180 18/20 16/18 140 - 112
56 18 35 250/160 19/21 17/19 125 - 100
50 20 39 180/125 20/22 18/19 100 - 90
42 24 47 125/112 22/23 19/20 90 - 80
36 28 54 112/90 23/24 20/21 80 - 71
31 32 62 112/71 23/25 20/21 71 - 63
28 36 90/63 24/26 21/22
25 40 63/50 26/27 22/24
22 44 63/40 26/28 22/25
20 50 50/31,5 27/29 23/26
18 56 40/31,5 28/29 24/26
16 60 31,5/28 29/30 26/27
14 70 28/25 30/31 27/28
For coarser yarns use exclusively Nyltex / Steeltextravellers (see our special Nyltex brochure)
The recommended traveller weights are guiding valuesand based on average ring diameters and spindlespeeds. The optimum traveller weight is best determinedthrough practical trials and is dependent on copdiameter, yarn material, spindle speeds, etc. The travellerweight is correct when the wear on the traveller back,traveller head and traveller foot is well distributed.
70
CPH Chromit travellers
During draw-twisting the stress on the yarn contactarea is extremely high. In case of damages(notching), fibril breaks may occur.
Such damages can be prevented by using travellerswith chrome-plated, wear resistant yarn contact area.
Express toe for gentle insertingon sintered rings
Traveller back and traveller footwith special finishing
Yarn passage with specialchrome-plating
For the application of Nylon travellers for coarse filaments we recommend Steeltex travellers(see pages 80, 81).
CPH = Chrome Plated Head
Traveller weights for draw twisting with CPH Chromit travellersCorrelation of twisted yarn count to traveller number (guiding values)
Yarn count (twist) Traveller weights
dtex den European No American No (HZ 9,5)
Delivery program CPH travellers
CST r
HZ 9,5 3/8"
HZ 10,3 13/32"
HZ 11,17/16"
CST BS r
CST Express r
RP CST Express r
17 15 34 - 32 28 - 27
22 20 32 - 29 28 - 26
33 30 31 - 29 27 - 26
44 40 29 - 28 27 - 25
56 50 29 - 27 27 - 26
67 60 28 - 26 25 - 23
78 70 28 - 26 25 - 23
90 80 27 - 25 24 - 22
100 90 27 - 25 24 - 22
110 100 26 - 24 22 - 21
122 110 26 - 24 22 - 21
133 120 25 - 23 22 - 21
150 135 24 - 22 21 - 20
167 150 23 - 21 20 - 19
200 180 22 - 20 19 - 18
220 200 22 - 19 19 - 18
H
71
ISO No
20 - 22,4
22,4 - 31,5
25 - 31,5
31,5 - 40
31,5 - 50
40 - 63
40 - 63
50 - 71
50 - 71
63 - 90
63 - 90
71 - 112
90 - 125
112 - 160
125 - 180
125 - 250
72
CPH Chromit travellers, manufacturing tolerancesComparison table ISO No / European No / American No
ISO - No
250
200
180
160
140
125
112
Bräcker No
European No American No (HZ 9,5)
Traveller weights in grams/1000 travellersTolerance: ISO weight + 6% *
19
20
21
211/2
22
23
18
19
250 - 265,00
200 - 212,00
180 - 190,80
160 - 169,60
140 - 148,40
125 - 132,50
112 - 118,72
100 231/2 20 100 - 106,00
90 24 90 - 95,40
80 241/2 21 80 - 84,80
71 25 71 - 75,26
63 26 22 63 - 66,78
56 261/2 23 56 - 59,36
50 27 50 - 53,00
45 271/2 24 45 - 47,70
40 28 40 - 42,40
35,5 281/2 25 35,5 - 37,63
31,5 29 26 31,5 - 33,39
28 30 28 - 29,68
25 31 27 25 - 26,50
22,4 32 22,4 - 23,74
20 34 28 20 - 21,20
18 36 18 - 19,08
16 29 16 - 16,96
12,5 30 12,5 - 13,25
* The traveller weight increases when head part is chrome-plated.
Designation of the ring parts
Example for placing an order, request for a quotationThe following specifications are required:
see page ExampleType of ring ConicalMaterial SteelRing height 74 9,1 mmInner diameter 45 mmFitting diameter 52 mmShoulder diameter (largest Ø) 54 mmRing fixation Force fitLubrication system 75 4+4 lubrication points
Depending on the execution, further details are requested.Especially milling/drilling points for the lubrication must be exactly specified.Please send a sample ring with every first order.
A Inner diameterB Fitting diameterC Shoulder diameter
(largest diameter)D Ring heightD1 Height above ring railD2 Height below ring railL ShoulderN Upper racewayO Inner racewayP Lower racewayQ Yarn recess R Back slope feature for better nylon
travellers grip.
73
B
A
R
L
Q
O
P
D1
D2
N
C
B
A
Q
L
N
O
P
D1
D2
D
CConical ring
Vertical ring (HZ-BS)
D
74
Recommended ring heights for vertical HZ rings
recommended
possible
Nyltex and Steeltex only (see special Nyltex brochure)
Tex
Yarn count
Nm Ne
4,8 mm3/16”
Ring height
6,35 mm1/4”
7,5 mm19/64”
9,5 mm3/8”
10,3 mm13/32”
11,1 mm7/16”
16,7 mm21/32”
25,4 mm1”
38,1 mm11/2”
Use
Nyl
tex/
Stee
ltex
tra
velle
rs
10000 0.1 0.25000 0.2 0.43300 0.3 0.62500 0.4 0.81650 0.6 1.2
1250 08 1.6
1000 1 2840 1.2 2.3
590 1.7 3.3
330 3 5.8
250 4 7.8165 5 12125 8 16
100 10 19
84 12 23
63 16 31
50 20 3942 24 4731 32 62
28 36 66
25 40 78
Lubricating systems for conical rings
Rings J 9.1 – J 11.1• Standard• 4+4 lubrication points• 4 lubrication points on the upper and
on the inner raceway, fed through onewick
• For worsted yarns and blends in themedium yarn count range
• Reference: 30
Rings J 9.1 – J 11.1• 3+3 lubrication points• 3 lubrication points on the upper and on
the inner raceway, fed through one wick• For fine and delicate yarn• Small ring diameter• Reduced lubrication effect • Reduced risk of soiling• Reference: 30-1-3
Rings J 17.4• 4+4 lubrication points• 4 lubrication points on the upper and
on the inner raceway, fed through twowicks
• For coarser yarns and twisted yarns• Reference: 32
Attention: Do not remove or cut off protruding wicks.The protruding ends will be cut neatly by the travellers during the running-in phase.
75
Running-in of self-lubricating Bräcker rings(Steel rings and sintered metal rings)
Nm 20 and coarser Nm 20 and finer
Spindle speed Traveller change after Traveller change after Ring cleaning
80 %
90 %
100 %
1 hour 1 hour yes
1 doff 1 doff
3 doffs 2 doffs
8 doffs 6 doffs
1 doff 1 doff yes
3 doffs 2 doffs
8 doffs 6 doffs
16 doffs
1 doff
12 doffs
1 doff yes
3 doffs 2 doffs
8 doffs 6 doffs
16 doffs 12 doffs
Running-inThe following running-in program is set out for normal conditions. In case of strongertraveller wear and tear, the changing intervals have to be adjusted accordingly.
Maintenance• The wicks do become resinous and contaminated with an increasing running time.
Therefore, from time to time rings, ring rails or holders must be cleaned with petrol andrings have to be re-oiled. If necessary, replace the wicks.
General• A ring running-in must only be carried out when steel travellers are used. It does not
apply when Nytex/Steeltex travellers are used. However it has to be done subsequently,should steel traveller be used later on.
Preparation• After installation in the ring rails, the rings must be cleaned with an oily cloth from the
rust protection oil (use no solvents).• Do not cut off or remove the slightly protruding wicks (steel rings). These will be cut off
from the travellers during the first rotations.• Select the oil type according to the application (see page 77)• Fill up the lubrication channels with oil and wait 12 to 24 hours before starting.Yarn type, traveller weight• Use insensitive, dark coloured yarns since oil splashes are unavoidable during the
running-in phase.• Use the normal traveller weightStarting procedure• Before the first run-in, oil all the rings by hand to guarantee a full lubrication film.
76
Lubricants for self-lubricating rings
The lubricants are classified according to ISO viscosity grades (VG):• Low viscosity � highly fluid e. g. ISO VG 15• High viscosity � semifluid e. g. ISO VG 68
The lubricants have to be adapted to the application.Check details with the suppliers.
Application recommendation (guiding values)
Traveller type Viscosity ISO VG
Steel 32
Nyltex/Steeltex 32 / 46
Ring height 4,8 - 11,1 16,7 - 38,1
Traveller type Viscosity ISO VG
Steel 15 / 32 15 / 32
Nyltex/Steeltex 23 / 46 48 / 68
Sintered metal rings
LubricantsSupplier
Synthetic oilsViscosity ISO VG
LubricantsSupplier
BP
Mineral oils
Viscosity ISO VG
Energol HLP - HM 32
46 68
Teresso 32Nuto 32, Nuto H 32Esso
Renolin B 10 VG 32FuchsLamora HLP 32KlüberMobil DTE 24MobilTellus Oil 32Vexilla Oil 32Shell
Rando HD 32Alcor DD 32
Textol RLA ISO 32
Energol HLP - HM 46
Teresso 46Nuto 32, Nuto H 46
Renolin B 15 VG 46
Lamora HLP 46
Mobil DTE 25
Tellus Oil 46Vexilla Oil 46
Rando HD 46Alcor DD 46
Textol RLA ISO 46
Energol HLP - HM 68
Teresso 68Nuto 32, Nuto H 68
Renolin B 20 VG 68
Lamora HLP 68
Mobil DTE 26
Tellus Oil 68Vexilla Oil 68
Rando HD 68Alcor DD 68
Textol RLA ISO 68
Texaco
32
Zeller + Gmelin
15 22 46 68BP Enerssyn RC-S 46 Enerssyn RC-S 68
Fuchs Pantolube Polar 15 S
Klüber Syntheso XOL 12
Mobil Mobil SHC 626 Mobil SHC 26
Texaco Hydra 46Rando Oil HDZ 15 Hydra 68
Zeller + Gmelin Textol RLS ISO 46Textol RLS ISO 15 Textol RLS ISO 22 Textol RLS ISO 68
Pantolube Polar 22 S Plantohyd 68 S
Suppliers of lubricants (incomplete selection)
Rings made of steel (full steel)
77
78
Inserting tools for magazined travellers
Bräcker Fix BoyFor ear-shaped travellers J and HZ, AP magazined
Availability for magazined travellers according to delivery program
Type For traveller shape
2091-J J 9.1
2111-J J 11.1
Conical rings
Type For traveller shape
2095 HZ 9.5
2103 HZ 10.3
2111 HZ 11.1
Vertical rings
Nyltex / Steeltex
80
HZ 4,8CLB
HZ 9,5CE CLE CLB CLB/W CS
HZ 7,5CLB
HZ 6,35CLB/W CE CLB
HZ 10,3 HZ 11,1CS DE
CE CLE CS
CS
HZ 16,7 (American) HZ 17,1GCE GCLE
• The higher coefficient of friction of Nylonallows the application of a traveller withabout half the weight of a steel traveller,for a same yarn count.
• Reduced ring stress
• Application of sintered rings over the entire yarn count range
• Easy and unproblematic inserting of the travellers, also heavy numbers
• Higher speedsMaterials• Nyltex Lubridur E � Standard material � Excellent gliding properties• Nyltex ER � Glass fibre reinforced � Increased life and rigidity of the traveller• Steeltex � Metallic insert at the yarn � For abrasive fibres, filaments
passage area
Delivery program Nyltex /Steeltex travellers
For vertical rings twisting, draw-twisting
Nyltex and Steeltex travellersFor detailed information ask for our special brochure
For the processing of coarse (heavy) yarns and twists, the use of Nylon travellers instead ofsteel ones is recommended.
Advantages of Nylon travellers:
HZ 16,7 (European)
81
S
HZ 38,1CE CLE CS
HZ 25,4CE VA US
J 9,1 J 11,1R
J 17,4E LE SE LE S
FA 2 FU FZ Fi2 F4
For conical rings worsted yarns and semi-worsted yarns
"F" series
wet spinning of flax yarnson flange rings
CS
Tools
84
Inserting tools for magazined travellers
Bräcker Rapid for C-shaped, Orbit and SU travellers
Characteristics • Slender and easy to use tool, specially suited to small gauges or when ring data is
installed.• Possible threading the yarn in the traveller when inserting • Simple setting with traveller as a gauge• Ergonomically simple, untiring inserting
Range of applications see page 85
Rapid Strap (magazined systems see page 87)
Rapid AP (magazined systems see page 87)
Rapid inserting tools for magazined travellersRange of applications
Wire section
L 1
M 1, EM 1
C 1 UL
C 1 SL
C 1 UM
C 1 LM
C 1 MM
EL 1, C 1 EL
C 1
M 2, EM 2
H 2, EH 2
C 2 UM
C 2 MM
C 2 HW
C 2
Tool No Storing bar
Rapid 400679.xxx
Profile679.252.xx
One tool for each type of traveller. Exchange of storing bar not possible.
Bräcker ISO
401/402* .01all all
408 .03all all
419/420* .01all all
433/434* .01all all
424/425* .07all all
424/425* .07alle alle 405 .07all all
427 .0112/0 - 2 18 - 71
428 .031 - 12 63 - 200
441/442* .0518/0 - 3 all
448 .236/0 - 6 31.5 - 100
447 .277 - 14 112 - 250
602/603* .51all all
617 .53all all
611 .55all all
620 .514/0 - 6 40 - 100
623 .537 - 12 112 - 200
646 .536 - 26 100 - 425
637 .736/0 - 6 31.5 - 100
EM 1C-shaped
fr
409 .04all all
C 1 SM 736 .55all all
C 1 SH, H 2 923/730 .53all all
SU-B, -BM, -BF 851 679.254all all
SFB 2.8 PM, RL
all
all 862/863*
AP
Strap
679.255all all
636 .757 - 20 112 - 355
Traveller No range 1)
C-sh
aped
f,dr
,udr
Traveller shape
* Fine version: for travellers 8/0, ISO 25 and lighter
1) for heavy travellers (above No 10, ISO 160) use Bräcker Boy.Availability of magazined travellers according to delivery program.
85
86
Bräcker Boy
The conventional tools are preferred (only AP magazined) for special applications and whenthe use of Rapid becomes impossible.
Type
C 8 1 (3.2mm)
2 (4.0mm)from outside to inside
1 (3.2mm)
2 (4.0mm)from inside to outside(for ring Ø � 48mm)
C 9
C 71
C 72
Flange Inserting of travellers
Magazining systems
Bräcker AP (Automatic Packing)
• Magazining system for C and ear-shaped travellers
• Flexible system for easy handling• Traveller designation (type and No)
on AP rod (to avoid mix-ups).
Bräcker Strap
• The traveller is taken up on a profile strap, up to 10'000per spool
• Strap system for:• Orbit travellers• SU travellers• C-shaped travellers with
fr-Profile
Availability for magazinedtravellers according to deliveryprogram.
87
88
Bräcker Rapid
Profit when using Bräcker Rapid for traveller change
The Bräcker Rapid provides following advantages:• Fast and easy inserting of travellers• Reduced labour costs• Shorter idle times of machines, therefore higher production• Threading during traveller change possible• No traveller losses• Minimal traveller deformation• Easy tool adjustment• Suitable for small spindle gauges
Calculation base:
Ne 30, 20,5 TPI, 17'000 RPMSpinning machine with 1'080 spindles, 25 traveller changes per yearTime for inserting travellers: with Rapid 1 sec. / by hand 3 sec
12’000
8’000
4’000
0
10 20 30
Increase of production / year by using the Rapid
Number of spinning frames
kg
Traveller inserting and removing tools
Clix
• For inserting (loose) and removingthe following travellers:
• C-shaped• Orbit• SU• J and HZ (light)
Outy
• For removing C-shaped and Orbittravellers
• Removed travellers are collected inthe handle
Type Traveller type
101 Flange 1 (3.2 mm)High-performance travellers
102
103
RL pincers
• For inserting and removing heavy J and HZ travellers made of steeland Nylon
For steel travellers:
• HZ 9,5 / 10,3 / 11,1 / 16,7• J 11, 1 / 17,4
For Nyltex travellers
• HZ 16,7 / 25,4
89
Orbit travellers
Flange 2 (4.0 mm)High-performance travellers
90
Cleaning toolsFluff removers for cleaning of textile machines
Flypik
Handy, light tool.Suitable for people with small hands.Exchangeable tip.
Spindle length 200, 250 mm
Rolsprint
Technically advanced tool with gearsof hardened steel and special easyrunning ball bearings.Exchangeable tip.
Standard spindle lengths:200/315/400/500
Roltex
Simple, reliable tool. Ball bearingwith free running. Spindle made ofanti-magnetic steel.Exchangeable tip.
Standard spindle length:200/315/400 mm
Special spindle length:500/630/800 mm
92
93
Yarn carriers
94
Yarn carriers
Bräcker manufactures Thermoplastic Yarn carriersfor ring spinning machines and roving frames.
The products are designed for the highperformance segment. Therefore, only first gradecompounds are processed.
ABS (Acrylnitril-Butadien-Styrol)For the general range of application of spinning tubes and for roving bobbins.
PC 40 (Polycarbonate)For high performing spinning tubes.
Available colours 30 different colours enable a clear product differentiation.
Delivery program
• Spinning tubesAccording to ISO-DIN 368 with taper 1:38 and 1:64for state-of-the-art high performance machines such as Marzoli, Rieter, Toyoda, ZinserFurther dimensions upon request
• Roving bobbinsWide supply for the most popular machines existing on the market.
Ask for our special documentation or for a quotation.
Summary of spinning tube materials
ABS Acrylnitril –Butadien-Styrol
PC 40 Polycarbonate
Material
< 18'000
< 25'000
Max. speedRPM
Good
Very good
Mechanicalstability
Sufficient
High
Impact strength
< 0.25mm
< 0.25/0.2mm
Run-outtolerances
No
130°C
Steamable
Spinning tubes for Rieter and Zinser RSP frames
Rieter Spinning tubes
• Rieter requests for their high speed ring spinning machines with the stationary ROBOdoff System awithdrawing force on the tubes lower than 15N.
• For spindle speeds over 18'000 RPM onlypolycarbonate guarantees a precise concentricrunning
• On the other hand, the gliding properties ofpolycarbonate does not allow a perfect doffing.
• The solution: Rieter doffer tubes with integratedsliding bush made of PBTB, a thermoplast with lowcoefficient of friction.
• The perfect combination: A guarantee of long-term stability combined with reduced applicationpressure.
Zinser Spinning tubes
• Spinning tubes for Zinser ring spinning machines type 319/320 with doffer with inside gripper mustbe equipped for a faultless doffing with catchinggrooves.
• In case of non-utilisation of the knee-brake(stopping of the spindle by hand) the tubes can bedamaged through the spindle clutch.
• The solution: Tubes with integrated wear-resistantDelrin bush.
95
96
Anti-ballooning ring 4
AP (Automatic Packing) 87
Blended and synthetic yarns 30
Bräcker Boy 86
Cleaning tools 90
Clix 89
Compact Spinning 29
Conical rings 65
Contact areas 28
Cop hairiness 11
Core yarns 32
CPH Chromit travellers 70
CPH manufacturing tolerances 72
Cutex 91
Cutting tools 91
Designation of ring parts, flange59
Designation of ring parts, J / HZ 73
Designation of ring parts T-flange59
Draw twisting 71
Ear-shaped travellers 62
Finishing treatments 23
Fixing methods rings 53, 54
Flypik 90
Formulas 6, 9
Hairiness 10 - 13
HZ travellers 67
Inserting + removing tools 89
Inserting tools flange 84
Inserting tools J / HZ 78
J travellers 64
Lubricants for self-lubricating rings77
Lubricating systems 75
Magazining systems 87
Motions of the ring traveller 27
Neps 17
Nyltex travellers 79 - 81
Oblique flange rings 42 - 48
Orbit 42
Outy 89
Press System 54
Rapid Inserting tools 84, 88
Ratio ring Ø / tube 4
Ring heights conical rings 66
Ring heights vertical rings 74
Ring life time 57
Ring profiles 51
Ring running-in flange rings 56
Ring running-in self-lubricatingrings 76
Ring shapes 52
Ring surface condition 13
Ring tolerances 58
Ring travellers flange34 - 36, 38, 39
Ring travellers for Orbit rings 43
Ring travellers for SU rings 47
Rings, short staple 50
Rolsprint 90
Roltex 90
Roving bobbins 94
Secutex 91
Setting of the traveller cleanerflange 40, 41
Setting of the traveller cleaner Orbit45
Setting of the traveller cleaner SU48
Spinning geometry 5
Spinning rings 50, 73
Spinning tubes 94
Steeltex travellers 80, 81
Strap 87
SU 46
Traveller finishing treatment 23
Traveller friction 24, 25
Traveller position 26, 27
Traveller shape 34-36, 38, 39
Traveller speeds 9
Traveller wear and tear Orbit/SU 44
Traveller weights flange 8, 37
Traveller weights for draw twisting71
Traveller weights J / HZ 63
Traveller weights Orbit/SU 37
Travellers for conical rings 64
Travellers for flange rings 34 - 36
Travellers for Orbit rings 43
Travellers for SU rings 47
Travellers for vertical rings (HZ) 67
Tubes 94
Wire sections 22
Yarn breaks 14, 16
Yarn carriers 93 - 95
Yarn clearance 21, 26
Yarn hairiness 11
Yarn numbering systems 6, 7
Yarn quality 13
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Index
AGPfäffikon-Zürich - Switzerland
SAWintzenheim-France