Kaishan PMV (Permanent Magnet Variable Frequency) rotary screw air compressors

The generation and application of clean, food-grade compressed air is a vital part of most manufacturing and handling processes. It is even more critical in the food processing industry where the slightest contamination can be a very expensive and disruptive problem.

Many food manufacturers regard compressed air merely as an energy source in their production processes. As a result, the medium is not given sufficient consideration in the measures for hazard analysis and risk minimisation.

Typical applications for compressed air in the food industry are processes such as cleaning, filling, mixing, spraying, cutting, transporting and packaging. During these different work steps, depending on the application, there is direct and/or indirect contact between the compressed air and the product.

New PMV (Permanent Magnet Variable Frequency) rotary screw air compressors use special FDA-certified, food-grade, synthetic lubricants to eliminate the chance of contamination through the compressed air plant and line to deliver clean, dry air power at the application end.

Developed by Kaishan, these new-age compressors are also suitable for food manufacturers wanting to reduce the cost of compressed air generation with a low-maintenance machine.

Kaishan’s range of Permanent Magnet Rotary Screw Compressors is claimed to deliver up to 50% energy cost savings over conventional compressors with equal or greater output.

From 250 to 15 kW, these advanced machines use systematic optimisation of the airends through permanent magnet drive motors and variable speed drive technology to achieve higher efficiency at all operating speeds. This also results in good bearing life and long-term operation.

The combination of advanced PMV 2-stage technology and variable speed control means the system only operates at the level required to generate air for a given application at any time from stop to maximum output. This controlled flexibility is suitable for food processors with variable needs in compressed air power for a variety of manufacturing, processing, packaging and handling operations.

Kaishan Compressors has experience in providing food-grade air compressors and systems for use in processing, conveying, packaging and other operations. Custom-designed and -made compressors include marine-based machines for aquaculture and specialised models for grower quality control lines.

A leading Australian egg brand has recently installed a Kaishan 75 kW PMV compressor to run its processing, grading and packaging facilities ensuring efficient, contaminant-free operation with energy cost savings compared to the fixed speed machine that was replaced.