Official Export Subsidiary of Kaishan Group (Est. 1956) | Quzhou Manufacturing Base
Our Quzhou engineering desk calculates the exact borehole diameter, rock hardness, and necessary CFM/Bar ratio for your project.
Category Showcase
Kaishan DTH Drilling Rigs
Heavy-duty surface crawlers and integrated rigs for open-pit mining, quarry blasting, and slope stabilization. High penetration rate and anti-jamming hydraulic system.
EQUIPMENT CATEGORIES
Combines heavy DTH percussion rock-drilling mechanics and an onboard two-stage rotary screw compressor (17 m³/min @ 18 bar / 261 psi) on a single self-propelled crawler chassis. Powered by a high-output 191 kW (260 HP) Yuchai YC6A260 diesel engine, it eliminates the need to tow a trailer compressor, cuts jobsite fuel burn by up to 25%, and avoids trailing air-hose hazards.
Upgraded with a heavy-duty rotary head delivering 2,800 N·m maximum torque and 22,000 N (22 kN) push-pull thrust, expanding blast hole diameter to 105–146 mm. Features an aerospace-grade aluminium alloy propulsion beam (3,590 mm advance stroke) and an automated 7+1 carousel rod changer with thread oiling for single-operator deep drilling down to 24 meters.
Built on a 10,000 kg heavy-duty crawler undercarriage with 430 mm ground clearance and ±10° hydraulic frame levelling for steady gradeability up to 25° on rugged quarry benches. The heavy articulated boom provides a 147° beam tilt, wide carriage swing (R53°/L52°), and an onboard hydraulic cyclonic dry dust collection system for eco-compliant operations.
*Note: Due to continuous technical updates and improvements, any differences between parameters/configurations and actual products are subject to the delivered machine; additionally, machines shown in images may include optional equipment.
| Parameter | KD50E Specification |
|---|---|
| Drilling hardness | f=6-20 |
| Drilling diameter | 105-146 mm |
| Depth of economical drilling | 24 m |
| Travelling speed | 0-4 km/h |
| Climbing capacity | ≤25° |
| Ground clearance | 430 mm |
| Power of complete machine | 191 kW / 2100 rpm |
| Diesel engine | Yuchai YC6A260-T301 |
| Screw compressor | Two stage compression 17 m³/min / 18 bar |
| Outer dimensions (L×W×H) | 8500×2400×2800 mm |
| Weight | 10000 kg |
| Rotation speed of gyrator | 0-90 rpm |
| Rotary torque (Max) | 2800 N·m (Max) |
| Maximum push-pull force | 22000 N |
| Lifting angle of drill boom | Up 48°, down 16° |
| Tilt angle of beam | 147° |
| Swing angle of carriage | Right 53°, left 52° |
| Swing angle of drill boom | Right 50°, left 58° |
| Levelling angle of frame | Up 10°, down 10° |
| One-time advance length | 3590 mm |
| Compensation length | 900 mm |
| DTH hammer | 3", 4" |
| Drilling rod | Φ64/76×3000 mm |
| Number of rods | 7+1 |
| Method of dust collection | Dry type (hydraulic cyclonic laminar flow) |
| Method of extension rod | Automatic unloading rod |
| Method of drilling rod lubrication | Automatic oil injection and lubrication |
A: The KD50E upgrades diesel engine power to 191 kW (versus 176 kW on KD45ED), expands screw compressor air delivery to 17 m³/min @ 18 bar (versus 15 m³/min @ 18 bar), increases maximum rotary torque to 2,800 N·m (versus 1,560 N·m), and enlarges maximum drilling diameter to 146 mm (versus 135 mm) for superior productivity in harder rock formations.
A: No. The KD50E is a 100% self-contained, integrated crawler drill rig with an onboard 18-bar, two-stage screw air compressor (17 m³/min) powered directly by its 191 kW Yuchai diesel engine, operating autonomously with no trailing air hoses.
A: The extruded high-strength aluminium alloy beam reduces upper mast weight while offering exceptional anti-bending and anti-torsion rigidity, significantly improving hole straightness and minimising vibration on the feed mechanism and 7+1 automatic rod changer.
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Founded in 2022 in Quzhou City, Zhejiang Province. Operating as the global integrated export arm of Kaishan Group, delivering heavy-duty DTH drill rigs, water well exploration machinery, and screw air compressors worldwide.
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