High Quality middle pressure BR1 BR2 BR3 DTH Drill Rig DTH button bit

The BR1 and BR2 are both valved type hammers designed for high performance at low operating air pressures. Simplicity of design, ease of service and low air consumption are all factors which combine to make these hammers robust and reliable drilling tools.

Both hammers are available as standard with box back heads, RD40 for the BR1 and RD50 for the BR2. However alternative back head options are available on request.

The BR1 and BR2 hammers both incorporate a positive fitting check valve to guard against the ingress of ground water debris when the air is shut off.

1.Valveless air distribution. More reliable

2.Simple design of the piston. Long life.

3.More efficient energy transfer, fact drilling speed, lower air consumption and lower oil consumption.

4. Fewer internal parts, simple structure, long life, less failure and easier to maintain because all the parts are heat treated.

5.Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.

Drilling and drilling blasting holes, landslide protection, dam site reinforcement and anchoring holes, ground heat source air conditioning, hydrology, water well holes and other fields in mines, quarries, road construction and other projects。