Two Compressors, One Cabinet


Introducing Kaeser’s latest innovation in progressive air system technology – the new 2-in1 HSD compressor! It is the first of its kind featuring two independently operating compressors in a single enclosure. These new packages are available from 500-650 hp, and deliver flows from 1632-3002 cfm and pressures from 100-217 psig. Each HSD incorporates two individual compressor units including a motor, Sigma Profile airend, separator aftercooler, draintrap and filtration. Because each module is a complete compressor – and not just two airends stacked together – the HSD provides maximum part-load efficiency, built-in redundancy, and reduced installation costs.

HSD compressor units are started one after another to reduce inrush current and protect against network overload. Both compressor units have dedicated Sigma Controls connected via Profibus for energy efficient sequencing and fully automatic monitoring of critical operating and maintenance indicators. Plus with the Sigma Frequency Control option, the HSD is not only the largest variable frequency drive in its class but it also doubles the flow range of previous models.

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