Multi Ply Rubber Conveyor Belt
An EP (polyester-polyamide) fabric-plied belt built as the workhorse of bulk material handling — mining, harbour, coal, metallurgy, and chemical plant transfer over short and medium distances. The same rubber-cover, multi-ply construction is also the base platform we customize into oil/fat resistant, acid-alkali, heat resistant, cold resistant, flame retardant, and abrasion resistant belting.
The standard belt behind most bulk material lines
A multi-ply conveyor belt is built from alternating layers of EP (polyester warp, polyamide weft) fabric bonded between rubber covers — the fabric plies carry the tension load, the rubber covers protect against wear, weather, and impact. It's the lowest-cost, most widely applicable conveying method for bulk cargo over short and medium distances, which is why it's the default specification across mining, port and harbour transfer, coal handling, metallurgy, and chemical plant material movement. Because the ply construction is the same across our full belting range, this base rubber-cover platform is also what we customize into specialty belting: oil and fat resistant, acid and alkali resistant, heat and high-temperature resistant, flame retardant, cold resistant, and abrasion resistant covers all start from this multi-ply carcass. If your application doesn't need a specialty cover, this is the belt to specify.- Fabric typeEP — polyester (warp) / polyamide (weft)
- Ply count2, 3, 4, 5, or 6 ply
- Cover thicknessUpper 2–12mm, lower 1–5mm
- Belt width350–2200mm
- Roll lengthUp to 300m
- Typical dutyShort & medium-distance bulk transport
One carcass, built for whatever the cover needs to resist
Specify this multi-ply base with the cover treatment that matches your operating environment.Oil & fat resistant
For feed, oilseed, and rendering by-product handling.
Acid & alkali resistant
For fertilizer, sea salt, and chemical plant contact duty.
Heat / high-temp resistant
For sinter, coke, clinker, and hot casting transfer.
Flame retardant
For underground mining and enclosed-space regulatory duty.
Cold resistant
For outdoor freezing-region and cold storage operation.
Abrasion resistant
For sand, ore, and crushed aggregate high-wear duty.
Standard general-purpose
No specialty exposure — this base construction on its own.
Custom combinations
Two or more resistances combined where the process demands it.
EP fabric strength series reference
Tensile rating (N/mm) by ply count. Use this to match belt strength to your conveyor length, incline, and loading — higher EP series and higher ply counts both raise the rated tension.| Series | 2 ply | 3 ply | 4 ply | 5 ply | 6 ply |
|---|---|---|---|---|---|
| EP-80 | 160 | 240 | 320 | 400 | 480 |
| EP-100 | 200 | 300 | 400 | 500 | 600 |
| EP-150 | 300 | 450 | 600 | 750 | 900 |
| EP-200 | 400 | 600 | 800 | 1000 | 1200 |
| EP-250 | 500 | 750 | 1000 | 1250 | 1500 |
| EP-300 | 600 | 900 | 1200 | 1500 | 1800 |
| EP-350 | — | 1050 | 1400 | 1750 | 2100 |
| EP-400 | — | — | 1600 | 2000 | 2400 |
| EP-500 | — | — | 2000 | 2500 | 3000 |
Cover grade by international standard
Cover rubber is quoted to whichever standard your project specifies. Reference grades across the four most common:| Grade | Tensile (MPa) | Elongation (%) | Abrasion (mm³) |
|---|---|---|---|
| Z | 15 | 350 | 250 |
| W | 18 | 400 | 90 |
| Y | 20 | 400 | 150 |
| X | 25 | 450 | 120 |
| Grade | Tensile (MPa) | Elongation (%) | Abrasion (mm³) |
|---|---|---|---|
| N17 | 17 | 400 | 200 |
| M24 | 24 | 450 | 125 |
| Grade | Tensile (MPa) | Elongation (%) |
|---|---|---|
| RMA-I | 17 | 400 |
| RMA-II | 14 | 400 |
| Grade | Tensile (MPa) | Elongation (%) | Abrasion (mm³) |
|---|---|---|---|
| A | 18 | 400 | 70 |
| C | 20 | 400 | 150 |
| M | 25 | 450 | 120 |
| N | 17 | 400 | 150 |
Built for buyers running everyday bulk transport
If your material and environment are within normal limits — no extreme chemical, temperature, or oil exposure — this is the belt category that covers the job at the lowest delivered cost.- Open-pit & underground mining haulage
- Port & harbour bulk cargo transfer
- Coal handling & preparation plants
- Metallurgy & steel plant material transfer
- Chemical plant general bulk conveying
- Quarry & aggregate stockpiling
- Grain & agricultural elevator transport
- Cement & construction material handling
- Recycling & general waste transfer
- Short-to-medium haul in-plant conveying
Common questions
What does the EP series number mean?
EP-80, EP-100, EP-150, and so on refer to the tensile strength per ply of the fabric — a higher number means a stronger single ply, which lets you hit a required overall tensile rating with fewer plies and a thinner, lighter belt.
How do I choose ply count versus EP series?
Both raise total tensile strength, but ply count also adds thickness and troughability, while a higher EP series adds strength without extra plies. For long conveyors or high tension runs we typically recommend fewer plies of a higher EP series over many plies of a lower one.
Which cover standard should I specify — DIN, AS, RMA, or SANS?
Whichever your project documentation already calls for; if there's no existing standard, DIN 22102 is the most commonly requested reference internationally, and we'll match grade (Z/W/Y/X) to your abrasion and tensile needs.
Can this be upgraded to a specialty resistant belt later?
The specialty resistances (oil, acid-alkali, heat, cold, flame retardant, abrasion) are built into the cover compound at manufacture, so they need to be specified up front rather than added after. Tell us your operating conditions and we'll recommend the right cover from the start.
What information do you need to quote a multi-ply belt?
Belt width, required tensile rating or conveyor length/incline/load so we can calculate it, ply count or EP series preference, cover thickness, and any specialty resistance needed.