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DTH hammer DTH bit DTH drill rig down-the-hole hammer
DTH hammer DTH bit DTH drill rig down-the-hole hammer
DTH hammer DTH bit DTH drill rig down-the-hole hammer

DTH hammer DTH bit DTH drill rig down-the-hole hammer

DTH hammer DTH bit DTH drill rig down-the-hole hammer

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Product Detail

DTH Hammer, DTH Bit and DTH Drill Rig – Product Details

DTH (Down-the-Hole) drilling tools represent a complete rock drilling system consisting of three core components: the DTH hammer (pneumatic impact tool), the DTH bit (rock-cutting tool), and the DTH drill rig (carrier and rotation/feed system). This integrated system delivers high-frequency impact energy directly to the drill bit at the bottom of the hole, enabling efficient penetration in hard rock formations where top-hammer drilling becomes less effective.

DTH hammers operate on compressed air, with the piston striking the bit directly without energy loss through the drill string. The drill rig provides rotation, feed force, and air supply, while the bit transfers impact energy into the rock.

Popular Hammer Models by Size

SizeHammer ModelsRecommended Hole Range
3.5'COP32, DHD3.5, M30, BR3390 – 115 mm (3 1/2' – 4')
4'COP44, DHD340, QL40, SD4, Mission40105 – 152 mm (4 1/8' – 6')
5'COP54, DHD350R, QL50, SD5, Mission50133 – 165 mm (5 1/4' – 6 1/2')
6'COP64, DHD360, QL60, SD6, Mission60152 – 254 mm (6' – 10')
8'COP84, DHD380, QL80, SD8203 – 330 mm (8' – 13')
10'SD10, NUMA100, TH10254 – 380 mm (10' – 15')
12'DHD1120, SD12, NUMA120305 – 508 mm (12' – 20') 

DTH Bit Specifications

ParameterSpecification
Bit TypeButton Bit (Concave / Flat / Convex / Drop Center)
Button MaterialTungsten Carbide
Body MaterialAlloy Steel, Heat Treated
Shank CompatibilityDHD, COP, QL, SD, Mission, BR
Diameter Range90mm – 1200mm 

Common Bit Shank & Diameter Combinations

Shank SeriesAvailable Diameters (mm)
DHD340 / COP44 / QL40 / SD4105, 108, 115, 121, 127
DHD360 / COP64 / QL60 / SD6152, 155, 159, 165, 178, 190, 203
DHD380 / COP84 / QL80 / SD8203, 216, 229, 241, 254, 305

DTH Drill Rig Specifications

ParameterTypical Range
Drilling Diameter50mm – 400mm
Drilling Depth15m – 1000m (application dependent)
Working Air Pressure1.7 – 3.0 MPa
Air Consumption17 – 36 m³/min
Rotation Speed45 – 150 rpm
Rotation Torque3,500 – 5,500 N·m
Feed Force17 – 45 kN

Rig Types

TypeApplicationTypical Hole Range
Crawler DTH RigMining, quarrying, water well90 – 254 mm
Truck-Mounted RigWater well, geothermal140 – 400 mm
Portable/Mini RigSlope support, small blastholes50 – 130 mm
Surface Blasthole RigOpen-pit mining, quarrying127 – 203 mm 
  • High Penetration Rate: Direct impact energy delivery at hole bottom maximizes drilling efficiency in hard rock
  • Long Service Life: Heat-treated alloy steel bodies and premium tungsten carbide buttons resist wear
  • Wide Compatibility: Available in all major shank types for global rig compatibility
  • Complete System: Hammers, bits, and rigs available for one-stop procurement
  • Optimized Air Consumption: Balanced design for efficient flushing and cuttings removal
  • Water Well Drilling: Deep wells for municipal, agricultural, and industrial supply
  • Mining & Quarrying: Blast-hole drilling for open-pit and underground operations
  • Geothermal Drilling: Thermal well and energy well construction
  • Foundation Construction: Piling, anchoring, and ground improvement
  • Exploration Drilling: Mineral exploration and geotechnical investigation



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Product Detail

DTH Hammer, DTH Bit and DTH Drill Rig – Product Details

DTH (Down-the-Hole) drilling tools represent a complete rock drilling system consisting of three core components: the DTH hammer (pneumatic impact tool), the DTH bit (rock-cutting tool), and the DTH drill rig (carrier and rotation/feed system). This integrated system delivers high-frequency impact energy directly to the drill bit at the bottom of the hole, enabling efficient penetration in hard rock formations where top-hammer drilling becomes less effective.

DTH hammers operate on compressed air, with the piston striking the bit directly without energy loss through the drill string. The drill rig provides rotation, feed force, and air supply, while the bit transfers impact energy into the rock.

Popular Hammer Models by Size

SizeHammer ModelsRecommended Hole Range
3.5'COP32, DHD3.5, M30, BR3390 – 115 mm (3 1/2' – 4')
4'COP44, DHD340, QL40, SD4, Mission40105 – 152 mm (4 1/8' – 6')
5'COP54, DHD350R, QL50, SD5, Mission50133 – 165 mm (5 1/4' – 6 1/2')
6'COP64, DHD360, QL60, SD6, Mission60152 – 254 mm (6' – 10')
8'COP84, DHD380, QL80, SD8203 – 330 mm (8' – 13')
10'SD10, NUMA100, TH10254 – 380 mm (10' – 15')
12'DHD1120, SD12, NUMA120305 – 508 mm (12' – 20') 

DTH Bit Specifications

ParameterSpecification
Bit TypeButton Bit (Concave / Flat / Convex / Drop Center)
Button MaterialTungsten Carbide
Body MaterialAlloy Steel, Heat Treated
Shank CompatibilityDHD, COP, QL, SD, Mission, BR
Diameter Range90mm – 1200mm 

Common Bit Shank & Diameter Combinations

Shank SeriesAvailable Diameters (mm)
DHD340 / COP44 / QL40 / SD4105, 108, 115, 121, 127
DHD360 / COP64 / QL60 / SD6152, 155, 159, 165, 178, 190, 203
DHD380 / COP84 / QL80 / SD8203, 216, 229, 241, 254, 305

DTH Drill Rig Specifications

ParameterTypical Range
Drilling Diameter50mm – 400mm
Drilling Depth15m – 1000m (application dependent)
Working Air Pressure1.7 – 3.0 MPa
Air Consumption17 – 36 m³/min
Rotation Speed45 – 150 rpm
Rotation Torque3,500 – 5,500 N·m
Feed Force17 – 45 kN

Rig Types

TypeApplicationTypical Hole Range
Crawler DTH RigMining, quarrying, water well90 – 254 mm
Truck-Mounted RigWater well, geothermal140 – 400 mm
Portable/Mini RigSlope support, small blastholes50 – 130 mm
Surface Blasthole RigOpen-pit mining, quarrying127 – 203 mm 
  • High Penetration Rate: Direct impact energy delivery at hole bottom maximizes drilling efficiency in hard rock
  • Long Service Life: Heat-treated alloy steel bodies and premium tungsten carbide buttons resist wear
  • Wide Compatibility: Available in all major shank types for global rig compatibility
  • Complete System: Hammers, bits, and rigs available for one-stop procurement
  • Optimized Air Consumption: Balanced design for efficient flushing and cuttings removal
  • Water Well Drilling: Deep wells for municipal, agricultural, and industrial supply
  • Mining & Quarrying: Blast-hole drilling for open-pit and underground operations
  • Geothermal Drilling: Thermal well and energy well construction
  • Foundation Construction: Piling, anchoring, and ground improvement
  • Exploration Drilling: Mineral exploration and geotechnical investigation



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Contact us

WhatsApp:+86-172 696 29279

WeChat:172 6962 9279

E-mail:asher@wuchenjialianspareparts.com

Tel:+86-172 696 29279

Address:No. 667, Zhujiang Road, Xuejiadao 

Street, Huangdao District, Qingdao, Qingdao Area, China (Shandong) Pilot Free Trade Zone

Products

Excavator Parts
Wheel Loader Accessories
Bulldozer Parts
Crane Accessories
Truck Parts
Engine Parts
Transmission Parts
Road Roller Accessories
Grader Accessories
Tire

Service

Pre-Sale Consultation

Logistics Services

After-Sale Services

Downloads

Company

About Us

Contact Us

 

Industry

Mine Applications
Construction
Port Logistics
Agricultural Applications

© Copyright - 2026 Qingdao Wuchen Jialian International Trade Co., Ltd . All Rights Reserved.

© Copyright - 2026 Qingdao Wuchen Jialian International Trade Co., Ltd . All Rights Reserved.

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