We are the manufacturer of most complete models of DTH hammer and bits in China. It includes:
a) High pressure DTH hammer
1) 3.5" hammer, shank : DHD3.5
2) 4" hammer, IR DHD340A / SD4 / COP44 / QL40 shank
3) 5" hammer, IR DHD350R / SD5 / COP54 shank
4) 6" hammer, IR DHD360R / SD6 / COP64 / QL60 shank
5) 8" hammer, IR DHD380 / SD8 / COP84 /QL80 shank
6)10" & 12" hammer, SD10/SD12 shank
b) Low pressure DTH hammer
BR1, BR2, BR3, J60, J80, J100, etc
c) also can produce the DTH bits suitable for above DTH hammer and BR3, SD12 shank DTH hammer. The biggest size we have exported is 380mm for SD12.

     DTH hammers are manufactured to global standards, from the best available alloy steel, machined to high precision and high standards. All the components are heat-treated in state of the art fully processed controlled facility.