FIELD: mining. SUBSTANCE: grinder has bed 1 provided with fixed web 2 and movable web 3. The movable web 3 is set in motion by the multi-link drive comprising connecting rods 4 with shaft 5 and spacing plates 6. The middle part of the movable web is fitted on axle 7. Connecting rods 4 are mounted on one shaft 5. EFFECT: enhanced efficiency. 1 dwg
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