Kaeser ASD SFC rotary screw compressors

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Kaeser's 22 kW ASD 40 SFC and ASD 40 T SFC rotary screw compressors produce free air deliveries between 1.02 and 4.58 m³/min, utilising a range of energy-saving features.

The product's screw compressor block features Kaeser's Sigma Profile rotors, which are flow optimised for increased efficiency. They are powered by efficient IE3 drive motors that exceed Australian MEPS regulations for three-phase electric motors.

The 1:1 direct drive motor drives the compressor screw block directly without transmission loss via a maintenance-free coupling, providing good performance and minimising maintenance. Idling periods are minimised by the industrial PC-based Sigma Control 2 compressor controller, which provides efficient system control and monitoring.

Featuring variable speed control, the volumetric flow rate can be adjusted within the control range according to pressure. As a result, operating pressure is maintained to within ±0.1 bar. This allows maximum pressure to be reduced, saving energy and money.

The drive is housed in its own control cabinet to shield it from the heat of the compressor. A separate fan keeps operating temperatures in the optimum range to ensure maximum performance and service Iife.

The ASD T model features an integrated refrigeration dryer, which provides high-efficiency performance due to its energy-saving control.