Characteristics of permanent magnet frequency conversion air compressor
Ultra-low temperature rise design, the compressor allows long-term stable operation at ultra-low frequency, adopts closed-loop vector control system, faster control, more precise speed regulation, when the frequency is reduced by more than 50%, the compressor unit can still maintain high-efficiency operation, stable pressure, and precise pressure control Fluctuation within 0.01MPA.
Model: DM-20A
Free air delivery: 2.3m3/min
Working pressure: 8 bar
Screw air end rotor lobe: 5:6
Brand of screw air end: Rotorcomp
AB+ series( 6 pcs SKF bearings)
Control: PLC
Driven: direct coupling
Cooling: by air
Electric motor: Permanent Magnet
type 20hp 15KW 230V/60hz/3ph,
protection level IP65, oil cooling
Discharge temperature: less than ambient +8 ℃
Noise: less than 65 dB(A)
Air outlet size: G3/4”
Dimension: 1062*690*1000mm
Weight: 236kg
Technical Parameter
| Model | Volume flow (m3/min) | Power (kW) | Noise (db) | Outlet diameter | Dimension(mm) | Weight (kg) |
| 6bar | 7bar | 8bar | 10bar | 13bar | Lenght | Width | Height |
| DM-10A | / | 1.3 | 1.2 | 1 | / | 7.5 | 63 | G3/4 | 895 | 590 | 970 | 190 |
| DM-20A | 2.55 | 2.4 | 2.3 | 2.0 | / | 15 | 65 | G3/4 | 1062 | 690 | 1000 | 236 |
| DM-30A | 4.5 | 4.15 | 3.7 | 3.2 | / | 22 | 68 | G1 | 1330 | 830 | 1265 | 410 |
| DM-40A | 6 | 5.7 | 5.2 | / | / | 30 | 68 | G1 | 1330 | 830 | 1265 | 520 |
| DM-50A | 7.35 | 6.9 | 6.5 | 5.6 | 4.9 | 37 | 69 | G1 1/2 | 1500 | 940 | 1415 | 655 |
| DM-60A | 8.7 | 8.1 | 7.5 | 6.75 | 5.9 | 45 | 70 | G1 1/2 | 1500 | 940 | 1415 | 730 |
| DM-75A | 11.2 | 10.3 | 9.5 | / | 7.8 | 55 | 70 | G2 | 1600 | 1060 | 1470 | 950 |
| DM-100A | 13.6 | 13 | 12.8 | 11 | 9.5 | 75 | 72 | G2 | 2000 | 1120 | 1590 | 1070 |
| DM-125A | 17.2 | 16.7 | 15.5 | 14.0 | 12.5 | 90 | 72 | G2 | 2000 | 1120 | 1590 | 1221 |
| DM-150A | 21.5 | 20.8 | 19.6 | 17.8 | 15.5 | 110 | 72 | DN65 | 2400 | 1630 | 1980 | 1950 |
| DM-175A | 24.6 | 24.1 | 23.2 | 19.5 | 17 | 132 | 72 | DN65 | 2400 | 1630 | 1980 | 2150 |
| DM-220A | 30.2 | 28.8 | 27.8 | 23.0 | 20 | 160 | 72 | DN80 | 2800 | 1828 | 2150 | 3620 |
Product feature
1.Rotor
Rotors are asymmetric in profile, backed up by ball bearings and roller bearings. Operates at a low speed, thereby low in abrasion and maintenance expenses, air end is long service life.
2.Control panel
Intelligent microcomputer-based control technology can monitor and control in all aspects the complete machine following your instructions, remote control realizes unattended operation.
3.Oil filter
Rotary filters are applied to completely remove the impurities in the lubricating oil, easy to replace and free of oil impregnate.
4.Air filter
Original imported filter material,high efficiency three levels air separator, keep internal cleanliness of the system effectively.
5.Cooler
The cooler is located separately from the internal isolation of the chassis,so that the cooling fans would suck air with normal temperature from outside.Compared to cooling by using the air of 45~65°Cinside the chassis,the cooling fans could save over 30% energy when the temperature of the air outlet decreases 3~8°C.
6.Excellent quality of motors
Professional customized high efficiency permanent magnet motor,Compared to normal motors, Permanent magnet motor more excellent energy saving.protection grade:IP65
7.The air end of compressor is of high efficiency and long life
Excellent SKF bearings are adopted for compressor air end to better improve their use efficiency,reduce abrasion.and to realize long term operation with no faults,low noise and long life.
