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Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit

4inch High Air Pressure DTH Hammer Drill Button Bit
Bestlink company makes and supplies the finest and most efficient Down-the-Hole (DTH) hammers and bits for the mining, construction and water well industries.

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  • Bulroc Medium Air Pressure DTH Button Bit
  • Bestlink

BR1/BR2/BR3 Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit

BR1,BR2,BR3 series DTH Hammers are designed to operate efficiently at low air pressure and medium air pressure, using BR series DTH bits.

The main features are as follows:

1. The operating air pressure are between 0.7Mpa and 1.75Mpa.

2. Valveless hammers.

3. Simple structure, easy to assemble and to disassemble, long life.

4. Higher impact frequency and faster drilling speed.

5. Lower air consumption and lower oil consumption. A hole can be drilled on the check valve to provide more efficient cutting discharge.

6. Especially suitable for quarrying.


Bulroc series (BR1, BR2, BR3) DTH Drill Button Bit:

Model Diameter No.*button  dia. (mm) No. Weight
mm inch gauge buttons front buttons flushing hole kg

Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit
 

BR1

64 2 1/2 6*Φ10 3*Φ10 2 2.6
70 2 3/4 6*Φ12 4*Φ9 2 2.8
76 3 6*Φ12 5*Φ10 2 3.2

Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit
 

BR2

76 3 6*Φ12 5*Φ10 2 3.6
80 - 6*Φ13 5*Φ10 2 4
90 3 1/2 6*Φ13 6*Φ10 2 4.5

Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit
 

BR3

85 - 6*Φ13 4*Φ12 2 3.8
90 3  9/16 6*Φ14 4*Φ12 2 4
95 3 3/4 6*Φ14 5*Φ12 2 4.3
100 3 15/16 8*Φ13 6*Φ13 2 4.8
105 4 1/8 8*Φ13 6*Φ13 2 5.2

Bit-Face-Shape

drill bits

dth hammer bits application area

Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  

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