FIELD: construction machinery and equipment. SUBSTANCE: hydraulic pulsing tamper is intended for compaction of ground bases and surfacing of earth roads and also bottoms of basins for foundations. Hydraulic cylinder piston in tamper is made as double-side with spring which is installed oppositely to tamping plate. Power drive of piston incorporates flywheel and hydraulic control valve for idle running. Aforesaid embodiment of tamper is aimed at increasing efficiency of earth compaction due to high power, simple design and economical operation. EFFECT: higher efficiency. 2 dwg
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