We provide high pressure DTH hammer from 3" to 18" for Secoroc COP, Bulroc BR, Ingersoll-rand IR/QL, M, Halco Mach, Sandvik SD, etc

They are a convertional DTH hammer (with footvalve). The details specifications as following: 

 

3"- 5" DTH hammer:

 

 

3" DTH hammer data:

 

4" DTH hammer data:

 

 

5" DTH hammer data:

 

 

6" DTH hammer:

 

6" DTH hammer data:

 

 

8" DTH hammer:

 

8" DTH hammer data:

 

 

10" DTH hammer:

 

10" DTH hammer data:

 

 

12" DTH hammer:

 

12" DTH hammer data:

 

Please feel free to contact me for more and newest informations about them.