One of the main benefits of choosing a screw compressor is that, in comparison with piston compressors, there are no valves or other mechanical forces that can cause the compressor to become unbalanced. This allows a screw compressor to provide quality air at high operational speeds with a larger flow rate,. .
Lubricated rotary screw air compressors are used every day across the world in a wide variety of applications, from the small 2 kW model you may. .
Our range of injected screw compressors are available with fixed or variable speed drives. The benefits of both depend on the unique demand of your business. Fixed speed compressors. .
CompAir's rotary screw range operates between 4kw to 250 kW (5 to 335hp), producing working pressure at 5 bar to 13 bar (72 to 188psi). [pdf]
Henry C. Sergeant started the Sergeant Drill Company to manufacture a rock drill he had invented, which included using compressed air to move the drill’s piston onto the steel in a hammering motion. .
Peter Sweeny, building on Robert Beart's earlier design, made a huge advancement in rotary drill technology, enabling almost continuous drilling. His new design also improved on hole cleaning. .
Charles Burleigh, John W. Brooks, and Stephen F. Gates patented a mechanical drill meant to be used on the Hoosac tunnel: the compressed air Burleigh drill. The tunnel spurred several innovations in drilling technology, including the earlier Couch/Fowle drill.. .
Edward A.L. Roberts was awarded a patent in November 1866 for what would become known as the Roberts Torpedo, a device for increasing. [pdf]
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