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Energy saving Hitachi scroll air compressors

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Hitachi scroll compressors are designed for energy efficiency, long life, ease of use and extended service intervals.

Depending on the size (2.2 kW to 22 kW), Hitachi scroll compressors have one to four heads with each compressor head consisting of an oil-free compression chamber with a scroll element generating compressed air. 

When one of the compressor heads is taken offline, the machine can continue to operate with the remaining heads; this innovative design extends the scroll life.

The Hitachi scroll compressor offers two modes of the operation – standard pressure control (similar to conventional pressure switch) and multi-drive control mode. 

Under pressure switch control (P-mode), the compressor stops operating when maximum pressure is reached, and restarts when the pressure drops to the specified recovery pressure. 

In multi-drive mode, operation of the compressor heads is modulated automatically, matching air supply to the compressed air requirement. The delivery pressure is controlled by the number of working heads, meaning that pressurising to the maximum pressure is not necessarily required, thereby saving energy. For instance, a 15 kW unit, running at 50% capacity will use 36% less energy compared to the unload type. 

Hitachi scroll compressors feature a space saving design, and can be installed flush on the back and right hand sides. Key benefits of the scroll compressor include easy operation with electronic control; extended service intervals and low lifecycle cost; low noise and vibration; optional 1 MPa discharge pressure in selective models; oil-free mechanism for better air quality; and suitable for ISO 14001 factories.

Hitachi scroll air compressors are available from Hurll Nu-Way Pty Ltd .

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