Series of Drawworks
Series of drawworks for drilling and workover rig hoisting operations, including main and sand drum configurations for tripping tubulars, running casing and handling downhole tools. Model selection should be matched to the required power, pull, rope capacity, braking and working conditions.
Designed around the operating requirement.
Product-specific advantages depend on the selected model and configuration. Contact our technical team for a matched review.
| Product | Series of Drawworks |
|---|---|
| Product line | Assembly Parts |
| Item | technical parameter | |||||
| JC08 | JC12 | JC18/11 | JC21/11-C | JC28/11 | ||
| kW Input power | 150 | 180 | 400 | 450 | 600 | |
| Main drum | kN Max. fast pull (the second layer ) | 80 | 120 | 180 | 210 | 280 |
| mm Drum dia. x length | Φ345×590 | Φ356×912 | Φ450×912 | Φ450×912 | Φ580×1012 | |
| mm Brake drums (disc) dia. x length (thichness) | Φ810×210 | Φ970×260 | Φ1070×310 | Φ1070×310 | Φ1168×267 | |
| mm Applicable line dia. | 22 | 22 | 29 | 29 | 32 | |
| rpm Max. rotary speed | 450 | 450 | 450 | 450 | 450 | |
| Cooling type of brake drum | Air cooling | Air cooling | Forced circulation water cooling | Forced circulation water cooling | Forced circulation water cooliong | |
| Sand drum | m Rope capacity | 2500m (9/16in) | 2500m (9/16in) | 2000m（φ16mm） | ||
| mm Drum dia. x length | Φ345×912 | Φ345×912 | Φ360×960 | |||
| mm Brake drum dia. x length | Φ970×210 | Φ970×210 | Φ970×210 | |||
| kN Max. pulling force(the second layer) | 110kN | 110kN | 110kN | |||
| rpm Max. rotary speed | 450 | 450 | 450 | |||
| model parameter | YJC03 | YJC08 | YJC08A | YJC08B | YJC12 | YJC12A | YJC12B | YJC12C |
| m Rope capacity | 1200 | 2000 | 2500 | 2000 | 2500 | 2700 | 2500 | 3000 |
| kN Max. lifting force at min. diameter | 30 | 60 | 80 | 80 | 120 | 120 | 120 | 120 |
| mm Wireline dia. | 13 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| mm Drum dia. x length | Φ324×590 | Φ345×910 | Φ360×561 | Φ360×527 | Φ380×966 | Φ380×966 | Φ380×966 | Φ410×966 |
| model parameter | ZJC40 | ZJC60 | ZJC75 | double drum | |
| Wire drum | Cable drum | ||||
| （mm） Drum dia. | f200 | f150 mm | f210 | ≥f200 | ≥f300 |
| （mm） Drum body length | 396 | 396 | 504 | 144 | 252 |
| （mm） Dia. of brake rim | f390 | f390 | f390 | f505 | f505 |
| Drum capacity (wireline dia.) | ≥4500 m（f2.8mm） | ≥6500 m（f2.4mm） | ≥7500 m（f3.2mm） | ≥6000m（f2.4mm） | ≥6000m（f2.4mm） |
Where this equipment is used.
Application suitability depends on the equipment configuration and field conditions. Contact our technical team for guidance.
Send the operating requirement.
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryFrequently asked about this equipment.
The following questions address common equipment selection and operating considerations.
What is the core function of Drawworks in oilfield operation?
Drawworks is the core hoisting equipment of drilling and workover rigs. It is mainly responsible for tripping drill strings, running casing, controlling drilling pressure and lifting downhole tools. It determines the operating efficiency and safety of the entire wellbore construction, being an indispensable key component of oilfield hoisting systems.
What are the differences between different series of drawworks?
Mechanical drawworks feature simple structure and low cost, suitable for conventional shallow and medium well workover; DC electric drawworks have stable speed regulation performance for medium-deep well drilling; AC VFD drawworks achieve higher precision and intelligent control, adapting to ultra-deep well and complex high-pressure working conditions.
How does the drawworks ensure operation safety during heavy-load hoisting?
The whole series adopts dual-brake safety design, equipped with reliable main brake and electromagnetic eddy current auxiliary brake. It supports stable load holding, speed limit control and emergency braking. Matched with overload protection and interlock monitoring functions, it effectively prevents load runaway, string dropping and other safety accidents during operation.
Can the drawworks adapt to extreme harsh oilfield environments?
Yes. All series products adopt full-climate optimized design, with anti-corrosion, dust-proof and weather-resistant protective structure. Core components resist low-temperature cold and high-temperature aging, realizing stable continuous operation at -40℃ ~ +55℃, fully adapting to desert, Gobi, mountain and high-altitude oilfield working conditions.
Can parameters and configurations be customized for special working conditions?
Yes. We support personalized customization of driving mode, power grade, brake configuration, intelligent control function and environmental protection accessories, matching different well depth grades, working condition complexity and oilfield safety operation specifications.
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