- Main drum Lebus grooved for API drill line
- The drawworks is furnished with roller bearings and alloy steel shafts.
- Drive chains and sprockets lubricated by pressurized oil
- The rim surface and Sprocket teeth contours are medium frequency induction hardened, having the good abrasion resistance and long service life.
- All gear shift clutches are of involute-spline type.
- Expendable parts have the good interchangeability.
- ​Conform to API Spec 8A/8C, and API monogram stamped
Disk Break System:
- ​Conventional band type brake equipped can be equipped with all the models of the drawwoks, and as option
- And optionally, reliable hydraulic disc brake systems are available can be equipped with the drawworks with capacities of 280HP to 2100HP.
- The main components of the disc brakes normally contain:
- Brake disc plates
- Safety brake calipers
- Operation brake calipers Individual hydraulic power source station with power backup and operation stick equipped with disc brake system.
Product Specifications For Drawworks
Model | JC10B | JC30 | JC40 | JC50 | JC70 | |
Nominal drill depth (41/2DP) | m | 1,000 | 3,000 | 4000 | 5,000 | 7,000 |
ft | 3,280 | 10,000 |
| 16,500 | 23,000 | |
Max input power | kW | 210 | 400 |
| 1,100 | 1,470 |
HP | 280 | 544 | 1000 | 1,500 | 2,000 | |
Max pull of fast line | kN | 80 | 200 | 280 | 350 | 450 |
lbs | 18,000 | 45,000 |
| 78,700 | 18,100 | |
Wire line diameter | mm | 22 | 29 |
| 35 | 38 |
in | 7/8 | 1 1/8 | 1 1/8 | 1 3/4 | 1 1/2 | |
Drum size (dia. x width) | mm | 400x650 | 473x1,000 |
| 770x1,460 | 770x1,310 |
in | 15.7x25.6 | 18.6x39.4 |
| 30.3x57.5 | 30.3x57.5 | |
Brake rim size | mm | 1,100x230 | 1,500disc |
| 1,370x270 | 1,370x270 |
in | 43.3x9 | 59 brake |
| 50x10.6 | 5.4x10.6 | |
Brake lining contact deg. | 273 |
| 280 | 280 | ||
Sand drum size (dia x w) | mm |
| 400x1320 | 400x1460 | ||
in |
| 15.7x52 | 15.7x57.5 | |||
Sand drum capacity | M |
| 5,000 | 7,000 | ||
(ft) |
| 16,500 | 23,000 | |||
Hoisting speed gear | 2 | 5 |
| 4 | 4 | |
Rotary speed gear | 2 | 5 |
| 2 | 2 | |
Cathead shaft speed | 2 |
| 2 | 2 | ||
Auxiliary brake | FDWS30 |
| SDF45 | FDWS70 | ||
Overall dimensions | in | 291x98x95 | 543x134x98 |
| 302x111x120 | 302x111x127 |
Approx. weight | kg | 9,819 | 35,500 |
| 38,476 | 44,000 |
lbs | 21,600 | 78,100 |
| 84,600 | 96,800 | |