• Indicator: Position indicator with NAMUR for mounting accessories like Limit Switch box and positioner
• Pinion: High-precision nickelled-alloy steel, conforming to ISO5211, DIN3337, NAMUR standards
• Actuator Body: Extruded aluminum alloy ASTM6005 with hard anodized, powder polyester painted, PTFE or Nickel plated options
• Endcaps: Die-casting aluminum with powder polyester paint, PTFE or Nickel plating
• Pistons: Twin rack pistons made from die-casting aluminum or cast steel with galvanization
• Travel adjustment: External stop adjustment bolts for ±5° adjustment at both open and close directions
• High-performance springs: Preloaded coating springs resistant to corrosion with long service life
• Bearings & Guides: Low friction, long-life compound material to avoid metal-to-metal contact
• O-rings: NBR rubber for standard temperatures, Viton or Silicone for extreme temperatures

• Rack & pinion design
• Compact and light weight
• ISO 5211 mounting pattern
• Adjustable stops for both open and closed positions
• Accessory mounting dimensions to NAMUR specifications
• Machined gear teeth for long life and smooth operation
• High cycle life with low friction bearings
• Safety contained springs prevent hazards during maintenance
• Modular design for double-acting and spring-return versions
• Corrosion resistant with hard anodized body and PTFE coated end caps

AT series Pneumatic Actuator is made of dual pistons driven by racks and pinions. Available in Dual Acting and Spring Return models, suitable for various environments including flammable, corrosive, dusty, strong magnetic field, radiation, and vibration conditions.

Applications include auto-control in electric power, petrochemical, metallurgy, petroleum, gas, construction, drainage, chemical industry, oil refining, mining, power plants, architecture, medicine, food, gas, and scientific research.