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China MT-JC Series Drawworks: Heavy-Duty Hoisting System from Reliable 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. × Width) (mm) |
560×1304 |
640×1208 |
685×1160 |
770×1310 |
770×1310 |
770×1310 |
Bailing Drum Size (Dia. × Width) (mm) |
– |
– |
– |
400×1320 |
– |
400×1460 |
Bailing Drum Capacity (m) |
– |
– |
– |
5000 |
– |
7000 |
Lifting Shift |
4F |
4F+2R |
4F(6F)+2R |
4F+4R |
4F(6F)+2R |
4F+4R |
Speed of Cathead Shaft Shift |
2 |
2 |
– |
2 |
– |
2 |
Auxiliary Brake |
FDWS40 |
FDWS40 |
FDWS50 |
FDWS50 |
FDWS70 |
FDWS70 |
Dimensions (L×W×H) (mm) |
6000×2850×2380 |
6300×2628×2699 |
6760×2565×2881 |
7190×4335×3216 |
7100×2920×2945 |
7370×4335×3216 |
Weight (Kgs) |
27,300 |
28,000 |
34,203 |
49,600 |
46,050 |
55,809 |
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. × 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 (L×W×H) (mm) |
4700×2800×2552 |
6530×3192×2680 |
7000×3695×3010 |
6530×3192×2680 |
7920×3050×2680 |
Weight (Kgs) |
19,600 |
36,000 |
39,125 |
36,000 |
46,500 |
• 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 feature 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 international standards do your drawworks comply with?
All drawworks units are manufactured in accordance with API 7K international oilfield equipment standards and undergo strict inspection procedures to ensure safety and performance before delivery.
What brake systems are available for the drawworks?
The main brake system can be configured with either a band brake or a disc brake depending on rig requirements. Auxiliary braking options include eddy current brakes and Eaton water-cooled dynamic brakes, providing smooth and controlled deceleration under heavy-load conditions.
What is the difference between the Conventional Double-shaft and Compact Single-shaft drawworks?
The Conventional Double-shaft drawworks (JC30B–JC70D series) feature a traditional dual-shaft layout with cathead shaft and optional bailing drum, suited for standard drilling rigs. The Compact Single-shaft drawworks (JC30DB–JC70DB series) use a space-saving single-shaft design with dynamic braking, making them ideal for rigs with limited installation space.
Are third-party inspection reports available for your drawworks?
Yes. Third-party witness and inspection reports are available from internationally recognized certification bodies including Bureau Veritas (BV), CCS, ABS, and SJS, upon customer request.
What lubrication system is used in the drawworks?
The drawworks incorporates a forced lubrication system for the chain drive and involute spline-type transmission clutches. This design minimizes wear and significantly extends service life, especially under severe and continuous working conditions.
What is the maximum input power range available across your drawworks models?
Input power ranges from 440 kW for the JC30B entry-level model up to 1,470 kW for the JC70B and JC70D heavy-duty models, covering a wide spectrum of drilling rig horsepower requirements for both shallow and deep well operations.