FIELD: construction machinery and equipment. SUBSTANCE: pile driving hammer has cylinder body, piston, anvil block of intermediate member, liquid column enclosed between intermediate member and cylinder bottom, inlet and outlet passages. Cylinder and intermediate member are connected with guide bolt. Introduction of liquid column in hammer design allows for control of amplitude and action of impact pulse in pile, thus increasing its service life when driven in ground. EFFECT: higher efficiency. 1 dwg
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| 0 |
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