Rotary Blasthole Drilling Rig, KGH3AⅢ

Rotary Blasthole Drilling Rig, KGH3AⅢ
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Surface down-the-hole drill rig for open-pit mining

The rotary blasthole drilling rig is equipped with a 4-cylinder YUCHAI engine with low emission and less pollution. Featuring a piston motor and reinforced continuous track, this construction machine works better in ramp climbing. A special boom has been designed for vertical drilling. A user-friendly operating interface allows an operator capable of replacing drilling rods by himself. The rotary blasthole drilling rig is characterized by two rotational motors that can enhance feed and pull out force and reliable operation of the machine. Thanks to the reinforced materials, it will not be a tough task to move the rotary blasthole drill rig from site to site. Additionally, an improved cylinder in this drilling equipment ensures reliable operation.

Technical Specifications
Model KGH3AⅢ
Total weight 4200kg
dimensions 4450×2230×2100mm
Rock hardness F=6-20
Hole diameter Ø80-105mm
Hole depth 25m
RPM 0-110rpm
Maximum rotation torque 1650N.m(Max)
Pull out force 15kN
Feed type Oil cylinder leaf chain
Feed extension travel 2670mm
Tramming speed 0-2.5km/h
Gradeability ≤30°
Ground clearance 310mm
Tilt angle Down:105°, up:12°, total:127°
Swing angle Left:20°, right:24°, total:44°
Boom tilt angle Down:35°, up:60°, total:95°
Boom swing angle 900mm
Engine power YCD4R23T8-80(59kW/2400r/min)/Yuchai YCD4R23T8-80(59kW/2400r/min)
DTH hammer L30
Drilling rod Ø64×2m
Flushing air 9-13m³/min
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