Gold Member Since 2014
Audited Supplier
Xiamen Bestlink Factory Co., Ltd.

DTH Bits, Bits, Down The Hole manufacturer / supplier in China, offering Br1 Medium Air Pressure DTH Drilling Tools for Construction, T38 T45 T51 Retrac Thread Button Bits, Ql40 SD4 Ql50 SD5 Ql60 SD6 Ql80 SD8 DTH Bits for Hammer and so on.

(/ )

Supplier Homepage Product DTH drilling tools DTH button bit Br1 Medium Air Pressure DTH Drilling Tools for Construction

Br1 Medium Air Pressure DTH Drilling Tools for Construction

FOB Price: US $2,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $2,000/ Piece
Get Latest Price
Port: Xiamen, China
Production Capacity: 5000 PCS / Month
Payment Terms: L/C, T/T, Western Union, Money Gram

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Model NO.: BR Series
  • Certification: ISO9001
  • Type: Center Drill Bit
  • Usage: Well Drilling
  • Machine Type: Drilling Tools
  • Function: Rotation Impact Drilling
  • Hole Diameter: 64mm - 90mm
  • Transport Package: Wooden Case
  • Origin: Xiamen, China
  • Customized: Customized
  • Length: Stub-length
  • Material: Tungsten Carbide
  • Model Number: Br1, Br2
  • Application: Energy, Transportation, Metallurgy, Building etc.
  • Condition: New
  • Trademark: BESTLINK
  • Specification: ISO
  • HS Code: 82071990
Product Description
Br1 Medium Air Pressure DTH Drilling Tools for Construction

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.
BR16426×φ103×φ102.6HBR1-64
7026×φ124×φ92.8HBR1-70
7626×φ125×φ103.2HBR1-76
BR27626×φ125×φ103.6HBR2-76
8026×φ135×φ104HBR2-80
9026×φ136×φ104.2HBR2-90
HD257626×φ135×φ103.6HD25-76
8226×φ144×φ114HD25-82
9028×φ125×φ124.2HD25-90
 We can design and manufacture according to customer's requirement of the bit dia., no. of air holes, carbide button shape and face shape.
 
----Selection of DTH BIT FACE SHAPE AND CARBIDE BUTTON 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.
 
Hemispherical
? 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
 
 
 
 
 
Product Groups
Send your message to this supplier
Avatar
Mrs. Constance Lin
Manager
*From:
To: Mrs. Constance Lin
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now

Find Similar Products By Category