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
Integrates the down-the-hole drilling system and an onboard two-stage screw compressor (15 m³/min @ 18 bar) onto a single crawler chassis. Powered by a 176 kW Yuchai YCA07240 engine, it eliminates trailing air hoses, simplifies site logistics, and cuts fuel consumption by up to 30%.
Features an advanced aerospace-grade aluminum alloy propulsion beam (3,590 mm feed stroke) for high bending rigidity and reduced front weight. The integrated 7+1 automatic rod carousel with automatic thread lubrication enables single-operator drilling to depths of up to 24 meters.
Equipped with an onboard, hydraulically driven cyclonic laminar-flow dust collector that captures airborne silica dust at the hole collar. Heavy-duty crawler tracks, 430 mm ground clearance, and ±10° frame leveling ensure safe maneuvering on 25° quarry slopes.
| Parameter | KT7D Specification |
|---|---|
| Drilling hardness | f=6-20 |
| Drilling diameter | 90-135 mm |
| Depth of economical drilling | 24 m |
| Travelling speed | 0-3 km/h |
| Climbing capacity | ≤25° |
| Ground clearance | 430 mm |
| Power of complete machine | 176 kW / 2200r/min |
| Diesel engine | Yuchai YCA07240-T300 |
| Screw compressor | Two stage compression 15 m³/min / 18 bar |
| Outer dimensions (L×W×H) | 8000×2300×2700 mm |
| Weight | 10000 kg |
| Rotation speed of gyrator | 0-180 r/min |
| Rotary torque (Max) | 1560 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° |
| Leveling 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 KT7D features an advanced high-strength aluminum alloy propulsion beam, an integrated 7+1 automatic rod handling carousel, and an automatic thread lubrication system, whereas the KT7C uses a conventional steel feed beam with manual rod loading.
A: No. The KT7D is fully self-contained. Its 176 kW Yuchai diesel engine powers the hydraulic drilling systems while directly driving the onboard 18-bar two-stage screw compressor (15 m³/min), operating with zero trailing hoses.
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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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