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CKDYM Series
The CKDYM Series Linear Stroke Hydraulic Actuator is a high-precision end control unit for industrial automation systems, engineered by Hengchun Actuator—a leading China manufacturer of electro-hydraulic actuator solutions. Integrating advanced electro-hydraulic servo and intelligent control technologies, this actuator delivers precise thrust-torque matching for linear valves, redefining reliability and efficiency in industrial valve control. Driven by a servo motor and high-pressure hydraulic pump, it features fast start-up (0.5s) and 30% lower energy consumption than traditional hydraulic systems, with an IP68 double-sealed enclosure and optional explosion-proof design. Widely applied in power, petrochemical, and oil & gas sectors, it supports local/remote/bus control and seamless DCS/PLC integration, becoming a core component for automated industrial processes.
This linear stroke hydraulic actuator boasts a thrust range of 9 kN – 500 kN, adapting to light to heavy-duty applications. It achieves ±0.5% basic positioning accuracy, with the regulating type reaching <0.15% of full stroke control accuracy and 5Hz fast response speed, ensuring precise adjustment for dynamic industrial processes. Equipped with Hall absolute encoder and high-resolution torque sensor, it realizes real-time and accurate feedback of stroke and thrust.
It supports cover-free commissioning via infrared remote control and panel buttons, with a 32-bit ARM microprocessor for strong anti-interference. The actuator has comprehensive protection functions (phase loss, temperature, stall protection) and dual overpressure protection, enabling emergency manual operation and power failure position holding via a built-in accumulator.
With a zero-leakage design and low maintenance requirements, it features an IP65/IP68 customizable protection class and Ex d IIB T4/Ex d IIC T4 explosion-proof rating, suitable for harsh and hazardous environments. Customizable flanges and drive shafts match most linear valves, and multi-signal input/output ensures wide compatibility with industrial control systems.
Parameters | Description |
Torque Range | linear stroke direct mounting: 9kN~500kN |
Control Type | On-off, Regulating, Fieldbus |
Control Accuracy | <0.2% (Regulating type: <0.15%) |
Dead Band | 0.15%~5% (Adjustable); Repeatability: <0.15% |
Response Time | <0.2s |
Protection Class | IP65, IP68 (Customizable) |
Temperature Range | Standard type: -20~70°C; Low-temperature option: -40~70°C |
Explosion-proof Class | ExdIIBT4, ExdIICT4 (Customizable) |
Motor Technology | Brushless DC Servo Motor |
Power | General type: 750W/1500W/3000W |
Motor Insulation Class | CLASS F (155°C) |
Power Supply Voltage | 220V/380V AC, 50/60Hz |
Electrical Connection | M332 × 2 pcs, M482 × 1 pc |
Input Signal | 4-20mA (Regulating type) or Dry Contact (On-off type) or Fieldbus Signal |
Output Signal | 4-20mA (Regulating type) or Dry Contact (Open Position, Close Position or Fault Alarm, etc.) |
Position Sensor | Hall Absolute Encoder (directly measures stroke/angle of output spindle) |
Torque Sensor | Directly feeds back output torque/thrust by measuring output pressure; Resolution: 0.1% |
System Rated Pressure | 12-14MPa |
Position Indicator | Mechanical/Electronic |
Hydraulic Oil | Standard 32# hydraulic oil; Low-temperature hydraulic oil (optional for low-temperature conditions) |
Output Flange | Complies with ISO 5210/GB12222 and ISO5211/GB12223 standards |
Model | Bore diameter(mm) | 10Mpa thrust(kN） | 14Mpa trust(kN) | speed(mm/sec) | |||
750W Motor | 1500W Motor | 3000W Motor | 1500+3000W Motor | ||||
CKDYM13 | 40 | 9 | 13 | 36 | 67 | 一 | 一 |
CKDYM20 | 50 | 14 | 20 | 23 | 43 | 86 | 一 |
CKDYM30 | 63 | 22 | 31 | 15 | 27 | 55 | 82 |
CKDYM50 | 80 | 36 | 51 | 一 | 17 | 33 | 50 |
CKDYM80 | 100 | 57 | 80 | 一 | 11 | 21 | 32 |
CKDYM120 | 125 | 89 | 125 | 一 | 7 | 14 | 21 |
CKDYM150 | 140 | 113 | 158 | 一 | 5 | 11 | 16 |
CKDYM200 | 160 | 147 | 206 | 一 | 4 | 8 | 13 |
CKDYM300 | 200 | 228 | 320 | 一 | 3 | 5 | 8 |
CKDYM500 | 250 | 370 | 510 | 一 | 2 | 3 | 5 |
Hengchun Actuator adheres to strict manufacturing and quality control standards for every CKDYM Series Linear Stroke Hydraulic Actuator. We provide an 18-month warranty for the whole machine and a 24-month warranty for core components (motor, controller, hydraulic pump). Lifelong maintenance service is available after the warranty period. For all customers, free installation videos and remote technical guidance are provided; on-site installation support is offered for bulk orders (travel expenses borne by the purchaser). Standard models have a delivery lead time of 28-30 working days, while customized models take 30-45 working days, ensuring timely and reliable supply.
Driving wellhead ball valves and pipeline block valves, meeting ESD emergency shutdown and explosion-proof requirements for offshore platforms and long-distance oil & gas pipelines.
Controlling main steam isolation valves and feed water regulating valves in thermal/nuclear power plants, with servo speed regulation preventing water hammer for stable operation.
Precisely regulating reactor feed valves in petrochemical plants and sedimentation tank outlet valves in waterworks, with zero-leakage design reducing medium loss and secondary pollution.
Provide your valve parameters (type, required thrust), working condition data (temperature, pressure), and control requirements (signal type, communication mode). Our professional team will offer free and accurate model selection guidance.
Yes. We provide customizable flanges, drive shafts, protection classes, and explosion-proof ratings to match your specific industrial valve and working environment needs.
