Strong bearing system of the main shaft which was taken from the design of our Hydraulic Drifters 2 speed hydraulic circuit shifts by standard hand operated hydraulic directional valve.
Compatible to drill rigs of lower class of weight.
YDR20A HYDRAULIC ROTARY HEAD
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Outline：Strong bearing system of the main shaft which was taken from the design of our Hydraulic Drifters 2 speed hydraulic circuit shifts by standard hand operated hydraulic directional valve
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