Trough roller is widely used in the environment with large dust and high corrosion in the open air, such as mine, power plant, steel plant, stone plant, cement plant, coal washing plant, salt plant, alkali plant, chemical fertilizer plant, wharf and other transportation places.
| B | A | L | L1 | H | J |
| 500 | 720 | 190 | 760 | 210 | 270 |
| 650 | 870 | 240 | 910 | 230 | 295 |
| 800 | 1070 | 305 | 1110 | 240 | 330 |
| 1000 | 1300 | 375 | 1350 | 300 | 400 |
| 1200 | 1550 | 455 | 1610 | 330 | 460 |
| 1400 | 1750 | 525 | 1810 | 350 | 495 |