1970-02-01

Hydraulic Hoist Units for Cranes 700726

This paper deals with hydraulic hoists used in an “open loop” hydraulic system, operated by a control valve having the work ports open to tank in neutral. The hoists discussed employ spur gear reductions and antifriction journal bearings throughout.
Factors to be considered in the selection of the hydraulic motor and control valve for a hydraulic hoist are discussed and apply to all hoists used in an “open loop” system. A basis for establishing the rated capacity of a hydraulic hoists is suggested and can be used for any type of hydraulic hoist.

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