Eye-Flex®

Metal modular conveyor belt

Designed for harsh applications that require an extremely heavy-duty belt, Eye-Flex® belts are custom designed with almost unlimited configurations to meet your applications demanding requirements. Additionally, Eye-Flex® belts are available with multiple drive options including friction driven cage rollers, positive drive sprockets, and an optional chain edge drive for enhanced tracking and reliability.

Request A Quote Call Me Now

Eye-Flex® conveyor belt advantages:

  • Eye-Flex® conveyor beltToughest conveyor belt available
  • Flat surface profile
  • Modular design
  • High temperature capability and a wide variety of steel specifications available
  • Completely customizable with features including side guards, chain drive, and flights
Designed for harsh applications that require an extremely heavy-duty belt, Eye-Flex® belts are custom designed with almost unlimited configurations to meet your applications demanding requirements. Additionally, Eye-Flex® belts are available with multiple drive options including friction driven cage rollers, positive drive sprockets, and an optional chain edge drive for enhanced tracking and reliability.
 
 
Eye-Flex® belts offer flights and side guards to improve and control your process.
 

Typical Applications

  • Baking
  • Cooking
  • Cooling
  • Drying
  • Freezing
  • Heating
  • Loading
  • Roasting
  • Washing
 

Eye-Flex® Belt without spacers:

Eye-Flex® 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.
Belt Pitch Eye-Flex Wire Diameter Cross Rod Diameter Minimum Gap Spacing
in mm in mm in mm in mm
0.63 15.875 0.07 1.80 0.13 3.20 0.07 1.80
0.98 25.00 0.08 2.00 0.20 5.00 0.08 2.00
1.00 25.40 0.08 2.00 0.20 5.00 0.08 2.00
1.18 30.00 0.06 1.60 0.16 4.00 0.06 1.60
1.18 30.00 0.08 2.00 0.16 4.00 0.08 2.00
1.18 30.00 0.08 2.00 0.20 5.00 0.08 2.00
1.18 30.00 0.08 2.00 0.28 7.00 0.08 2.00
1.18 30.00 0.08 2.00 0.31 8.00 0.08 2.00
1.25 31.75 0.08 2.00 0.20 5.00 0.08 2.00
1.97 50.00 0.06 1.40 0.20 5.00 0.06 1.40
1.97 50.00 0.06 1.60 0.20 5.00 0.06 1.60
1.97 50.00 0.08 2.00 0.20 5.00 0.08 2.00
1.97 50.00 0.10 2.50 0.20 5.00 0.10 2.50
1.97 50.00 0.10 2.50 0.24 6.00 0.10 2.50
1.97 50.00 0.12 3.00 0.31 8.00 0.12 3.00
2.00 50.80 0.06 1.60 0.20 5.00 0.06 1.60
2.00 50.80 0.06 1.60 0.31 8.00 0.06 1.60
2.00 50.80 0.08 2.00 0.24 6.00 0.08 2.00
2.00 50.80 0.08 2.00 0.31 8.00 0.08 2.00
2.00 50.80 0.10 2.50 0.24 6.00 0.10 2.50
2.00 50.80 0.10 2.50 0.31 8.00 0.10 2.50
2.00 50.80 0.12 3.00 0.31 8.00 0.12 3.00
2.00 50.80 0.16 4.00 0.31 8.00 0.16 4.00
2.36 60.00 0.08 2.00 0.20 5.00 0.08 2.00
2.36 60.00 0.10 2.50 0.20 5.00 0.10 2.50
2.76 70.00 0.16 4.00 0.28 7.00 0.16 4.00
2.95 75.00 0.10 2.50 0.20 5.00 0.10 2.50
2.95 75.00 0.10 2.50 0.31 8.00 0.10 2.50
3.94 100.00 0.12 3.00 0.31 8.00 0.12 3.00
Note: Gap spacing can be increased in 0.02” (0.50 mm) increments.

 

Eye-Flex® Belt with underwelded wire spacing:

Eye-Flex® underwelded wire spacing
Eye-Flex® belting with 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.
Belt Pitch Eye-Flex Wire Diameter Cross Rod Diameter Minimum Gap Spacing Max. Number Welded Wires
in mm in mm in mm in mm
0.63 15.875 0.07 1.80 0.13 3.20 0.08 2.00 1
0.98 25.00 0.08 2.00 0.20 5.00 0.09 2.30 1
1.00 25.40 0.08 2.00 0.20 5.00 0.09 2.30 1
1.18 30.00 0.08 2.00 0.16 4.00 0.09 2.30 2
1.18 30.00 0.08 2.00 0.20 5.00 0.09 2.30 1
1.97 50.00 0.08 2.00 0.20 5.00 0.09 2.30 3
1.97 50.00 0.10 2.50 0.20 5.00 0.11 2.80 3
1.97 50.00 0.10 2.50 0.24 6.00 0.11 2.80 3
2.00 50.80 0.10 2.50 0.31 8.00 0.11 2.80 3
2.00 50.80 0.12 3.00 0.31 8.00 0.13 3.30 3
2.95 75.00 0.10 2.50 0.20 5.00 0.11 2.80 3
2.95 75.00 0.10 2.50 0.31 8.00 0.11 2.80 3
Note: Gap spacing can be increased in 0.02" (0.50 mm) increments.

 

Eye-Flex® Belt with rings as spacers:

Eye-Flex® 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.
Belt Pitch Eye-Flex Wire Diameter Cross Rod Diameter Minimum Gap Spacing Gap Spacing can be increased by increments of
in mm in mm in mm in mm in mm
0.98 25.00 0.08 2.00 0.20 5.00 0.16 4.00 0.08 2.00
1.00 25.40 0.08 2.00 0.20 5.00 0.16 4.00 0.08 2.00
1.18 30.00 0.08 2.00 0.16 4.00 0.16 4.00 0.08 2.00
1.18 30.00 0.08 2.00 0.20 5.00 0.16 4.00 0.08 2.00
1.25 31.75 0.08 2.00 0.20 5.00 0.16 4.00 0.08 2.00
1.97 50.00 0.08 2.00 0.20 5.00 0.16 4.00 0.08 2.00
1.97 50.00 0.10 2.50 0.20 5.00 0.20 5.00 0.10 2.50
1.97 50.00 0.10 2.50 0.24 6.00 0.20 5.00 0.10 2.50
2.00 50.80 0.10 2.50 0.24 6.00 0.20 5.00 0.10 2.50
2.00 50.80 0.10 2.50 0.31 8.00 0.20 5.00 0.10 2.50
2.00 50.80 0.16 4.00 0.31 8.00 0.31 8.00 0.16 4.00
2.36 60.00 0.08 2.00 0.20 5.00 0.16 4.00 0.08 2.00
2.36 60.00 0.10 2.50 0.20 5.00 0.20 5.00 0.10 2.50
2.95 75.00 0.10 2.50 0.20 5.00 0.20 5.00 0.10 2.50
2.95 75.00 0.10 2.50 0.31 8.00 0.20 5.00 0.10 2.50

 

Eye-Flex® Belt with springs as spacers:

Eye-Flex® 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 sanitizing.
Belt Pitch Eye-Flex Wire Diameter Cross Rod Diameter Minimum Gap Spacing Gap Spacing also available in these widths
in mm in mm in mm in mm in mm
0.98 25.00 0.08 2.00 0.20 5.00 0.28 7.00 .31, .39, .47, .59, .69, .79 8.00, 10.00, 12.00, 15.00, 17.50, 20.00
1.00 25.40 0.08 2.00 0.20 5.00 0.28 7.00 .31, .39, .47, .59, .69, .79 8.00, 10.00, 12.00, 15.00, 17.50, 20.00
1.18 30.00 0.08 2.00 0.16 4.00 0.28 7.00 .31, .39, .47, .79 8.00, 10.00, 12.00, 20.00
1.18 30.00 0.08 2.00 0.20 5.00 0.28 7.00 .31, .39, .47, .59, .69, .79 8.00, 10.00, 12.00, 15.00, 17.50, 20.00
1.25 31.75 0.08 2.00 0.20 5.00 0.28 7.00 .31, .39, .47, .59, .69, .79 8.00, 10.00, 12.00, 15.00, 17.50, 20.00
1.97 50.00 0.08 2.00 0.20 5.00 0.28 7.00 .31, .39, .47, .59, .69, .79 8.00, 10.00, 12.00, 15.00, 17.50, 20.00
1.97 50.00 0.10 2.50 0.20 5.00 0.30 7.50 .33, .39, .47, .59, .69, .79 8.50, 10.00, 12.00, 15.00, 17.50, 20.00
1.97 50.00 0.10 2.50 0.24 6.00 0.30 7.50 .79 20.00
1.97 50.00 0.12 3.00 0.31 8.00 0.41 10.50 .41, .59, .79 10.50, 15.00, 20.00
2.00 50.80 0.08 2.00 0.24 6.00 0.28 7.00    
2.00 50.80 0.08 2.00 0.31 8.00 0.31 8.00    
2.00 50.80 0.10 2.50 0.24 6.00 0.30 7.50 .79 20.00
2.00 50.80 0.10 2.50 0.31 8.00 0.39 10.00 .39, .59, .79 10.00, 15.00, 20.00
2.00 50.80 0.12 3.00 0.31 8.00 0.41 10.50 .41, .59, .79 10.50, 15.00, 20.00
2.00 50.80 0.16 4.00 0.31 8.00 0.47 12.00    
2.36 60.00 0.08 2.00 0.20 5.00 0.28 7.00 .31, .39, .47, .59, .69, .79 8.00, 10.00, 12.00, 15.00, 17.50, 20.00
2.36 60.00 0.10 2.50 0.20 5.00 0.30 7.50 .33, .39, .47, .59, .69, .79 8.50, 10.00, 12.00, 15.00, 17.50, 20.00
2.76 70.00 0.16 4.00 0.28 7.00 0.47 12.00    
2.95 75.00 0.10 2.50 0.20 5.00 0.30 7.50 .33, .39, .47, .59, .69, .79 8.50, 10.00, 12.00, 15.00, 17.50, 20.00
2.95 75.00 0.10 2.50 0.31 8.00 0.39 10.00 .39, .59, .79 10.00, 15.00, 20.00
3.94 100.00 0.12 3.00 0.31 8.00 0.41 10.50 .41, .59, .79 10.50, 15.00, 20.00

 

Sprocket Pitch Diameter Table:

Number of Teeth Belt Pitch
inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm
0.63 15.875 0.98 25.00 1.00 25.40 1.18 30.00 1.25 31.75 1.97 50.00 2.00 50.80 2.36 60.00 2.76 70.00 2.95 75.00 3.94 100.00
7 1.44 36.60 2.27 57.60 2.30 58.50 2.72 69.10 2.88 73.20 4.54 115.20 4.61 117.10 5.44 138.30 6.35 161.30 6.81 172.90 9.07 230.50
10 2.02 51.40 3.19 80.90 3.24 82.20 3.82 97.10 4.05 102.80 6.37 161.80 6.47 164.40 7.65 194.20 8.92 226.50 9.56 242.70 12.74 323.60
12 2.41 61.30 3.80 96.6 3.86 98.10 4.56 115.90 4.83 122.70 7.61 193.20 7.73 196.30 9.13 231.80 10.65 270.50 11.41 289.80 15.21 386.40
14 2.81 71.30 4.43 112.4 4.50 114.20 5.31 134.80 5.62 142.70 8.85 224.70 8.99 228.30 10.61 269.60 12.39 314.60 13.27 337.10 17.69 449.40
15 3.01 76.40 4.73 120.2 4.81 122.20 5.68 144.30 6.00 152.40 9.47 240.50 9.62 244.30 11.36 288.60 13.26 336.70 14.20 360.70 18.94 481.00
16 3.20 81.40 5.05 128.2 5.13 130.20 6.06 153.80 6.41 162.70 10.09 256.30 10.25 260.40 12.11 307.60 14.13 358.80 15.13 384.40 20.18 512.60
18 3.60 91.40 5.67 144.0 5.76 146.30 6.80 172.80 7.20 182.80 11.33 287.90 11.52 292.60 13.60 345.50 15.87 403.10 17.00 431.90 22.67 575.90
20 4.00 101.50 6.29 159.8 6.39 162.40 7.55 191.80 7.99 203.00 12.58 319.60 12.78 324.70 15.10 383.60 17.62 447.50 18.87 479.40 25.17 639.30

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.

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 customized for your application. Contact our Technical Service Engineers for more information.

Eye-Flex® belt flight

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 customized 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

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.

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 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. 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.

Installation Procedure:

  1. Eye-Flex® belts can be disassembled by grinding off the welded end, and withdrawing the cross rod.
  2. With take-up, or tensioning devices, slackened off, the belting should be pulled through the conveyor until the two ends meet. On larger installations, attaching to the old belt, or using pulling cables, and employing the conveyor drive can achieve this.
  3. Any excess belt should be removed, whilst maintaining the inside/outside pattern of the reinforcing pates. Note! A correctly assembled belt will always have an even number of pitches, in its’ length.
  4. With the ends of the belt brought together, and all the wire links & reinforcing plates aligned, the joining rod is inserted through the belt making it endless.
  5. Finishing the rod by welding in place the washer or ring provided completes the join. Note! Care should be taken to ensure the belt still articulates freely after joining.
  6. The take-up, or tensioning, should be adjusted in accordance with the manufacturers 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.

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, utilization was improved. From an original belt life of two years the new belt, with about 20% repair and replacement, lasted for five years.

On May 23, 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 70 million dollars were 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.