Kaeser Mobilair 500-2 mobile compressor

The Mobilair 500-2 from Kaeser Compressors is said to combine the advantages of a two-stage dry-running oil-free rotary screw compressor with those of a mobile unit. It supports the production of large volumes of oil-free compressed air where portability is needed in industries from mining, construction and refineries to the production of food, beverages, chemicals and pharmaceuticals.

The M500-2 has a two-stage dry running rotary screw compressor. Due to a coating that withstands temperatures up to 300°C, the machine’s sandblasted, phosphate-treated rotors are said to show no measurable signs of wear after years of operation.

A large fuel tank further ensures the M500-2 can run for two consecutive shifts without the need to refuel, and can run continuously when connected to an optional external fuel tank. The onboard Caterpillar C18 diesel engine is rated at 447.5 kW.

The M500-2 includes an integrated Sigma Control mobile controller which automatically adjusts the motor speed to the exact pressure set-point. Compressed air discharge temperature can also be selected via the controller.

Weighing almost 12 tonnes, this portable compressor also comes as standard with a spark arrestor and motor shut-off valve for installation in refineries and is mounted on a supporting chassis with parking brake so that it can be quickly and safely positioned anywhere. It also features crane and lashing eyes, as well as forklift pockets.

The M500-2 delivers compressed air from 4 to 10.3 bar. Maximum free air delivery varies from 38 m³/min (10.3 bar) to 45.8 m³/min (6.9 bar).