The Series of Clutch is a full-series heavy-duty pneumatic power transmission component strictly manufactured in accordance with API Spec 7K petroleum industry standards, specially developed for oilfield drilling rigs, workover rigs, drawworks and mud pump supporting systems. This product series covers mainstream types including air tube clutch, push disc clutch and ventilation pneumatic clutch, with complete specifications ranging from 8-inch to 60-inch, fully matching small workover equipment, medium drilling rigs and ultra-large deep well drilling units. As the core power switching and torque transmission unit of oilfield mechanical transmission systems, it undertakes key functions such as flexible power engagement and disengagement, stable torque output, impact load buffering and equipment overload protection. Adopting high-strength friction assembly, durable rubber airbag, precision steel disc structure and optimized pneumatic control module, the clutch realizes smooth start and stop of high-inertia drilling equipment, effectively avoiding rigid impact damage to transmission components. Featuring non-lubrication operation, fast response and anti-self-engagement performance, the whole series adapts to long-term high-frequency cyclic operation and harsh field working conditions. It provides reliable power transmission guarantee for onshore oil and gas drilling, workover maintenance, well completion and mechanical supporting operation projects.
The complete clutch series includes multiple structural types and full-size grades, perfectly compatible with mainstream oilfield drawworks, mud pumps and drilling rig power systems. Standardized installation dimensions and interface design realize seamless matching with various brand rig equipment, covering operational demands from conventional shallow well workover to ultra-deep well high-load drilling construction.
Adopts pneumatic driving working principle with ultra-fast response speed and accurate switching control. It realizes soft start and smooth power transmission of high-inertia mechanical equipment, effectively reducing mechanical impact and torque fluctuation during startup and shutdown. Free from centrifugal force interference, it avoids automatic engagement failure and ensures stable torque output under variable load operating conditions.
Equipped with high-density high-friction friction plates and thickened steel discs with uniform stress distribution and strong wear resistance. The imported high-elastic rubber airbag features excellent pressure resistance and fatigue resistance, adapting to long-term high-frequency inflation and deflation cyclic operation. The optimized heat dissipation structure avoids thermal decay of friction performance under high-load continuous operation, greatly extending overall service life.
Adopts dry-type friction operation design without lubrication required, eliminating oil pollution and daily oil filling maintenance work. The modular split structure facilitates quick replacement of wearing parts such as friction plates and airbags, reducing equipment shutdown time and daily maintenance difficulty. Stable performance and low failure rate effectively lower long-term operation and maintenance costs of oilfield equipment.
All core components adopt wide-temperature anti-aging, dust-proof and anti-corrosion configuration. The overall sealed structural design effectively isolates oilfield sand, mud and humid corrosive media. It supports stable continuous operation within -40℃ ~ +55℃, perfectly adapting to extreme working environments such as desert high temperature, Gobi wind-sand erosion and high-altitude cold plateaus.
The flexible friction transmission structure provides inherent overload buffering performance. When the equipment encounters sudden overload and jamming, the clutch realizes automatic slipping protection to avoid burnout and damage of power engines and transmission components. It effectively guarantees the overall operational safety of drilling and workover mechanical systems.
| Product | Series of Clutch |
|---|---|
| Product line | Assembly Parts |
| No. | model | (kN.m) Static torque | (rpm) Max. rotary speed | (mm) Press disc moving distance | (MPa) Working pressure |
| 1 | ATD-124H | 17.4 | 1400 | 2~3 | 0.7 |
| 2 | ATD-224H | 34.7 | 1400 | 3~4 | |
| 3 | ATD-324H | 52 | 1400 | 4~5 | |
| 4 | ATD-218H | 16.9 | 1650 | 2~3 | |
| 5 | ATD-318H | 25.4 | 1650 | 3~4 | |
| 6 | ATD-214H | 8.1 | 2200 | 2~3 | |
| 7 | ATD-330H | 110.8 | 1100 | 5~6 |
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryAvailable configurations can be matched to the equipment model, operating conditions and project requirements.
The following questions address common equipment selection and operating considerations.
The oilfield clutch is a key pneumatic transmission component for drilling and workover equipment. It mainly realizes flexible engagement and disengagement of power transmission, buffers startup and shutdown mechanical impact, provides stable torque output, and triggers automatic overload protection to prevent equipment damage, ensuring safe and stable operation of the entire mechanical system.
Different from traditional mechanical clutches, oilfield pneumatic clutches adopt dry-type non-lubrication design with fast response, no self-engagement risk and stable operation. They feature flexible power transmission, strong overload buffering capacity, no oil pollution and simple daily maintenance, fully adapting to high-frequency and high-load harsh oilfield working conditions.
Model selection is based on supporting equipment type, power grade, working torque and operating frequency. Small-size clutches suit conventional workover rigs and small mud pumps; medium and large-size high-torque clutches are applicable to deep and ultra-deep well drilling rig drawworks and high-power supporting equipment.
Yes. The full-series products adopt full-climate adaptive design with dust-proof, anti-corrosion and wide-temperature resistant performance. Core components resist low-temperature aging and high-temperature thermal decay, ensuring stable pneumatic control and friction transmission at -40℃ ~ +55℃, adapting to all harsh oilfield working environments.
Yes. We support personalized customization of clutch type, size, torque grade, heat dissipation structure, control system and protective configurations, matching different oilfield equipment models, working condition intensity and regional operation standards.
We provide full-series API 7K standard Oilfield Clutch with independent R&D and standardized manufacturing capabilities, strictly complying with international petroleum industry safety specifications. Our products cover complete types and size grades, featuring flexible pneumatic control, stable torque transmission, excellent wear resistance and maintenance-free operation advantages. The built-in overload protection mechanism ensures high operational safety, while modular structure greatly reduces daily maintenance costs and equipment failure rate. We deliver one-stop full-process solutions including personalized scheme customization, standardized production, global logistics and on-site matching guidance, providing reliable core transmission component support for oilfield drilling, workover and mechanical supporting operation projects.
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