The difference between oil-free screw air compressor and oil screw air compressor

The difference between oil-free screw air compressor and oil screw air compressor is mainly reflected in the following aspects:

1. use of lubricating oil:
   • oil-free screw air compressor does not use lubricating oil in the compression process, so the compressed air output does not contain oil, which is suitable for occasions with high air quality requirements.
   • Oil screw air compressor needs to use lubricating oil to play the role of lubrication, sealing and cooling, and its output compressed air will contain a certain amount of oil.
2. Field of application:
   • oil-free screw air compressor because of its output compressed air pure oil-free, especially suitable for food, medical, electronics and other industries with high air quality requirements.
   • Oil screw air compressor is widely used in manufacturing, construction, mining and other fields, but the air quality requirements are not high.
3. Maintenance and maintenance:
   • since the oil-free screw air compressor does not use lubricating oil, there is no need to replace the lubricating oil, which reduces the maintenance workload and avoids environmental pollution caused by oil mist discharge.
   • The oil screw air compressor needs to replace the lubricating oil regularly, and needs to deal with the problem of oil mist emission.
4. Cost Considerations:
   • although the initial investment may be high, the oil-free screw air compressor can save long-term maintenance costs and reduce the impact on the environment because it does not need to use lubricating oil.
   • The initial investment of the oil screw air compressor is relatively low, but it is necessary to continuously purchase and replace the lubricating oil during long-term use, which increases the operating cost.

In summary, there are significant differences between oil-free screw air compressors and oil-free screw air compressors in the use of lubricating oil, application areas, maintenance and cost considerations. Which type of air compressor should be selected according to the specific application requirements and environmental conditions.