Drilling ParameterHole diameter :                          90--1200(mm)Hole depth :                                   250(m)Run Of Rod :                                   3,4(m)Drill rod diameter :φ60 φ73 φ89 φ95 φ133(mm)Drilling Technology :       Normaland Reverse Circulation for both Mud and AirDown-The-Hole hammers:      Middle-High-Pressure AirPerformance ParameterDrill Head Inside Diameter :        Φ35 φ60   φ80   φ120Drill Head lifting speed(m/s) :           0.37             0.16Drill Head lifting Force(kN) :           45.4           105Drill Head Spin Speed:        A(Forward:14-23-52-84,Reverse:8-13-29-47r/min)B(Forward:32-52-116-188,Reverse:18-29-65-106r/min)Shape ParametersDimensions :          (L-W-H) Working conditions 5300×2000×7200(mm)Transport status:        (L-W-H)7900×2000×3000(mm)Supporting Form :                        Mechanical ScrewMast Up-Down :                           Hydraulic UnitRig mass :                                      3800(Kg)Chassis :                             Trailer with four wheelsPower Unit :                                Diesel EnginePower :                                      49(kW)Pump :                 LBN-20 Normal and Reverse Circulation Pump GroupFlow(m³/h) :                                           80Main Hoist Lifting Force :          20.6(kN)Feed Thrust :                   0-15(kN)Notes: Drill head spin speed can be selected, A is normal