Engineered for Tough Drilling Conditions
From rocky mountains to complex construction sites, our drilling systems are designed to deliver
stable performance, easy operation and efficient rock penetration.
Portable Desig
Lightweight structure enables quick transportation and flexible deployment.
Powerful Performance
High torque rotation and pneumatic impact provide efficient rock breaking.
Flexible Power Options
Available in electric-pneumatic and fully pneumatic configurations.
Easy Maintenance
Simple structure reduces downtime and maintenance costs.
Product Model
YG412
Drilling diameter range
50-203 mm
Drilling depth
30 m
Max. torque
2960 N·m
Propulsive force
15 kN
Lifting force
25 kN
One-time advance length
3000 mm
Walking speed
2.5 km/h
Engine power
58 kW
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YG420B
Drilling diameter range
50-150 mm
Drilling depth
40 m
Max. torque
2960 N·m
Propulsive force
15 kN
Lifting force
25 kN
One-time advance length
3400 mm
Walking speed
2.5 km/h
Engine power
58 kW
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KS669
Drilling diameter range
90-165 mm
Drilling depth
40 m
Max. torque
3680 N·m
Propulsive force
12 kN
Lifting force
24 kN
One-time advance length
3000 mm
Walking speed
3.75 km/h
Engine power
60/70 kW
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We offer comprehensive support for DTH drilling rigs, from equipment selection andinstallation
guidance to operation training and after-sales service. Our technical teamprovides remote
assistance, troubleshooting guidance, and spare parts support to help
customers keep their drilling equipment running efficiently.
Equipment Installation Guidance
Operator Training
Rig Commissioning Support
Drill Tools & Rod Support
Drilling Parameter Guidance
Troubleshooting Guidance
Remote Technical Assistance
Spare Parts Supply
Professional Services and Solutions for DTH Drilling Applications
We provide comprehensive service and robust support for diverse rock drilling,
blasting, and deep-hole excavation requirements across the mining and construction industries.
Surface Mining & Quarrying
Infrastructure & Foundation Construction
Water Well & Geothermal Drilling
Tunnelling & Underground Excavation
Advanced DTH Hammer & Rotation Technology
High-Frequency Pneumatic Impact
The piston strikes the drill bit directly to minimize energy loss, delivering concentrated
impact force to fracture hard rock ($≥20$ hardness) with maximum penetration rates.
Heavy-Duty Rotary Torque
High-torque rotation ensures smooth drill string operation under heavy loads, maintaining
straight hole alignment and stability in fractured strata.
Efficient Air Flushing
Compressed air instantly clears rock cuttings from the hole bottom, preventing secondary
crushing and extending bit life.
Flexible Power Options
Versatile electric-pneumatic and fully pneumatic configurations adapt easily to on-site
energy conditions to lower operating costs.
Compatible DTH Hammers & Drill Bits
Engineered for Maximum Drilling Performance
High-performance tungsten carbide bits and heavy-duty hammers tailored for your
rig models to ensure maximum lifespan.
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Explore Our Recent Projects
See examples of how our DTH drilling rigs deliver reliable performance and efficient excavation in
real-world job sites.
Hard Rock Blasting Hole Drilling
Tunneling & Underground Pre-splitting
Surface Mining & Quarrying Operations
Highway Slope Stabilization & Anchoring
BREAK THROUGH THE TOUGHEST ROCK
Powerful DTH drilling rigs built for hard rock, mining, and quarry applications. Get the right
solution to boost your drilling efficiency.
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