Fujian, China
Business Type:
Main Markets:
South America, Europe, Southeast Asia/ Mideast
Terms of Payment:
LC, T/T, Western Union
OEM/ODM Service
Sample Available
French / Russian / Spanish Speaker

Bits, DTH Bits, Button Bit manufacturer / supplier in China, offering Factory Price Middle Air Pressure DTH Drill Bits for Mining, DTH Hammer Top Sub Detach Dismantle Workbench, Water Bag for Block Stone and so on.

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Supplier Homepage Products DTH drilling tools DTH button bit Factory Price Middle Air Pressure DTH Drill Bits for Mining

Factory Price Middle Air Pressure DTH Drill Bits for Mining

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Min. Order / Reference FOB Price
1 Piece US $2,000/ Piece
Production Capacity: 5000 PCS / Month
Transport Package: Wooden Case
Payment Terms: L/C, T/T, Money Gram, Western Union
Type: Center Drill Bit
Material: Tungsten Carbide
Usage: Well Drilling, Rotation Impact Drilling
Model Number: Br1, Br2
Machine Type: Drilling Tools
Application: Energy, Transportation, Metallurgy, Building etc.

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Basic Info

Model NO.: BR3
Condition: New
Hole Diameter: 64mm - 90mm
Trademark: BESTLINK
Specification: ISO
Origin: Xiamen, China
HS Code: 82071990

Product Description

DTH bit is also our main product. After mang years search, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.
1.Various air pressure down-the-hole drill bits 
2.Low air pressure hole Dia.:65-220mm  
3.High air pressure hole Dia.:85-305mm  
4.Face type: drop center / concave / convex / double gauge / flat  
Technical Data:
Drill BitsBit Dia. (mm)NO. of Air holesGauge ButtonsFront ButtonsWeight (KGS)Part No.
 We can design and manufacture according to customer's requirement of the bit dia., no. of air holes, carbide button shape and face shape.
A: Bit face shape selection

DropCenter Bit
For high penetration rates in soft to medium-hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
Concave face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
Convex face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
Double Gauge face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
B: Insert Carbide Button Shape Selection
Matching the insert to the job requirements is essential in achieving the desired results.  Different buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels.  In general, the larger the number of gauge buttons the better overall performance, especially in hard rock.
Height 0.5 Ø
Application Strength - multipurpose
Best suited to hard ground
25,000 to 45,000 PSI (170 to 300 MPa)
Abrasive to very abrasive
Ballistic Button
Height 0.75 Ø
Application Strength - fast penetration
Best suited to soft ground
10,000 to 20,000 PSI (70 to 140 MPa)
Non abrasive ground
Parabolic Button (semi ballistic)
Height 0.6 Ø
Application Strength - fast penetration
Best suited to medium ground
15,000 to 25,000 PSI (100 to 170 MPa)
Mildly abrasive ground
Conical Button
Height 0.65 Ø
Application Strength - fast penetration
Suited for all non-abrasive ground types
Smaller contact area
Best suited for smaller diameter bits

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