screw blowers for aeration

Screw blowers for wastewater aeration

More air for your money

Kaeser screw blowers are available in sizes up to 335 hp and flows to 5650 cfm and pressures from 4.4 to 15 psig. Screw blowers have significantly better isentropic efficiencies than lobe or multistage centrifugal blowers. Further, the Kaeser screw blower produces a near-constant specific performance in comparison to all technologies, including other screw blowers. The combination of our Sigma Profile airend, flow-optimized components, superior power transmission and drive components, ensures exceptional performance guaranteed by Kaeser in accordance with the stringent requirements of ISO 1217. 
 
  • High-efficiency and low-maintenance blower systems – dual shaft SIGMA blower blocks
  • Optionally available with wye-delta starter (STC) or frequency converter (SFC) 
  • Plug-and-play complete package with power supply, SIGMA CONTROL 2 controller.
screw blower specifications
Performance specifications as per ISO 1217 Annex C for STC version, Annex E for SFC version

Reduce maintenance costs

Kaeser blowers are designed from top to bottom to minimize maintenance costs. A fully sealed cabinet protects both electrics and mechanical components from dirt, dust and moisture. Thermostatically controlled positive ventilation maintains optimal operating temperatures. Fluid taps and filter housings are easily accessed by removing only one panel. Double vibration isolation keeps all electrical and process connections tight. The rugged reliability of Kaeser blowers means fewer lifetime repairs.

Increase uptime with smart controls

To protect your investment and ensure the most efficient operation possible, all of our screw blowers come standard with our Sigma Control 2™ and a full complement of sensors. This intelligent controller monitors a wide range of operating parameters and tracks preventive maintenance intervals and provides notice when PMs are due. It also shuts the unit down to prevent damage, and signals if immediate service is required. Built in Ethernet connection, IP address and web server enable remote monitoring and easy integration into plant SCADA/IoT systems

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