What is a common consequence of using too stiff a end-of-stroke cushion?

What is a common consequence of using too stiff a end-of-stroke cushion?

• A. It reduces system efficiency
• B. It has no effect on performance
• C. It can cause shocks and mechanical stress
• D. It improves energy efficiency automatically

Answer: (C)

End-of-stroke cushions are meant to absorb energy gradually as the piston nears the end of its travel. If the cushion is too stiff, it resists deceleration too abruptly, so the piston hits the end with a high peak force. That sudden stop sends shocks through the cylinder, its rod, mounts, and connected components, leading to mechanical stress, wear, and potential misalignment or vibration. It doesn’t automatically improve efficiency; the harsh stop can shorten component life and increase noise, so the safest and most accurate outcome is the occurrence of shocks and mechanical stress.

End-of-stroke cushions are meant to absorb energy gradually as the piston nears the end of its travel. If the cushion is too stiff, it resists deceleration too abruptly, so the piston hits the end with a high peak force. That sudden stop sends shocks through the cylinder, its rod, mounts, and connected components, leading to mechanical stress, wear, and potential misalignment or vibration. It doesn’t automatically improve efficiency; the harsh stop can shorten component life and increase noise, so the safest and most accurate outcome is the occurrence of shocks and mechanical stress.