500m depth pneumatic rock drill machine /rock use down-hole drilling machine 

/deep hole water well drilling rig 

1.Diesel engine use Yuchai turbo supercharged engine.

2.Walking device:walking motor with reducer ,long service life.

3.Hydraulic oil pump : parallel type gear box ,Oil pump monomer separation ,enough power supply.

4.Power head unit:gear box cast in one piece,two motor offer power,have big torque

5. chassis:Professional excavator chassis,big weight bearing capacity ,wide chain plate have small injur to road surface.

6.lifting force :Composite arm have small volume ,long stroke.two oil cylinder lifting have big lifting force.