Our variable speed air compressor is equipped with a high-performance air end, variable frequency motor, and advanced variable frequency drive system. Air production is adjusted by changing the motor speed. When air demand reduces, the energy consumed by the motor also reduces.
Variable frequency starting is adopted. The starting current is small and no impact is caused to the grid, which greatly extends the service life of the equipment. Also, stable air pressure is provided while energy consumption is reduced. In addition, our variable speed air compressors feature low rotation speed and low noise. They are widely used in the pneumatic tool, instrumentation, packaging machine, textile machinery, beer making, electronic printing, mining, aeronautics and astronautics, as well as other industries.
SEVSD15-315 (15-315KW) Series
1. Power: 20-425HP, pressure: 0.7-1.3MPa
2. Europe's top compressor air end, variable frequency motor, and ABB frequency converter are adopted; air consumption change is automatically tracked and the motor speed is adjusted correspondingly; energy consumption is reduced by 30%
3. Variable frequency motor: protection class of IP55, insulation class of F, service factor SF=1.2
4. The variable frequency starting greatly reduces the impact caused by instantaneous current on the grid, thus effectively extending the service life of machine
5. The adopted PLC intelligent control system supports control mode selection, operation status display, parameter presetting, and fault history query.
6. There is a MODBUS 485 interface reserved for remote monitoring.
7. Type of cooling: air cooling and water cooling
8. Product of different working voltage and frequency can be customized, 120V, 220V, 240V, 380V, 400V, 415V, 440V, 460V, 575V, 50Hz, and 60Hz.
|MODEL||POWER||PRESSURE||AIR FLOW||NOISE LEVELdB(A)||OUTLETCONNECTION||WEIGHT(KG)||DIMENSIONL×W×H (mm)|
Note: 1. FAD is measured according to GB/T6430-2002
2. Outlet temperature= Ambient temperature + 8-10℃
|Compressor Air End
Our variable speed air compressor is equipped with a European compressor air end with optimized molded lines. The air end is matched with high quality SKF heavy-load axial and radial bearings. Three oil seals are used to eliminate leakage, ensuring that the air end has excellent performance as well as high reliability and durability.
|PLC Intelligent Display System
Easy to operate, the PLC intelligent display system is able to display the operating state of the air compressor in real time. It is also used to display and control the operation, maintenance, alarm, and fault information. In addition, the system is designed with a backup output interface for multi-unit interlocking control and remote monitoring.
a. This intake valve is able to perform 0-100% stepless adjustment on the displacement, making air supply consistent with air consumption, thus achieving the best energy-saving effect
b. The integration of non-return system, on-off system, and pressure regulation system not only guarantees the maximization of each function but also makes the structure compact and simple.
|Variable Frequency Motor
a. Protection class: IP55, insulation class: F
b. Equipped with SKF heavy-load bearing
c. Output efficiency up to 96%, service factor SF=1.2
d. Low noise, long service life
e. Voltage and frequency can be customized
|ABB Frequency Converter
a. The frequency converter can adjust motor speed according to the actual air consumption, thus saving energy.
b. Energy consumption is reduced by 30% or more.
c. Variable frequency starting greatly reduces the impact on the grid and machine, eliminates peak current, and prolongs the service life o the machine.
d. Power frequency starting and variable frequency starting are available for choice. This ensures continuous operation of the variable speed air compressor to the maximum extent.
b. Oil filter from German MANN
c. Cyclone type oil and air separation system
d. Differential pressure sensor
b. A MICROCHIP controller chip is used and a RS485 interface is provided. Remote monitoring can be realized via MODBUS.
c. A variety of control signals, including pressure, temperature, etc., are collected for the monitoring of the compressor’s operating state. They also provide help for fast troubleshooting.
Efficient Cooler (Air-Cooled)
b. Integrating a plate-fin heat exchanger, a compressed air heat exchanger, and an oil heat exchanger, the cooler is compact and small.
c. Heat transfer area per unit volume is three times that of shell-and-tube heat exchanger, ensuring high heat transfer efficiency.
Unique Automatic Belt Tensioner (Belt Drive)
b. The tensioner is easy to maintain and it makes belt replacement easy. Belt replacement can be completed within 10 minutes.
Efficient Flexible Coupling (Direct Drive)
b. The coupling keeps the force balance of the motor and compressor air end, making the compressor operation more stable
c. No energy consumption in transmission
No Leakage and Shock Absorption Design
b. Adopting double-layer protection, the oil air pipes are resistant to high pressure and temperature.
c. The drive structure section is equipped with a hidden shock absorption device which effectively reduces vibration. Under the same operating environment, noise is lowered by 3 to 5 dBA.
Specially Designed Air Cooling System
b. Compared with its competitors, this cooling system is 2 to 3 times more energy-efficient and the noise it produces during operation is lowered by 2 to 3 dBA.
Efficient Oil Air Separator
b. After processed by this oil air separator, the oil content of compressed air is less than 3PPM.
c. The initial oil-air separator core pressure difference is less than 0.02MPa, so the separation resistance is small and energy consumption is low.
d. The oil air separator is easy to operate and its service life is more than 4,000 hours.
b. The variable speed air compressor can be directly applied after pipes are connected and power supply is turned on.
c. Door panels are equipped with sound-absorbing sponge. For the 22KW variable speed air compressor, the noise it produces during operation is lower than 68dBA.
Our VSD series variable frequency screw air compressor uses pressure sensor to sense the actual pressure and air consumption of the system. Through the cooperation of electrical control and frequency control, motor speed is regulated in real time without changing motor torque. Compressor speed is changed to respond to changes in system pressure and thus maintain steady system pressure to realize on-demand output of high-quality compressed air.
When air consumption is reduced, the compressed air supplied by the air compressor is excessive. Then, the compressor speed is reduced to decrease the compressed air output. If the air consumption is increased, the motor speed is improved to increase compressed air supply so as to keep stable system pressure.
Our variable speed air compressor is equipped with an electronic frequency conversion system. Precision air consumption matching and pressure control techniques not only save energy by 30% but also bring many benefits like stabilizing pipeline pressure, eliminating peak current impact, etc., providing modern industrial and mining enterprises with energy-saving solutions.
1. Steady Pressure
2. Variable Flow Control
The ABB frequency converter adopted is able to adjust the rotation speed of the motor in real time according to the actual air consumption, so as to make the power consumption of the air compressor match with the power required by actual air compression. In case of high air consumption, the pressure remains unchanged, but the speed compensates automatically to meet the supply needs. When the air consumption is low, pressure is maintained constant and speed is automatically reduced to supply compressed air which is just enough.
|3. No Current Impact during Starting
The air compressor is started via frequency converter. The maximum starting current is 1.2 times the rated current while the starting current is at least 6 times the rated current for power frequency start. Hence, our variable speed air compressor exerts little impact on the grid during starting. It enjoys reduced stress and consequently prolonged service life.
4. High Economical Efficiency
VSD Air Compressor | Electric Motor Driven Compressor | Compressed Air Unit