The JC series drawworks span input power from 150 kW on the JC08 to 600 kW on the JC28/11, with maximum fast-line pull on the second drum layer from 80 kN to 280 kN. Main drums take 22, 29 or 32 mm line and turn 450 rpm across the range, with drum diameters growing from 345 by 590 mm on the JC08 to 580 by 1012 mm on the JC28/11, and brake cooling stepping from air cooling on the smaller units to forced water circulation on the large builds. Auxiliary YJC and ZJC drums extend the range to rope capacities of 1200 to 3000 m and wireline drums up to 7500 m, covering the main hoist, the sand drum and the wireline line on one drawworks family.
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） |
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryQuestions about the drawworks series start with input power, drum capacity and the rig classes they serve.
The JC series drawworks is the hoisting unit of drilling and workover rigs: it trips the drill string, runs casing, holds back during drilling and lifts downhole tools. Input power spans 150 kW on the JC08 to 600 kW on the JC28/11, with maximum fast-line pull on the second drum layer from 80 kN to 280 kN on 22, 29 or 32 mm line at 450 rpm, which sets the hoisting envelope the mast and hook are matched to.
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.
Each drawworks carries a primary service brake and an electromagnetic eddy-current secondary brake, so holding, speed control and emergency stop are on separate circuits. Overload protection and interlock monitoring trip the drive before the hoist reaches its rating, which is the protection that prevents runaway and dropped string on heavy pulls.
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.
Yes. The configuration is settled against the rig class before the order: input power (JC08 at 150 kW through JC28/11 at 600 kW), drum and line size, brake cooling (air or forced water circulation), and the auxiliary sand and wireline drums are matched to the well programme, then written into the quotation and the factory test report.
Commercial terms are confirmed in the quotation for the exact configuration, quantity and destination.
Built at the Jingzhou plant under ISO 9001:2015 quality management; each JC drawworks is bench-tested with the drum turned at the 450 rpm rating and the main and auxiliary brakes checked for holding against a simulated pull before dispatch. Applicable standards and certificate scope are listed in the quotation.
Component manuals, dimensional drawings and NDT reports are supplied; the mounting interface dimensions are provided for integration with the client's rig.
Confirmed in the quotation according to configuration, quantity and destination.
Manuals, conventional spare parts and remote technical guidance are included; on-site commissioning and operator training can be arranged on request.
Payment schedule, Incoterms, port and packaging are agreed in the sales contract.
A recommended spare-parts list for the first operating period is provided with the quotation.
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