Proper maintenance of a blow molding machine is essential for ensuring long-term stability, extending service life, and improving production efficiency. Below are detailed maintenance recommendations, categorized into daily, periodic, and long-term maintenance.

1. Daily Maintenance

1. Cleaning

   • Remove plastic residues and oil stains from molds, barrels, and screws after each production run to prevent carbon buildup.

   • Wipe down the machine surface with a soft cloth to prevent dust from entering electrical or moving parts.

   • Clean cooling channels (e.g., mold and barrel cooling systems) to avoid clogging from scale deposits.

2. Lubrication Check

   • Inspect oil levels in lubrication systems (e.g., guide rails, chains, bearings) and refill or replace lubricants as needed.

   • Use manufacturer-recommended grease or oil; avoid mixing different types.

3. Pneumatic & Hydraulic Systems

   • Check for air leaks in the pneumatic system and ensure stable air pressure (typically 0.6–0.8 MPa).

   • Monitor hydraulic oil levels and quality; replace or filter oil periodically (recommended every 3–6 months).

4. Tightening Components

   • Inspect screws, nuts, and mold fastening bolts for looseness, especially in high-vibration areas.

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