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Operating Speed of Single-Acting Pneumatic Actuators
Single-acting pneumatic actuators typically operate at moderate speeds, with response times ranging from 1 to 5 seconds for full stroke movement.
Key Factors Affecting Speed
Spring Return Mechanism
- The return stroke relies on spring force, which is slower than air-driven motion
- Actuation (air-driven stroke) is faster (0.5-3 sec), while spring return adds 0.5-2 sec
Application-Specific Limits
- Fast Cycling (10-30 cycles/min): Possible but may wear out springs prematurely
- Precision Tasks: Slower speeds (1-3 sec) ensure accuracy in dosing or positioning
Comparison to Double-Acting Actuators
- Slower Return Stroke: Single-acting actuators lose speed advantage on reset
- High-Speed Alternative: For operations requiring 1-2 sec full cycle, double-acting actuators are preferable
Speed Optimization Tips
- Use appropriately sized actuators (avoid oversizing)
- Consider double-acting models for high-speed applications
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