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PVC / PVG Conveyor Belts


Range of Products


Jonson Fire Resistant belting has a proven track record of superior service in coal mining and other similar applications where the high, continuous output depends largely on the performance and reliability of the belt. Jonson Fire Resistant, designed primarily for use in underground and other potentially hazardous situations, meets and in many cases, exceeds the fire-resistance and anti-static requirements of all worldwide safety standards. Through its PVC compounds, customizable cover thickness and its solid woven carcass, making the belt ideal for conveying coal, potash, phosphate, fertilizer, clay, gypsum and salt. It is also suited for use in the timber industry.

PVC Table

Belt Designation Warp breaking Strength Warp breaking Strength Cover Thickness Belt Thickness* Belt Weight* Minimum Recommended Drum Diameters
lbs/in kn/Mtr v/Mtr mm mm kg/sq.m high tension(mm) low tension(mm)
2500 438 265 1.0×1.0 7.5 9.5 315 250
3500 610 265 1.0×1.0 8.0 10.5 400 315
4000 700 265 1.0×1.0 8.3 10.9 400 355
4500 788 352 1.0×1.0 8.5 11.2 500 355
5000 875 352 1.0×1.0 8.9 11.5 500 355
6000 1050 352 1.0×1.0 9.4 12.0 630 400
6500 1140 352 1.0×1.0 9.5 12.5 630 400
7000 1225 352 1.0×1.0 10.5 14.0 750 450
8000 1400 425 1.0×1.0 11.0 15.0 750 450
9000 1576 425 1.0×1.0 12.0 15.5 800 600
10000 1751 455 1.0×1.0 13.0 16.5 800 600
11000 1926 455 1.0×1.0 13.5 17.0 1000 750
12000 2100 455 1.0×1.0 14.5 18.0 1000 750
14000 2452 455 1.0×1.0 15.5 19.0 1250 800
15000 2625 455 1.0×1.0 16.5 20.0 1250 800

PVG Table

Class Rating Min Tensile Strength N/mm (Warp) Min Tensile Strength N/mm (Weft) Carcass Thickness Carcass Weight Cover Grade Recommended Thickness mm (PVG) Min Pulley Dia mm
680 680 265 6.5 8.5 1.5 x 1.5 400
800 800 320 5.9 9 1.5 x 1.5 500
1000 1000 350 7.5 9.7 2.0 x 2.0 630
1250 1250 350 8.5 11 2.0 x 2.0 750
1400 1400 450 9 11.5 2.0 x 2.0 750
1600 1600 450 9.5 12.3 2.0 x 2.0 800
1800 1800 450 9.5 12.3 2.0 x 2.0 800
2000 2000 450 10.5 13.6 3.0 x 3.0 1000
2500 2500 420 12.5 14.5 3.0 x 3.0 1200
3100 3100 420 17 17 3.0 x 3.0 1500

Technical Information



The table shows nominal figures for minimum warp & weft breaking strengths, belt thickness & weight for a selection of belt types, based on 1mm x 1mm PVC covers on either side. For every additional 1mm PVC, add 1.25kg/sq.mtr for PVC covers. Nominal values with 1+1 PVC covers.


Product Quality


  • All-synthetic high tenacity centre warp yarns, for strength and minimum elongation.
  • All-synthetic pile warp yarns, to protect against impact damage, improve adhesion and give superb fastener bedding.
  • Composite weft yarn, to give optimum transverse rigidity and superb fastener holding.
  • Woven selvedge to reduce edge-ware and improve belt life.
  • Complete vacuum impregnation and consolidation of PVC compound through solid woven fabric, to improve tear strength and to reduce ingress of moisture.
  • Special PVC cover, to reduce abrasion and improve carrying capacity through the life of the belt.

Product Advantages


  • Homogenous and integrated belt structure.
  • High tear/rip resistance.
  • High modulus belt, for low operating elongation.
  • Vastly superior fastener holding.
  • Optimum longitudinal flexibility, to allow use of lower pulley diameters.
  • Woven selvedge, to reduce rate of edge wear.
  • Trough ability, designed for belt to perfectly seat on the idlers.

Application of PVC/PVG


Widely used in fiery mines i.e. underground coal mines, power stations, chemical and metallurgy industries


Quality


  • Properties : Excellent flame, Anti-static characteristics for fiery applications
  • Strength : High tensile strength in proportion to weight
  • Carcass : Good integrity, no delamination and excellent resistance to impact

The Advantages of JONSON PVC/PVG belts



Complete in-house manufacturing - from yarn preparation, fabric weaving, compound mixing to belt finishing - to ensure total process and quality control at each step of manufacturing activity. Each belting roll is tested for physical, fire retardant and anti static properties - one of the few manufacturers who can claim to do 100% tests on all belts. One of the best conveyor belting test facilities where a fully equipped test laboratory conducts test of all incoming yarns and chemicals, as well as on finished product, including tests for flame, static conductivity drum-friction, limited oxygen index, etc. In addition, physical tests like tensile strength, elongation, tear, adhesion, fastener holding, trough ability etc. are also conducted as routine tests.