rack and pinion rotary piston air torque pneumatic actuator

1. Company Introduction

Zhejiang Kangsaite Valve Co., Ltd. (KST) is a high-tech enterprise dedicating in manufacturing, marketing, researching and developing automatic control valves. We deal with 2000Y pneumatic angle seat valves, pneumatic actuators, electric actuators, pneumatic valves, electric valves, sanitary valves and all products are certified by ISO 9001, CE, etc. As one member of Wenzhou Pump & Valve Industrial Association and China General Machine Association (CGMA), our products have passed the inspection of Product Quality Inspection Center of Shanghai Industrial Automation Institute.

Since establishment, KST sticks to theory of “Science & Technology as Priority, Quality as Basis” and builds up an R&D team to improve test equipment and guarantee product performance. Production is arranged in strict accordance with ISO 9001 International Quality Standard System. KST is equipped with CNC machining center, numerical control machine finish machining as well as CAD R&D and CIMS Computer Network Management System. Each production procedure is controlled in strict compliance with ISO, DIN, 3A, SMS, JIS and GB Standards to guarantee product quality. KST products are widely applied in such fields as natural gas, oil, paper-making, dying, printing, dairy, pharmaceuticals, chemicals, food, environmental protection, water treatment, cosmetics, etc.

KST is always dedicating to developing and manufacturing fluid control equipment products. Relying on international cutting-edge technology, KST is launching new products continuously. In order to forge KST a world-class brand, KST attaches great importance to technology, availability, reliability and service. After many years’ efforts, KST now has dozens of distributors and partners around China and even agents in South Korea and Indonesia.

KST will keep pace with the times, continue to make efforts to make our company an international corporation integrated with technology, production and trading.

2. Product Specification

Pneumatic Actuator AT Series

Pressure Range: Max. working pressure 10bar
Double-acting:2.5bar~8bar
Single-acting:2.5bar~8bar
Adjustment Range: 90°±5°
Lubrication: All the moving parts are coated with lubricants, extending their service life
Life Time: One million time

Type: Single-acting, double-acting

I. Actuator Body

Boy material is aluminium alloy. Internal and external surface are treated with anodic oxidation and polishing. Outer surface is nickle plated so that the anti-corrosion fuction of actuator and minimum friction against pistons can be guaranteed. 

II. End Cover

End cover material is die-casting aluminium. End cover is treated with epoxy polyester so as to best guarantee the anti-corrosion performance.

III. Drive Shaft

The drive shaft material is medium carbon steel with fine processing and nickle plating so that the pistons have better quality in anti-corrosion, anti-friction, etc.

IV. Piston

Piston material is die-casting aluminium alloy. Maxmium torque can be output when the actuator is actuated with certain pressure.

V. Piston Seal

NBR-70 rubber sealing is applied to ensure the normal and reliable performance of actuator under normal temperature. FPM can be also applied according to clients' requirements.

VI. Travel Adjustment

Plus/Mimus 5 degree travel can be adjusted through the two bolts.

3. Service Life Test