GD Series motors

DESIGN AND OPERATION OF THE TWO SPEED SYSTEM
Dual displacement is achieved by a variation of theshaft eccentric cam. The displacement controlsystem is based on a hydraulic device, whichactuates a hydraulic control valve mechanism toselect minimum or maximum displacement. Thedual displacement mode allows the motor toreduce the displacement down to the 10% of themaximum, hence making the speed ten time higher

GENERAL CHARACTERISTICS AND FEATURES
The GD series is a crankshaft design radial pistonhydraulic motor based on a nine-cylinder design.These motors use several standard components, partsof well-proven constant displacement motors (GMseries) for greater performance and reliability.The nine cylinders design guarantees a smooth out-put torque, the variable shaft eccentric is based on asimple reliable mechanism.