... , high efficiency, 2.Strong overload capacity .WHL series crawler type long rotary drilling rig specificationsPile machine is ideal equipment which is widely ... high-rise buildings, highways, high-speedrailway foundation treatment . Rotary drilling rig get rid of the cable tie and mobiles flexiblly, wide ... power(kW)55×255×2Total weight(t)6890 WHL series crawler type long rotary drilling rig