Hearken manufactures high-performance pneumatic air actuators certified to ATEX and SIL 3 standards in China. The pneumatic actuators include hard-anodized aluminum rack-and-pinion units and heavy-duty scotch-yoke cylinders, each piece is under 100% air-pressure torque testing. All of these units feature standard ISO 5211 and NAMUR accessory interfaces. This allows distributors and valve automators to install them seamlessly, saving installation time and lowering the overall costs.
Hearken is a professional heavy-duty, high speed pneumatic actuator manufacturer In China. Our product line includes rack and pinion, scotch yoke, and linear pneumatic actuators. Choose our pneumatic valve actuators to match your specific application requirements.
The rack and pinion air actuator features a compact design. It efficiently converts gear rack transmission into rotary motion.
The scotch yoke pneumatic valve actuator utilizes a specialized yoke mechanism. It converts linear motion into rotary motion.
The linear pneumatic valve actuator delivers highly accurate reciprocating travel. These units are designed specifically for linear motion valves.
The double acting pneumatic actuator utilizes a two-way air intake. It achieves fast, accurate forward and reverse motion. This setup drives your equipment with maximum efficiency.
Hearken is a trusted pneumatic actuator supplier in China. We provide high speed pneumatic valve actuators, including rack and pinion, scotch yoke, and linear pneumatic actuator to meet your diverse needs.
Aluminum alloy pneumatic actuators feature a lightweight, corrosion-resistant build. They reduce overall equipment weight while ensuring high performance. This makes them ideal for weight-sensitive scenarios.
With the standard NAMUR VDI/VDE 3845 interfaces, we install accessories like limit switch boxes, solenoid valves, positioners, and manual overrides on the pneumatic actuators directly. And every assembled unit is fully tested for functions and linkage before shipment. You will receive a turnkey system, reducing your local assembly time and labor expenses.
The heavy-duty dual-piston rack and pinion actuator ensures balanced torque and eliminates uneven wear. In order to keep reliable operation under severe environments, both internal and external cylinder surfaces are hard-anodized.This hard-anodized layer keeps the inner bore smooth through millions of cycles, preventing piston jamming and extending seal life. It extends the lifespan of the automated valve assembly, successfully reducing the long-term O&M costs.
From Raw Casting to Strict Quality Control
Hearken is a pneumatic actuator manufacturer with 16 years of experience in China. We check every step of production, from the raw casting to the final quality control. This simple process ensures reliable product quality for your projects.
The adaptable pneumatic valve actuators ensure dependable control. They fit different harsh industrial environments.
We offer aluminum pneumatic actuators in three temperature series. It allows your wholesale or OEM business to meet buyer requests exactly.
This flexibility option helps you to win wide-temperature projects. You can meet different pipeline requirements while keeping your inventory costs low.
| Parameters | Rack and pinion pneumatic actuator | Scotch Yoke Pneumatic Actuator | Linear stroke pneumatic actuator |
| Structural principle | Rack and pinion transmission, converted into rotary motion | Scotch fork structure, linear to rotary motion | Linear reciprocating motion drive valve |
| Rotation/stroke angle | 90°、120°、135°、180° | 90° | Linear stroke (customized parameters) |
| Action mode | Double acting, spring return (single acting) | Double acting, spring return (single acting) | Double acting, spring return (single acting) |
| Main material | Aluminum alloy, stainless steel, plastic | Aluminum alloy | Aluminum alloy |
| Pressure range | Double acting: 2-8 bar; Single acting: 3-8 bar | Double acting: 2-8 bar; Single acting: 3-8 bar | Double acting: 2-8 bar; Single acting: 3-8 bar |
| Ambient temperature | -60℃~150℃ | -60℃~150℃ | -60℃~150℃ |
| Interface standards | ISO 5211（F03-F25） | ISO 5211（F03-F25） | Customized interface (for linear valves) |
| Typical applications | Rotary valves such as ball valves and butterfly valves | Valves with high torque requirements (such as high-pressure ball valves) | Linear motion valves such as regulating valves and knife gate valves |
Oxidized pistons have a higher surface hardness, typically reaching HV 400–600, and offer exceptional corrosion resistance.
No. Excessive torque can impact the pneumatic actuator valve and shorten seal life; the most suitable torque must be selected based on operating conditions.
Our actuators are equipped with internal position sensors. We can provide a fully assembled and tested pneumatic ball valve actuator unit according to your requirements.
1 million cycles.
The standard air source for our pneumatic actuator for ball valve lines is clean, dry instrument-grade compressed air (Instrument Air).
Yes, most Hearken Flow models support laser marking from our pneumatic actuator factory
Our Pneumatic Actuator china manufacturing facility in Wenzhou, China, has a total monthly production capacity of approximately 70,000 units, with a monthly capacity of 50,000 pneumatic actuators. For bulk orders of standard models, we strictly control the lead time for manufacturing and factory-inspected shipment to 15–25 days to ensure your project schedule.
Certainly. All products shipped from our factory have passed strict quality control. If you need this report for project compliance reviews, please notify us before shipment, and we will issue a complete inspection document specifically for you.
To ensure the integrity of pneumatic actuators during long-distance international transport, we provide multi-tiered packaging solutions. In addition to standard export cartons, we offer reinforced crush-resistant cartons exceeding C5 standards, as well as custom wooden crates and pallet services. Simply inform us of your logistics requirements when requesting a quote, and we will match you with the safest packaging solution and corresponding pricing.
