Complaint
belt conveyor return idler Fire resistance HDPE roller for coal mine industry
Fire Resistance & Anti-static
Low Noise emmision
Patented Water & Dust Proof Sealing System
Light Weight, easy to carry and replace
Corrosion-resistance
Perfect for
Undergound Coal Minning;
Fertilizer Plant;
Other enclosed working environments.
Standard: CEMA / JIS / DIN / ISO
Roller Diameters:
| Φ63.5 | Φ76 | Φ89 | Φ102 |
| Φ108 | Φ114 | Φ127 | Φ133 |
| Φ140 | Φ152 | Φ159 | Φ165 |
| Φ178 | Φ191 | Φ194 | Φ219 |
Roller Performance:
No. | Test items | Unit | Results |
1 | T. I.R | mm | ≤0.2 |
2 | Axial displacement | mm | ≤0.4 |
3 | Axial displacement after falling | mm | <1.2 |
4 | Axial load | KN | >15 |
5 | Rolling resistance | N | ≤2.5 |
6 | Water spay running test | g | 0 |
7 | Underwater running test | g | 5 |
8 | Coefficient of friction | - | ≤0.1 |
9 | Noise Level | dB | ≤55 |
Samples: 360x50x8mm (6pcs) Φ108x380mm (3pcs)
Acceptance Criteria: MT/T 1019-2006
Tested by: Test Center of China Coal Research Institute
No. | Test items | Unit | Results | |
1. | Fire Resistance | Average duration of flaming occur | s | 2.23 |
Maximum duration of flaming occur | s | 2.41 | ||
Average duration of glowing | s | 0 | ||
Maximum duration of glowing | s | 0 | ||
Maximum measured charred length | mm | 75 | ||
2. | Electrical Resistance | Average value | Ω | 3.1x107 |
