Product Introduction

The ship-borne orbital PY22 type down-the-hole hammer drilling rig is specially designed and produced according to the submarine rock condition of Victoria port in Hong Kong. The drilling rig adopts dual-drive reducer to drive the down-the-hole hammer to break the submarine rock through the air hole in the center of the power head. The whole machine is composed of upper plate, walking beam, movable wellhead plate and ship surface track, which is driven by hydraulic brake to complete walking.

Main technical parameters

Project	Parameters
Maximum drilling depth m	22
Drilling diameter mm	∅600
Maximum lifting force kN	400
Allowable inclination angle of upright post	2°
Power head power kW	2*55
Drill pipe speed r/min	16
Maximum output torque of power head kN · m	65.6kN
Travel speed m/min	10
Maximum working pressure of hydraulic system MPa	14
Maximum allowable ground angle in working state	2°

Some engineering examples

The ship-borne orbital PY22 type down-the-hole hammer drilling rig is specially designed and produced according to the submarine rock condition of Victoria port in Hong Kong. The drilling rig adopts dual-drive reducer to drive the down-the-hole hammer to break the submarine rock through the air hole in the center of the power head. The whole machine is composed of upper plate, walking beam, movable wellhead plate and ship surface track, which is driven by hydraulic brake to complete walking.