Kaeser ASD 40 SFC and ASD 40 T SFC rotary screw compressors

Kaeser has recently expanded its ASD SFC series of Sigma frequency controlled rotary screw compressors – now available from 22 to 30 kW.

The 22 kW ASD 40 SFC and ASD 40 T SFC rotary screw compressors from Kaeser produce free air deliveries between 1.02 and 4.58 m³/min. Like all other models in the ASD range, these models save energy in multiple ways.

At the heart of every ASD series rotary screw compressor lies a premium quality screw compressor block featuring Kaeser’s Sigma Profile rotors. The Kaeser screw compressor block is equipped with flow optimised rotors for high efficiency. All Kaeser rotary screw compressor blocks are powered by premium efficiency IE3 drive motors for maximum performance and reliability that complies with, and exceeds, prevailing Australian MEPS regulations for three-phase electric motors. The motor drives the compressor screw block directly without transmission loss via a maintenance-free coupling.

Costly idling periods are effectively minimised with the ASD series due to the inclusion of the industrial PC-based Sigma Control 2 compressor controller that ensures efficient system control and monitoring.

The ASD SFC models feature variable speed control — the volumetric flow rate can be adjusted within the control range according to pressure. As a result, operating pressure is precisely maintained to within ±0.1 bar. This allows maximum pressure to be reduced, which saves both energy and money.

Premium compressed air quality can be further achieved by opting for an ASD T model, which features an integrated refrigeration dryer.