Integrated Surface DTH Drilling Rig, KT7C

Down-the-hole drill rig for open-pit mining

Integrated Surface DTH Drilling Rig, KT7C
Integrated Surface DTH Drilling Rig, KT7C Integrated Surface DTH Drilling Rig, KT7C Integrated Surface DTH Drilling Rig, KT7C Integrated Surface DTH Drilling Rig, KT7C

This machine integrates a hydraulic long hole drilling rig and a screw air compressor. The compressor consists of a single-stage high-pressure air end that delivers 13,000 L of air per minute at up to 246.5psi, which can provide energy to KT7C’s high-pressure down-the-hole hammer. Thanks to this, the rig drills rocks 20%-50% faster than those equipped with medium-pressure air compressor. The machine is powered by a Yuchai off-road engine that meets China Stage III emission standards. With so many distinctive features, the rig is easy to use and to be transported from site to site.

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Technical Specifications
Model KT7C
Rock hardness F=6-20
Hole diameter ⌀80-105mm
Hole depth 25m
Tramming speed 2.5/4.0km/h
Gradeability 30°
Ground clearance 430mm
Total power 195kW
Diesel engine Yuchai YC6A260-T30
Free air delivery of compressor 13m³/min
Discharge pressure of compressor 238 psi
Dimensions 8000 ×2300 ×3000mm
Total weight 9600kg
Rotation speed 0-120r/min
Maxium torque 2.45kN.m
Maximum push force 25kN
Boom lift angle Up: 28°, Down: 42°
Tilt angle 129°
Swing angle Left: 38°, Right: 35°
Lateral horizontal swing angle Right: 42-89°
Boom swing angle  Right: 39°, Left: 60°
Frame oscillation angle Up: 10°, Down: 9°
Feed length 3000mm
Feed extension 900mm
DTH hammer K30
Rod diameter ⌀64×3000mm
Dust collector Dry (hydraulic cyclonic laminar flow)
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