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Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bits

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.

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:

ModelDiameterNo.*button  dia. (mm)No.Weight
mminchgauge buttonsfront buttonsflushing holekg

Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit
 

BR1

642 1/26*Φ103*Φ1022.6
702 3/46*Φ124*Φ922.8
7636*Φ125*Φ1023.2

Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit
 

BR2

7636*Φ125*Φ1023.6
80-6*Φ135*Φ1024
903 1/26*Φ136*Φ1024.5

Bulroc Medium Air Pressure Down The Hole Drilling DTH Button Bit
 

BR3

85-6*Φ134*Φ1223.8
903  9/166*Φ144*Φ1224
953 3/46*Φ145*Φ1224.3
1003 15/168*Φ136*Φ1324.8
1054 1/88*Φ136*Φ1325.2


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