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Super Energy Saving Permanent Magnet Air Compressor Equipment

Good quality Oil free scroll air compressors for sales
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Super Energy Saving Permanent Magnet Air Compressor Equipment

China Super Energy Saving Permanent Magnet Air Compressor Equipment supplier
Super Energy Saving Permanent Magnet Air Compressor Equipment supplier Super Energy Saving Permanent Magnet Air Compressor Equipment supplier Super Energy Saving Permanent Magnet Air Compressor Equipment supplier Super Energy Saving Permanent Magnet Air Compressor Equipment supplier Super Energy Saving Permanent Magnet Air Compressor Equipment supplier Super Energy Saving Permanent Magnet Air Compressor Equipment supplier

Large Image :  Super Energy Saving Permanent Magnet Air Compressor Equipment

Product Details:

Place of Origin: CHINA
Certification: CE
Model Number: DRM-100A

Payment & Shipping Terms:

Minimum Order Quantity: 1unit
Price: usd2256
Packaging Details: plywood case
Delivery Time: 5-20days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 600units/month
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Detailed Product Description
Name: Screw Air Compressor Cooling: Oil
Motor Power: 18~160(Kw) Air Delivery: 0.7~29(m3/min)
Working Pressure: 7~13.0(Bar) Motor Protection Class: IP65 / IP54

Permanent magnet vsd screw air compressor PMAC motor vsd screw compressor


General introduction of permanent magnet motor:

  • Permanent magnets are materials where the magnetic field is generated by the internal structure of the material itself. Inside atoms and crystals you have both electrons and the nucleus of the atom. Both the nucleus and the electrons themselves act like little magnets, like little spinning chunks of electric charge, and they have magnetic fields inherent in the particles themselves. There's also a magnetic field that's generated by the orbits of the electrons as they move about the nucleus. So the magnetic fields of permanent magnets are the sums of the nuclear spins, the electron spins and the orbits of the electrons themselves. In many materials, the magnetic fields are pointing in all sorts of random directions and cancel each other out and there's no permanent magnetism. But in certain materials, called ferromagnets, all the spins and the orbits of the electrons will line up, causing the materials to become magnetic. This would be your normal iron, cobalt, nickel. Permanent magnets are limited by the structure of the material. And the strongest magnetic field of a permanent magnet is about 8,000 gauss. The strongest magnets here at the Magnet Lab are 450,000 gauss, which would be almost 50 times stronger than that.



The difference between Permanent Magnet AC (PMAC) motors differ from AC Induction motors:

  • In the broadest sense, the major difference is in the rotor itself. In a squirrel cage induction motor, current is induced into the rotor from the field (stator) through the air gap, and conducted through aluminum (or other material) bars, which are most often die cast in the slots of the rotor laminations. In the case of a PMAC motor, the rotor itself contains permanent magnet material, which is either surface-mounted to the rotor laminations stack or embedded within the rotor lamination. In either topology, electrical power is supplied through the stator windings.

The benefits of PMAC motor versus AC Induction:

  • Permanent Magnet AC motors are inherently more efficient due to elimination of rotor conductor losses, lower resistance winding and “flatter” efficiency curve. Due to their synchronous operation, PMAC motors offer more precise speed control. PMAC motors provide higher power density due to the higher magnetic flux as compared with induction machines. Finally, Permanent Magnet motors generally operate cooler, resulting in longer bearing and insulation life.



The technical parameters of permanent magnet vsd screw air compressors:



DHH Power Air Capacity (m3/min) Outlet Cooling Method Driven Starting System Motor/Air end
Model No. kw/hp 0.6Mpa 0.7Mpa 0.8Mpa 1.0Mpa 1.3Mpa Dia.
DRM-10A 7.5/10 / / 1.2 / / G3/4'' Oil or Air Direct Frequency

1.Voltage: 380v/415v-50hz, 380v/220v/400v-60hz,dual voltage

2.Air end: BAOSI/ TMC/ ROTORCOMP / HANBELL are available

3.Eletric motor: IP23/IP54 are available

4.Way of Start:


5. Inverter: Inovance/Powtran/OEM are available

DRM-20A 15/20 2.6 2.4 2.3 2.0 / G3/4''
DRM-30A 22/30 4.5 4.2 3.7 3.2 / G1''
DRM-40A 30/40 6.0 5.7 5.2 / / G1''
DRM-50A 37/50 7.4 6.9 6.5 5.6 4.9 G1 1/2"
DRM-60A 45/60 8.7 8.1 7.5 6.8 5.9 G1 1/2"
DRM-75A 55/75 11.2 10.3 9.5 / 7.8 G2''
DRM-100A 75/100 13.6 13.0 12.8 11.0 9.5 G2'' Air
DRM-125A 90/125 17.2 16.7 15.5 14.0 12.5 G2''
DRM-150A 110/150 21.5 20.8 19.5 17.8 15.5 DN65
DRM-175A 132/175 24.6 24.1 23.2 19.5 17.0 DN65
DRM-220A 160/220 30.2 28.8 27.8 23.0 20.0 DN80
DRM-250A 185/250 34.9 33.2 31.2 27.5 25.8 DN80

Motor Power:11~250(Kw)

Air Delivery:0.7~40.0(m3/min)

Working Pressure:7.0~13.0(Bar)

Cooling Method: Oil cooling

Motor protection class: IP23 / IP54

High-efficiency PM motor, One-piece structure

Compressor photos:



One shaft structure of PMAC motor and airend:IMG_20190525_110131


Inovance/Invt /ABB brand inverters are available




We also have compressor spare parts available:

intake valve/cooler/air filter element/oil separator/oil filter etc.

EA2T4884.jpgEA2T4904timg (1).pngoil separatorEA2T4879

Welcome to visit our factory in Shanghai:



Our Services


Long interval maintenance periods:

Nearly ideal isothermal compression, direct driven method, smart configuration and precision component design and machining, long bearing service life, all of the above essentially extends interval between regular periodical maintenance.

Company Information


Shanghai Royal Machinery Co.,Ltd is a high-tech enterprise which specialized in sales and service of compressed air system equipment, and after-treatment equipment, booster compressor, diesel generator and drying equipment, etc.


We have an experienced team. It not only provide high-quality and high-efficiency compressors for users but also provide the best solution for air system equipment during before-sale, selling and after-sale.


Welcome to contact us for inquires and quotation.


Packaging & Shipping


All of our screw air compressors are packed by export standard plywood case:



Because of screw air compressor package volume and weight, most of our screw air compressors are shipped by sea.


Wecome to contact us for more details, we will offer compressor details, oil free screw air compressor use manual, oil free screw air compressor configuration list, oil free screw air compressor instruction drawings, spare parts list, installation drawings, technical support and maintenance training.



Contact Details
Shanghai Royal Machinery Co.,Ltd

Contact Person: Ms. Sue Chan

Tel: 17301863604

Send your inquiry directly to us (0 / 3000)