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{"title":"Premium Reverse Circulation Drill Pipe \/ Rc Drill Rod Carbon Steel High","imgUrl":"https:\/\/img.chinax.com\/nimg\/21\/ca\/698af4a16992d5cd515325c95b65-200x200-1\/premium_reverse_circulation_drill_pipe_2f_rc_drill_rod_carbon_steel_high_performance.jpg","attrs":{"Brand Name":"MIROC Rock Drilling Tools","Model Number":"RC Drill Pipe","Certification":"API","Place of Origin":"China"}}
{"title":"Thread Rock Drilling Tools Bit Sub Adapter With API Reg And BECO Pin","imgUrl":"https:\/\/img.chinax.com\/nimg\/e9\/ce\/65f574c4a28b6943630e29292c92-200x200-1\/thread_rock_drilling_tools_bit_sub_adapter_with_api_reg_and_beco_pin.jpg","attrs":{"Brand Name":"MIROC Rock Drilling Tools","Model Number":"DTH Adapter \/ DTH Sub","Certification":"API","Place of Origin":"China"}}
{"title":"DTH Drilling Tools DTHP76-1500 API Reg Thread 76-89mm DTH Drill Pipe","imgUrl":"https:\/\/img.chinax.com\/nimg\/39\/d9\/a482bd9572aeec4df70fbff7d404-200x200-1\/dth_drilling_tools_dthp76_1500_api_reg_thread_76_89mm_dth_drill_pipe.jpg","attrs":{"Place of Origin":"China","Brand Name":"MIROC","Model Number":"Thread 76-89mm","Minimum Order Quantity":"50"}}
{"title":"Tungsten carbide \/ high strength alloy steel DTH Drilling Tools DTH Sub Female","imgUrl":"https:\/\/img.chinax.com\/nimg\/12\/6d\/82ad2a71541da3d0d2192ba2539b-200x200-1\/tungsten_carbide_2f_high_strength_alloy_steel_dth_drilling_tools_dth_sub_female_male.jpg","attrs":{"Place of Origin":"China","Brand Name":"MIROC","Model Number":"4148301570-4148301588","Minimum Order Quantity":"50"}}
{"title":"High strength steel High strength steel DTH Sub Female-Female","imgUrl":"https:\/\/img.chinax.com\/nimg\/6b\/91\/dfaeb7f6d8d7a0fddd91444eecbf-200x200-1\/high_strength_steel_high_strength_steel_dth_sub_female_female.jpg","attrs":{"Place of Origin":"China","Brand Name":"MIROC","Model Number":"4148301589-4148301592","Minimum Order Quantity":"50"}}
{"title":"High Fatigue Strength DTH Drilling Tools DTH Sub Male-Male , Downhole Drilling","imgUrl":"https:\/\/img.chinax.com\/nimg\/1d\/0d\/07d16116d20ea4078902c24a794e-200x200-1\/high_fatigue_strength_dth_drilling_tools_dth_sub_male_male_2c_downhole_drilling_tools.jpg","attrs":{"Place of Origin":"China","Brand Name":"MIROC","Model Number":"4148301593-4148301595","Minimum Order Quantity":"50"}}
High-performance down-the-hole (DTH) drilling tool engineered for mining, water well drilling, and large-scale foundation applications in medium to extremely hard rock formations.
Product Overview
The DHD380 Hammer Bit is designed for compatibility with DHD380 or similar large-diameter DTH hammers, delivering superior durability, penetration rate, and operational economy in demanding drilling operations.
Key Features & Benefits
Extended Bit Life: Forged from premium alloy steel with high-density, wear-resistant tungsten carbide buttons for maximum service life in abrasive formations
Superior Penetration Rate: Optimized button layout and advanced head profile ensure efficient energy transfer for faster drilling
Efficient Debris Removal: Strategically sized flushing holes allow optimal air flow for effective cuttings removal
Heavy-Duty Connection: Robust standardized thread connection (DHD 380 R32 or similar) withstands high torque and impact stress
Technical Specifications
Head Shape
Head Diameter (mm)
Shank Length (mm)
Spline
Port Holes
Button Type
Button Qty. × Dia. (mm)
Weight (Kg)
Concave Face
203
350
10
2
Domed
Gauge: 10×Ø18 Front: 4×Ø18 + 10×Ø16
48.5
Concave Face
216
350
10
2
Domed
Gauge: 10×Ø18 Front: 4×Ø18 + 10×Ø16
52.1
Concave Face
230
350
10
2
Domed
Gauge: 12×Ø18 Front: 12×Ø18 + 6×Ø16
54.8
Concave Face
235
350
10
2
Domed
Gauge: 12×Ø18 Front: 12×Ø18 + 6×Ø16
55.5
Concave Face
254
350
10
2
Domed
Gauge: 12×Ø18 Front: 12×Ø18 + 8×Ø16
62.4
Convex-Concave Face
275
350
10
3
Domed
Gauge: 15×Ø18 Front: 35×Ø16
77.6
Convex-Concave Face
305
350
10
3
Domed
Gauge: 15×Ø18 Front: 35×Ø16
77.6
Selection Guide: Head Profile & Button Type
Head Profiles
Flat Face Bit: Balanced cutting action for medium to hard, stratified formations
Convex Face Bit: Concentrates impact energy for very hard and brittle rock
Concave Face Bit: Shearing action for softer to medium-hard, ductile formations
Button Types
Spherical (Domed) Buttons: Maximum wear resistance for hardest and most abrasive rock
Ballistic (Chisel) Buttons: Sharper cutting edge for higher penetration in medium-hard to hard rock
Why Choose the DHD380 Hammer Bit?
Proven Reliability: Built to exacting DHD hammer compatibility standards
Cost-Effective Drilling: Maximizes meters drilled per bit, reducing downtime and tooling costs
Versatility: Available in various diameters and designs for specific geological conditions
Global Support: Backed by extensive technical support and worldwide supply network
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2009
Total Annual:
3000000-5000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capit...
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capit...
