Twin-screw compressors can be oil-containing or oil-free, depending on their design and application scenarios.
oil-bearing twin-screw compressor
- oil-injected twin-screw compressor this is the most common type. In the compression process, it directly into the working chamber into the lubricating oil. Lubricating oil not only participates in the compression process, but also plays a role in cooling and lubrication. After that, the oil and the compressed air are separated by the oil and gas separation device. This type of compressor has the advantages of compact structure, small size, reliable operation, etc., and due to the introduction of lubricating oil, its manufacturing and processing difficulty is relatively low, and the price is relatively close to the people.
oil-free twin-screw compressor
- oil-free dry screw compressor: This compressor does not use lubricating oil in the compression process. In order to achieve effective lubrication and sealing, it usually uses other materials or technologies, such as special coatings, water lubrication, etc. Oil-free screw compressors have significant advantages in situations where high-purity compressed air is required, such as food and pharmaceutical industries.
Select Recommendations
when choosing a twin-screw compressor, it should be determined whether to choose an oil-containing or oil-free type according to the specific application requirements. If you need high-purity compressed air or worry about lubricating oil contamination, oil-free twin-screw compressors may be a better choice. If more attention is paid to the cost performance and the stability of the equipment, the oil-injected twin-screw compressor is an option worth considering.
In short, twin-screw compressors can be oil-containing or oil-free, depending on their design and application requirements.
