Components of Cycle Time
Clamping and Injection Phase (0~5 seconds)
Mold closing → Screw forward to inject molten plastic → Pressure holding and compensation
Cooling and Setting Phase (highest proportion, typically 10~60 seconds)
Plastic cools to solid state in the mold; cooling time can be reduced by optimizing mold water channels
Mold Opening and Part Ejection Phase (3~15 seconds)
Mold opening → Ejector pins push out the part → Robot/Manual part removal
Auxiliary Action Time (1~5 seconds)
Including mold cleaning, release agent spraying, insert placement, etc.
Total Cycle Time = Injection + Pressure Holding + Cooling + Mold Opening + Part Removal + Auxiliary Actions
Core Ideas for Shortening Cycle Time
Prioritize cooling time optimization: Through mold water channel design (e.g., 3D-printed conformal cooling channels) and precise mold temperature control, cooling time can be reduced by 20%~30%.
Improve equipment action efficiency: Using servo motor-driven injection molding machines can increase mold opening/clamping speed by 15%~20%.
Automated part removal: Replacing manual part removal with robots can save 3~5 seconds per cycle.
