What is end-of-stroke cushioning adjustment and how does it affect performance?

What is end-of-stroke cushioning adjustment and how does it affect performance?

• A. Replacing the piston rod
• B. Adjusting air supply temperature
• C. Changing cushion color
• D. Adjusting cushion strength to control deceleration; too stiff causes shocks, too soft causes sluggish stopping and rebound

Answer: (D)

End-of-stroke cushioning adjustment is about tuning how the piston’s energy is absorbed as it nears the end of its travel. The cushion slows the piston down gradually so it doesn’t slam into the end cap, which protects the cylinder from shock, reduces noise, and controls rebound so the system settles smoothly after stopping. The right amount of cushion strength matters: if it’s too stiff, deceleration happens too quickly, causing shocks, increased wear, and harsher operation; if it’s too soft, stopping becomes sluggish and the piston can rebound, wasting cycle time and making positioning less precise. With a proper setting, you get a controlled, quiet stop, smoother overall motion, and better repeatability and longevity of the cylinder and driving mechanism. Other options don’t influence how the end of stroke is damped—replacing the piston rod changes the component, adjusting air temperature affects conditions rather than the damping at the end, and cushion color is cosmetic and unrelated to performance.

End-of-stroke cushioning adjustment is about tuning how the piston’s energy is absorbed as it nears the end of its travel. The cushion slows the piston down gradually so it doesn’t slam into the end cap, which protects the cylinder from shock, reduces noise, and controls rebound so the system settles smoothly after stopping. The right amount of cushion strength matters: if it’s too stiff, deceleration happens too quickly, causing shocks, increased wear, and harsher operation; if it’s too soft, stopping becomes sluggish and the piston can rebound, wasting cycle time and making positioning less precise. With a proper setting, you get a controlled, quiet stop, smoother overall motion, and better repeatability and longevity of the cylinder and driving mechanism.

Other options don’t influence how the end of stroke is damped—replacing the piston rod changes the component, adjusting air temperature affects conditions rather than the damping at the end, and cushion color is cosmetic and unrelated to performance.