High Torque Pneumatic Actuator – Quarter-Turn or Linear Motion for Heavy-Duty Valves

High Torque Pneumatic Actuator – Quarter-Turn or Linear Motion for Heavy-Duty Valves: Capable of handling heavy-duty valves with high torque requirements.

1.Product Introduction

High-torque pneumatic actuator is a pneumatic actuator powered by compressed air, driven by the linear motion of the piston rack and pinion to the gear drive of the output shaft, with rotary stroke output. Widely used in the ball valve, butterfly valve, plug valve and other angular stroke valve switching and adjustment, can also be applied to other rotary occasions, is the ideal device to achieve industrial pipeline automation control

2. Product Parameter (Specification)

Model:JHA0012 DA - JHA8000 DA
Output torque:8 N.m - 10000 N.m
Structure:Rack and pinion structure
Application:Ball valve, butterfly valve, plug valve and other valv
Air Supply Pressure:3 - 8 bar
Cylinder body material:Aluminum alloy (surface coating: hard anodized)
End cover material:Die-casting aluminum alloy (surface coating: powder spraying)
Air source control:Through filtered compressed air, no need lubricate oil，the oil must suit for NBR under lubricated condition.
Applicable ambient temperature:Standard -20℃~80℃
Low temperature -40℃~80℃
High temperature -15℃~120℃
Flange standard:ISO 5211
Rotate stroke:0 - 90°(+/-5°)
Service life:Maintenance-free and low friction , switch service life more than 1 million times.

3.Product Features

high torque pneumatic actuatorhave the below characteristics:
●Structure : compact rack and pinion pneumatic actuator.
●Low friction ,long service life and the switching times up to 1000,000 times.
●Applied to angular stroke valves, ball valves, butterfly valves, plug valves and other valves.
●Mounting flange in accordance to DIN/ISO5211,control valve with NAMUR standard.
●High quality aluminum alloy material, surface coating by hard anodized , hard nodized+Teflon and other options for special demands and requirements .
●Certificate obtained : ATEX, CE, SIL3, ISO9001:2015 certificate.
●High-end products, excellent quality, complete certification system.
●All products in the factory undergo a rigorous testing, each individual is marked with tracking code for quick identification and complete tracking service.

Select pneumatic actuators with certified torque output matching valve breakaway and running requirements—especially for large butterfly, ball, or plug valves in oil & gas, water treatment, or chemical plants. Look for ISO 5211 mounting compatibility, NAMUR interface options, and materials (e.g., anodized aluminum, stainless steel) suited to corrosive or explosive atmospheres (ATEX/IECEx certification if needed). Dual-acting or spring-return configurations should be clearly specified based on fail-safe needs. Reputable suppliers provide torque curves across supply pressures (typically 4–8 bar), IP67/NEMA 4X protection, and endurance testing data (>1 million cycles). Applications include automated process isolation, emergency shutdown systems, and batch control. Verify ease of maintenance, availability of spare parts, and compatibility with positioners or solenoid valves for integrated control loops. (for reference only)

Due to market conditions, product updates, and policy changes, please contact the supplier for the latest information.