High-torque Hydraulic Motor
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response to demands for a higher)ced hydraulic motor. Chamberlain 3stries, Ltd., Staffa Works, Argall nue, London, E.10, the manufacturers the Staffa range of hydraulic equipit, have introduced the Mark VIII, a short-stroke version of their Mark IV -cylinder unit.
common with other hydraulic ors made by the firm, the crankcase cylinders form a monobloc casting the five cylinders arranged radially each fitted with a detachable head. new model is fitted with 4-in. diameter pistons with a ,stroke of 2.4 in. and operates at a normal working pressure of 2,000 p.s.i. It has a maximum continuous output torque of 3,600 lb.-ft. and a maximum peak of 5,400 lb.-ft. The speed range is from 0-150 r.p.m. and the driving shaft is designed for an overhang weight of 6 tons. For starting and peak
loading the pressure can be increased to 3,000 psi.