SMC Mold Maintenance: Daily Weekly Monthly Checklist represents an important area in industrial composite applications.
Why Mold Maintenance Determines Profitability
An SMC compression mold operating at 150°C under 1,000+ tons cycles hundreds of times daily. Proper maintenance extends mold life from 50,000 to 150,000+ cycles — tripling ROI. Neglected molds develop flash, sticking, surface defects, and dimensional drift that produce scrap parts and require expensive rework.
Daily and Weekly Maintenance Tasks
Daily: clean cavity surfaces with brass scraper and compressed air; check ejector pin operation; verify thermocouple readings against a surface probe; inspect for resin buildup in vent grooves; apply semi-permanent mold release as scheduled. Weekly: remove and inspect shear edge inserts; check mold alignment at operating temperature (≤0.05mm variation across four corners); test heater cartridge resistance against baseline; torque all fasteners to specification.
Monthly Deep Maintenance Protocol
Full mold disassembly for cleaning and dimensional inspection. Measure critical cavity dimensions against original — any drift indicates wear requiring correction. Verify mold flatness and parallelism at temperature. Polish cavity surfaces with 1-3 micron diamond paste to restore release properties. Pressure-test heating channels. Re-apply base coat of mold release and cure per manufacturer specification.
| Frequency | Key Tasks | Tools | Time |
|---|---|---|---|
| Daily | Clean cavity, check ejectors, verify temps | Brass scraper, compressed air, probe | 15-30 min |
| Weekly | Inspect shear edges, alignment, heaters | Feeler gauges, multimeter, torque wrench | 1-2 hours |
| Monthly | Full disassembly, dimensional check, polish | CMM, diamond paste, pressure tester | 4-8 hours |