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According to whether there is edge rubber: Molded edge belt and Cut edge belt.
According to the fabric type:
Polyester (EP) canvas conveyor belt (polyester belt, EP belt);
Nylon (NN) canvas conveyor belt (nylon belt, NN belt);
Cotton(CC) canvas conveyor belt(cotton belt, CC belt).
It is widely used in coal, mining, port, metallurgy, electric power, chemical industry, casting, building materials, cement and other industries and places that need high-speed and fast transportation of materials, and it is used to transport non-corrosive block, granular, powder materials, bulk materials or finished articles.
The general purpose fabric conveyor belt is made of multi-ply rubberized nylon (NN) canvas, polyester (EP) canvas or cotton(CC) canvas as the skeleton material, covered with coating rubber with different properties, and manufactured through calendering, molding, vulcanization and other processes.
Nylon (NN) conveyor belt has the advantages of light belt body, good elasticity, high strength, impact resistance and grooving. It is suitable for conveying materials in medium and long distance, large volume and high speed.
Polyester (EP) conveyor belt has the advantages of high initial modulus, good thermal stability of belt body size, high strength, small elongation and impact resistance. It is suitable for conveying materials in medium and long distance, large volume and high speed.
China GB/T7984 Standard
Germany DIN22102 Standard
US RMA Standard
UK EN ISO15236 Standard
Japan JISK6322 Standard
Australia AS1332 Standard
| Type |
Textile type |
Strength per ply
Min.(N/mm) |
Plies of fabric | Cover thickness(mm) | Belt width
(mm) |
Cover grade | |
| Top cover | Bottom cover | ||||||
|
EP belt |
EP-100 | 100 |
2-8 |
2-16 |
0-10 |
300-3400 |
Abrasion resistant Impact resistant Heat resistant Oil resistant Acid/alkali resistant Fire resistant Etc. |
| EP-125 | 125 | ||||||
| EP-150 | 150 | ||||||
| EP-200 | 200 | ||||||
| EP-250 | 250 | ||||||
| EP-300 | 300 | ||||||
| EP-350 | 350 | ||||||
| EP-400 | 400 | ||||||
| EP-500 | 500 | ||||||
|
NN belt |
NN-100 | 100 |
2-10 |
||||
| NN-125 | 125 | ||||||
| NN-150 | 150 | ||||||
| NN-200 | 200 | ||||||
| NN-250 | 250 | ||||||
| NN-300 | 300 | ||||||
| NN-400 | 400 | ||||||
| NN-500 | 500 | ||||||
| CC belt | CC56 | 56 | 3-12 | ||||
Main technical indexes of GB / T 7984-2013
| Item | Type | ||||
| NN、EP、CC | |||||
| Adhesion strength | Between coating and belt cores | Thickness of coating layer＞1.5mm
≥ N/mm |
3.5 | ||
| Thickness of coating layer 0.8~1.5mm
More than N/mm |
3.2 | ||||
| Between layers ≥ N/mm | 4.5 | ||||
| Tensile strength value of full thickness belt / N / mm | 160 ~ 3150 | ||||
| Elongation of longitudinal reference force of full thickness belt / % ≤ | 4 | ||||
|
Coating performance |
H
(sharp wear) |
D
(high wear) |
L
(moderate wear) |
||
| Breaking strength / MPa ≥ | 24 | 18 | 15 | ||
| Elongation at break / % ≥ | 450 | 400 | 350 | ||
| Abrasion / mm3 ≤
|
120 | 100 | 200 | ||
| Aging test（70℃×168h）
Median value of tensile strength and elongation |
It shall not be less than 75% of the corresponding value before aging.
|
||||
Main technical data of foreign standards
| Standard | DIN 22102 | AS1332、AS1333 | SANS1173、SANS1366 | ||||||||||||
| Category | W | X | Y | Z | A | E | F | M | N | S | F | A | C | M | N |
| Breaking strength MPa ≥
|
18 | 25 | 20 | 15 | 17 | 14 | 14 | 24 | 17 | 14 | 14 | 18 | 20 | 25 | 17 |
| Elongation at break % ≥
|
400 | 450 | 400 | 350 | 400 | 300 | 300 | 450 | 400 | 300 | 400 | 400 | 400 | 450 | 400 |
| Abrasion mm3 ≤ | 90 | 120 | 150 | 250 | 70 | — | — | 125 | 200 | 250 | 180 | 70 | 150 | 120 | 150 |
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