Down hole hammer:DHD/CIR etc

Materials: 45# steel, 40#Cr, 20CrMnTi, 20#steel

DTH hammer range:

• 1.7'' DTH hammer

      low air pressure hammer CIR-50( KQ-50)

• 2" DTH hammer​

       low air pressure hammer CIR-65( KQ-65), CIR(KQ-76)

• 3" DTH hammer

​       low air pressure hammer CIR90 (KQ-90),

       medium air pressure hammer  CIR90(KQ-930)

       high air pressure hammer DHD3.5(KQH3.5)

• 4" DTH hammer

       low air pressure hammer CIR110 (KQ-110), CIR130(KQ-130)

       medium air pressure hammer  CIR110(KQ-940)

       high air pressure hammer DHD4.5(KQH45A)

• 5" DTH hammer

      low air pressure hammer CIR150(KQ-150)

      high air pressure hammer DHD5.5(KQH55A)

• 6" DTH hammer

      low air pressure hammer CIR170(KQ-170)

• 7" DTH hammer

      low air pressure hammer CIR200(KQ-200)

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