PD Series non-excavation orientation drilling rig is hydraulic non-excavation construction equipment developed by our company. It is widely used in paving various kinds of underground pipes without excavating groove under the stratum. PD series non-excavation orientation drilling rig adopts structure integrating Caterpillar chassis and power station with the drilling rig, it convenient in moving and strong and flexible in its grade ability. The major return circuit of hydraulic system adopts close alterable system, auxiliary return circuit adopts load induction open system, it low in giving off heat and high in efficiency. The hydraulic pumps and valves adopt components of fine quality from home and abroad, which make it reliable in performance. Specifications Item/Model PD15 PD20 PD30 PD40 PD50 Feeding force /Pulling force(kN) 150/150 100/200 300/300 400/400 5 Maximum torque (kNm) 4.5 5.8 13 16 25 Rotary speed (r/min) 0---120 0---100 0---120 0---120 0---120 Spec.for drilling rod (mm ) Φ60 Φ60/Φ73 Φ89 Φ89 Φ114 Diameter of guiding hole (mm) Φ80 Φ80 Φ130 Φ150 Φ180 Angle scope ( 0 ) 10--20 10--20 10--18 10--18 10--18 Power (kw ) 75 112 138 168 192