“Kaishan” KT7 integrated surface DTH drilling rig is advanced drilling equipment integrating down-the-hole drilling system and screw air compressor system. It is of compact structure, well integrated and easy to move and its two systems are powered by a diesel engine with six cylinders.
Its high air pressure screw compressor head with core intellectual product and single stage compression adopts internationally advanced Tangshi Y-line to produce high flow (13m³/min) and high air pressure (1.7MPa), thus it provides strong power for high pressure pneumatic hammer and its drilling speed is 20%-50% higher than that of medium wind pressure drilling rig.



Technical Parameters of KT7 Integrated Surface DTH Drilling Rig
Rock rigidity  | 
                f=6-20  | 
                Rotary torque (N*m)  | 
                1900  | 
              
Drilling diameter(mm)  | 
                90-105  | 
                Max. feed force (N)  | 
                25000  | 
              
Economic drilling depth  | 
                30  | 
                Guide lifting angle  | 
                Up28° down42°  | 
              
Travel speed (Km/h)  | 
                0-2.5  | 
                Guide tilt  | 
                129°  | 
              
Climbing capacity  | 
                30°  | 
                Guide swing  | 
                Right38° left35°  | 
              
Ground clearance(mm)  | 
                380  | 
                Lateral horizontal guide swing  | 
                Right4° ~89°  | 
              
Total Power (kW)  | 
                180  | 
                Boom swing  | 
                Right39° left60°  | 
              
Diesel  | 
                YuchaiYC6A  | 
                Frame balance angle  | 
                Up10° down9°  | 
              
Capacity of screw compressor (m³/min)  | 
                13  | 
                Feed length at a time(mm)  | 
                3000  | 
              
Discharge pressure of screw compressor (Mpa)  | 
                1.7  | 
                Compensation length(mm)  | 
                900  | 
              
Dimensions (long×width×high)(mm)  | 
                8000×2300×2800  | 
                Hammer  | 
                HD35A(HD45S)  | 
              
Weight(Kg)  | 
                9500  | 
                Drill rod  | 
                Φ64×3000mm  | 
              
Rotary speed (r/min)  | 
                0-120  | 
                Dust catching method  | 
                Hydraulic cyclones layer streaming  |