- Drawworks Components In Accordance With API 7K
- Drum With Lebus Groove.
- Main Brake: Hydraulic Disc Brake
- Auxiliary Brake: Eddy Current Brake or EATON
- Brake
- Chain Transmission Structure
- Drawworks Rating: 1000~4000HP
| Drawworks（DC） | JC40D | JC50D | JC70D | JC80D | JC90D |
| Rated input power kw(HP) | 735kw (1000hp) | 1100kw (1500hp) | 1470kw (2000hp) | 2210kw (3000hp) | 2210kw (3000hp) |
| Qty. x motor power | 2x580kw | 2x800kw | 2x800kw | 3x800kw | 3x800kw |
| Rated speed of motor rpm | 880/970 | 970 | 970 | 970 | 970 |
| Drum（dia. x length）mm | 640×1139 | 685×1245 | 770×1361 | 914×1656 | 914×1556 |