Kaeser HBS screw blower

The efficiency of the Kaeser HBS screw blower is said to remain consistent across the entire control range, not just at certain specific levels, making the machine an alternative to turbo compressors. This screw blower designed for the low-pressure range offers a 132 to 250 kW power range, with flow rates from 60 to 160 m³/min and differential pressures up to 1100 mbar. They are said to be up to 35% more efficient than conventional rotary blowers and also deliver significant energy advantages.

The blower block of the HBS screw blower is driven by a loss-free direct drive, meaning the HBS combines highly efficient operation with a low-maintenance requirement. A frequency converter is integrated for dynamic adjustment of the flow rate to actual demand.

As assurance that the predicted high savings are actually achieved, Kaeser guarantees the power consumption per unit of flow rate (specific power consumption in kW per pro m³/h) in accordance with ISO 1217, Annex E.

The integrated Sigma Control 2 controller is designed to ensure operational reliability and smart communication via integration into process control systems. The Sigma Air Manager 4.0 master controller is recommended for blower stations with multiple blowers as it features control and regulation algorithms specially developed for the needs of low-pressure applications. This enables even greater energy savings and simplification of automation.

The HBS screw blowers are suitable for applications with especially high energy requirements, such as production of aeration air for wastewater treatment and bioreactors, as well as for flotation and fluidisation.