Hot Products
0102030405
Heavy-Duty MT-JC Series Drawworks for Drilling Rigs - Reliable Hoisting Solution by 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. × 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) |
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. × 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) |
19600 |
36000 |
39125 |
36000 |
46500 |
🔍 Third-Party Inspection Available: Bureau Veritas (BV), CCS, ABS, SJS, and other internationally recognized certification bodies.
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.
Product Details
Frequently Asked Questions
What international standards do your JC drawworks comply with?
All JC series drawworks are manufactured in accordance with API 7K, the internationally recognized standard for drilling and well-servicing equipment. Each unit undergoes strict quality inspection procedures before delivery. Third-party witness inspections are also available from bodies such as Bureau Veritas (BV), CCS, ABS, and SJS.
What is the difference between the Conventional Double-shaft and Compact Single-shaft drawworks?
The Conventional Double-shaft drawworks (JC30B to JC70D series) features a traditional dual-shaft layout with optional bailing drum configurations, suitable for a wide range of rig setups. The Compact Single-shaft drawworks (JC30DB to JC70DB series) adopts a streamlined single-shaft design with a smaller footprint, making it ideal for space-constrained rig installations while still delivering competitive power and tension ratings.
What auxiliary braking options are available for the JC drawworks?
Depending on the model and application, auxiliary braking options include eddy current brakes and Eaton water-cooled dynamic brakes (FDWS series). These systems provide smooth, controlled deceleration during extended tripping or heavy-load lowering operations, reducing heat build-up and ensuring safe operation under extreme loads.
How is the drum designed to ensure reliable wire rope performance?
The drum is precision-grooved to ensure smooth and even spooling of the drilling line. The brake rim is water-cooled and treated with medium frequency induction hardening, which provides extended durability and stable braking performance even under continuous heavy-duty operating cycles.
Can the main brake system be customized to suit different rig requirements?
Yes. Drilling contractors can configure the main brake system with either a band brake or a disc brake, depending on specific rig requirements and operational conditions. This flexibility allows the drawworks to be optimized for various drilling programs, from standard rotary drilling to deep and high-load hoisting operations.
What lubrication system is used in the JC drawworks to extend service life?
The drawworks incorporates a forced lubrication system for the chain drive and involute spline-type transmission clutches. This ensures consistent lubricant delivery under all operating conditions, significantly reducing component wear and extending the overall service life of the equipment under severe working environments.