7.5kw fixed speed air cooling screw air compressor for nitrogen generator 380v/50hz

7.5kw permanent magnet vsd screw air compressor voltage 380v/50hz 60hz

• 7.5KW/10HP
• voltage: 380v/50hz, 380v/60hz
• pressure: 8bar
• air flow: 1.2m3/min; 42.5cfm
• permanent magnet motor
• inverter high frequency
• smart air compressor, energy saving

• 11KW/15HP
• voltage: 380v/50hz, 380v/60hz
• pressure: 8bar
• air flow: 1.6m3/min; 56.5cfm
• permanent magnet motor
• inverter high frequency
• smart air compressor, energy saving

• 15KW/20HP
• voltage: 380v/50hz, 380v/60hz
• pressure: 8bar
• air flow: 2.3m3/min; 81.2cfm
• permanent magnet motor
• inverter high frequency
• smart air compressor, energy saving

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:

We also have compressor spare parts available:

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

Shanghai Royal Machinery Co.,Ltd is a professional company of industrial air compressors, air treatment and air compressor spare parts, with engineers and sales people who have over 8 years experience, Royal Machinery has two business divisions, one is our own brand products, the other brands are Ingersoll Rand and Compair products. We have been marketing industrial compressed air equipment to global market since 2017 and the main assembling plants cover more than 50,000 square meters and 320 employees.

The range of our compressors supplying start from the smallest compressors used by individuals to very large compressors used in heavy industrial applications. We started the business as a close partner to our customers, our sales team can provide you competitive price with high quality products, with our customers supporting, our team will get all the orders fulfilled on time and provide you excellent after-sales service. Our product range represents the most comprehensive portfolio of compressed air equipment offered for thousands of applications in the Oil, Textile, Food, Marine, Mining and many other industries. Our products consist of medium and high pressure reciprocating compressors, oil-injected screw compressors, oil free screw compressors, vane compressors, centrifugal compressors, portable compressors, CNG compressors and CNG related equipment, also high pressure scuba air compressors.

Our mission is to bring China assembled compressors of good quality and service, with attractive price for all the customers all over the world. You are welcomed to be developed with us together for a fruitful future.