How to eliminate flash on parts molded on a Milacron Roboshot
Flash at the parting line means injection pressure exceeds clamp force, or the mold parting line has damage or contamination. Check clamp force first, then inspect the mold parting surfaces.
How to diagnose hot runner failure on a Milacron Roboshot
A hot runner zone alarm on the Roboshot is almost always a burned-out heater band or a failed thermocouple. Test each zone with a multimeter before pulling the mold.
How to fix hydraulic overheating on a Milacron Roboshot
Hydraulic overheating on the Roboshot points to a blocked or failed oil cooler, or an internal valve that is bypassing flow and generating heat. Check the cooler first, it is the most common cause.
How to fix long cycle times on a Milacron Roboshot injection molding machine
A longer-than-normal cycle on the Roboshot is most often a cooling circuit problem or a slow valve response. Log each phase of the cycle to isolate where the time is being lost.
How to diagnose a screw that won't rotate on a Milacron Roboshot
A screw that won't turn on the Roboshot is either frozen material in the barrel or a drive system fault. Never force the screw to turn manually before diagnosing the cause.
How to fix short shots on a Milacron Roboshot injection molding machine
Short shots on the Roboshot are usually a worn check ring losing shot size, or insufficient injection speed or pack pressure for the part geometry. Confirm the check ring seals before changing process parameters.