Kaishan KGH5AIII Compact Crawler Air DTH Drill Rig for Open-Pit Mining

• Dedicated Single-Person Centralized Operation: Features an ergonomically arranged central operating console with clear function zones. Drill pipe mechanical handling, feed positioning, and tramming can all be performed by a single operator without extra assistance.
• Robust & Eco-Friendly Yuchai Power: Equipped with a Yuchai YC4DK100-T304 heavy-duty four-cylinder diesel engine (73.5 kW / 2200 rpm) compliant with National-III emission regulations, delivering high fuel economy and stable power in dusty environments.
• Upgraded Plunger Travel Motor & Steel Crawler: Utilizes a high-pressure plunger travel motor and reinforced steel tracks with 380 mm ground clearance and up to 30° gradeability, ensuring strong tractive grip across steep slopes and uneven gravel.
• Full Hydraulic Drilling with Anti-Jamming Protection: Features an advanced hydraulic circuit that increases system flow and rotary speed (up to 200 rpm). The automatic anti-jamming system releases pressure and reverses feed upon encountering stuck drills, preventing rod breakage.
• Optimized Boom Geometry for Angle Drilling: Rigid drill arm with dual lifting-arm hydraulic cylinders supports versatile vertical, inclined, and horizontal blasting holes (beam tilt 117°, boom swing 44°, pitch angle 95°).
• High-Efficiency Multi-Cartridge Dust Collector: Equipped with a standard QZA-90 dust collector (8 filter elements, upgradable to QZA-120 with 12 filter elements) to maintain a clean working site and comply with international green mine standards.
• Modular Design for Fast Job-Site Maintenance: Clear partition layout separates air, hydraulic, and electrical components. Standardized wear parts allow rapid inspection and on-site servicing for overseas projects.

Target Applications

Engineered for rock hardness conditions of f = 6 – 20 across demanding open-air construction and mining projects:

• Open-pit bench mining (limestone, basalt, granite, marble, and metal ores)
• Quarry stone production and blast hole pre-splitting
• Excavation blasting for highway, railway, and hydropower dam foundations
• Slope reinforcement, rock anchoring, and retaining wall engineering

Technical Specifications