The difference between single screw air compressor and twin screw air compressor

We often hear that screw air compressors have a distinction between single screw and twin screw. Single screw air compressors usually have lower requirements for radial and axial gas pressure, can automatically balance, and have a higher pressure bearing capacity for star gear teeth. Without a certain strength and rigidity, it is difficult to support the operation of the machine. The twin-screw air compressor has very high requirements on the rotor, because the rotor needs to bear the radial and axial gas pressure, so the air compressor screw needs to have sufficient strength and rigidity. Simple distinction from the following aspects:

1. pressure balance

the single screw can automatically balance the radial and axial gas pressure, and the rotor of the double screw air compressor directly bears the radial and axial gas pressure, so the requirements for the screw rotor are high.

2. production costs

the screw and bearing of the single-screw air compressor can be satisfied with general materials, and the manufacturing cost is low; the rotor of the twin-screw bears greater pressure, and the bearing material and precision of the rotor are high, so the production cost is also Will be very high.

3. stability

the star gear teeth of a single screw need to withstand greater gas pressure. They are consumables and need to be replaced after a long time. Generally, the air compressor business that is more responsible will provide regular maintenance services and replace them for you. Twin screw air compressor does not need, very stable work to a certain extent, the whole machine for maintenance. In terms of stability, the operation of the twin screw air compressor will definitely be much more stable than the single screw air compressor.

4. compression efficiency

in theory, the same size pressure of the air compressor, the compression efficiency of the two is the same. However, the star wheel of the single screw air compressor is a loss product. With the wear of the star wheel during operation, the overall operating efficiency of the machine will become lower.

5. pressure

single-screw air compressor is more practical high-pressure displacement, while twin-screw is only suitable for use in medium-pressure and low-pressure gas consumption environments. The exhaust pressure of the general operating environment will not be greater than 4.5Mpa.

The noise level of other machines, operation and maintenance, and processing equipment can basically be similar.

A very important point is that the water lubricated air compressor adopts single screw compression, which can make gas without oil.

If you need to purchase water lubricated air compressor, permanent magnet air compressor, variable frequency air compressor and oil-free air compressor, please contact Mr. Hu of Shanghai granklin group at 13918023456