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Accessories and Other Components

Angles, chain, cross members, cover plates, plate-type retaining edges, flights, etc. are supplied in plain or coated finishes to a wide range of ferrous and non-ferrous metals and various nickel or chrome alloys.

Balanced Weave

Fabric consisting of alternating right and left hand spirals joined by crimped connecting rods to form a continuous belt. In some fabrics straight connecting rods are used.

Belt Flipping Guideline

Recommended every 4,000-6,000 production hours for symmetrical belts to avoid outer edge stretching to extend belt life. Belt outer edge must not be greater than 3/16” longer in 1 ft. of belt measured under hand tension in a straight section.

Brazed or Soldered Edge

Edge finish completed by brazing or soldering only.

Butted Single Plate

Retaining edge consisting of a series of non-overlapping flat plates touching each other in a straight line.

Cambering

The arc or curve that occurs across the otherwise straight material of the belt. Typically the result of uneven loading on a belt. Camber resulting from heavier loading on the outside of a belt result in the middle of the belt leading and simulating the letter 'n.' Camber resulting from heavier loading in the middle of the belt results in the edges of the belt leading and simulating the letter 'u.'

Chain Driven Belts

Belt construction that provides positive traction by incorporating two or more rows of chain with woven spiral fabric. Chains commonly used for this purpose are detachable, pintle, and roller, which are connected by means of cross members. Cross members such as bars, angles, channels, rods, pipe, tubing, etc., usually are passed through or attached to the woven spiral belting and affixed to driving chains by means of chain accessories or by acting as pins of the chain.

Christmas Tree

Result of extreme high tension resulting in the belt being sucked up between the drum and belt supports.

Clinched Edge

This edge is accomplished by binding the ends of the connectors through positioned holes in the adjacent picket.

Compound Balanced Weave

Fabric consisting of alternating right and left hand spirals nested together, and joined by three or more straight connecting rods. In some fabrics crimped connecting rods are used.

Compressed Spiral Edges

Edge finish in which the outer turns of the spirals are compressed to a specified distance.

Conventional Weave

Fabric consisting of a series of either right or left hand spirals each turned into the preceding spiral to form a continuous belt.

Dividers

Devices used to separate a belt into longitudinal lanes. These may be fabricated by use of retaining edges, or by use of other special devices such as pins, coil springs, etc.

Double Balanced Weave

Fabric consisting of pairs of interlaced right and left hand spirals joined by crimped or straight rod connectors at the hinge point in a manner so that the pairs of spirals are interspaced by the adjacent spirals.

Double Rod Reinforced Weave (Dual or Duplex Weave)

Fabric consisting of pairs of either all right hand or left hand spirals, each pair being turned into the preceding pair, and reinforced with a rod through the hinging point of the spirals.

Double Weave (Duplex) Edges

Edge construction of double weave design extending in from both edges to a specified distance.

Drive Bars

Verticals that comprise the cage drum. Some units have a solid drum.

Duty Cycles

Number of times a belt goes in and out of a turn during one complete revolution.

Elongated Spiral Edge

Retaining edge fabricated by adding elongated spirals to the turned-up connectors or rod reinforcements.

Extended Rod Edge

Retaining edge formed by extending individual connectors or rod reinforcements, and turning them up at prescribed angles and spacings.

Extended Sidebar Chain

Retaining edge created by special attachments on the chain.

Filled Edges

Short lengths of wire (any shape) affixed between connectors.

Flanged Rollers

Used on terminal and break-over shafts to allow lateral belt movement.

Flat Seat™

A type of round wire belting with a flattened spiral that provides a flat surface for better product conveying and increased belt durability. The design of the hinge areas virtually eliminates belt design causes of stretch and camber.

Available in: plain, high carbon and galvanized steel; 1% and 3% chrome; stainless (T304, T316, T314, and T330); and more.

Flat Wire Belt

A continuous assembly of flat wire pickets connected by straight round wire inserted through positioned holes.

Mesh Designation* Length Opening Mesh Width Opening Notes
1 x 1 Approx. 1" constant Approx. 1"; may vary according to belt width  
½ x 1 Approx. 1" constant Approx. ½"; may vary according to belt width  
½ x 1 Modified Approx. 1" constant Approx. ½"; may vary according to belt width Addition of a filler rod through the center of the picket
½ x ½ Approx. ½" constant Approx. ½"; may vary according to belt width  

*The above are usually furnished in various weight classifications such as:

  • Standard 3/8" x .046" flat strip with 12 gauge (.105" diameter) clinched or welded connectors. Also furnished with 11 gauge (.120” diameter) clinched or welded connectors.
  • Heavy 1 x 1 and ½ x 1 belts are furnished in ½” x .0625” flat strip with 6 gauge (.192” diameter) welded connectors.

Flights (Lifts, Cleats)

Devices attached across the width of the belt at prescribed angles and intervals to position or retain the product on the belt. These may be fabricated from woven wire belting, wire mesh or formed metal shapes.

Interlocking Double Plate

Retaining edge consisting of a series of formed plates of tongue and groove design.

Interlocking Looped Edge

Retaining edge formed from extending ends of straight wire connectors or wires into interlocking loop design at prescribed angle to belt.

Intermediate Supports

Flat faced rolls 1 ½ - 2 ½” wide on 6-8 inches center to provide adequate support between fanged rollers.

Interwoven Weave

Fabric consisting of two conventional weaves in which one is woven into the other and sometimes reinforced by straight rods through the hinging points of the spirals.

Knuckled and Welded (or Brazed) Edge

Edge finish which is knuckled with ends of the wire forming the knuckle loop, and tack welded or brazed to the spiral to prevent opening of loops.

Knuckled Edge

Edge finish that is complete without welding. The edge is finished by bending back the ends of the spirals to form a loop, generally permitting each individual spiral to flex as a single link in the belt.

Ladder Edge

Edge finish formed by extending reinforcing wires or connectors beyond the spiral finish, and creating an edge in the appearance of ladder chain.

Ladder Edge, Welded

Edge finish similar to Ladder with loops tack welded or brazed.

Looped Edge (Wicket)

Retaining edge formed by extending pairs of connectors or rod reinforcements, and turning them up at prescribed angles and spacings.

Low Tension System

Units that use a cage to drive the belt, plastic or metal.

Mesh Designation

A letter or letters followed by a series of numerals used to identify a specific belt fabric.

  • The prefix letter or letters identify the basic construction.
  • The first numeral indicates the number of “turns” or “loops” per foot of width of the spiral or spirals.
  • The second numeral indicates the number of spirals, reinforcing rods, or connectors per foot of belt length.
  • The third numeral or pair of numerals indicates the gauge or gauges of wire used in the fabric. When two gauges are used in the fabric, the first numeral or pair of numerals designates the gauge of reinforcing rod or connector; the last numeral or pair of numerals designates the gauge of the spiral. In some instances, it is the practice to combine the numerals instead of separating them by means of a dash or diagonal.
  • Typical examples:
Prefix Basic Construction Mesh Designation
C Conventional Weave C36-59-16
R or RR Rod Reinforced Weave R24-24-12 or RR24-24-12
DR Double Rod Reinforced Weave DR36-18-12
D Duplex or Dual Weave D36-18-12
B Balanced Weave B18-16-10
B(s) Balanced Weave (Straight connector) B(s)72-24-16
DB Double Balanced Weave DB36-10-10
DB(s) Double Balanced Weave (Straight connector) DB(s)102-74-18/20
MS Multi-Strand Weave MS41-40-15/16
I Interwoven Weave I42-21-14/18
CB* Compound Balanced Weave CB3-30-72-14
CB(s)* Compound Balanced Weave (Straight connector) CB2(s)-42-62-14

*Note: Compound Balanced Weave is identified further, as to the number of connectors to join or disconnect the fabric, by a numeral immediately following the letter prefix.

When the wire used in the fabric is other than round, it is specifically identified.

Multi-Strand Weave

Fabric consisting of alternating right and left hand double spirals (side by side as single units) joined by straight connecting rods.

Off-Set

Degree change between where the belt comes into the system vs. the degree the belt exits system.

Offset Single Plate

Retaining edge similar to the Shingle Type except having a formed vertical step in each plate.

One-Directional Weave

Fabric consisting of conventional weave in which all spirals are of the same weave – either right or left.

Overdrive

Degree difference in cage speed vs. belt speed; critical to reducing tension in a cage system.

Racked

Term referencing when the belt is leading on the inner or outer edge.

Relieved and Reinforced Turned-up Fabric

Retaining edge similar to a relieved turned-up fabric except that hairpin reinforcements are inserted in the disconnected spirals.

Relieved Turned-up Fabric

Retaining edge similar to turned-up fabric edge providing flexibility by omitting connectors at prescribed spacings.

Rod Looped Edge

Edge finish similar to the ladder edge except that the reinforcing wires or connectors are extended and knuckled on themselves.

Rod Reinforced Weave

Fabric constructed in the same manner as conventional weave and reinforced by inserting a rod through the hinging point of the spirals.

Sectional Weave

Fabric consisting of alternating sections of right and left conventional weave usually joined by means of straight or crimped wires (rods).

Self-Driven, Positive Drive or Direct Drive

Belts that are driven by sprockets on outer edge drive links, no cage. Main OEMs are Alit and Technopool.

Self-Stacker Units

Known as Frigo units, belt stacks upon itself with no inner cage.

Shingle Single Plate

Retaining edge consisting of overlapping flat plates that have one edge of the plate on the outside of the preceding plate, and the other on the inside of the following plate.

Sprockets

A projecting tooth on a wheel or cylinder that engages with belt openings and causes the belt to move forward (positive drive). Sprockets are generally cast from carbon or stainless steel, and are furnished in sizes suitable for the application.

Stabilized Single or Double Plate

Retaining edge of basic plate with the addition of extensions in the form of tongues, tabs, caps or lugs to stabilize the edge.

Staggered Single Plate

Retaining edge consisting of alternating overlapped inside and outside flat plates.

Support Rails

Generally UHMW capped rails for the belt to ride.

Swing Wide

Belt tends to exit the cage following a path that is offset but parallel to the normal tangent line to the cage.

Take-Up Tower/System

Critical function in the overall operation of any spiral system for accumulation for belt elongation, expanding and contracting of belt length due to temperature changes, changes in load and operating conditions; maintains the correct tension to assure smooth belt operation.

Tangential Tension

The amount of tension pull on the outer edge of the belt. For tight radius belts, this is located where the center links on CamGrid and reinforcement bars on CambriLink Belts.

Tug Tester

CES unit designed to measure tangential tension by tier as belt cycles through the system to identify operating conditions.

Turned-up Fabric

Retaining edge formed by turning up a portion of the belt at a prescribed angle to the carrying surface.

Type 1 (Choker) Gripper Sling

Male/ Female Gripper Sling

Type 2 (Basket, Triangle/ Triangle) Gripper Sling

Female/ Female Gripper Sling

Wear Edges

Additional feature extended beyond the edge of the belt to act as a buffer.

Welded Edge

Edge finish completed by welding only. This edge is accomplished by forming an upset head on the ends of the connectors.

Wire

Wire belt fabrics are woven from a full range of ferrous, nonferrous and various nickel or chrome alloy wires. Such wires are furnished to certain restrictive physical and chemical properties within commercial tolerances. These wires are usually round in plain or coated finishes. Various shapes are also available.
 
 
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