EN
Small bag machines are often purchased for flexibility and low investment—but they are also frequently operated with limited maintenance structure. The result is predictable: unexpected stoppages, sealing defects, and shortened machine life.
From a maintenance supervisor’s perspective, a small plastic bag making machine stays profitable only when preventive care is standardized. This article provides a practical daily/weekly/monthly maintenance checklist that reduces breakdowns and protects sealing quality. (Many of these principles also apply to equipment buyers researching woven bag making machine, rice bag making machine, or carry bag machine price—because sealing and feeding stability always depend on maintenance discipline.)
1) Daily Checks (10–20 Minutes)
- Clean sealing area: remove film dust and residue
- Inspect Teflon tape / sealing cloth condition
- Check air pressure stability and air leaks
- Verify sensor cleanliness (photoelectric/encoder area)
- Listen for abnormal bearing noise in key rollers
- Record scrap reasons (quick trend detection)
2) Weekly Checks
- Lubricate points per manual (avoid over-lubrication near film path)
- Check belt tension and wear
- Inspect heater wiring and thermocouple stability
- Verify roller alignment and clean roller surfaces
- Check cutting blade sharpness / replacement schedule
3) Monthly Checks
- Verify temperature calibration vs reference tool
- Inspect pneumatic cylinders for wear and seal leakage
- Check electrical terminals for heat discoloration
- Confirm frame bolts and moving linkages are tight
- Review downtime log and plan corrective actions
4) Spare Parts Strategy (Low Cost, High Impact)
Keep minimum stock of:
- sealing cloth / Teflon tape
- blades
- sensors
- heater cartridges and thermocouples
- pneumatic fittings and tubing
Short lead-time spares reduce downtime cost far more than their purchase price.