Maintenance Standards for Injection Molding Machines Operating Continuously Without Shutdown

Continuous 24-hour mass production at overseas factories places significant strain on horizontal hydraulic servo injection molding machines; standardized, scheduled maintenance stabilizes system pressure, minimizes downtime caused by malfunctions, and extends the machine's overall service life.
1. Daily Hydraulic System Inspection
Check hydraulic fluid levels and temperatures every shift, and inspect for leaks. Clean suction and return oil filter elements to prevent pressure fluctuations caused by clogged oil lines. In high-temperature environments, regularly test the oil quality; promptly replace it with specialized hydraulic fluid if the oil darkens or viscosity drops, thereby protecting the servo pump and seals.
2. Moisture and Dust Protection for Servo Control Systems
Clean dust from the electrical control cabinet's cooling fans daily and ensure the cabinet door remains tightly sealed. In regions with high heat and humidity, regularly inspect drive and sensor terminals to prevent short circuits caused by condensation and avoid servo-related alarm shutdowns.
3. Scheduled Lubrication of Moving Parts
Apply specialized grease to mold-opening/closing guide rails, tie bars, and ejection mechanisms every shift. Continuous production is prone to dry friction and seizing; proper lubrication reduces mechanical wear and noise.
4. Weekly Calibration of Pressure and Temperature Control Components
Calibrate pressure sensors and thermocouples to ensure stable injection and holding pressures and precise temperature control, preventing batch defects. Check solenoid valves for smooth operation and responsiveness.
5. Monthly Fastener Tightening and Proactive Replacement of Wear Parts
Tighten hydraulic fittings and motor mounting screws. Stock up on wear parts-such as seals, filter elements, and heater bands-and replace them proactively during brief mold-change intervals to eliminate unexpected mid-production breakdowns.
Strict adherence to a scheduled maintenance regimen significantly lowers failure rates during continuous production, ensuring uninterrupted and stable mass output.