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QL60 shank 171 mm high air pressure DTH down the hole hammer drill bit without foot valve valveless

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QL60-171mm DTH down the hole drill bit without foot valve

 

 

Product Description

 

 

 

 advantages:

 

 

     1.Out of the trouble of foot valve fracture expansion and contraction.
     2.Lower energy consumption and higher impact frequency.The drilling speed is 15%-30% higher than the one with foot valve.
     3.Simple structure,reliable parts,long life span,easy and cheap maintenance.
     4.Lower air and oil consumption.The oil consumption is about 10% lower than the one with foot valve.

 

 

 

Scope of application:

 

 Mining, quarry, road building, well hole drilling, blasting, landslide prevention, dam reinforement, anchoring, geothermal, hydrology, etc

 

 

 

 

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