Dth hammers(for deeep and super deep hole drilling)

Key Attributes.

The DTH hammer is widely used in drilling blasting holes,drainage and ventilating holes,center holes of raising boring deep blasting holes in trading drilling and blasting methods ofraising,pipe holes and other deep holes in all of various strength rocks in open pit and underground minings. They are specially designed for drilling holes with depth over 500 meters. Every part for impacting and connecting adopt specialized steel with high strength, unique heat treatment, and more accuracy machining. The whole sets are very reliable. A protection device is added to avoid any abnormal conditions under the deep well. 1.Drilling dia:180-800mm 2.working air pressure:0.6-2.5Mpa 3.Matched bits,DHD:COP,MISSION,BR,QL