Hydraulic Vibratory Hammer is a pile driving and excavation on construction machine broadly used in all kings of foundation construction work. The machine utilizes its periodic excitiong force to hydraulically press the soil around the pile so as to reduce the soil's frictional resistance to the pile, and utilizes the pile's own weight and the weight of the pile hammer, and applies a pressure downward if necessary to force the pile enter into the soil; or on the contrary applies a pulling force upward to pull the pile out of the ground.
Beacuse of its low noise, excellent pile-sinking effect, capability of being used under the water & other advantages, the hydraulic vibration hammer develops rapidly and is broadly used in the pile-sinking & pile-puling construction.