weldlok grating manual

GRAHAM GROUP A WHOLLY AUSTRALIAN OWNED COMPANY

G R AT I N G

THE COMPANY

WELDLOK INDUSTRIES, a division of the Graham Group, has

been manufacturing and galvanising gratings for over 35 years.

Our focus on customer satisfaction, is backed by a solid

foundation of engineering expertise, high technology and

advanced manufacturing processes. These factors have played a

major role in establishing WELDLOK INDUSTRIES as a leading

supplier of gratings in Australia and the Pacific Rim.

This comprehensive manual will provide architects, drafts-

persons, fabricators and engineers with detailed information on

the full range of WELDLOK Grating and associated products.

CONTENTS

Specification and Construction 4

Series 30 Grating 6

Series 30 Load Tables 7

Series 40 Grating 8


Series 60 Grating 10


Stair Treads 12

WELDLOK Ancillary Items 13

Fastening Methods 14

Installations 15

WELDLOK Heavy Duty Gratings 16

Diamond Mesh 18

WELDLOK Drainage Products 19

WELDLOK Livestock Gratings 20

WELDLOK Steel Armour Floor Tiles 21

WELDLOK Interlock Aluminium Grating 22

WELDLOK Balltube 24

Galvanising Services 25

Ordering Information 26

Drafting Information 27

Manufacturing Tolerances 28

Installation Tolerances 29

Grating Terminology 30

DISCLAIMERInformation contained in this manual

is supplied in good faith and withthe view to avail the user in thecorrect selection of our products.

Whilst every care is taken toensure that the information

contained in this brochure iscorrect, no warranty ismade nor is any conditionexpressed, or implied.

WELDLOK

GRAT ING

3

W E L D L O K I N D U S T R I E S P T Y L T D W E L D L O K I N D U S T R I E S P T Y L T D

WELDLOK

GRAT ING

PLAIN SERRATED

QUALITY ASSURANCE STANDARDS

WELDLOK is currently implementing a system that ensures all

products and manufacturing processes are in accordance with

quality assurance programme AS/NZS ISO 9002:1994.

CONSTRUCTION

WELDLOK Forgebar grating is constructed of Load Bearing Bars

in various depths and thicknesses with lateral restraint provided

by 6mm square twisted Cross Bars forge welded to the upper

edges of the Load Bearing Bars. This process produces a product

of one piece construction with a high strength to weight ratio

which meets the requirements of Australian Standard 1657-

1992 and British Standard 4592-1970.

MATERIAL

The Load Bearing Bars in WELDLOK Forgebar gratings are

manufactured from steel that complies to the following

equivalent standards: AS 1594H250

AS 3679250

WELDLOK FORGEBAR PRODUCT CODING

Plain

WELDLOK grating supplied with plain Load Bearing Bars and

6mm square twisted Cross Bars.

Serrated

Most WELDLOK gratings can be supplied with our unique

serrations which are produced during the slitting of our material.

This process provides a regular serration with a sharp edge

ensuring maximum traction for slippery conditions.

4

Cross Bar Pitching

Optional if serratedLoad Bars are

required

Load Bar Pitchings

Load BarDepth

WELDLOKs serrated grating has been tested by a recognised

NATA laboratory for its co-efficient of friction and was found to

be equal or slightly better than other similar local products.

More importantly, because of WELDLOKs unique method of

manufacture, the loss of load carrying capacity due to these

serrations averages less than 8%.

Refer to serrated conversion factor shown in load tables when

calculating the load bearing and spanning capacity.

Cross Bar Pitch

A = 100mm Centres

B = 50mm Centres

Load Bar Size

From 20 x 3mm to 65 x 5mm

Load Bar Pitch

Series 30 30mm Centres



A S 30 32 5

Nominalthickness


Finishes

WELDLOK Gratings are available in a choice of three finishes:

1. Hot Dipped Galvanised

WELDLOK has its own in-house galvanising plant, providing a

24 hour service. The hot dip galvanising process produces a

durable, abrasion resistant coating of metallic zinc and zinc-iron

alloy layers metallurgically bonded to the steel base, at a bath

temperature of 450C. Hot dip galvanising conforms to the

equivalent following standards:

Australian/New Zealand Standard AS/NZS 4680:1999

British Standard BS729-1971

American Standard ASTM-A123-73

2. Black Bitumen Dipped

An economical paint finish which is best suited to indoor

installations, or mining applications in a dry climate.

Note: there is no pre-treatment of steel before dipping.

This finish is not recommended in corrosive areas.

3. Untreated (No surface treatment/protection)

Normally supplied on stock mats or panels to customers who

wish to perform their own fabrication on grating.

AVAILABILITY

WELDLOK stock the most commonly used types of gratings in

standard mat sizes. For standard mat sizes refer to pages 6, 8

and 10. For fabricated panels delivery time will be confirmed at

the time of order. Having our in-house galvanising plant enables

us to offer shorter lead times when this service is required.

NON STANDARD PRODUCTS

Over the past years WELDLOK has made thousands of tonnes of

special purpose gratings designed to suit unique loading and

applications. If you have a requirement that is not covered by

our standard range, contact our Sales Department, they will be

pleased to assist you.

5

WELDLOK

GRAT ING

DESIGN CRITERIA

The figures shown in all safe load tables have been calculated in

accordance with the following data:

1 Loading Code AS 1170-1 load combination 1.25 x Dead Load

and 1.5 x Live Load.

2 Steel Structures Code AS 41001990.

3 Mass calculated with grating in an untreated and unedged

condition.

4 Minimum yield strength of steel 260 MPa.

5 Load calculated in accordance with an allowable bending

stress 171.6 MPa (0.66 Fy).

6 Load Bars are assumed simply supported and unserrated.

7 Spans have been based on maximum of 5mm deflection

which is a limiting deflection for pedestrian comfort.

See Load Tables on Pages 7, 9 and 11.

6WELDLOK

SER IES 30

GRAT ING


SERIES 30 GRATING 30mm CENTRES (formerly Series 1)

This grating is virtually an international standard on all major

resource projects. Our Series 30 gratings have a high load

carrying capacity. WELDLOK panels can be supplied in a serrated

finish to suit offshore oil production platforms, oil refineries, or

any applications where additional walkway safety is required.

For flooring that is subjected to high impact loads, WELDLOK

suggest that the grating be supplied with Cross Bars on

50mm centres.

A 30

B 30

S E R I E S 3 0 S TA N D A R D M AT S I Z E S

LOAD BARTHICKNESS

5mm

SPAN x WIDTH

6100 x 1053mm 36

36

3mm

6100 x 1055mm

NO. OF LOAD BARS

CROSS BAR PITCH

LOA

D B

AR

PITC

H

100

30

CROSS BAR PITCH

LOA

D B

AR

PITC

H

50

30

S E R I E S 3 0 S A F E L O A D A N D D E F L E C T I O N TA B L E

A30203

B30203

SPANS (mm)

A30205

B30205

A30253

B30253

A30255

B30255

A30323

B30323

A30325

B30325

A30403

B30403

A30405

B30405

A30455

B30455

A30505

B30505

A30555

B30555

A30655

B30655

S E R I E S 3 0

WELDLOKTYPE

A30203B30203

A30205B30205

A30253B30253

A30255B30255

A30323B30323

A30325B30325

A30403B30403

A30405B30405

A30455B30455

A30505B30505

A30555B30555

A30655B30655

MAXIMUM SPAN (mm) FOR VARIOUS LOADSWITH 5.00mm DEFLECTION

2.5 KPa 7.5 KPa

1190 905

1355 1040

1430 1060

1610 1225

1740 1306

1940 1480

2020 1530

2290 1746

2450 1905

2700 2060

2900 2210

3255 2606

WELDLOKTYPE

20x3

20x5

25x3

25x5

32x3

32x5

40x3

40x5

45x5

50x5

55x5

65x5

NOM.LOADBARSIZEmm

18.8

21.8

29.5

32.5

22.8

25.8

36.2

39.2

28.4

31.4

45.5

48.5

34.9

37.9

56.2

59.2

62.9

65.9

69.6

72.6

76.2

79.2

89.6

92.6

MASSkg/m2

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

CROSSBAR

PITCHmm

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

300

100.9

0.80

169.4

0.80

158.9

0.64

264.8

0.64

260.3

0.50

433.8

0.50

406.7

0.40

677.9

0.40

858.0

0.36

1059.0

0.32

1281.0

0.29

1790.0

0.25

450

45.0

1.80

75.33

1.80

70.62

1.45

117.7

1.45

115.7

1.13

192.8

1.13

180.7

0.90

301.3

0.90

381.3

0.80

470.7

0.72

569.6

0.66

795.6

0.56

600

25.20

3.22

42.37

3.22

39.72

2.57

66.20

2.57

65.08

2.01

108.4

2.01

101.7

1.61

169.4

1.61

214.5

1.43

264.8

1.29

320.4

1.17

447.5

0.99

750

15.94

5.00

26.96

5.00

25.42

4.02

42.37

4.02

41.65

3.14

69.42

3.14

65.08

2.51

108.4

2.51

137.2

2.23

169.4

2.01

205.0

1.83

286.4

1.55

900

7.67

5.00

13.00

5.00

15.24

5.00

25.40

5.00

28.92

4.52

48.21

4.52

45.20

3.62

75.33

3.62

95.30

3.22

117.7

2.90

142.4

2.63

198.9

2.23

1050

4.11

5.00

7.02

5.00

8.22

5.00

13.71

5.00

17.24

5.00

28.75

5.00

33.20

4.93

55.34

4.93

70.04

4.38

86.47

3.94

104.6

3.58

146.1

3.03

1200

4.11

5.00

4.82

5.00

8.03

5.00

10.11

5.00

16.86

5.00

19.73

5.00

32.89

5.00

46.87

5.00

64.27

5.00

80.11

4.68

111.8

3.96

1350

5.01

5.00

6.31

5.00

10.52

5.00

12.34

5.00

20.56

5.00

29.26

5.00

40.11

5.00

53.45

5.00

88.22

5.00

1500

4.14

5.00

6.93

5.00

8.09

5.00

13.49

5.00

19.19

5.00

26.35

5.00

35.06

5.00

57.84

5.00

1650

4.71

5.00

5.52

5.00

9.20

5.00

13.11

5.00

17.99

5.00

23.93

5.00

40.75

5.00

1800

6.50

5.00

9.25

5.00

12.70

5.00

16.90

5.00

27.90

5.00

1950

4.72

5.00

6.72

5.00

9.22

5.00

12.27

5.00

20.25

5.00

2100

4.99

5.00

6.85

5.00

9.12

5.00

15.05

5.00

2400

4.01

5.00

5.34

5.00

8.82

5.00

2700

5.51

5.00

SER-RATEDEDGECONV.FACTOR

NOTREC.

0.876

0.876

0.902

0.902

0.922

0.922

0.930

0.937

0.943

0.951

NOTREC.

NOTESPANS IN SHADED AREA HAVE AMAXIMUM DEFLECTION OF 5mmFOR THE UNIFORMLYDISTRIBUTED LOADS SHOWN,WHICH IS A LIMITING DEFLECTIONFOR PEDESTRIAN COMFORT.

For Galvanised Fabricated Panels add 12% to mass shown.Design details can be found on Page 5.

U = Safe uniformly distributed load in KPa (or KN/m2)D = Deflection in mm at mid span due to U.

4.0 KPa

1055

1210

1265

1435

1616

1720

1790

2035

2226

2400

2680

2930

5.0 KPa

1010

1155

1195

1350

1440

1630

1695

1936

2100

2280

2440

2770

T Y P I C A L A P P L I C AT I O N L O A D I N G S

CONVEYOR WALKWAYSLIGHT ACCESS PLATFORMS

BRITISH STANDARDPLATFORM LOADING

4 KPa

5 KPa

STANDARD AUSTRALIANPLATFORM LOADING

2.5 KPa

BOILER HOUSE PLATFORMLOADING esp POWER STATIONS

7.5 KPa

Bold type indicates preferred item (likely to be in stock).

7W E L D L O K I N D U S T R I E S P T Y L T D W E L D L O K I N D U S T R I E S P T Y L T D


WELDLOK

SER IES 40

GRAT ING

8


This lightweight and economical grating meets the requirements

of the relevant SAA code for fixed platforms, walkways,

stairways and ladders. Ideal applications include mezzanine

floors, cat walks, conveyor walkways, etc. WELDLOK Series 40

can also be supplied in a serrated finish at no additional cost.

A 40

B 40


LOAD BARTHICKNESS

5mm

SPAN x WIDTH

6100 x 1043mm 27

27

3mm

6100 x 1045mm

NO. OF LOAD BARS

CROSS BAR PITCH

LOA

D B

AR

PITC

H

100

40

CROSS BAR PITCH

LOA

D B

AR

PITC

H

50

40


A40203

B40203

SPANS (mm)

A40205

B40205

A40253

B40253

A40255

B40255

A40323

B40323

A40325

B40325

A40403

B40403

A40405

B40405

A40455

B40455

A40505

B40505

A40555

B40555

A40655

B40655

S E R I E S 4 0

WELDLOKTYPE

A40203B40203

A40205B40205

A40253B40253

A40255B40255

A40323B40323

A40325B40325

A40403B40403

A40405B40405

A40455B40455

A40505B40505

A40555B40555

A40655B40655


2.5 KPa 7.5 KPa

1120 860

1290 975

1320 1010

1490 1150

1600 1200

1790 1375

1880 1435

2115 1620

2315 1770

2610 1920

2690 2060

3045 2720 2560 2315

WELDLOKTYPE

20x3

20x5

25x3

25x5

32x3

32x5

40x3

40x5

45x5

50x5

55x5

65x5

NOM.LOADBARSIZEmm

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

100

50

CROSSBAR

PITCHmm

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

300

76.86

0.80

127.1

0.80

119.1

0.64

198.5

0.64

195.1

0.50

325.3

0.50

305.0

0.40

508.4

0.40

643.4

0.36

794.3

0.32

961.2

0.29

1342.0

0.25

450

34.07

1.81

56.49

1.81

52.96

1.45

88.27

1.45

86.77

1.13

144.93

1.13

135.5

0.90

225.9

0.90

285.9

0.80

353.0

0.72

427.2

0.66

596.6

0.56

600

19.21

3.22

31.77

3.22

29.79

2.57

49.65

2.57

48.81

2.01

81.35

2.01

76.27

1.61

127.1

1.61

160.8

1.43

198.5

1.29

240.2

1.17

335.5

0.99

750

12.11

5.00

20.21

5.00

19.06

4.02

31.77

4.02

31.24

3.14

52.05

3.14

48.81

2.51

81.35

2.51

102.9

2.23

127.1

2.01

153.7

1.83

214.7

1.55

900

5.81

5.00

9.74

5.00

11.42

5.00

19.05

5.00

21.68

4.52

36.15

4.52

33.89

3.62

56.49

3.62

71.50

3.22

88.27

2.90

106.8

2.63

149.1

2.23

1050

5.25

5.00

6.17

5.00

10.28

5.00

12.93

5.00

21.55

5.00

24.90

4.93

41.50

4.93

52.53

4.38

64.85

3.94

78.47

3.58

109.5

3.03

1200

6.01

5.00

7.58

5.00

12.63

5.00

14.82

5.00

24.70

5.00

35.15

5.00

48.19

5.00

60.07

4.68

83.91

3.96

1350

4.73

5.00

7.89

5.00

9.24

5.00

15.41

5.00

21.93

5.00

30.07

5.00

40.08

5.00

66.16

5.00

1500

5.17

5.00

6.06

5.00

9.62

5.00

14.39

5.00

19.75

5.00

22.69

5.00

43.36

5.00

1650

4.14

5.00

6.89

5.00

9.82

5.00

13.49

5.00

17.94

5.00

29.62

5.00

1800

4.86

5.00

6.94

5.00

9.52

5.00

12.66

5.00

20.93

5.00

1950

5.04

5.00

6.90

5.00

9.20

5.00

15.18

5.00

2100

5.13

5.00

6.83

5.00

11.28

5.00

2400

4.00

5.00

6.30

5.00

2700

4.13

5.00

14.6

17.6

22.5

25.5

17.5

20.5

27.4

30.4

21.7

24.7

34.2

37.2

26.4

29.4

42.1

45.1

47.0

50.0

51.9

54.9

56.8

59.8

66.6

69.6

MASSKg/m2

SER-RATEDEDGECONV.

FACTOR

NOTREC.

0.876

0.876

0.902

0.902

0.922

0.922

0.930

0.937

0.943

0.951

NOTREC.

NOTSPANS IN SHADED AREA HAVE AMAXIMUM DEFLECTION OF 5mmFOR THE UNIFORMLYDISTRIBUTED LOADS SHOWN,WHICH IS A LIMITING DEFLECTIONFOR PEDESTRIAN COMFORT.

4.0 KPa

1000

1140

1180

1335

1420

1600

1685

1900

2070

2230

2400

5.0 KPa

945

1065

1125

1265

1340

1510

1580

1790

1950

2110

2250





BRITISH STANDARDPLATFORM LOADING

4 KPa

5 KPa

STANDARD AUSTRALIANPLATFORM LOADING

2.5 KPa


7.5 KPa




WELDLOK

SER IES 60

GRAT ING

10


Developed initially for the mining industry, our WELDLOK Series

60 grating minimises build-up of spillage materials on platform

floors. The larger openings allow most materials to fall through

providing a safer walking surface, however, this grating is very

light and has only 50% of the load carrying capacity of the

Series 30 grating.

WELDLOK Series 60 grating is not suitable for floors subject

to high impact loads.

B 60


LOAD BARTHICKNESS

5mm

SPAN x WIDTH

6100 x 1023mm 18

18

3mm

6100 x 1025mm

NO. OF LOAD BARS

CROSS BAR PITCH

LOA

DBA

RPI

TCH

50

60

750

13.04

5.00

12.30

4.02

20.50

4.02

20.15

3.14

33.59

3.14

31.49

2.51

52.46

2.51

66.40

2.23

81.98

2.01

99.22

1.83

138.6

1.55



SPANS (mm)

B60205

B60253

B60255

B60323

B60325

B60403

B60405

B60455

B60-505

B60555

B60655

S E R I E S 6 0

WELDLOKTYPE

B60205

B60253

B60255

B60323

B60325

B60403

B60405

B60455

B60505

B60555

B60655


7.5 KPa

875

895

1030

1085

1230

1285

1460

1590

1720

1845

2090

WELDLOKTYPE

20x5

25x3

25x5

32x3

32x5

40x3

40x5

45x5

50x5

55x5

65x5

NOM.LOADBARSIZEmm

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

300

81.98

0.80

76.90

0.64

128.1

0.64

125.9

0.50

209.9

0.50

196.8

0.40

328.1

0.40

415.2

0.36

512.5

0.32

620.0

0.29

866.3

0.25

450

36.45

1.81

34.18

1.45

56.96

1.45

55.99

1.13

93.31

1.13

87.45

0.90

145.8

0.90

184.5

0.80

227.8

0.72

275.6

0.66

385.0

0.56

600

20.50

3.22

19.22

2.57

32.04

2.57

31.49

2.01

52.46

2.01

49.22

1.61

81.98

1.61

103.8

1.43

128.1

1.29

155.0

1.17

216.5

0.99

900

6.29

5.00

7.37

5.00

12.29

5.00

13.99

4.52

23.33

4.52

21.87

3.62

36.45

3.62

46.12

3.22

56.96

2.90

68.92

2.63

96.26

2.23

1050

3.97

5.00

6.63

5.00

8.34

5.00

13.91

5.00

16.06

4.93

26.78

4.93

33.89

4.38

41.85

3.94

50.62

3.58

70.71

3.03

1200

4.89

5.00

8.16

5.00

9.54

5.00

15.91

5.00

22.68

5.00

31.10

5.00

38.77

4.68

54.11

3.96

1350

5.09

5.00

5.97

5.00

9.95

5.00

14.16

5.00

19.41

5.00

25.86

5.00

42.69

5.00

1500

6.52

5.00

9.28

5.00

12.75

5.00

16.96

5.00

27.99

5.00

1650

4.45

5.00

6.34

5.00

8.70

5.00

11.58

5.00

19.72

5.00

1800

4.47

5.00

6.14

5.00

8.17

5.00

13.50

5.00

1950

4.46

5.00

5.93

5.00

9.80

5.00

2100

4.41

5.00

7.28

5.00

2400

4.26

5.00

2700

MASSkg/m2

19.0

15.7

22.3

18.5

27.0

21.7

32.3

35.7

39.0

42.4

49.0

50

50

CROSSBAR

PITCHmm

50

50

50

50

50

50

50

50

50

SER-RATEDEDGECONV.

FACTOR

NOTREC

.

0.876

0.876

0.902

0.902

0.922

0.922

0.930

0.937

0.943

0.951

5.0 KPa

965

1005

1140

1195

1355

1420

1615

1760

1900

2040

2330

4.0 KPa

1020

1050

1195

1275

1445

1495

1700

1860

2010

2130

2445

2.5 KPa

1140

1185

1375

1420

1640

1700

1925

2070

2220

2420

2745



BRITISH STANDARDPEDESTRIAN PLATFORM LOADING

4 KPa

5 KPa

STANDARD AUSTRALIANPEDESTRIAN PLATFORM LOADING

2.5 KPa


7.5 KPa






WELDLOK

STAIR

TREADS

12

T1 Welded fixing No nosing T2 Bolted fixing No nosing

T3 Welded fixing Floor plate nosing

T4 Bolted fixing Floor plate nosing

T5 Welded fixing Abrasive nosing

T6 Bolted fixing Abrasive nosing

T7 Welded fixing Perforated nosing

T8 Bolted fixing Perforated nosing

R E C O M M E N D E D M A X . L E N G T H S

LOAD BAR SIZE

SERIES 30

SERIES 40

SERIES 60

25 x 5 32 x 5 40 x 5

900

750

500

1300

1200

800

1600

1500

1300

When ordering treads nominate type of grating required. Example T3 750 x 275 (Made from A30 325 Grating)

STAIR TREADS

WELDLOK stair treads can be supplied in Forgebar Series 30, 40,

60 and Diamond Grating. The treads shown here are purely

illustrative. Overall tread length can be made to any dimension.

We suggest though that tread width be selected from the table

showing recommended widths.

Stair treads wear at a greater rate than the actual flooring and

are more inclined to become bowed because of continual and

concentrated impact. Whatever the depth of the main flooring,

we recommend that stair treads should never have less than a

25 x 5 Load Bar size.

Nosing Bars should preferably be specified. When walking down

a grating stairway having treads without Nosing Bars, the pattern

of the grating tends to merge so that the edges of the tread

become ill defined, possibly causing over and under stepping.

The Nosing Bar also stiffens the front edge of the tread, further

resisting deflection caused by impact loads.

R E C O M M E N D E D W I D T H S

TREADSTYPE

T1 & T2

TREADSTYPE

T3 TO T8

END PLATEHOLE CENTRE

SERIES 30

SERIES 40

SERIES 60

SERIES 30

SERIES 40

SERIES 60

125

125

115

45

125 155

165

155

155

155

75

185

185

185

75

215

205

215

195

215

100

245

245

245

245

235

100

275

285

275

275

275

125

305

325

305

305

315

125

RECOMMENDED WIDTH

FRO

NT

50

25 A

NOTE: SPECIAL END PLATE HOLE CENTRES AVAILABLE ON REQUEST

END PLATE65 x 5 FLATWITH14 DIAM.HOLES

S TA N D A R D E N D P L AT E S F O R B O LT E D T R E A D S

A

B O LT E D C O N N E C T I O N S

13

REPLACEABLE NON-SLIP STAIR TREAD NOSING

This Nosing Bar is a new concept in abrasive non-slip replaceable

stair tread nosing. It is extremely hard wearing and has excellent

anti-slip properties even when soiled or wet. As a result of its

safety features, this stair tread nosing is now being used on

offshore production platforms and in the mining industry. Tread

size dimensions are identical to Type T1 and T2 shown on the

previous page. Non-slip stair tread Nosing Bars can be supplied

loose for attachment to existing badly worn treads and are

available in any of the following length and width combinations.

Widths: 50

Lengths: 580, 730, 880, 1030, 1180

Types: T1-R Weld in type

T2-R Bolt in type (illustrated)

WELDLOK SAFE 'T' GRATING

For those elevated platform areas that require additional safety,

WELDLOK SAFE T GRATING offers the perfect solution.

Tools and small objects are unable to fall through.

Full foot support, non slip surface.

Ideal surface for mezzanine floors, and for use with wheeled

trolleys when combined with Series 30 and 40 gratings.

Unlike conventional gratings with Safety Mesh under, rubbish

does not collect between Load Bars.

Where required, Safety Mesh can be fitted to the underside.

Specify by selecting suitable grating from load tables shown on

Pages 7, 9 and 11.

Ordering example (WELDLOK A40325 SAFE T GRATING).

WELDLOK GRIDPLATE

For those installations that require a solid surface of floor plate

with maximum spanning ability combined with minimum

weight, WELDLOK Gridplate is an economical and superior

alternative to traditional floor plate systems.

This product is ideal for applications which are subject to high

impact loads, and can be manufactured from any of the

WELDLOK range of Forgebar gratings.

W E L D L O K I N D U S T R I E S P T Y L T D

WELDLOK

ANCILLARY

ITEMS


W E L D L O K I N D U S T R I E S P T Y L T D W E L D L O K I N D U S T R I E S P T Y L T D14

WELDLOK

FASTEN ING

METHODS

FASTENING METHODS

The most positive fixing method and by far the most economical

is on-site welding of the grating to support steelwork. Where

panels are to be removable or where surface treatment of the

grating may be damaged, WELDLOK fixing clips are recommended.

These can be installed and made secure by personnel working

from the top of the grating. WELDLOK fixing clips come in a

standard galvanised finish. A minimum of 4 clips should be used

per panel, on larger panels use extra clips at mid-span.

ILLUSTRATIONS 1, 2 AND 3

Illustrations 1, 2 and 3 are suitable for WELDLOK Series 30, 40

and 60 gratings respectively, comprising a double saddle clip

(suitable for the appropriate series). An 8mm diameter cheese

head screw and bottom clamping bracket.

ILLUSTRATION 4

Both the WELDLOK Series 30 and Series 40 clips shown in 1 and

2 are suitable for use to secure two adjacent panels.

ILLUSTRATION 5

Double saddle clip used with self drilling or thread cutting

screws. Can also be used in locations where there is no open

flange on the supporting steelwork to clamp to.

IMPORTANT

To reduce the risk of accidents WELDLOK recommends that if

panels are used on site as a means of temporary access during

erection, that they be lightly tack-welded to the support

steelwork. Due to constant traffic, unfixed panels have a

tendency to move or drift imperceptibly away from the

supporting flange with the potential for the next person to tip the

panel. When an area of panels is in its correct position it should

be fixed immediately, by one of the recommended methods.

SERIES 30

SERIES 40

SERIES 60

1

2

3

4

5


WELDLOK

HEAVY DUTY

GRAT ING

16

NOTE

All WELDLOK heavy duty gratings have every Load Bar welded to

the Edge Bars. Gratings subject to continuous heavy traffic

should be fastened in place.

TYPE A30 FORGEBAR GRATING

W E

LARGE CARWHEEL LOAD 495kg

130 x 130 TYRECONTACT AREA

LOADING DATA

DIRECTION OF TRAVELSAME AS LOAD BAR

DIRECTION

OUR SALES DEPARTMENT IS RE

LOADBARSIZE

25 x 5

32 x 5

40 x 5

45 x 5

50 x 5

55 x 5

65 x 5

75 x 6

90 x 6

100 x 6

110 x 6

130 x 6

A30255

GRATINGTYPE

A30325

A30405

A30455

A30505

A30555

A30655

CD756

CD906

CD1006

CD1106

CD1306

320

485

725

900

1095

1310

1700

2340

2800

3120

3430

4050

130

130

C L OF AXLE

1. VEHICLES ASSUMED TO BE FULLY LADEN.2. IMPACT FACTOR OF 30% ALLOWED.3. SPANS SHOWN ARE EFFECTIVE SPANS.4. ALL VEHICLES TRAVELLING PARALLEL TO SPAN OF GRATING.5. FOR APPLICATIONS WITH SUSTAINED HEAVY TRAFFIC WHEEL LOADS PERPENDICULAR TO SPAN USE WELDLOK CLOSE DIAMOND MESH WHICH HAS FAR BETTER LATERAL RESTRAINT THAN THE FORGEBAR TYPE.

TYPE CD CLOSE DIAMOND GRATING

CLEAR SPAN

CLEAR SPAN


E L D L O K H E AV Y D U T Y S T E E L G R AT I N G S

GRATING MAXIMUM CLEAR SPANS (mm) FOR THE FOLLOWING VEHICLES

2 TONNE FORKLIFTWHEEL LOAD 1865kg


5 TONNE FORKLIFTWHEEL LOAD 4450kg


5 TONNE TRUCKWHEEL LOAD 1690kg


AXLE LOAD9.8 TONNES

DUAL WHEEL EACH AXLE ENDWHEEL LOAD 2450kg


AXLE LOAD14.3 TONNES

DUAL WHEEL EACH AXLE ENDWHEEL LOAD 3580kg



DIRECTION


DIRECTION


DIRECTION


DIRECTION


DIRECTION

EADY TO ASSIST YOU IN THE SELECTION OF THE APPROPRIATE GRATING FOR YOUR APPLICATION

TYRE CONTACT AREA

180

285

330

380

435

555

755

1025

1220

1435

1905

180

245

290

340

400

530

890

1230

1480

1750

2355

285

315

395

515

680

800

935

1230

220

305

365

435

510

685

1130

1570

1895

2245

2840

180

285

335

390

450

590

930

1275

1530

1805

2420

C L

200

250

OF AXLEC L

200

200

OF AXLE

170

170

C L OF AXLE

140

130

C L OF AXLE

250

180

C L OF AXLE


WELDLOK

DIAMOND

GRAT ING

18

DIAMOND GRATING

Although one of the earliest patterns made by most grating

companies, WELDLOK Diamond Grating still has applications in

the industry where it is more appropriate than forgebar grating.

Coupled with a fully serrated top surface it provides excellent

anti-slip properties in all directions.

HEAVY WHEEL LOADS

WELDLOK Heavy Close Diamond Grating Type CD is the ideal

product for this application. The formed spacer bars can be

varied in size to suit the Load Bar depth, providing maximum

lateral restraint for the Load Bars.

Refer to Pages 16 and 17 for loading data.

D I A M O N D T Y P E D

TYPE LOAD BARSIZE

WEIGHTkg/m2

SPACER BARSIZE

20 x 533.19D-205 20 x 3

25 x 328.57D-253 20 x 3

25 x 538.33D-255 20 x 3

32 x 333.11D-323 20 x 3

D-325 45.63 32 x 5 20 x 3

D-403 38.50 40 x 3 20 x 3

D-405 54.27 40 x 5 20 x 3

D-455 59.68 45 x 5 20 x 3

D-505 64.81 50 x 5 20 x 3

D-555 70.22 55 x 5 20 x 3

D-655 80.75 65 x 5 20 x 3

20 x 325.17D-203 20 x 3

C L O S E D I A M O N D T Y P E C D

TYPE LOAD BARSIZEWEIGHTkg/m2

SPACER BARSIZE

32 x 475 x 6118.35CD-756

32 x 490 x 6136.76CD-906

32 x 4100 x 6148.65CD-1006

40 x 4110 x 6164.40CD-1106

40 x 4130 x 6213.36CD-1306

ABOVE: WELDLOK Close Diamond Grating Type CD can

also be supplied with Load Bar sizes similar to that shown for

standard Diamond Grating Type D.

LEFT: As the load carrying capacity of WELDLOK Diamond

Type D is similar to the Forgebar Series 40 gratings, use the

tables shown on Page 9.

PLAIN

DIAMOND TYPE 'D' DIAMOND TYPE 'D'CLOSE

DIAMOND TYPE 'D'

SERRATED PLAIN

200

OPE

NIN

G38

200

OPE

NIN

G38

180

OPE

NIN

G32


WELDLOK

DRAINAGE

PRODUCTS

WELDLOK DRAINAGE GRATING PRODUCTS

WELDLOK manufacture a comprehensive range of drainage

grating products to suit a multitude of applications.

Gully grates

Gully grates complete with base and lintel

Hinged pit covers

Surcharge pit covers

Dished Grates

Full range of trench grates and frames

Weep holes

Step irons

WELDLOK is the recognised market leader in fabricated drainage

grating design. Our products are widely used by Councils

throughout NSW and are growing in popularity in other states

throughout Australia. WELDLOK has been instrumental in

influencing Councils to change from cast iron gully grates to

WELDLOKs modern design, which features hinged anti-theft

covers, with greater open area to facilitate better drainage flow.

Lighter in weight for easier handling, WELDLOK Drainage

gratings have a hot dipped galvanised finish, all at highly

competitive prices.

WANT TO KNOW MORE?

Ask for our WELDLOK drainage grating product brochure.

GULLY GRATECOMPLETE WITHBASE AND LINTEL

TRENCH GRATEAND FRAME

HINGED DISH GRATE HINGED PIT COVER

WELDLOK LIVESTOCK GRATING SERIES 20

Livestock grating is a forge-welded mild steel flooring system for

abattoirs, slaughter houses, woolsheds, piggeries, cowsheds,

calfpens and stock crates.

It is used extensively overseas, particularly in New Zealand, in areas

where hygiene is of the utmost importance. The grating is an

economical, fast fitting system, and can span up to 1.5 metres

between supports. This creates significant savings on supporting

steelwork or timbers, thus making it ideal for elevated flooring.

Weldlok Livestock Grating has an 80% open area which allows

quick and easy cleaning of the grating and the floor under the

grating. The rigidity of the steel grating allows for the direct

bolting of posts and fences, therefore allowing the simple

movement of fence lines.

Standard mats 6.2 metres by 1.063 metres are available ex stock,

with custom panels available on request. Hot dip galvanised or

untreated are the finishes available.

20W E L D L O K I N D U S T R I E S P T Y L T D

WELDLOK

L IVESTOCK

GRAT ING


C LSUPPORT C LSUPPORTC LSUPPORTC LSUPPORTC LSUPPORT

10mmNOMGAP

50 OVERLAP

4282

60753050 PANEL SIZE

300015001500

1063

1063SPAN DIRECTION

L I V E S T O C K G R AT I N G S E R I E S 2 0 S A F E L O A D A N D D E F L E C T I O N TA B L E

SPANS (mm)

300

150.8

0.56

600

37.5

2.23

750

23.9

3.5

900

16.5

5.01

1050

12.06

6.83

1200

9.16

8.92

450

66.88

1.25

U

D

LOADCRITERIA 1500

5.76

13.94

1350

7.18

12.30A20 203

WELDLOKTYPE

100

CROSSBAR

PITCH(mm)

26.4

MASSkg /m2

20 x 3

LOADBAR SIZE

(mm)

EXAMPLE FLOOR PLANNOTE: 3050mm long panels should be fingerjointed and overlap 50mmbased on 1500mm centre to centre dimensions for the support members. THIS PRODUCT IS APPROVED BY DEPARTMENT OF PRIMARY INDUSTRY

Deflections are based on spanning panels over three supports and welding grating panels to supports.

R E C O M M E N D E D S U P P O R T S PA N S

CLEAR OPENING94

17

CLEAROPENING

LIVESTOCK

SHEEP

GOATS

PIGS

CATTLE

SPANS (mm)

1500

1500

1200

1000

A 20

SPAN DIRECTION TWISTED SQUARE BARAT TOP OF GRATING

50 mm OVERLAP

AT SUPPORTSSPAN

SPAN

SPAN DIRECTIONIS 90 TO DIRECTIONOF SUPPORTS

GRATING PANELS SHOULD BE WELDED TO SUPPORTS

(DISTANCE BETWEEN SUPPORTS)

21

STEEL ARMOUR FLOOR TILES

WELDLOK Steel Armour Floor Tiles offer an economical, efficient

means of reinforcing concrete floors that are subject to heavy

traffic and/or high impact. WELDLOK Steel Armour Floor Tiles

are well suited to heavy fork lift areas, warehouses, factories and

manufacturing facilities, docks and freight stations.

As well as protecting whole concrete

floors, broken or damaged concrete

floors can be simply repaired by the

installation of WELDLOK Steel

Armour Floor Tiles.

APPLICATIONS

Strengthen and protect

concrete floors

Prevent high impact damage

Restore broken concrete floor

Prevent heavy traffic damage

Economical, long wearing, safe

DESCRIPTION

Each WELDLOK Steel Armour Floor

Tile measures 250 x 250mm

(16 tiles = 1m2) and is constructed of

2.5mm steel plate (wt = 22kg/m2)

WELDLOK Steel Armour Floor Tiles are available either untreated or

galvanised. The 16 tangs bond each WELDLOK Steel Armour Floor

Tile to the concrete floor, distributing weight evenly and shielding

the concrete from damaging impact and stresses. The concrete

subfloor should be designed to carry the anticipated loads

without taking into account the concrete used to bed the tiles.

INSTALLATION

Tiles should be bedded in a

compactable, plastic concrete base

that should be at least 40mm thick.

The mix for this base should be:

1 part cement

2 parts fine sand

1.5 parts gravel

(10mm sieve size maximum)

WELDLOK Steel Armour Floor Tiles

should be laid in small, workable

sections of approximately 1m2 on a

base that has been screed off to the

correct floor level and fall. Tap tiles

with a hammer, taking care to align

all tile junctions. Concrete extruded

through the tang holes should be

cleared away before it dries.


WELDLOK

STEEL ARMOUR

FLOOR T I LES


TOPSIDE UNDERSIDECOMPACTABLE, PLASTIC CONCRETE BASE,40mm THICK CONCRETE SUB FLOOR

INSTALLAT ION D IAGRAM


WELDLOK INTERLOCK

ALUMINIUM GRATING

INTERLOCK ALUMINIUM GRATING, available in

either Series L30 or L40, is outstanding for

applications where the following criteria are required:

1. Low maintenance costs

2. Corrosion resistant to most chemicals

3. Non-sparking

4. Light weight with high structural strength

5. 80% open area for maximum light and ventilation.

These features make INTERLOCK ALUMINIUM GRATING ideal for

use in sewage treatment plants, oil refineries, munitions factories,

ship loader boom walkways, transport tankers and sunscreens.

WELDLOK ALUMINIUM

GRIDPLATE

ALUMINIUM GRIDPLATE combines

3mm thick heavy-pattern aluminium floor plate

permanently welded to INTERLOCK GRATING. This

combination provides a light strong floor that can resist high

impact loads, and can be manufactured from any of the range

of INTERLOCK GRATING.

INTERLOCK ALUMINIUM STAIR TREADS

INTERLOCK ALUMINIUM STAIR TREADS can be supplied in Series

L30 and L40. The stair treads shown here are purely illustrative.

Although overall tread length can be made to any dimension,

we suggest that tread width be selected from the table of

recommended widths on page 12. INTERLOCK ALUMINIUM

STAIR TREADS are also available in types T1 to T6 inclusive as

shown on page 12.

Serrations are also available on Interlock Gratings, however the

recommended minimum depth for serrated panels is 25mm.

When selecting the grating type go up one grade in depth to

compensate for the reduced load carrying capacity.

T2 Bolted fixing No nosing

T4 Bolted fixing Floor plate nosing

L30

CROSS BAR PITCH114

30 LOA

D B

AR

PITC

H

L40

CROSS BAR PITCH114

40 LOA

D B

AR

PITC

H

S TA I R T R E A D S

RECOMMENDED MAXIMUM LENGTHS (mm)

Load Bar Size 32 x 5

900

40 x 5

1100

25 x 5

750

S TA N D A R D PA N E L S I Z E S

LOAD BARTHICKNESS

5mm

SERIES L30

993mm3mm

995mm

SERIES L40

1003mm

1005mm

WELDLOK

INTERLOCK

ALUMIN IUM

GRAT ING


A L U M I N I U M S E R I E S L 3 0 G R AT I N G S A F E L O A D A N D D E F L E C T I O N TA B L E S

L30203

SPANS (mm)

L30205

L30253

L30255

L30323

L30325

L30403

L30405

L30455

L30505

L30555

L30655

WELDLOKTYPE

20x3

20x5

25x3

25x5

32x3

32x5

40x3

40x5

45x5

50x5

55x5

65x5

NOM.LOADBARSIZEmm

6.8

10.48

8.18

12.77

10.11

15.98

12.31

19.65

21.95

24.24

26.54

31.13

MASSkg/m2

114

114

CROSSBAR

PITCHmm

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

300

89.59

1.55

115.99

1.55

108.76

1.24

181.27

1.24

178.22

0.97

297.04

0.97

278.50

0.78

464.18

0.78

587.51

0.68

725.35

0.62

877.70

0.56

1225.90

0.48

450

30.88

3.48

51.48

3.48

49.29

2.79

80.50

2.79

79.15

2.18

131.93

2.18

123.71

1.74

206.20

1.74

261.01

1.55

322.24

1.40

389.94

1.27

544.69

1.07

600

14.10

5.00

23.39

5.00

27.13

4.95

45.22

4.95

44.48

3.87

74.14

3.87

69.54

3.10

115.90

3.10

148.72

2.75

181.18

2.48

219.23

2.25

306.25

1.91

750

5.74

5.00

9.58

5.00

11.22

5.00

18.71

5.00

23.53

5.00

39.23

5.00

44.46

4.84

74.11

4.84

93.82

4.30

115.86

3.87

140.21

3.52

195.80

2.98

900

4.62

5.00

5.41

5.00

9.02

5.00

11.35

5.00

18.48

5.00

22.18

5.00

35.92

5.00

52.57

5.00

72.15

5.00

96.32

5.00

135.94

4.92

1050

4.87

5.00

6.13

5.00

10.21

5.00

11.97

5.00

19.95

5.00

28.39

5.00

38.96

5.00

51.82

5.00

85.59

5.00

1200

5.99

5.00

7.01

5.00

11.69

5.00

17.55

5.00

22.82

5.00

30.40

5.00

50.15

5.00

1350

5.01

5.00

4.38

5.00

7.29

5.00

9.67

5.00

15.46

5.00

18.93

5.00

31.31

5.00

1500

4.79

5.00

6.82

5.00

9.35

5.00

12.45

5.00

20.54

5.00

1650

4.61

5.00

6.96

5.00

8.50

5.00

13.52

5.00

1800

4.51

5.00

6.01

5.00

9.91

5.00

1950

4.42

5.00

7.18

5.00

2100

5.34

5.00



Calculations based on a minimum yield stress of 172 MPaLoads calculated in accordance with an allowable bending stress of 116 MPa.

Load Bars Aluminium 6063-T6Twisted cross bars Aluminium 6063-T5

Standard welding procedure is a 4mm fillet weld,25mm long to every 2nd load bar.

150

278.56

0.39

484.27

0.39

435.27

0.31

725.46

0.31

713.16

0.24

1188.60

0.24

1114.40

0.19

1887.30

0.19

2350.70

0.17

2902.10

0.16

3511.50

0.14

4904.60

0.12

A L U M I N I U M S E R I E S L 4 0 G R AT I N G S A F E L O A D A N D D E F L E C T I O N TA B L E S

L40203

SPANS (mm)

L40205

L40253

L40255

L40323

L40325

L40403

L40405

L40455

L40505

L40555

L40655

WELDLOKTYPE

20x3

20x5

25x3

25x5

32x3

32x5

40x3

40x5

45x5

50x5

55x5

65x5

NOM.LOADBARSIZEmm

5.51

8.32

6.56

10.07

8.04

12.53

9.72

15.34

17.09

18.85

20.6

24.11

MASSkg/m2

114

114

CROSSBAR

PITCHmm

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D

U

D


150

213.1

0.39

355.1

0.39

332.85

0.31

564.75

0.31

545.37

0.24

908.98

0.24

852.17

0.19

1420.3

0.19

1797.6

0.17

2219.25

0.16

2685.3

0.14

3760.6

0.12

300

53.21

1.55

88.7

1.55

83.15

1.24

138.82

1.24

135.28

0.97

227.15

0.97

212.97

0.78

354.96

0.78

449.27

0.69

554.67

0.62

671.18

0.56

937.48

0.48

450

23.62

3.48

39.38

3.48

36.93

2.79

81.55

2.79

60.53

2.18

100.89

2.18

94.6

1.74

157.68

1.74

199.58

1.55

246.42

1.40

298.19

1.27

416.52

1.07

600

10.72

5.00

17.89

5.00

20.74

4.95

34.58

4.95

34.01

3.87

56.69

3.87

53.17

3.10

88.63

3.10

112.19

2.75

138.53

2.48

167.84

2.25

234.19

1.91

750

4.3

5.00

7.32

5.00

8.58

5.00

14.31

5.00

17.99

5.00

27.02

5.00

34.00

4.83

58.67

4.83

71.74

4.30

88.59

3.87

107.22

3.52

149.8

2.98

900

4.13

5.00

6.89

5.00

8.68

5.00

14.47

5.00

16.94

5.00

28.28

5.00

40.39

5.00

55.27

5.00

73.51

5.00

103.95

4.29

1800

4.61

5.00

7.58

5.00

1650

4.89

5.00

7.37

5.00

10.59

5.00

1500

5.21

5.00

7.15

5.00

10.3

5.00

15.68

5.00

1350

5.58

5.00

7.93

5.00

10.9

5.00

14.61

5.00

23.94

5.00

1200

4.57

5.00

5.36

5.00

8.93

5.00

12.72

5.00

17.45

5.00

23.26

5.00

38.35

5.00

1050

4.68

5.00

7.8

5.00

9.15

5.00

15.26

5.00

22.90

5.00

29.79

5.00

39.76

5.00

65.44

5.00

114

114

114

114

114

114

114

114

114

114

114

114

114

114

114

114

114

114

114

114

WELDLOK BALLTUBE HANDRAILING

To compliment our extensive range of grating products, the

WELDLOK BALLTUBE Handrail System is a modern,

easy to erect and economical modular

system. A full range of

stanchions and

bends are

available together

with rails and kick

plates. WELDLOK

precision servicing

gives you the added

advantage of modern

physical resources,

equipment, facilities,

quality control systems

and techniques, (including

a modern galvanising plant)

all under one roof. These

resources are backed by our

team of experienced personnel,

ensuring immediate attention,

speedy co-ordinated follow through and quick delivery service.

WANT MORE INFORMATION?

Ask for our WELDLOK BALLTUBE

Handrail Brochure.

Shown above.


WELDLOK

BALLTUBE

HANDRAIL ING

HOT DIP GALVANISING

WELDLOKS Yagoona plant is the only grating manufacturer in

Australia with its own galvanising facility under the same roof.

The galvanising plant operates 24 hours a day, allowing us to

give our clients extremely fast turn-around times. Gratings can

be manufactured and put into the galvanising plant at 4pm and

be ready for dispatch 7am the next morning.

The plant is run by our sister company, GALVANISING SERVICES,

which has grown into one of the largest suppliers of jobbing

galvanising in Australia.

We are equipped to handle a wide range of fabricated steel

products due to the flexibility provided by the large bath size of

10.3m x 1.85m x 2.2m deep.

All galvanising meets the requirements of AS/NZS:4680:1999.

GALVANISING SERVICES PTY LTD. has another branch at Coffs

Harbour. For further details see back cover.

Your enquiries on any galvanising requirements would be

welcomed.

25

GALVANIS ING

SERV ICES


C O AT I N G M A S S R E Q U I R E M E N T S

PRODUCT

STEEL GREATER THAN 5mm THICK

MINIMUM AVERAGE COATING

THICKNESS(microns)

COATING MASS(g/m2)

STEEL BETWEEN 2mm 5mm THICK

STEEL LESS THAN 2mm THICK

600

450

350

84

49

64

26

WELDLOK

ORDER ING

INFORMATION


Area will always be supplied in standard panel widths of particular grating,plus a make up panel on the end with the width taken to the nearest LoadBar to match overall dimension required.

WHAT YOU RECEIVE

IMPORTANTPLEASE CHECK DIRECTION OF LOAD BARS (SPAN) WHEN

ORDERING GRATING PANELS. IF THE INFORMATION SUPPLIEDTO WELDLOK IS NOT CORRECT, THE GRATING PANELS WILLBE USELESS. THIS COULD BE A COSTLY MISTAKE FOR YOU.

R I G HT

W R ON G

PANEL WILL COLLAPSE UNDER LOAD DUETO LACK OF SUPPORT AT

BOTH ENDS OF LOAD BARS.

LENGTH (i.e. SPAN)

LOAD BEARING BARS

WID

TH

1055 1055 1055 1055 1055 605

2000

LB

SPA

N

6 6 6 6 6

5910

ORDERING INFORMATION

1. Nominate type of grating required from this brochure.

2. Plain or serrated Load Bars.

3. Panels to be edged or unedged (if non-standard Edge Barwelding required, this must be noted). See page 28 forstandard.

4. Nominate number of panels required together with lengthand width dimensions,Load Bar direction (span) to be stated.

5. Where large floor areas are required, provide drawingshowing outline of grating with:a) grating typeb) load bar directionc) locations and sections of support steeld) position of all cut-outs and removable arease) location of all nosing bars, kick plates and splices of

penetrations.

6. Specify surface treatment required:a) untreatedb) galvanisedc) black bitumen.

7. Advise if safety mesh required.

8. For stair treads, nominate type required as well as dimensions,quantity and surface treatment.See page 12 for specifics.

9. Advise type of fixing clips required.

10.Nominate delivery date and delivery point.

EXAMPLE OF ORDERING

WELDLOK A30-325 grating, edged, galvanised complete withfixing clips.

Size 2000 LB span x 5910.

1500

4500 4500

2250 1350 1800

900

150015001500150015001500

200 200

400

1000

130 x 6 KP 180180

200

4500

1800 1

125

1350

250U

B31

250U

B31

1150

x 7

5 PF

C (

TYP.

)

250U

B31

1350

150

90

450

500

300

150

150

CHEQUER PLATENOSING

[][ ]

[

2113

23

24

25

18

18

19

14

14

15

10

10

10

11

129

5

6

7

8

4

2

2

2

3

1

17

16 20

26

27

SAVE ON DRAFTING DETAILING COSTS

When supplying WELDLOK with a grating drawing, show only

the outline of grating to be supplied together with cut-outs

around equipment, steelwork, location

of supporting steelwork and sections

required in the project.

DO NOT DETAIL UP PANELS.

WELDLOK will provide the most

economical split up of panels to suit

your floor layout. As grating

manufacturers use different types of

Forgewelding machines, each will

have different standard panel widths.

Your draftsperson need not produce

fully detailed panel drawings for large

areas which might be using another grating manufacturers

standard widths and would therefore be useless to us. Save

yourself the cost, let us do it for you.

WELDLOK use state of the art CAD

technology to create panel details

and erection marking plans.

This information is printed in either

laser quality A3 or A4 sheets, or

plotted on sheets of up to A1 size.

Laser prints A4 size can be sent by

fax anywhere in the world. Our

clients appreciate this service

especially when their site managers

need erection information quickly.


WELDLOK

DRAFT ING

INFORMATION


WELDLOK INDUSTRIES DIVISIONGRAHAM GROUP

CLIENTPROJECT

O/NJOB NO.

PANEL MATERIALLIST

WHAT WE NEED FROM YOU

WHAT YOU GET FROM US


WELDLOK MANUFACTUR ING TOLERANCES

STA IR TREAD TOLERANCES

ALL DIMENSIONS ARE MAXIMUM PERMISSIBLE TOLERANCES

END FLAT LEAN

Fabrication:- Edge Bars and end plates welded on side ofevery Load Bar with a minimum 3mm fillet weld.

NOTE: Length of tread is distancebetween outer faces of the End Flats.

STANDARD FABRICATION WELDING

Edge Bars and attachments are welded with a minimum 3mm fillet weld to one side of:Every 5th Load Bar on Series 30 GratingEvery 4th Load Bar on Series 40 GratingEvery 3rd Load Bar on Series 60 Grating

OPTIONAL

1. Full Weld. Weld oneside of every Load Bar.2. Seal Weld. Weld bothsides of every Load Bar.

OVERALL DIMENSIONS

AND SQUARENESS

CROSS BAR LOCATION

LOAD BAR LEAN

LONGITUDINAL BOW

CROSS BAR ALIGNMENT SPACING

TRANSVERSE BOW(before fastening to supports)

D and D1 are overall diagonal dimensionsW and W1 are overall dimensions across the Load Bars at opposite end of panel

5mm thickEdge Bars

supplied asstandard

Panel CL

6mm c-c end Cross Bars in 1.50m length

1/200 of length Load Bars

1.5mm

10mm

5mm

1mm

Cross Bars

Load Bars

Load Bars

1mm per 100mm of width

1mm per 100mm of width

W1 = W 6mm

D1=

D

6mm

Load

Bar

Len

gth

6m

m

D

WIDTH (W) 6mm

c.c 0.8mm3mm 3mm

(Cross BarProjection)

25mm

1mm

WID

TH

3mm

LENGTH +0mm -3mm

WELDLOK INSTALLAT ION TOLERANCES


ALL DIMENSIONS ARE MAXIMUM PERMISSIBLE TOLERANCES

PANEL LENGTH

PANELWIDTH

PANELWIDTH

10mm NOMINAL

10mm NOMINAL

10mm 10mm10mm10mm

15mm

10mm 10mm

10mm NOMINAL

25mm BEARINGMINIMUM (TYPICAL)

MIN.CLEARANCEEQUAL TOREBATE ANGLETHICKNESS

NOTE:CLEARANCE CANVARY RELATIVE TOREBATE ANGLESTRAIGHTNESS

LOAD BAR(TYPICAL)

LOAD BAR(TYPICAL)

10m

mN

OM

INA

L

PANEL LENGTH

CUT-OUTS AROUND PIPES AND CIRCULAR DUCTS TO HAVEMINIMUM CLEARANCE OF 25mm ALL ROUND

ACTUAL CUT-OUT TAKENTO NEAREST LOAD BAR


WELDLOK

GRAT ING

TERMINOLOGY

LOAD BEARING BARA load carrying member spanningbetween supports.

CROSS BARA member fixed at right angles to the LoadBearing Bars to provide lateral restraint.

LENGTH (DIRECTION OF SPAN)The overall dimension of a panel parallel withLoad Bearing Bars.

NOSING BARA member attached to front edge of stair treador top stair landing panel.

WIDTHThe overall dimension of a panel measured atright angles to the Load Bearing Bars.

NETT AREAThe area of flooring remaining after deductingareas cut to waste. ([A x B] - [C x D])

KICK PLATEA large flat bar welded to side of panel or ends and around cut-outs wherever specifiedon drawings.Nominally 100mm above walking surface.

EDGE BAREdge bars are non-Load Bearing Bars, runningright angles to the load bearing members.

SERRATIONSNotches formed in the top of Load BearingBars to improve skid resistance.

CUT-OUTSArea of flooring removed to clear aroundcolumns, pipes, machines etc.

GROSS AREATotal area of flooring including areas cut towaste. (A X B)

SPAN

CRS OF SUP

PORTS

LENGTH (SPA

N)WIDTH

A

BC

D

A

B

INDUSTR IES PTY LTD

ABN 58 000 175 379

A DIVISION OF GRAHAM GROUP

NEW SOUTH WALES

WELDLOK INDUSTRIES P/L

117153 ROOKWOOD ROAD

YAGOONA NSW 2199

TELEPHONE (02) 9709 3777

FACSIMILE (02) 9790 1013

EMAIL: [email protected]

QUEENSLAND


UNIT 14, 357 GYMPIE ROAD

STRATHPINE QLD 4500

TELEPHONE (07) 3889 8500

FACSIMILE (07) 3889 8600


WESTERN AUSTRALIA


98 CAMPBELL STREET

BELMONT WA 6104

TELEPHONE (08) 9478 1266

FACSIMILE (08) 9277 7742


VICTORIA


9 SECOND AVENUE

SUNSHINE VIC 3020

TELEPHONE (03) 9311 0122

FACSIMILE (03) 9311 0133


G A L V A N I S I N G S E R V I C E S P T Y L T D

SYDNEY

GALVANISING SERVICES P/L

ABN 11 000 296 631

117153 ROOKWOOD ROAD

YAGOONA NSW 2199

TELEPHONE (02) 9709 3777

FACSIMILE (02) 9707 4180

COFFS HARBOUR

GALVANISING SERVICES (COFFS HARBOUR) P/L

ABN 49 001 720 387

4547 WINGARA DRIVE

COFFS HARBOUR NSW 2450

TELEPHONE (02) 6652 4100

FACSIMILE (02) 6652 2285

www.grahamgroup.com.au

AUTHORISED DISTRIBUTOR

Weldlok are totally committed to continual improvements in our products and we reserve the right to change details and designs without notice.WGB FD07/01

B A L L T U B E

THE GRAHAM GROUP A WHOLLY AUSTRALIAN OWNED COMPANY

W

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weldlok grating manual

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