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1.The hydraulic hammer tool types often used.



2.Which type tool you should choose for your hydraulic hammer.
 

TOOL TYPE MOIL TYPE WEDGE TYPE BLUNT TYPE
Working principle
Key properties
Excellent penetration and good wedge effect
 		 Good penetration and excellent wedge effect Excellent energy transmission
Use in sedimentary rock
Primary breaking in lightly fissured or monolithic rock
 		 Primary breaking in heavily fissured rock Secondary breaking(breaking oversizes)
Use in crysalline/
magmatic rock		  
Primary breaking in heavily fissured rock
 		 Primary breaking in lightly fissured 
or monolithic rock as well as secondary breaking(breaking oversizes)