Kaeser CSG.1 oil-free rotary screw compressors

Kaeser Australia has released its latest class 0 oil-free compressor. The CSG.1 rotary screw compressors have air flow rates ranging from 4 to 15 m³/min and pressures up to 11 bar. Users are offered the choice of air- or water-cooling, and can select an optional integrated refrigeration dryer or an i.HOC (heat of compression) dryer.

The CSG.1 can be specified as a fixed speed, fixed flow rated machine or, for applications with fluctuating compressed air demand, variable speed controlled SFC versions are available with IE5 Ultra-Premium Efficiency synchronous reluctance motors.

The risk of potential product contamination by oil from the rotary screw compressor is evaluated and minimised by means of an HACCP analysis and certified by the TÜV Rheinland for a residual oil class 0 certificate in accordance with ISO 8573-1.

The CSG.1 has also been certified according to ISO 22000:2018, which covers the manufacture of food and beverage equipment. To further formalise the supply chain’s integrity, users can also option the CSG.1 with pharmaceutical, food or engineering industry certification packages. Certification is also available that the machine is free of silicone contamination, as per VW PV 3.10.7.

Kaeser’s Sigma Profile rotors now feature a wear-resistant PEEK coating, which results in an airend that will exhibit no air flow loss during its lifetime. Developed in-house, the coating has three layers; nanoceramic, PEEK basecoat and topcoat. This coating is biocompatible, FDA-certified and compliant with European requirement VO 1935 for food contact materials, making it suitable for use in the food and pharmaceutical industries.