product information...cross conveyor * lift rollers chain infeed conveyor * * optional runner...

PI Lift Roller Sizer ENDate: 03/11/17

Revision: B

Consult | Design | Manufacture | Install | Support

Product InformationLift Roller Sizer

Sizing Equipment

General InformationProduct OverviewWhat does a Lift Roller Sizer do? Separates produce into multiple sizes.

What produce types can be used? Potatoes, carrots, onions and other round or cylindrical produce.

When should you use aLift Roller Sizer?

When you are running large tonnages and want to separate your produce into different sizes.

In a produce line, where should a Lift Roller Sizer be? At the end of your washing and drying line.

What other equipment might be needed?Infeed conveyor to evenly spread produce.Cross conveyors beneath rollers to carry sized produce to the next stage in your line.

What should you consider when choosing a Lift Roller Sizer?

Width, the number of drops (size variations), chain pitch, roller type and roller size.

Adjustable feet

Size adjustment ramps

Geared motor

Oiler unit

Cross conveyor *

Lift rollers

Chain

Infeed conveyor *

* Optional

Runner rollers

Sprockets


Revision: B


General Information (cont.)Product Overview

How does a Lift Roller Sizer work?

Produce is carried forward on a series of adjustable rollers. The rollers are mounted on two endless chains (one on each side) and travel on a series of ramps. As the rollers move forward, every second roller lifts up to the height of the ramp, creating an opening. Produce smaller than the gaps fall through the rollers and larger produce continues on.

Each ramp is higher than the one before so gaps get progressively larger, allowing larger produce to fall through the rollers.

Ramp heights are easily adjusted using the handles located along one side of the Lift Roller Sizer. Adjustments can be made while the equipment is operating.

Things that affectLift Roller Sizer performance:

Produce Size and type.

MachineProduce feed method.Maintenance.

What chain pitch should you choose? *

Chain pitch selection determines the minimum and maximum distances between rollers.

6” chain pitch

Recommended for cylindrical produce e.g. carrots and parsnips or produce with a similar diameter.

8” chain pitch

Recommended for round produce e.g. potatoes and onions or produce with a similar diameter.

What roller type should you choose?

Roller type will depend on accuracy and throughput requirements.Cylindrical rollers: cylindrical and round produce. Higher throughput.Scalloped rollers: round produce. Higher accuracy.

What roller size should you choose? Roller size should be similar to average produce size.* General guideline only; variations may be recommended to suit individual requirements.


Revision: B


Features & Benefits

Feature Benefit

A Infeed conveyor* Minimises produce fall and evenly distributes produce across the width to optimise capacity.

B Ergonomic size adjustment handle Easy grade adjustments can be made during operation.

C Choice of rollers and combinationsAccurate diameter sizing. Suitable for many produce types.

D Heavy-duty drive system Built for strength and durability.E Safety cover Additional safety mechanisim that you can walk on.F Reversible cross conveyors* Line flexibility: sized produce can exit either side.

Variable speed control Adjustment of roller speed to suit produce type, condition and volume.

Centralised greasing system for chain and bearings* Increases life expectancy of moving parts.

Limiting ramps*Prevents lift rollers jumping when large produce is forcing them upward.Keeps sizing accurate.

Upgrade to heavier roller piping**

Increases friction on the baler belt to keep rollers rotating. Useful for large produce.Keeps sizing accurate.

C

D

C

E

A B

F

* Optional** Available for cylindrical rollers only.


Revision: B


Technical InformationItem Model

GRXXX12 Model GRXXX15

Model GRXXX18

Model GRXXX20

Sizer width (approx.) 1200mm (47") 1500mm (60") 1750mm (69") 2000mm (79")

Throughput *(approx.)

Determined by width and roller speed.Frequency Normal potatoes

35 Hz 11 t/hr(24250 lb/hr)

14 t/hr(30864 lb/hr)

17 t/hr(337478 lb/hr)

19 t/hr(41887 lb/hr)

50 Hz 16 t/hr(35274 lb/hr)

20 t/hr(444092 lb/hr)

24 t/hr(52910 lb/hr)

27 t/hr(59524 lb/hr)

60 Hz 20 t/hr(44092 lb/hr)

24 t/hr(8818 lb/hr)

29 t/hr(63934 lb/hr)

33 t/hr(72752 lb/hr)

75 Hz 24 t/hr(52910 lb/hr)

31 t/hr(68343 lb/hr)

36 t/hr(79366 lb/hr)

41 t/hr(90389 lb/hr)

Frequency Russets

35 Hz 13 t/hr(28660lb/hr)

16 t/hr(35274 lb/hr)

19 t/hr(41887 lb/hr)

22 t/hr(48501 lb/hr)

50 Hz 19 t/hr(41887 lb/hr)

23 t/hr(50706 lb/hr)

27 t/hr(59524 lb/hr)

31 t/hr(68343 lb/hr)

60 Hz 22 t/hr(48501 lb/hr)

28 t/hr(17637 lb/hr)

33 t/hr(72752 lb/hr)

37 t/hr(81571 lb/hr)

75 Hz 28 t/hr(61729 lb/hr)

35 t/hr(77161 lb/hr)

41 t/hr(90389 lb/hr)

47 t/hr(103617 lb/hr)

Frequency Carrots

35 Hz 7 t/hr(15432 lb/hr)

8 t/hr(17637 lb/hr)

9 t/hr(19841 lb/hr)

11 t/hr(24250 lb/hr)

50 Hz 9 t/hr(19841 lb/hr)

11 t/hr(24250 lb/hr)

13 t/hr(28660 lb/hr)

15 t/hr(11023 lb/hr)

60 Hz 11 t/hr(24250 lb/hr)

14 t/hr(30864 lb/hr)

16 t/hr(35384 lb/hr)

18 t/hr(39683 lb/hr)

75 Hz 14 t/hr(30864 lb/hr)

17 t/hr(37478 lb/hr)

20 t/hr(44092 lb/hr)

23 t/hr(50706 lb/hr)

Speed (approx.) Up to 32m/min.Number of size variations (number of drops) 3 - 7

Chain pitch 6" or 8"

Roller typeCylindrical Scalloped

Noise level (approx.) 70 dB

Materials

Cylindrical rollers Stainless steel tube.Scalloped rollers Polyethylene spool.Pipe schedule ** Sch 10 or Sch 40.Frame Mild steel, galvanised and painted.Chain Zinc plated, heavy duty chain.

* Indicated for cyclindrical rollers** Optional


Revision: B


Technical InformationStandard Roller OptionsLift Roller Fixed Roller Minimum Produce Size A Maximum Produce Size B

6" chain pitch options:

64mm (21⁄2") 64mm (21⁄2") 20mm (3⁄4")Diameter 89mm (31⁄2")Length 89mm (31⁄2")

76mm (3") 76mm (3") 10mm (3⁄8")Diameter 76mm (3")Length 76mm (3")

60.3mm (2") 76mm (3") 16mm (5⁄8")Diameter 76mm (3")Length 76mm (3")

8” chain pitch options:

89mm (31⁄2") 89mm (31⁄2") 19mm (3⁄4")Diameter 114mm (41⁄2")Length 114mm (41⁄2")

Scalloped 102mm (4") Scalloped 102mm (4") 37mm (11⁄2")Diameter 116mm (41⁄2")Length 101mm (4")

Scalloped 106mm (41⁄8") Scalloped 106mm (41⁄8") 28mm (11⁄8")Diameter 112mm (43⁄8")Length 97mm (33⁄4")

Talk to your Wyma representative about specific roller combinations.

Minimum distance Maximum distance

A

Scalloped RollersCylindrical Rollers

Minimum distance Maximum distance

A

BB


Revision: B


Site Requirements

Health & Safety Considerations• Take care around entire machine during operation.• Motors can run hot; >65°C. Keep personnel clear.

Site RequirementsLevel surface Lift Roller Sizer must be installed on a level surface. Floor area Must be installed with maintenance and cleaning access.Installation equipment Overhead crane. Lifting chains/strops or on skids.Power supply Three-phase electrical supply is needed.

Supply requirements Dependent on specific configuration. Please check with your Wyma Representative.

Technical Information (cont.)

Electrical Options - all UL / CE / CSA Compliant (as needed)

Voltages: 400 - 415 V / 50 Hz or 220 - 230 V / 60 Hz or 460 V / 60 Hz

Basic Electrics-Wyma standard

Includes motor isolators (lockable, rotary type, IP66/67).Equipment fully wired, tested and ready to install.

Full Electrics

Emergency Stop push button.

Control panel mounted on a standalone electrical panel.

Lift Roller Sizer speed control.Remote/local mode control.Machine start/stop.Fault reset.

Optional Extras DetailCentralised greasing systems Lubrication systems for chain and bearings.

Cross conveyors

Reversible and adjustable cross conveyor.Mild steel, galvanised and painted frame with stainless steel side panels.PVC belt.600mm (24") width.

Construction frame Upgrade to stainless steel construction.Limiting ramps Prevent lift rollers jumping when running large produce.Heavier piping Upgrade to Schedule pipe.


Revision: B


Service & Maintenance Information

Item Task How Often?

Gearbox Check for leaks. If there is a leak, check level and top-up if required. Daily

BearingsCheck wear and replace if needed.

WeeklyLubricate.Oiler unit Check level and top up if needed.

ChainInspect and adjust if needed.

Monthly

Check wear and replace if needed.Runner bushes Check wear and replace if needed.Wear strips Check wear and replace if needed.Ramp rubber mounts Check wear and replace if needed.Sizer chain tension Inspect and adjust if needed.Wiring / electrics Inspect and replace if needed.

Service & Maintenance Requirements

Procedure Examples

Lift RollerRemoval

1. Remove end panels.2. Remove retaining bolt and retainer.3. Remove lift roller and refit new roller.4. Securely fasten all parts.

Duplex Motor Chain Tensioning

1. Loosen mounting and tensioner bolts.2. Release tension from motor.3. Tighten tensioner bolts as required.4. Tighten mounting bolts.


Revision: B


Dimensions (approx.)

Example Images

A

B

C

Three drop Four drop Five drop Six drop Seven dropA 4453mm (175") 4877mm (192") 5677mm (223") 6455mm (254") 7251mm (285")B 1200mm (47"), 1500mm (60"), 1750mm (69"), 2000mm (79")C Bed width + 550mm (22")D* 1680mm (66")

*+/- 120 (adjustable feet)

D

product information...cross conveyor * lift rollers chain infeed conveyor * * optional runner...

Documents