The machine is a single structure of frame, lapping, drive. Installation of parts for machining is carried out in three rings, having synchronous rotation from the rotation of the lapping, for small parts can be provided cassettes made of textolite. The machine is designed for roughing and finishing (finishing) lapping finishing of sealing surfaces of parts of pipeline valves: wedges of gate valves, valve spools, gates, seats, valve plates, flat parts of general engineering, etc.
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