How often should permanent magnet screw air compressors be maintained?

The maintenance cycle of permanent magnet screw air compressors needs to be comprehensively determined based on factors such as frequency of use, environment, and equipment model. The following are specific suggestions:

1. Reference for routine maintenance cycles

1. Daily/weekly inspections
   • Check the oil level, condensate discharge, and clean the heat sink dust.
   • Observe operating temperature, noise and whether there is any oil leakage.
2. Every 500- 1,000 hours
   • replace lubricating oil(Mineral oil is recommended for 500 hours, and fully synthetic oil can be extended to 1,000 – 2,000 hours).
   • Replace the oil filterAvoid clogging the oil circuit.
3. Every 2000-4000 hours
   • replace the air filter, especially in dusty environments, the cycle needs to be shortened.
   • Inspect and clean the cooler to prevent loss of heat exchange efficiency.
4. Every 6000-8000 hours
   • University: Replace wearing parts such as bearings, seals, belts (if any), etc.
   • Verify the safety valve to ensure that the pressure relief function is normal.

2. Key factors affecting maintenance cycles

1. use environment
   • a high temperature/humidity: Lubricating oil is easy to emulsify, so the oil change cycle needs to be shortened.
   • dusty environments: Air filter replacement frequency doubles.
2. load situation
   • Long-term high-load operation (>80% load) requires maintenance in advance, which is accelerated due to equipment wear.
3. oil type
   • All-synthetic oil has strong antioxidant properties and has a 50%-100% longer maintenance period than mineral oil.
4. recommended by the manufacturer
   • Strictly follow the equipment manual and some brands may require special maintenance (e.g. Atlas, Ingersoll Rand).

3. Tips to extend equipment life

• Regular sampling and analysis: Check the deterioration degree of lubricating oil through oil samples to accurately determine the oil change time.
• intelligent monitoring system: Install sensors to monitor temperature and pressure in real time to warn of potential faults.
• standard operation: Avoid frequent start and stop and reduce damage to the screw caused by instantaneous high pressure.

summary

recommended that every 500-8000 hours Graded maintenance shall be subject to the manual and adjusted based on actual working conditions. For example:

• Light load + clean environment: Maintain according to the manual limit.
• Heavy load + harsh environment: Shorten maintenance cycles by 30%-50%.

Regular maintenance can extend equipment life (usually 10-15 years) and reduce failure rates. It is recommended to establish maintenance ledger tracking records.