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Bulroc Br1 Middle-Low Air Pressure Down The Hole DTH Borehole Drilling Rock Button Bit 57~76mm

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Bulroc Br1 Middle-Low Air Pressure Down The Hole DTH Borehole Drilling Rock Button Bit 57~76mm

Mining Rock Drilling Bit Br1 Br2 Br3 Down The Hole Hammer and Button Bits
Bulroc Shank Br1 0.75~1.75 MPa Middle Air Pressure Down The Hole Drilling Button Bit

br1 DTH hammer 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.

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Model:
Br1 Br2 Br3 Down The Hole Hammer and Button Bits
Brand:
Bestlink

Product Description

Bulroc Br1 Middle-Low Air Pressure Down The Hole DTH Borehole Drilling Rock Button Bit 57~76mm

br1 DTH hammer 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
Model	mm	inch	gauge buttons	front buttons	flushing hole	kg
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
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
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