china coal 0001 ZM-70 Hydraulic Piling Rig Machine Introduction of ZM-77 Hydraulic Piling Rig Machine ZM-77 Hydraulic Piling Rig Machine is large rotation torque.the structure of the drilling rig is compact, During drilling the slide-skid are support on the ground to ensure the drilling has good stability. With the crawler chasis and the advanced hydraulic hammer or drilling head,the pile driver have great adaptability to all kinds of terrians and complicated conditions. This rotary drilling rig has low gravity center, steady operation, more safe. ZM-77 Hydraulic Piling Rig Machine is widely used in open cut ore mining,power station,applied for municipal construction, roads and bridges construction, high-rise buildings and other foundation construction project. Parameter of ZM-70 Hydraulic Piling Rig Machine ProductZM-70 Hydraulic Piling Rig Machine Motor power(hp)70-120 Maximum driling(m) depth3~15 Drill pipe diameter(mm)70-1200 Rig framecrawler Walking speed(km/h)6-15 Hydraulic system working pressure(Mpa)16-22 Rotation angle180/360 Weight(t)7~10 Dimension(mm)4500*2000*2800