Check for leaks around pumps and valves. Listen for unusual whining or knocking sounds from the pump, which often indicates wear.
Request a test run under load . Watch for consistent cycle timing, stable pressure readings, and any abnormal vibrations. 3. Evaluation of History and Brands buy used injection molding machine
This is the pressure required to keep the mold closed during injection. A common rule is to add a 10–20% safety margin to your calculated minimum to prevent "flash" (excess plastic). Check for leaks around pumps and valves
Before searching, define your requirements to avoid costly mistakes like oversizing, which can waste . stable pressure readings
Never buy a machine based on photos alone. Use this checklist during a physical inspection: