Two Groups PM VSD Screw Air Compressorr

Working Pressure :

7  – 12.5 [ bar ] 102 – 181 [ psig ]

Free Air Delivery :

90 – 3137 [ cfm ] 2.54 – 88.35 [ m3/min ]

Working Power :

55 – 400 [ kw ] 75 – 550 [ hp ]

Two Groups PM VSD Screw Air Compressor Freatures and Advantages :

    1. Permanent Magnet Variable Frequency Air Compressor Features
      – Ultra-low temperature rise design, which allows the compressor to work at very low frequencies for a long time.
      – Closed-loop vector control system for faster control and more precise speed control.
      – The compressor unit can still operate efficiently if the frequency is reduced by more than 50%.
      – The pressure is stable and the pressure fluctuation is controlled accurately within 0.1 bar.
      – The figure shows a comparison of several initial methods. It can be seen that the frequency converter accelerates slowly to start, the start is more stable, and peak currents are completely avoided.

2.  Air End
– More stable, no mechanical transmission failure: high-efficiency permanent magnet synchronous motor and male screw rotor adopt integrated shaft direct connection structure embedded, no gear transmission, completely eliminating tooth holes or broken teeth; Two integrated independent permanent magnet motors directly drive the two air ends, no clutch failure.
– More energy efficient, the air end always runs at an energy-saving speed.
– More efficient and efficient permanent magnet motor + no loss of transmission efficiency.
– More comfortable, low operating noise, eliminating three sources of noise: no-click bearing noise, no gear engagement sound, no clutch driving sound.
– More compact: The permanent magnet motor is small in size and integrated structure saves space.
– Under the set frequency conversion pressure, the unit will automatically adjust to keep the output pressure within ±0.1 bar, reducing unnecessary waste (power consumption increases by 7% for every 1 bar increase in pressure)

3. Advantages of Permanent Magnet Motors Compared to General Asynchronous Motors
– High efficiency: Eliminate excitation system losses and improve efficiency.
– It is still efficient under low load conditions: the energy efficiency of permanent magnet motors is more than 9% higher than that of conventional asynchronous motors in operation full load, and its energy efficiency remains unchanged as speed decreases.
– Large overdrive torque: The ratio of the maximum starting torque of a permanent magnet synchronous motor to the rated torque can be more than 3 times, while the motor general asynchronous is only 1.6 times.
– The control is more stable: the suitable time of the permanent magnet motor is <50ms, and the gas production can be adjusted over a wide range in an instant, so the gas pressure is completely stable.

4. Stainless Steel Piping Design
– The piping arrangement is simple and beautiful. The stainless steel pipe design effectively prevents rust on the pipe, and avoids safety accidents due to leakage
pipe.

5. More Advanced Technology. More Powerful Inverter
– Standard equipment is equipped with a high frequency reactor to reduce the high frequencies generated by the inverter.
– Soft start inverters reduce peak current at startup, resulting in smooth starts and greatly reducing power costs.
– Inverter forced cooling to prevent high temperature blackout in Summer.
– Standard equipment dust screen, circuit board surface coating treatment, high efficiency and resistance to dirt, dust, moisture.
– The special design of the inverter heat dissipation area ensures stable operation of the inverter in high temperature environments.
– No idling occurs under any load conditions to achieve the desired power saving effect.
– Quickly track pressure changes, control pressure fluctuations within ±0.1 bar, and optimize power usage to accurately provide the right amount of air as needed.

6. Oil Filter
– Imported brands are used to reliably filter dirt particles in lubricating oil to ensure smooth operation and lubrication of the oil system at 0.1 microns.

7. Air Filter
– Imported brands are used to reliably remove impurities from the air. The dust particles in the air are controlled below 0.3 microns and the filtration accuracy reaches 99.99%.

Two Groups PM VSD Screw Air Compressor Technical Parameters :

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