Sullair Australia VOC/VSD hybrid compressor

Sullair Australia has released an energy-efficient VOC/VSD hybrid compressor. The VOC/VSD’s variable speed drive (VSD) lowers power consumption at the top end of capacity and maintains constant system pressure while the variable output compressor (VOC) air end extends part-load energy savings.

By combining the VOC/VSD technologies, the company achieves high downturn and so improves system flexibility and efficiency. The VOC/VSD’s fusion of VSD and VOC technologies delivers optimal air-end efficiency for compressed-air applications with widely varying loads.

Individually the VOC has a turn down of 50%; VSD as much as 30%. The VOC/VSD hybrid air compressor can extend the range of down turn to 15% while keeping the pressure stable and power consumption to a minimum. Through its ability to automatically vary both the motor speed and the compressor’s air-end length, the VOC/VSD’s efficient operating range is particularly broad.

The VOC/VSD uses Optimal Flux Technology which allows precise and dynamic drive-to-motor calibration, delivering optimum performance and efficiency throughout the VOC/VSD’s operating range. The technology reduces motor temperatures by up to 11°C, thereby permitting greater turn down, eliminating forced ventilation and improving motor efficiency and longevity.

The best way to determine if the VOC/VSD hybrid unit is the appropriate solution is by conducting an air audit. If there are huge changes in demand at a particular site with, for example, a peak shift in the morning and a light shift in the afternoon or night shift, the VOC/VSD may be beneficial in maximising efficiency and energy savings.

The VOC/VSD can be built to the user’s specifications by the company’s Customised Engineering team and fitted with a range of extras to suit every application.