Eye-Flex® Conveyor Belt

Heavy-duty modular conveyor belt

Eye-Flex® steel conveyor belts are engineered for applications that require an extremely rugged, long lasting belt. Eye-Flex's greater strength, carrying capacity, and open flat surface profile is the answer to all your heavy-duty conveying needs, whether you have a new or a replacement application.  Eye-Flex® has almost limitless options and its configurations are custom designed to meet your requirements.

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Eye-Flex conveyor beltsEye-Flex® has almost limitless options and its configurations are custom designed to meet your requirements. For product orientation, Eye-Flex® offers flights and side guards to meet all product handling needs. Additionally, Eye-Flex® is available with multiple drive options including cage rollers, positive drive sprockets, and an optional chain edge drive for enhanced tracking and reliability.

Advantages of Eye-Flex® include:

  • Flat carrying surface
  • Easy to clean due to open construction
  • Positive drive
  • High load capacity
  • Modular design
  • Almost unlimited application possibilities
Eye-Flex’s high strength, robustness and open, flat carrying surface provide the answer to your heavy duty conveyor belt requirements.

Many elements of Eye-Flex® belt can be customised to suit each individual application, such as gap width and fixing method:
 
  • Normal gap
  • Ring
  • Spring
  • Distance sleeves
  • Underwelded wire

Optional Features

  • Side chains, hollow pin or loose link chain
  • Side guards
  • Cross flights

Typical Applications:

  • Transport
  • Cooking
  • Heating
  • Drying
  • Cooling
  • Drainage
  • Freezing
  • Frying
  • Baking
  • Washing
  • Weed Clearing
  • Curing
  • Sorting
  • Dredging
  • Elevating
  • De-Elevating
  • Loading
  • Degreasing
  • Grading
 

Eye-Flex® belt without spacers


Eye-Flex® has a standard construction based on a straight modular form.  It is designed and built without spacers or perpendicularly welded under wires.  This allows excellent flow-through in applications where no cross support is required.  Eye-Flex® is often used in food processing for its flat conveying surface, open  mesh configuration, and ease of cleaning.  Eye-Flex® without spacers is also easily repaired with minimal cost. 
 

Eye-Flex® belt without spacers

Belt Pitch mm Wire Dia. mm Cross Rod Dia. mm            Belt Pitch mm Wire Dia. mm Cross Rod Dia. mm
15.875 1.80 3.20   50.00 3.00 5.00
25.00 2.00 5.00   50.80 1.60 8.00
25.40 2.00 5.00   50.80 1.60 6.00
30.00 1.60 4.00   50.80 2.00 8.00
30.00 2.00 4.00   50.80 2.50 8.00
30.00 2.00 5.00   50.80 2.50 5.00
30.00 2.00 7.00   50.80 3.00 5.00
30.00 2.00 8.00   50.80 4.00 7.00
31.75 2.00 5.00   60.00 2.00 5.00
50.00 1.40 5.00   60.00 2.50 5.00
50.00 1.60 5.00   70.00 4.00 7.00
50.00 2.00 5.00   75.00 2.50 5.00
50.00 2.50 6.00   75.00 2.50 8.00
50.00 2.50 8.00   100.00 3.00 8.00

 

Eye-Flex® belt with underwelded wire spacing


Eye-Flex® belting with underside welded wires provide the largest range of available gap widths, up to 50mm.  One, two or three wires can be welded to the underside of the links, depending on the belt pitch and application requirements.  Underwelded wire spacing should be considered on applications where hygiene and sanitation are critical.  The underwelded wire eliminates the potential bacteria traps under the spacers, springs, rings and sleeves.  This configuration makes cleaning and sanitation easy and more efficient.

 

Eye-Flex® belt with underwelded wire spacing
Belt Pitch Wire Diameter Cross Rod Diameter Minimum Gap Spacing Gap in Steps of Maximum No. of Welded Wires
mm mm mm mm mm mm
15.875 1.80 3.20 2.00 0.10 1
25.000 2.00 5.00 2.30 0.10 2
25.400 2.00 5.00 2.30 0.10 2
30.000 2.00 4.00 2.30 0.10 2
30.000 2.00 5.00 2.30 0.10 2
50.000 2.00 5.00 2.30 0.10 3
50.000 2.50 5.00 2.80 0.10 3
50.000 2.50 6.00 2.80 0.10 3
50.800 2.50 8.00 2.80 0.10 3
50.800 3.00 8.00 3.30 0.10 3
75.000 2.50 5.00 2.80 0.10 3
75.000 2.50 8.00 2.80 0.10 3

Eye-Flex® belt with rings as spacers


This versatile variation of Eye-Flex® uses rings between the wires to increase the belt gap.  By increasing the belt gap, more air will circulate around the bottom of the product.  Increasing the product exposure to this additional air flow improves the efficiency of your process.  The gap is set by one or more rings placed between adjacent links on the cross rod.  The gap width is determined by the number and thickness of rings used.


 


 
  Eye-Flex® belt with rings as spacers  
                 
Belt Pitch
mm
Wire Diameter
mm
Cross Rod Diameter
mm
Minimum Gap Spacing
mm
Gap Spacing can
be increased by mm
   
             
25.000 2.00 5.00 4.00 2.00    
25.400 2.00 5.00 4.00 2.00    
30.000 2.00 4.00 4.00 2.00    
30.000 2.00 5.00 4.00 2.00    
31.750 2.00 5.00 4.00 2.00    
50.000 2.00 5.00 4.00 2.00    
50.000 2.50 5.00 5.00 2.50    
50.000 2.50 6.00 5.00 2.50    
50.800 2.50 6.00 5.00 2.50    
50.800 2.50 8.00 5.00 2.50    
50.800 4.00 8.00 8.00 4.00    
60.000 2.00 5.00 4.00 2.00    
60.000 2.50 5.00 5.00 2.50    
75.000 2.50 5.00 5.00 2.50    
75.000 2.50 8.00 5.00 2.50    

Eye-Flex® belt with springs as spacers

Springs help create a more dimensionally stable belt in heating or freezing applications.  These belts are more dimensionally stable because the wires are able to move on the cross rod.  Springs also expose a large proportion of the connecting rod for improved cleaning and sanitising.  The gap width is secured by springs placed on the cross rod between adjacent links.  Permanent fixing of the wire links does not occur with this method.  They are held in relative position by compression of the springs.







 

Eye-Flex® belt with springs as spacers
Belt Pitch
mm
Wire Diameter
mm
Cross Rod Diameter
mm
Minimum Gap Spacing
mm
Gap Spacing also Available in these Widths mm
25.000 2.00 5.00 7.00 8.00 10.00 12.00 15.00 17.50 20.00
25.400 2.00 5.00 7.00 8.00 10.00 12.00 15.00 17.50 20.00
30.000 2.00 4.00 7.00 8.00 10.00 12.00 - - 20.00
30.000 2.00 5.00 7.00 8.00 10.00 12.00 15.00 17.50 20.00
31.750 2.00 5.00 7.00 8.00 10.00 12.00 15.00 17.50 20.00
50.000 2.00 5.00 7.00 8.00 10.00 12.00 15.00 17.50 20.00
50.000 2.50 5.00 7.50 8.00 10.00 12.00 15.00 17.50 20.00
50.000 2.50 6.00 7.50 - - - - - 20.00
50.000 3.00 8.00 10.50 - - - 15.50 - 20.00
50.800 2.00 6.00 7.00 - - - - - -
50.800 2.00 8.00 8.00 - - - - - -
50.800 2.50 6.00 7.50 - - - - - 20.00
50.800 2.50 8.00 10.00 - - - 15.00 - 20.00
50.800 3.00 8.00 10.50 - - - 15.50 - 20.00
50.800 4.00 8.00 12.00 - - - - - -
60.000 2.50 5.00 7.00 8.00 10.00 12.00 15.00 17.50 20.00
60.000 2.50 5.00 7.50 8.50 10.00 12.00 15.00 17.50 20.00
70.000 4.00 7.00 12.00 - - - - - -
75.000 2.50 5.00 7.50 8.50 10.00 12.00 15.00 17.50 20.00
75.000 2.50 8.00 10.00 - 10.00 - 15.00 - 20.00
100.000 3.00 8.00 10.50 - 10.50 - 15.50 - 20.00

 

Availability of Eye-Flex® with spacer sleeves

Spacer sleeves as spacers are not considered standard.
Please contact Wire Belt Technical Sales if you require a belt with sleeves as a method of gap spacing.










Materials Available;

  • Stainless Steel 1.4301 (304) or 1.4571 (316Ti)
  • ​Mild Steel

Sprocket Pitch Diameter Table

Sprocket Pitch Diameter Table

Number of Teeth

Belt Pitch mm

15.875

25.00

25.40

30.00

31.75

50.00

50.80

60.00

70.00

75.00

100.00

7

36.60

57.60

58.50

69.10

73.20

115.20

117.10

138.30

161.30

172.90

230.50

10

51.40

80.90

82.20

97.10

102.80

161.80

164.40

194.20

226.50

242.70

323.60

12

61.30

96.6

98.10

115.90

122.70

193.20

196.30

231.80

270.50

289.80

386.40

14

71.30

112.4

114.20

134.80

142.70

224.70

228.30

269.60

314.60

337.10

449.40

15

76.40

120.2

122.20

144.30

152.40

240.50

244.30

288.60

336.70

360.70

481.00

16

81.40

128.2

130.20

153.80

162.70

256.30

260.40

307.60

358.80

384.40

512.60

18

91.40

144.0

146.30

172.80

182.80

287.90

292.60

345.50

403.10

431.90

575.90

20

101.50

159.8

162.40

191.80

203.00

319.60

324.70

383.60

447.50

479.40

 

Sprocket Material

Available material types include:
  • PA6G (Polyamide Cast Nylon 6) - FDA approved.
  • POM (PolyOxyMethylene  / Acetal) – FDA approved.
  • 1.4305 Stainless Steel - standard
  • 1.4404 Stainless Steel - for corrosive environments
  • Mild Steel
  • Other materials on special request.

Q & A Eye-Flex® Conveyor Belting

What is Eye-Flex® conveyor belt?

Eye-Flex® conveyor belting is engineered for applications that require an extremely rugged, long lasting belt. Eye-Flex®’s modular design consists of steel cross rods and reinforcing plates which contribute to the belt’s high pull strength, and support a highly customisable array of wire links which provide Eye-Flex®’s product carrying surface.

What benefits can this belt offer?

The modular design and customisable wire link surface of Eye-Flex® provide the belt with almost unlimited application possibilities, as the layout of the carrying surface can be specified independently of the load requirements.
Eye-Flex® is ideally suited to high load applications in hygiene sensitive environments since the open construction of the wire link array allows for a Clean-In-Place wash-down procedure, and therefore reduces the burden on hygiene teams between shifts.
The panel design of Eye-Flex® provides a flat, stable carrying surface – ideal for applications such as canning or pasteurisation where toppling of product can be of concern.
Eye-Flex® is a positively driven belt, reducing the requirement for engineering and maintenance teams to accurately track and tension the belt system when compared to friction driven alternatives.

Where is Eye-Flex® commonly used?

Within the food industry, Eye-Flex® can often be found in heat sensitive applications such as ovens, fryer, coolers and freezers. It is also employed as a transfer belt where the conveyor length or product load requires a belt with exceptional pull strength.
Outside of the food industry, Eye-Flex® can be found in applications as diverse as water-dredging/filtration, degreasing, recycling and sorting.

What material is Eye-Flex® available in?

Eye-Flex® is most commonly supplied in Stainless Steel 1.4301 (304SS) which provides adequate corrosion protection for the majority of food applications.
For applications with a high risk of corrosion (i.e. exposure to saltwater or aggressive cleaning solutions) we can also provide the belting in Stainless Steel 1.4571 (316Ti).
Where corrosion is unlikely to occur, we can offer the belting in mild steel.
Available material for drive components include:

  • PA6G (Polyamide Cast Nylon 6)
  • POM (PolyOxyMethylene/Acetal)
  • 1.4305 Stainless Steel
  • 1.4404 Stainless Steel
  • Mild Steel

How can an Eye-Flex belt be configured?

As standard, Eye-Flex® belting is supplied with reinforcing plates at the edge, with drive being provided by specially formed sprockets that engage with the underside of the belt. For enhanced tracking and reliability, Eye-Flex® can also be supplied with side chains as an alternative drive method.

Eye-Flex® has a standard construction based on a straight modular form with wire links stacked next to one another. Eye-Flex® without spacers is simple to construct and easily repaired with minimal cost.

Eye-Flex® belting with underside welded wires provides the largest range of available gap widths, up to 50mm.  Underwelded wire spacing should be considered on applications where hygiene is critical as this configuration makes cleaning and sanitation easy and more efficient.

Eye-Flex® belting with ring spacers provides an alternative method of increasing the gap width.  The gap is set by one or more rings placed between adjacent links on the cross rod.  The gap width is determined by the number and thickness of rings used.

Eye-Flex® belting with spring spacers provide a more dimensionally stable belt in heating or freezing applications.  The link gap is maintained because the wires are able to move on the cross rod.  Springs also expose a large proportion of the connecting rod for improved cleaning and sanitising. 

Flights are available on Eye-Flex® belts to aid in product alignment, separation, or loading. Flights can also form a barrier across the belt width, that can aid transport of product up inclines. Other styles of flights can hold product in fixed positions. Flights can be bolted, welded in place, or formed directly into the wire.

Eye-Flex® belts can be equipped with side guards to prevent product from falling off the side of the belt. Height and shape of the side guards can be customised for your product or application. These side guards can also be inserted at various points across the belt width providing a positive separation between rows of product.
 

Eye-Flex® Conveyor Belt

Belt Edge Configurations

Chain Edge

Eye-Flex® chain edge

Chain edges are available on Eye-Flex® belts as an alternative method for driving the belt for enhanced tracking and reliability.

 

Reinforcing Plates

Eye-Flex® reinforcing plates edge
Reinforcing plates are the typical edge style. These are solid metal plates added before the connecting rod is welded. Additional reinforcing plates can be added at the edge of the belt, or at specified increments across the belt width to further enhance the strength of this belt.

Eye-Flex® Conveyor Belt

Flights and Product Alignment

Eye-Flex® belt flight

Flights are available on Eye-Flex® belts to aid in product alignment, separation, or loading. Flights can also form a barrier across the belt width, that can aid transport of product up inclines. Other styles of flights can hold product in fixed positions. Flights can be bolted, welded in place, or formed directly into the wire. Height, shape and style of flight can be customised for your application. Contact our Technical Sales Engineers for more information.

Eye-Flex® belt flight

Eye-Flex® Conveyor Belt

Side Guards

Eye-Flex belt side guards
Eye-Flex® belts can be equipped with side guards to prevent product from falling off the side of the belt. Height and shape of the side guards can be customised for your product or application. These side guards can also be inserted at various points across the belt width providing a positive separation between rows of product.

Inspection and Installation Checklist

Yes

 

No

Before you begin joining the belt

      1. Power to conveyor is disconnected
      2. Wear safety glasses
      3. Correct tools on hand
      4. All tensioning mechanisms released
      5. Belt threaded onto conveyor right (smooth) side up
      6. Belt length is an even number of pitches (to allow reinforcing plate rows to align at the join)

 Yes

 

No

After joining/installation completed

      1. Check sprocket teeth alignment (Not needed if shaft is “keyed”)
      2. Check positions of wear strips and adjust if not supporting reinforcing plates (Not applicable to herringbone or chevron support)
      3. Check belt tracking
      4. Retighten/adjust tension
      5. Test tracking by running belt without product; adjust belt
      6. Tools returned to proper storage locations

 Yes

 

No

Conveyor Safety Check

      1. Are operating instructions clearly listed or posted?
      2. Are safety guards adequate to prevent accident and injury?
      3. Are limit switches and alarms working?
      4. Personnel know location of emergency stop/control switches

 Yes

 

No

Routine Maintenance Inspection/Evaluation

      1. Check belt surface for bent or broken Eye-Links
      2. Check all conveyor components for excessive wear (drive sprockets, idler rollers, wear strips, etc.) replace if needed.
      3. Check positions of wear strips and adjust if not supporting reinforcing plates (Not applicable to herringbone or chevron support)
      4. Check belt tracking
      5. Check levelness of conveyor frame
      6. Test tracking by running belt without product; adjust belt

Eye-Flex® Conveyor Belt

Drive & Idle Shaft Set-up Instructions

All drive sprockets and blank rollers are supplied with a single tapped hole fixing and key slot.

The drive shaft sprockets are to be positioned as per the diagram below.  Ensure that the sprockets are set centrally to any rows of reinforcing plates allowing equal sideways float of the belt between the reinforcing plates and the edge of the sprocket teeth. The edge sprockets must also have the same clearance between the reinforcing plates and the teeth edge.

Similarly the idle infeed shaft is set up in the same way but can comprise of all blanks or edge sprockets to ensure rotation of the shaft as shown below.  If added drive & belt guidance of the idle shaft is required then more sprockets can be added.


If the belt only has reinforcing plates and/or chain edge (without intermediate rows of reinforcing plates) then the drive sprockets within the width of the belt should be spaced out equally across its width.  In this instance the intermediate sprockets and blank rollers will be full faced – without the reinforcing plate row clearance groove.

If the belt is supplied with a chain edge then sprockets to suit will also be provided and these should be aligned with the chain in a similar way.

All sprockets and blank rollers can be firmly fixed in position by drilling and dimpling the shaft key through the tapped hole position but before this first double check all alignments and clearances by offering up to each shaft a section of belt.  Due to the general build and weight of the belt it may be easier to do this at the point of belt installation.

Due to the complexity of some process system layouts additional shaft rollers may be required and therefore the same rules apply.

If Wire Belt Company supplies full width cage roller drive and idler arrangements then these require no special alignment, apart from centralising each cage drive and roller assembly to the conveyor centre line.

Please contact Wire Belt Technical Sales Team if you require further assistance or clarification of the details.
 

Eye-Flex® Conveyor Belt

Drive Components

Sprockets

Eye-Flex® sprockets

With their positive engagement, sprockets eliminate the possibility of slippage on the drive shaft that can occur on a friction drive system. All sprockets are available in stainless steel or polyacetal plastic. The table below shows the available pitch diameters and number of teeth for each belt pitch.

Sprocket pitch diameter table

Number of Teeth

Belt Pitch mm

15.875

25.00

25.40

30.00

31.75

50.00

50.80

60.00

70.00

75.00

100.00

7

36.60

57.60

58.50

69.10

73.20

115.20

117.10

138.30

161.30

172.90

230.50

10

51.40

80.90

82.20

97.10

102.80

161.80

164.40

194.20

226.50

242.70

323.60

12

61.30

96.6

98.10

115.90

122.70

193.20

196.30

231.80

270.50

289.80

386.40

14

71.30

112.4

114.20

134.80

142.70

224.70

228.30

269.60

314.60

337.10

449.40

15

76.40

120.2

122.20

144.30

152.40

240.50

244.30

288.60

336.70

360.70

481.00

16

81.40

128.2

130.20

153.80

162.70

256.30

260.40

307.60

358.80

384.40

512.60

18

91.40

144.0

146.30

172.80

182.80

287.90

292.60

345.50

403.10

431.90

575.90

20

101.50

159.8

162.40

191.80

203.00

319.60

324.70

383.60

447.50

479.40

 

Cage Rollers

cage rollers

This positive drive system is often used for chain edge belts. In addition to driving the chain edge, this drive system also engages the belt across the entire belt width. Cage rollers are an excellent choice for applications that require a sanitary and hygienic drive system.

Eye-Flex® Conveyor Belt

Belt Installation Guidelines

Preparation

Before installing a new belt, always check the conveyor structure;
  • Shafts to be at 90º to direction of travel, and horizontal.
  • Rollers to be free to rotate.
  • Sprockets to be correctly positioned, and aligned.
  • Belt supporting surfaces are smooth and level with adequate belt edge clearance.
  • Check that there are no parts of the structure that can catch up the belt.
  • If a take up mechanism is fitted, ensure that it is functioning correctly.

Tools you will need:

  • Safety glasses
  • Flat end pliers
  • Side cutting pliers
  • Grinder or alternatively a hacksaw
  • Heavy duty cable ties/wire/rope (optional)
  • Pulling rope (for long new conveyor installations)
  • Manual pulley or powered winch system (for long heavy weight belt systems only)
  • Necessary tools for conveyor belt take up adjuster
  • Welding set to complete the belt edge cross rod join(s)

Installation Procedure:

  1. First ensure that the electrical supply to the conveyor is turned off and the power supply locked out.
  2. Release any conveyor belt tension take up mechanism to allow maximum adjustment during use.
  3. The top surface of the belt is flat with the cross rod/link ridges on the underside.
  4. There is no direction of travel to this style of belt (unless overlapping side guards or cross flights are fitted).
  5. The belting should be pulled through the conveyor circuit until the two ends meet.  There are 2 approaches to this:-  
Existing Belt Installation:  In this instance the existing belt would be cut on the non-drive carry way surface (normally idle infeed end) by grinding or cutting off a cross rod head and then withdrawing the rod.

Important Note: Before doing this, check the lead edge of the new belt to ensure you will maintain the in/out pattern of assembly when the ends of the belt (new and old) are connected.  

T
hen temporarily attach the lead of the new belt roll to the lagging end of the existing belt using the supplied joining cross rod.  With the cross rod fully inserted clip onto the plain rod end the supplied split ring.  Tap the ring in position whilst supporting the opposite end rod head.  If the belt is supplied in more than one length you will need to repeat this attachment procedure.  Then by means of supporting the new belt (whether on a roll or layered on a pallet) you will be able to carefully drive the belt (operate at slow speed) into the conveyor using the existing belt – always maintain suitable belt tension to ensure there is no belt slip on the drive sprockets.  Whilst the belt is being driven in the old belt should be collected at the underside infeed end and layered carefully onto a pallet or suchlike for disposal.  Once the lead edge of the new belt has been pulled through the circuit to the infeed end, remove the first temporary fix cross rod and split ring, taking care to collect the split ring. Then layer the leading belt edge over the trailing edge of the new belt and mark the cross rod cutting point to maintain the in/out pattern of assembly.  The excess belt should then be removed by grinding or cutting off the appropriate rod head and withdrawing the rod, whilst maintaining the correct in/out repeat pattern of the belt edge.  Then continue on from step 6.

















 
New Conveyor Installation: If fitting the belt to a conveyor, where there is no existing belt (such as a new installation), the belt will have to be fed through the conveyor circuit by hand.  For long heavy belt weight conveyors where it is not possible to pull the belt through by hand the process will be different.  First insert through the belt leading edge links, plates and side chains (if fitted) a supplied cross rod.  With the cross rod fully inserted temporarily clip onto the plain rod end the supplied split ring.  Tap the ring in position whilst supporting the opposite end rod head.  Then attach a steel drilled pulling bar of your own supply (see below) using cable ties, wire or similar.  To this bar attach a pulling rope which is then fed through the conveyor carry way to the discharge.  From here the belt can be pulled through the carry way part of the circuit.  For long heavy belt systems it may be possible to pulley wrap the rope around the drive shaft to give assistance in pulling the belt – ensure that the drive is controlled and operated at slow speed.  Check that the lead edge of the belt and cross bar does not catch on any part of the conveyor framework.  Once the lead edge of the belt is at the discharge end the rope should then be fed back through the return way of the belt circuit to the infeed end (after first removing the rope from the drive shaft if a pulley wrap of rope was used).  The belt can then be pulled through the return way (maybe with slow speed drive assistance) to the infeed end.  For long heavy belt weight systems a manual pulley rope or powered winch cable attached to the cross bar/rope may be required.  However if you are not able to control the speed of the belt drive shaft and the pulley/winch system together then we suggest that you disconnect the geared motor drive from the drive shaft allowing the drive shaft to freely rotate in its bearings.  Take care to ensure the lead edge of the belt does not catch on any part of the conveyor framework during this operation. Once the lead edge of the new belt has exited the return way at infeed, remove the cross bar, rope and any pulley or winch cables used. Then remove the leading edge temporary fix belt cross rod and split ring, taking care to collect the split ring. Next layer the leading belt edge up around the infeed idle roller and over the trailing edge of the new belt (on the carry way) and mark the cross rod cutting point to maintain the in/out pattern of assembly.  The excess belt should then be removed by grinding or cutting off the appropriate rod head and withdrawing the rod, whilst maintaining the correct in/out repeat pattern of the belt edge.  Then continue on from step 6.

























N.B. It may be more practical to remove the existing belt and fit the replacement by hand on short, light duty conveyors.


6.Temporarily, the two ends can be tied together; this may make assembly easier.

7.The adjacent join position wire links/plates and side chains (if fitted) can then be layered together.  Check that all links, plates & chains are maintaining the pattern of assembly before you re-inserting the joining cross rod.  Then connect the ends by inserting a supplied cross rod through the mating links/plates and chains to make the belt endless.  Re-attach the split ring to the rod head as previously described.  It may help to lay a board under the join positions to ensure that the wire links and plates lay flat when inserting the cross rod.  Then finally check that the pattern of assembly is maintained across the join position(s) before proceeding.
 
Note! A correctly assembled belt will always have an even number of pitches, in its’ length.

8.Finish the rod(s) by welding in place the split ring(s) to the rod head to complete the join. Note! Care should be taken not to weld the rings to the edge plates or side chains. Then check to ensure the belt still articulates freely after joining.

9.Re-connect the geared motor to the belt drive shaft if it had been disconnected during the belt fitting process.

10.The take-up, or tensioning, should be adjusted in accordance with the manufacturer’s instructions. Generally, a correctly set-up conveyor will have small catenary loop in the belt return path and just enough tension to ensure that the belt engages with the sprockets and continues to drive.

11.After a few hours of process running check the tension and adjust if required.
 

Notes:

Sometimes a belt can show signs of surging, hunting or jerking. What could be happening may be an effect sometimes referred to as “slip-stick” which can afflict some longer conveyors (with any type of belt). The belt can act something like a spring. The idle end of the belt can remain stationary until belt tension increases to the point that static friction is overcome; the belt can then surge ahead and the resulting drop in tension may then allow the belt to slow, or even stop. The cycle of surging can then become repetitive; if this problem persists then consult the designer or manufacturer of the conveyor.

Case Studies


Example #1

At Wire Belt we undertook a number of capital projects in the lead up to the Olympics, but there is none more unusual than the Eye-Flex® belt being used to clear the waterways around the Olympic Park. Wire Belts’ involvement with this project dates back to November 2006. The Canal and River Trust already had a weed clearing boat, and fundamental to its’ operation was the use of Eye-Flex type wire link belting.

In February 2007, the Canal and River Trust visited Wire Belt to discuss damage and maintenance problems that they were experiencing with belting from their existing supplier. Wire Belts’ John Warters was able to offer the solutions.

By changing its’ construction, the belt was made more resilient to damage and by re-engineering the boat, to use multiple narrow belts, utilisation was improved. From an original belt life of two years the new belt, with about 20% repair and replacement, lasted for five years.

On 23 May 2012 the Canal and River Trust, with funding from the Environment Agency, launched two new weed boats that will service London’s waterways during the Olympics and beyond. The rivers and canals in East London formed a backdrop to the London 2012 Games, and keeping them clean and weed-free was more important than ever.

The belts for the new boat were supplied from Wire Belts’ factory, in Northern Germany, directly to the German boat builder.

Over £60 million was invested in regenerating East London’s waterways, creating a wonderful legacy that stretches far beyond the summer of 2012. Rivers and canals are a prominent feature of the Olympic park.


Example #2

Eye-Flex® belting from Wire Belt, along with Flat-Flex® belting for less demanding situations, is used in a number of weed and debris applications.  These include removing leaves from water channels at fish farms and in protecting small-scale hydro-electric generation installation from debris.

The picture here is of an installation at a hydro-electric generation project.