Usage
Steel Cord Flame Resistant Conveyor Belts are suitable for conveying materials in flame resistant and anti-explosion occasions, especially in underground coalmines.
Characteristics
Except the advantages of conveying materials at the occasion of high strength, long distance and large load as the steel cord conveyor belt, the steel cord flame resistant conveyor belt shall meet the safety requirements below.
Steel cord composilion
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Characteristics
| Items | Indexes | ||
| Anti-static property | Average electrical resistance of both surfaces(Ω) | 3.0*10⁸ | |
| Drum friction | Surface temperature of drum(℃) | ≤ 325 | |
| Any test piece shall not show any sign of flame or glow | |||
| Burning on spirit burner (flame or glow) | Burning with cover rubber | Average duration of lame for six test pieces(S) | ≤ 3 |
| Duration of flame for any individual test piece(S) | ≤ 10 | ||
| Burning without cover rubber | Average duration of flame for six test piece(S) | ≤ 5 | |
| Duration of flame for any individual test piece(S) | ≤ 15 | ||
| Burning on propane burner | Length that is completely undamaged by flame(mm) | ≥ 250 | |
Standard Specifications
| Strength grade | Tensile strength | Cord pitch | Cord diameter | breaking force(Min.) | cover thickness |
| (KN/m) | (mm) | (mm) | (KN) | (mm) | |
| ST-500 | 500 | 10 | 2.5 | 5.5 | 4 |
| ST-630 | 630 | 10 | 2.8 | 7 | 4 |
| ST-800 | 800 | 10 | 3 | 8.9 | 4 |
| ST-1000 | 1000 | 12 | 3.7 | 12.9 | 4 |
| ST-1250 | 1250 | 12 | 4.2 | 16.1 | 4 |
| ST-1400 | 1400 | 12 | 4.3 | 18 | 4 |
| ST-1600 | 1600 | 12 | 4.7 | 20.6 | 4 |
| ST-2000 | 2000 | 12 | 5.3 | 25.6 | 4 |
| ST-2250 | 2250 | 12 | 5.3 | 29 | 4 |
| ST-2500 | 2500 | 15 | 6.8 | 40 | 5 |
| ST-2800 | 2800 | 15 | 7 | 44.8 | 5 |
| ST-3150 | 3150 | 15 | 7.8 | 50.5 | 5.5 |
| ST-3500 | 3500 | 15 | 8.2 | 56 | 6 |
| ST-4000 | 4000 | 15 | 8.8 | 63.5 | 6.5 |
| ST-4500 | 4500 | 16 | 9.7 | 76.3 | 7 |
| ST-5000 | 5000 | 17 | 10.9 | 91 | 7.5 |
| ST-5400 | 5400 | 17 | 11.3 | 98.2 | 8 |
| ST-6300 | 6300 | 19.5 | 12.8 | 130.4 | 10 |
| ST-7000 | 7000 | 19.5 | 13.5 | 142.4 | 10 |
| ST-7500 | 7500 | 21 | 13.8 | 166.7 | 10 |
| ST-8000 | 8000 | 21 | 14 | 180.9 | 10 |
| ST-9000 | 9000 | 21 | 14.8 | 203.2 | 11 |
| ST-10000 | 10000 | 21 | 15.5 | 225 | 11 |
Note: Cover thickness, cord diameter, and cord pitch can be manufactured according to customer’s requirements.
Rubber Covers
Flame resistance for mines: suitable for conveying flammable and combustible dangerous materials. The average value of burning test shall be less than 10s, and the single value shall be less than 15s. Besides, it has to pass the drum friction test and tunnel propane combustion test.
| Standard | Tensile strength Min.(Mpa) | Elongation at break(%) | Abrasion（mm³） |
| MT668 | 15 | 350 | 200 |
Flame Resistant Steel Cord Conveyor Belt for Underground Use
Can you accept small quantities?
Yes, accept small quantity, fast delivery
Do you have pre-shipment inspection procedures?
Yes, we always test the products before delivery.
Can I take samples for testing?
Yes, samples can be sent for testing before bulk ordering.
When is the delivery time?
Inventory orders within 7-15 days, for oem and odm orders, the specific time depends on the actual situation.
What are the terms of payment?
Wire transfer or letter of credit, Western Union, Alipay, etc.
Flame Resistant Steel Cord Conveyor Belt for Underground Use
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