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MT-JC Series Drawworks for Drilling Rig - Heavy-Duty Hoisting System from China Suppliers and Factory
Product Specifications
Conventional Double-shaft Drawworks
| Model | JC30B | JC40B | JC50B | JC50D | JC70B | JC70D |
|---|---|---|---|---|---|---|
| Max input power (kW) | 440 | 735 | 1100 | 1100 | 1470 | 1470 |
| Max fast line tension (kN) | 210 | 280 | 350 | 350 | 487 | 487 |
| Dia. of drilling wire rope (mm) | 29 | 32 | 35 | 35 | 38 | 38 |
| Drum size (Dia. x Width) (mm) | 560x1304 | 640x1208 | 685x1160 | 770x1310 | 770x1310 | 770x1310 |
| Bailing drum size (Dia. x Width) (mm) | – | – | – | 400x1320 | – | 400x1460 |
| Bailing drum capacity (m) | – | – | – | 5000 | – | 7000 |
| Lifting shift | 4F | 4F+2R | 4F(6F)+2R | 4F+4R | 4F(6F)+2R | 4F+4R |
| The speed of cathead shaft shift | 2 | 2 | – | 2 | – | 2 |
| Auxiliary brake | FDWS40 | FDWS40 | FDWS50 | FDWS50 | FDWS70 | FDWS70 |
| Dimensions (LxWxH) (mm) | 6000x2850x2380 | 6300x2628x2699 | 6760x2565x2881 | 7190x4335x3216 | 7100x2920x2945 | 7370x4335x3216 |
| Weight (Kgs) | 27300 | 28000 | 34203 | 49600 | 46050 | 55809 |
Compact Single-shaft Drawworks
| Model | JC30DB | JC30DB | JC40DB | JC50DB | JC70DB |
|---|---|---|---|---|---|
| Max input power (kW) | 600 | 1100 | 800 | 1100 | 1470 |
| Max fast line tension (kN) | 210 | 350 | 280 | 350 | 450 |
| Dia. of drilling wire rope (mm) | 29 | 35 | 32 | 35 | 38 |
| Drum size (Dia. x Width) (mm) | 500×1000 | 770×1310 | 644×1208 | 770×1310 | 770×1434 |
| Auxiliary brake | Dynamic Braking | Dynamic Braking | Eddy current brake | Dynamic Braking | Dynamic Braking |
| Dimensions (LxWxH) (mm) | 4700×2800×2552 | 6530×3192×2680 | 7000×3695×3010 | 6530×3192×2680 | 7920×3050×2680 |
| Weight (Kgs) | 19600 | 36000 | 39125 | 36000 | 46500 |
Third party witness and inspection report available: Bureau Veritas (BV), CCS, ABS, SJS etc.
Compliance and Reliability
Every unit is manufactured in line with international oilfield equipment standards (API 7K) and is subject to strict inspection procedures to guarantee safety and performance. The drum is precision-grooved to ensure smooth spooling of the drilling line, while the low speed and high speed ends of the shaft are equipped with ventilated pneumatic clutches for efficient torque transmission. A water-cooled brake rim, treated with medium frequency induction hardening, offers extended durability and stable braking performance under continuous heavy-duty cycles. Transmission sprockets also undergo surface hardening to resist wear, further enhancing reliability during prolonged operation. These features enable the drawworks to meet the demanding requirements of deep drilling and high-load hoisting operations.
Product Features
- The drawworks incorporates forced lubrication for the chain drive and involute spline-type transmission clutches, reducing wear and extending service life under severe working conditions.
- The drilling contractors can configure the main brake system with either a band brake or a disc brake, depending on rig requirements. For enhanced safety in extended tripping or heavy-load lowering operations, auxiliary braking options include eddy current brakes or Eaton water-cooled dynamic brakes, providing smooth and controlled deceleration.
- These systems ensure reliable stopping power, reduced heat build-up, and safe operation even under extreme loads.
- With its combination of strong structural components, advanced braking systems, and high efficiency, the MTPM drawworks stands as a proven solution for drilling contractors seeking durability, adaptability, and operational safety.
Our drawworks with alloy steel shafts, water-cooled braking, forced lubrication, and multiple brake options, designed for safe and efficient drilling rig hoisting operations.
Product Details
Frequently Asked Questions
What manufacturing standards do these drawworks comply with?
Every drawworks unit is manufactured in strict accordance with the API 7K international oilfield equipment standards to guarantee safety, quality, and performance.
Which third-party inspection reports are available?
We offer third-party witness and inspection reports from leading certification bodies, including Bureau Veritas (BV), CCS, ABS, and SJS/SGS.
What options are available for the main and auxiliary braking systems?
The main brake system can be configured with either a band brake or a disc brake. For auxiliary braking under heavy loads, options include eddy current brakes or Eaton water-cooled dynamic brakes.
How does the lubrication system enhance the lifespan of the equipment?
The system features forced lubrication for the chain drive and the involute spline-type transmission clutches, which significantly reduces wear and tear under severe operating conditions.
What design elements contribute to the reliability of the shafts and drums?
The drawworks is designed with alloy steel shafts, a precision-grooved drum for smooth spooling, and surface-hardened transmission sprockets to resist wear during prolonged operations.