Atlas Copco GA 37-55 VSD, 50-75HP


Two-stage high dust, heavy duty inlet filter
Inlet filter differential pressure indicator
Air inlet valve
Patented compressor screw elements:
Vibro-acoustic optimization
Model analysis
Finite element modeling
Sound intensity scanning
Patented direct drive
Energy saving integrated Variable Speed Drive with 80% turndown
D-Flanged TEFC high efficiency variable speed drive motor
Dedicated low noise radial cooling fan with TEFC motor
ASME coded air/oil separator tank
High efficiency air oil separator element
Differential pressure oil system with oil cooler
Oil stop valve
Minimum pressure valve
Check valve
Thermostatic oil cooler by-pass valve
Oil filter inverted spin-on type
Oil level indicator
Factory oil fill
Aftercooler and high efficiency moisture separator
Aircooled units have coolers constructed of welded aluminum
Control Cubicle with solid state variable frequency drive converter and control transformer
Main base frame with fully enclosed metal floor
Vibration isolated compressor/drive assembly
Full acoustical sound attenuating enclosure
Zero air loss electronic drains
Discharge air service valve
Elektronikon® Module (see Elektronikon® Control Module description)


All of the Pack unit standard equipment plus integrated refrigerated dryer including:

Interconnecting piping and wiring
SAVER Cycle – energy saving dew point mode
Zero loss electronic drain
Dew point monitoring and indication on Elektronikon® display