The 150HP Two Stage Screw Compressor consists of a two stage screw air-end, a permanent magnet synchronous motor, and a variable frequency control system. It currently represents the most energy-efficient and advanced technology within the screw air compressor industry. The two-stage screw air-end—the core component of this 110KW compressor—is a highly efficient unit designed to achieve optimal compression efficiency by dividing the overall compression process into two distinct stages. This two-stage compression approach reduces the compression ratio required for each individual stage, thereby minimizing internal leakage, enhancing volumetric efficiency, reducing the load on the bearings, and extending the service life of the air-end. In the first stage, intake air is compressed to an intermediate pressure, which then serves as the inlet pressure for the second stage of compression. The second stage further compresses the air, raising its pressure to the required discharge level. During this process, the heat generated by the first stage of compression is dissipated by cooling lubricant oil; any residual heat is further reduced by a mist of atomized coolant injected prior to the air entering the second-stage air-end. This process effectively lowers the temperature of the compressed air and significantly reduces the energy required for compression. The entire compression process thus more closely approximates isothermal compression, achieving energy savings of up to 15% compared to single-stage compression systems. Furthermore, the rotors undergo a precision machining process involving twenty distinct steps, ensuring the utmost accuracy, reliability, and efficiency of the rotor profile.
Two Stage Screw Air Compressor Advantages:
1. Compared to single-stage permanent magnet screw air compressors, this unit achieves additional electricity savings of 30% to 50%.
2. The OSMAN two-stage compressor delivers superior performance and greater operational stability.
3. The air end of the two stage screw compressor boasts a longer service life due to reduced stress on the rotors, and the oil change interval can extend up to 8,000 to 12,000 hours.
| MODEL |
POWER |
AIR FLOW |
PRESSURE |
| SAD-110 |
110KW(150HP) |
24.5m³/min |
0.8Mpa |