BR1, BR2, BR3 is low pressure and mdedium pressure hammer using BR series bits.
It is valveless hammer, especially suitable for quarrying.
BR1 hammer technical data:
Length(without bits): 880mm
Weight(without bits): 14.5kg
External diameter: 62mm
Shank: Bulroc BR2
Hole range: 70mm-90mm
Connection thread: RD50 BOX
Working pressure: 7-17.5 bar
Impact rate ar 14 bar: 25Hz
Recmmended rotation speed: 25-40r/min
Air consumption:
At 7 bar: 2.5m3/min
At 10 bar: 4m3/min
At 14 bar: 5m3/min
We can prodive DTH bits for BR2 hammer diameter: 70mm, 76mm, 80mm, 85mm, 90mm customers' design is avaible.
We export DTH hammer and bits for almost thirty years.
DTH Hammer
Designed to suit high pressure drilling rigs.
» Water well drilling
» Record breaking penetration.
» Bench drilling
» Exploring Civil Engineering Applications
» Lowest cost per foot drilled.
» Mining /Mineral Exploration
» Simple & robust design. Exploring Civil Engineering Applications
» Oil well drilling
» Foot Valve not required in the bit.
» Longer parts life.
Specification:
2 inches DTH hammer button bits |
Shank style |
Diameter in mm |
Flushing holes No. |
Gauge buttons |
Face buttons |
Approx weight |
BR2 |
76 |
3 |
6*13mm |
3*13mm |
3.6kg |
80 |
3 |
6*14mm |
3*13mm |
4.0kg |
90 |
3 |
6*14mm |
5*12mm |
4.2kg |
3 inches DTH hammer button bits |
Shank style |
Diameter in mm |
Flushing holes No. |
Gauge buttons |
Face buttons |
Approx. weight |
BR3 |
85 |
2 |
6*13mm |
4*12mm |
3.8kg |
90 |
2 |
7*13mm |
5*12mm |
4.0kg |
95 |
2 |
7*13mm |
6*12mm |
4.3kg |
100 |
2 |
7*13mm |
6*12mm |
4.8kg |
105 |
2 |
8*12mm |
7*12mm |
5.2kg |