Mobile compressor
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A 75 cu ft per minute mobile compressor launched on the UK market by George Cohen is sufficiently light to be easily manoeuvred by one man. Called the Unitair 75 and made by Typower Ltd. the portable compressor has a Perkins 4.154 four-cylinder engine in which half the number of cylinders have been converted to act as our compressors.
At a full-load speed of 2,800 rpm • the Unitair gives a free air delivery of 75 cu ft per minute at a working pressure of 100 psi. This can supply enough for two light-to-medium tools.
A 10gal fuel tank is mounted on the air receiver chassis and the two wheels of the unit have independent torsion bar suspension. Tyres are 5.20-10 heavy duty and there are over-run brakes with hand lock, an adjustable jockey wheel, towing eye and strong drawbar for towing. Electrical equipment includes rear lights and a 12V heavy duty battery.
Overall dimensions are 6 ft 10.5in. long by 4 ft 3.5in. wide and 3 ft 11 in. high. Weight is 1,320Ib.
Marketed by: George Cohen Machinery Ltd, Wood Lane, London W12.