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All Categories > Kaeser Compressors > Energy Savings & System Analysis > Energy Saving  

Energy Saving

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Sigma Profile- More Air per Kilowatt

Kaeser's proprietary Sigma Profile was introduced in 1975. It is up to 20% more efficient than conventional screw designs. Kaeser continues to refine and improve the airend design, and today's optimized Sigma Profile airends offer unparalleled performance.

Larger airends turning at slower speeds are more efficient and deliver more compressed air for the same drive power. Kaeser's design philosophy is to develop slower running airends with optimized profiles that can pay for themselves in a short period of time with increased energy savings.
  • Up to 20% more air per kilowatt
  • Excellent airend inlet channel flow characteristics
  • Long operational life due to precision-aligned, top-quality bearings
  • Airends are precision machined to very fine tolerances on high-precision grinding machines for increased performance reliability
Lower Long Term Costs

Energy costs are a significant portion of any compressed air system's total lifetime cost. In fact, the amount of energy required to run a compressor for just one year can exceed the compressor purchase price. Over a period of 10 years, energy normally totals 70% of the overall costs.
Since Kaeser's energy-saving screw compressors deliver up to 20% more air per kilowatt, the cost-efficient choice is clear.


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