Variable Speed Compressor

Description

With an advanced SynRM motor-drive combination, the SFC 18 delivers 31 to 156 cfm with superior part-load efficiency, longer service life, and reduced maintenance costs. 

 

Developed in partnership with Siemens and specifically designed to work with Kaeser’s SFC models, the SynRM motor-drive combination achieves top tier IES2 classification. This results in better specific performance, especially in the part-load conditions that call for variable speed compressors. 

 

SynRM motors do not use aluminum, copper, or expensive rare earth metals in the rotors. Instead, they are made of electrical steel and feature a special profile. With this unique rotor design, the motors run cooler - resulting in lower bearing and winding temperatures and increased motor life. And because there are no magnets in the rotor, motor service is safer and easier. 

 

To further enhance overall sustainability, SFC T models with the integrated refrigerated dryers have been upgraded with R-513A, a non-flammable, non-toxic advanced formulation refrigerant. R-513A has 56% lower global warming potential (GWP) compared to the current US standard (R-134a). This, combined with Kaeser’s advanced heat exchanger design, reduces refrigerant requirements without compromising dryer performance. 

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