3 steps percussion frequency selection. Capable of 178mm casing advancing drilling.
3 speed hydraulic circuit operated by hydraulic directional valve. Rotation torque can get to 33360 Nm.

3 steps percussion frequency selection. Capable of 178mm casing advancing drilling.
3 speed hydraulic circuit operated by hydraulic directional valve. Rotation torque can get to 33360 Nm.


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YDH804 ANCHORAGE & WATER WELL