New GA VSD+ range of compact, oil-injected rotary screw compressors can reduce energy consumption by 50 percent compared to a traditional load/unload compressor of the same type. The new 7-15 kW (10-20 hp) GA VSD+ range, including a full feature version with an integrated dryer, is also 15 percent more efficient than the previous generation and offers a 12 percent improvement in free air delivery.
The new range was designed with energy efficiency and customer needs in mind, with a motor that significantly exceeds the latest NEMA Premium efficiency requirements. Built upwards, like a mini skyscraper, the motor and drive train share a single drive shaft and are vertically aligned, reducing the total footprint by up to 55% compared to other compressors on the market. In addition, the motor drive train is completely enclosed, resulting in a NEMA 4 rating for protection against dust, debris and water. A single closed oil-circuit cools the motor and lubricates the element and bearings, resulting in a very reliable and compact compressor that is also extremely quiet (down to 62 dBA).
The result is a revolutionary air compressor that saves space and energy while simultaneously achieving higher air capacities. Additional improvements include a more efficient fan, a robust air intake system that eliminates blow-off losses and advanced electronic components.