High-performance spring return pneumatic actuator delivering torque from 9NM to 4620Nm at 6 bar air supply. Designed for reliable valve operation in demanding industrial applications.

• Unique spring retainer construction for extended spring life
• Pre-compression design enhances durability
• Modular spring sets for optimized torque customization
• Gr. III epoxy coated springs with high corrosion resistance
• Non-buckling modular spring design
• No lubrication required for spring operation

• Large bearing area reduces operational load
• High-tech polymer materials for low friction
• Triple-point bearing system for superior stability

• ISO 5211 valve mounting with additional larger pad
• Standardized mounting accessories
• ISO centering ring for precise location
• Octagonal drive shaft for easy installation

• Position indicator with NAMUR for accessory mounting
• High-precision nickel-alloy steel pinion
• Extruded aluminum alloy ASTM6005 body
• Die-casting aluminum powder polyester painted end caps
• Twin rack pistons with symmetric mounting
• External travel stop adjustment (±5° at open/close)
• Low-friction compound material bearings & guides
• NBR rubber O-rings for standard temperature operation

Spring return design: Air pressure compresses springs during operation, while spring energy returns actuator to position upon pressure loss. Available in multiple coating options including PTFE, Nickel, Epoxy, Polyester, and Ceramic for corrosive environments.