3/4/5 Bar PM VSD Two-Stage Screw Air Compressor
Short Description:
The 3/4/5 Bar PM VSD Two-Stage Screw Air Compressor is designed for energy-efficient, low-pressure compressed air applications. Available from 15kW to 250kW, it features optimized screw rotors, low-speed operation, and two-stage compression for reduced noise, lower vibration, extended service life, and superior efficiency. Ideal for use with an air tank, refrigerated air dryer, and precision filter as a complete compressed air system.
The low-pressure two-stage compression design maximizes energy savings by reducing compression ratios and minimizing leakage. An efficient intercooling system lowers air temperature for near-isothermal compression, delivering 5–8% lower energy consumption than single-stage compressors while reducing bearing loads, extending service life, and improving overall reliability.
Low Pressure Two-Stage PM VSD Screw Air Compressor 3/4/5bar
| Model | ALT-30PV | ALT-40PV | ALT-50PV | ALT-60PV | ALT-75PV | ALT-100PV | ALT-125PV | ALT-150PV | ALT-175PV | ALT-200PV | ALT-250PV | ALT-275PV | ALT-300PV | ALT-350PV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power(kw) | 22 | 30 | 37 | 45 | 55 | 75 | 90 | 110 | 132 | 160 | 185 | 200 | 220 | 250 |
| Horsepower(hp) | 30 | 40 | 50 | 60 | 75 | 100 | 125 | 150 | 175 | 200 | 250 | 275 | 300 | 350 |
| Air displacement / Working pressure (m³/min. / bar) - 3 bar | 5.89/3 | 8.29/3 | 11.92/3 | 14.89/3 | 15.79/3 | 19.55/3 | 25.48/3 | 31.49/3 | 36.62/3 | 39.9/3 | 45.62/3 | 50.69/3 | 57.06/3 | 61.73/3 |
| Air displacement / Working pressure (m³/min. / bar) - 4 bar | 5.88/4 | 7.52/4 | 9.18/4 | 11.91/4 | 14.87/4 | 19.53/4 | 21.69/4 | 31.46/4 | 32.52/4 | 39.86/4 | 45.57/4 | 50.64/4 | 54.93/4 | 57.01/4 |
| Air displacement / Working pressure (m³/min. / bar) - 5 bar | / | 5.55/5 | 7.51/5 | 9.17/5 | 14.89/5 | 17.55/5 | 20.91/5 | 25.43/5 | 31.43/5 | 36.22/5 | 40.90/5 | 45.83/5 | 54.87/5 | 56.95/5 |
| Air outlet diameter | DN40 | DN65 | DN80 | DN80 | DN80 | DN125 | DN125 | DN125 | DN125 | DN150 | DN150 | DN200 | DN200 | DN200 |
| Noise level dB(A) | 58±3 | 63±3 | 66±3 | 66±3 | 66±3 | 66±3 | 68±3 | 68±3 | 74±3 | 74±3 | 74±3 | 78±3 | 78±3 | 78±3 |
| Type | PM VSD | |||||||||||||
| Driven method | Direct driven | |||||||||||||
| Start method | PM VSD | |||||||||||||
| Length (mm) | 1600 | 1700 | 1700 | 1700 | 1950 | 1950 | 2800 | 2800 | 2800 | 3200 | 3200 | 3300 | 3300 | 3600 |
| Width (mm) | 1250 | 1250 | 1250 | 1250 | 1300 | 1300 | 1700 | 1700 | 1700 | 2000 | 2000 | 2100 | 2100 | 2200 |
| Height (mm) | 1300 | 1300 | 1300 | 1300 | 1650 | 1650 | 1950 | 1950 | 1950 | 2100 | 2100 | 2450 | 2450 | 2450 |
| Weight (kg) | 780 | 850 | 1000 | 1100 | 1800 | 1900 | 2900 | 3500 | 3900 | 4400 | 4500 | 4600 | 4800 | 5200 |
