Sidewall

Forech is a leading manufacturer of Fabric and Steel Cord re-enforced Rubber Conveyor Belts that offers a complete package of products including conveyor accessories, to operate a Conveyor System efficiently and economically. Our management team has over 40 years of experience in delivering quality conveyor products, both in the domestic as well as in export market globally.

With modern manufacturing units in Sonepat, Haryana and Cheyyar (near Kanchipuram), Tamil Nadu; Forech is also uniquely positioned to serve all regions in India with unparalleled proximity to markets. Our manufacturing unit in Cheyyar also produces Steel Cord Belting in technical collaboration with Dunlop Belting Products, South Africa.

When designing a conveyor system; ensuring efficiency of carrying bulk materials is critical. In addition, the nature of terrain and space constraints within a particular site can make regular conveyor systems impossible to run.

Forech’s unique Sidewall Belts allow end users to carry bulk materials at high inclines and angles up to 90 degrees. This allows material to be carried where space requirements are critical; as well as increase overall belt efficiency and through put.

Steel cord belt in use

Applications

Forech’s High Angle belts can be used in multiple industries to successfully meet space and efficiency constraints. These industries include:

  • Coal and Wood Chips Fired Power Stations
  • Underground Mining (coal and ore)
  • Ship Loading and Unloading, Ship to Ship loading
  • Sand preparation in foundry plants
  • Slope conveying in open-pit mining
  • Steep angle carrying in road construction machines

Applications

Cold Vulcanised Belts for Operating Ranges between 60-70°C

As High Angle belts usually operate in enclosed conditions and deliver hot material, usual temperature ratings applied to flat rubber conveyor belts cannot be applied. Increased temperature exposure over the life of the belt results in accelerated ageing and a reduction in belt elasticity which adversely effects the belt life.

The effective belt operating temperature therefore determines operating life of the belt.

For standard belt constructions, please refer to the chart below for average belt life at different continuous belt operating temperatures.

Temperature Range Average Belt Life
40-50°C 2-3 years
50-60°C 1-2 years
60-70°C 0.5-1 year

The above temperature indications are not the temperature of the material to be conveyed but the temperature the sidewall belt itself.

Hot Vulcanised Belt for Operating Range between 80-125°C

If the operating temperature is consistently above 70° C, as in the case of heat resistant applications, Forech recommends, use of Hot Vulcanised high angle belts. This is because at high operating temperatures, the cold bonding adhesives used for both the cleats, sidewalls and the belt-splice start to break down. To ensure trouble free service in such applications Forech offers sidewall belts with the cleats and the sidewall in heat resistant quality which are fixed on the base belt with hot vulcanisation.

The operating temperatures listed above for standard quality can be increased by 30°C if a Heat Resistant belt is used.

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Belt Construction

One of the key advantages of Forech’s High Angle belting is the use of cross-rigid base belts. These specially tailored belts can be deflected from the horizontal to a perpendicular incline and back again without any bowing or sagging in the belt.

This is achieved through custom-made fabric constructions, a special belt composition and our in-house production procedure. This ensures that our High Angle Belts have both a long life and can withstand operating pressures at high inclines.

Standard Base Belt Constructions

Type FXE

Light duty applications with non re-inforced sidewalls and cleats.

Type FXE-T

The type FXE-T has one cross rigid member in the top cover of the belt with standard 3/5 ply carcass. Also available with Steel cross stabilized breaker.

Type FXE-B

The type FXE-B has one cross rigid member in the bottom cover of the belt with standard 3/5 ply carcass. Also available with Steel cross stabilized breaker.

Type FXE-TB

The type FXE-TB has one cross rigid member each in the top and the bottom cover of the belt with standard 3/5 ply carcass. Also available with Steel cross stabilized breaker.

Type FST-SBTB

The type FST-SBTB has steel cord members each in the top and the bottom cover of the belt with steel cord carcass.

Recommended for heavy duty applications only requiring belt tensions of above 1000 Kn/m

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Standard Range of Sidewalls

Sidewall Type Height
(Swh)
mm
Base Width
(bw)
mm
Pitch
(P)
mm
Weight
Standard Quality
Kg/m
N
Non Fabric
re-inforced
60 50 40 1.60
80 50 40 1.80
100 50 40 2.10
120 50 40 2.30
S
Fabric
re-inforced
120 50 40 2.40
160 78 63 4.10
200 78 63 5.20
240 78 63 6.20
250 75 60 6.60
280 75 60 7.50
300 75 60 9.00
400 100 80 18.50
160GB 75 60 4.50
200GB 75 60 5.50
240GB 75 60 6.40
250GB 75 60 6.60
280GB 75 60 7.50
300GB 75 60 9.00
  • S type sidewalls are with fabric re-inforcement.
  • Sidewalls that are not shown as fabric re-inforced can be manufactured with fabric re-inforcement on request.
  • All components of sidewall belts such as Base belts, Sidewalls and Cleats are also available separately.
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Standard Range of Cleats

Cleat Type Height
(Fht)
mm
Base Width
(bw)
mm
Weight
Standard Quality
Kg/m
T 40 70 1.00
50 70 1.25
60 100 1.30
C 70 110 2.50
110 110 2.90
TCF 90 100 2.60
110 110 3.40
140 150 5.00
180 150 5.75
220 150 7.55
TCF GB 140 150 5.00
180 150 7.35
230 150 9.75
260 160 11.90
280 173 13.90
TCFW 280 270 22.00
360 270 25.50
  • TCF type cleats are with fabric re-inforcement
  • Cleats that are not shown as fabric re-inforced can be manufactured with fabric re-inforcement on request.
  • All components of sidewall belts such as Base belts, Sidewalls and Cleats are also available separately.

Causes and Cures

Belt bowed

Avoid telescoping belt rolls while storing them, and avoid storing in damp locations. A new belt should straighten out when installed, or it must be replaced

Belt improperly spliced

If improperly spliced, remove belt splice and make a new splice. Set up a regular inspection schedule

Belt speed too fast

Reduce belt speed

Belt strained on one side

Allow time for a new belt to settle in. If the belt does not settle in properly or is not new, remove strained section and splice in a new piece.

Breaker strip missing or inadequate

Install a fresh belt with proper breaker strip

Take up tension too high

Recalculate tension and adjust the take up accordingly. Reduce take up tension to point of slip, and then tighten slightly.

Counterweight too light

Recalculate the counterweight required and adjust accordingly

Damage by abrasives, acid, chemicals, heat, mildew, oil

Use belt with cover designed for specific condition. For abrasive materials working their way into cuts, make spot repairs with repair patches. Don’t over lubricate idlers

Drive underbelted

Recalculate maximum belt tensions and select correct belt.

Edge worn or broken

Remove badly worn out section and splice in a new section

Excessive impact of material on belt

Use correctly designed chutes and baffles. Install loading idlers. Where possible, load fines first.

Excessive tension

Recalculate and adjust tension.

Frozen idlers

Free idlers, lubricate them and improve maintainence.

Idlers or pulleys out of square with center line of conveyor

Realign, and if possible install limit switches for greater safety.

Idlers improperly placed

Relocate idlers or insert additional idlers to support the belt

Improper loading, spillage

Feed should be in direction of belt travel and at belt speed, centered on the belt. Control flow with feeders, chutes, skirtboards

Improper storage of handling

Ensure that belts are stored properly prior to installation

Insufficient traction between belt and pulley

Lag drive pulley. In wet conditions, use grooved lagging. Install correct cleaning devices for safety.

Material between belt and pulley

Use skirtboards properly. Remove accumulation and improve system maintenance.

Material build-up

Remove accumulation. Install cleaning devices

Pulley lagging worn

Replace worn pulley lagging. Use grooved lagging for wet conditions.

Pulleys too small

Use larger diameter pulleys

Relative loading velocity too high or too low

Adjust chutes or correct belt speed.

Side loading

Load in direction of belt travel, in center of the conveyor

Skirts improperly placed

Install skirtboards so they don’t rub against the belt