RV 516 Valve refacing machine
CENTERLESS VALVE REFACING MACHINE
RV 516 centerless valve refacer is, thanks to the technical solutions
adopted, one of the fastest and most accurate machine now available on
the market. The centerless grinding system, with the rotation of the
valve on its stem, grants a perfect concentricity between head and stem
(within 0,01 mm) and handles a large range of valve stem diameters from
4 up to 16 mm, without need of changing any collets or chucks.
The drive system of valves is given by three rollers, the upper of
which is canted in order to feed valve against an adjustable precision
end stop: this offers an accurately valve controls length on every
valve and avoids to manually feed valve into or away from grinding
wheel during refacing.
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