FIELD: process engineering.
SUBSTANCE: invention relates to repair and rescue operations. Air-driven impact mechanism comprises hollow casing with compressed air feed opening, barrel accommodating hammer and compressed air release opening. Membrane is arranged on the casing, at barrel inlet. Casing inner space accommodates radiator with heating element.
EFFECT: destruction of hard rocks in congested conditions and in places inaccessible for standard tools.
6 cl, 5 dwg
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