“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 |