TorkOne Rack-and-Pinion Actuator
The TorkOne rack-and-pinion quarter-turn pneumatic actuator is a high-performance solution for valve automation.
Its springless air chamber design ensures 100% torque output during normal operation and up to 2× torque during fail-open or fail-close events, outperforming conventional spring-return actuators.
Key Features
Air Fail-Safe, Springless Design
Proprietary pneumatic fail-safe (pneumatic return / air return / air fail-safe) design replaces traditional spring-return systems.
Enhanced Safety
Eliminates the need for a large spring, preventing injuries or damage caused by broken springs or spring wear.
Configuration Flexibility
One actuator supports both double-acting and single-acting modes. No internal changes (springs or pistons) are required to switch from fail-open to fail-close. Switching is done externally by rotating the solenoid valves.
Cost Reduction - Less Inventory
One product covers multiple configurations, significantly reducing inventory requirements.
Air Consumption
50%–70% lower compared to spring-return actuators.
Weight & Size
Compact and lightweight – 33% to 50% lighter than spring-return designs.
Key Features
More Torque
Provides 100% torque in normal operation. In fail-safe mode (triggered by air supply loss), torque starts at 100% and gradually decreases from 86% to 68% at the end of stroke. In comparison, traditional spring-return actuators drop from 60% to 40%.
Microbial Contamination Risk
Low – no spring means ambient air does not enter the actuator; only clean instrument air is used.
Washdown / CIP Compatibility
Yes – sealed, positive-pressure internals; no swab testing required.
Maintenance & Longevity
Simplified, springless design reduces wear and parts, extending service life.
Modulating Capability
Excellent – consistent torque across the full stroke.
Reduced Carbon & Energy Use
Lower air consumption and streamlined, springless design cut energy demand, reduce material use, and shrink environmental footprint.
One Actuator – Three Modes
Double Acting, Fail Open, Fail Close - without any internal changes
Double Acting
100%
torque output
Air Fail Safe - Start of Stroke
86%
torque output
Air Fail Safe - End of Stroke
68%
torque output
Contact Us
ADDRESS
8-2857 Sherwood Heights Drive, Oakville, Ontario L6J 7J9
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