CIR70 CIR90 CIR110 Low Air Pressure DTH Drilling Button Bit
CIR series DTH hammer, a kind of valve-equipped Low-Air-Pressure
hammer with single piston, a plate valve and a central exhaust
structure. The compressed air is adopted as the driving force. To
prevent dust pollution and get a better performance, some
high-pressure water may be added into the air for wet rock
It is mainly featured in:
1. The strong energy of single impact and the low engergy
consumption in rock crushing.
2. The weight ratio of piston and bit almost reaches 1:1 to provide
long effective acting time, which leads to the improved efficiency
in rock crushing and the extended service life of the drilling
3. A good performance in central air exhaust and cutting discharge,
which reduces the repeated crushing of rock.
4. A check valve device is available to drill holes under water.
The CIR series DTH hammer, an ideal drilling tool, is widely used
in such industries relating to
CIR series Low Air Pressure DTH Drilling Button Bit:
|Hammer Model||Diameter||No.*button dia. (mm)||No.||Weight|
|mm||inch||gauge buttons||front buttons||flushing hole||kg|