Kaeser brings green tech to low pressure screw blowers

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  • Plant & Equipment

Kaeser Compressors screw blowers Kaeser Compressors screw blowers Kaeser Compressors screw blowers

Kaeser Compressors has applied its energy-efficient technology to three sizes of low-pressure screw blowers — the DBS, EBS and FBS series.

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The company says the new German-made models are up to 35 percent more efficient compared to conventional rotary blowers, "yet they also outclass other comparable screw and turbo blowers through their significant energy advantages".

The DBS, EBS and FBS series screw blowers deliver flow rates from 6 to 67 m3/min with a pressure differential up to 1.1 bar. Drive powers range from 22 to 110 kW.

The products feature an integrated Sigma 2 Controller which provides continuous and comprehensive monitoring designed to help maintain optimum performance and provide a dependable supply of quality compressed air.

"The rotors are uncoated so users can be assured that their outstanding efficiency remains intact even after years of use," Kaeser says.

"The data provided for the effective total energy consumption and usable flow capacity correspond precisely to the machines’ actual performance (as per the conservative tolerances provided for by Standard ISO 1217; measurements validated by TÜV-Süd).

"This ensures full transparency, with the savings calculated as a result of investing in the equipment actually being realised." 

‘Traffic light’ LED indicators show operational status at a glance. Along with plain text display, 30 selectable languages and soft-touch keys with icons, the Sigma Control 2 offers fully automated monitoring and control.

Where multiple blowers are being used, additional optimisation can be achieved by incorporating the Sigma Air Manager 4.0 (SAM 4.0) master controller, Kaeser says.

"SAM 4.0 delivers more than just optimised blower air system efficiency," it says. "Thanks to its high level of data integration and multiple interface options, it can be easily integrated into advanced production, building and energy management systems, as well as Industry 4.0 environments."

The new models feature an internal cooling system that is more efficient than the use of oil pumps and oil coolers. A new sealing concept is designed to ensure long-term seal integrity, without the need for vacuum pumps.

"The durability and reliability of the machines is also enhanced as a result of eliminating the need for auxiliary equipment and circulating oil lubrication," Kaeser says.

"Cooling and process air are drawn in separately from outside the machine enclosure, which not only provides greater usable air mass flow for the same power consumption, but also ensures optimum cooling and efficiency."

The company says the new screw blower technology will assist those in sectors such as the food and beverage, pharmaceutical, chemical, pulp and paper, textile and construction materials industries, and applications such as wastewater treatment, pneumatic conveying systems and power generation.


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