EQUIPMENT ANALYSIS: MOBILE COMPRESSORS - FRANCE (December 2014)
Off-Highway Research's Equipment Analyses are a rigorous evaluation of the structure and development of demand for one product in the UK, France, Germany and Italy in the European Service, and in China and India.
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This report concerns the market for mobile compressors in France, and is an update of the report that was published in the European Service in 2009. The mobile compressors concerned have a rated air output from 1.5 m3/min to 45 m3/min and are powered by diesel engines from 10 to 400 horsepower. Some models offer an electric drive option but this is fairly rare.
The helical screw type of machine dominates the French market for mobile compressors. Two rotating screws compress the air between teeth on their surfaces. The two helical screws, or rotors, operate in a sealed chamber and comprise a male with five lobes and a female with six flutes. Air enters through a port at the drive end and compresses the spaces between the lobes and the flutes as they rotate. Designs may vary between manufacturers, since some compressors require an oil pump to lubricate the rotors and cool the air during compression, while others do not. Further differences in design can occur in the way in which the screws are driven, some manufacturers preferring to drive the female rotor with the engine, whilst others favour drive to the male rotor.
The findings presented in this report are based on the existing database of Off-Highway Research, and on an interview programme undertaken in France with leading manufacturers and importers in October 2014.