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Which factors affect the torque of a spring return pneumatic actuator

2025-08-19

Factors Affecting Actuator Torque Performance

1. Pneumatic Supply Conditions

  • The pressure of compressed air directly influences torque output.
  • The air pressure entering the actuator determines the force pushing the piston; insufficient pressure weakens this force.
  • Airflow stability matters, as pressure fluctuations cause inconsistent torque delivery.
  • Cleanliness of the air supply affects performance, as contaminated air may impede piston movement.

2. Spring Performance Characteristics

  • The condition of the springs plays a key role in determining return torque.
  • Spring material and manufacturing quality dictate elastic performance.
  • The pre-compression state of the springs influences initial return force.
  • Over time, springs may lose elasticity, reducing return torque and compromising reliability.

3. Mechanical Structure Design

  • Precision in internal mechanical cooperation affects torque transfer.
  • Poor sealing between the piston and cylinder causes air leakage.
  • The connection method of transmission components determines force transfer efficiency.
  • Cylinder structural design impacts force distribution and torque generation efficiency.

4. Environmental and Operational Conditions

  • Temperature variations affect torque performance by altering material properties.
  • Extreme temperatures impact spring elasticity and sealing effectiveness.
  • Corrosive substances may erode internal components, increasing movement resistance.
  • Frequent continuous operation accelerates component wear over time.

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