JCB JS 220 River Rig Prop Control Circuits 
JCB JS 220 River Rig Prop Control Circuits 

JCB JS 220 River Rig Prop Control Circuits 

Latest project from N D Mechanical Services Ltd. JCB JS 220 River Rig updated with additional circuits, circuits fitted, double acting prop control circuit for tree shears and pile hammer, using our latest proportional control circuit which gives thumb wheel control for open / close of tree shear circuit and by changing a simple switch a lower flow to work a vibrating pile hammer. 

Two pump priority flow valve
Two pump priority flow valve
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N D Mechanical Services Ltd are one of the UK’s leading auxiliary circuitry companies supplying multiple industries with additional pipework kits. N D Mechanical Services Ltd is owned and run by Nick Dunford who has nearly 30 years experience working in the hydraulics industry.
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