Mechanical stops can be used to accurately position a pneumatic cylinder.

Mechanical stops can be used to accurately position a pneumatic cylinder.

• A. Not true
• B. Sometimes
• C. Only for hydraulic systems
• D. True

Answer: (D)

Mechanical stops define a fixed end point in a motion system, so a pneumatic cylinder can be positioned by moving until the rod contacts the stop. This creates a repeatable location along the stroke, which is useful for end‑of‑travel positioning or indexing parts. To make the positioning genuinely reliable, the stop must be rigidly mounted and the approach to it carefully controlled—typically with slow, smooth actuation and sometimes with cushioning to limit impact and rebound. In practice, many setups also add sensors (like limit switches or proximity sensors) to confirm contact and provide feedback for closed‑loop control, which helps maintain accuracy despite the compressibility of air and varying loads. So, mechanical stops can be used to accurately position a pneumatic cylinder, especially when combined with proper design and feedback.

Mechanical stops define a fixed end point in a motion system, so a pneumatic cylinder can be positioned by moving until the rod contacts the stop. This creates a repeatable location along the stroke, which is useful for end‑of‑travel positioning or indexing parts. To make the positioning genuinely reliable, the stop must be rigidly mounted and the approach to it carefully controlled—typically with slow, smooth actuation and sometimes with cushioning to limit impact and rebound. In practice, many setups also add sensors (like limit switches or proximity sensors) to confirm contact and provide feedback for closed‑loop control, which helps maintain accuracy despite the compressibility of air and varying loads. So, mechanical stops can be used to accurately position a pneumatic cylinder, especially when combined with proper design and feedback.