FIELD: mining industry. SUBSTANCE: this is used in driving development workings. Operating member of heading machine has rock-crushing tool, and each cutting member of it is installed in head with possibility for longitudinal displacement relative to its geometric axis by means of for example, threaded pair, when head is pivotally connected with boom. Also provided is heater installed on additional boom. Head and heater can turn around geometric axis of boom to which they are connected by means of individual turning mechanisms. Device ensures optimal mode of heating rock with subsequent breaking depending on rock hardness. EFFECT: high efficiency. 1 cl, 2 dwg
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