A hydraulic component maker producing needle valves, plungers and spool bushes, where sealing depends on the bore and the outside diameter being true to each other.
Parts are hardened, so turning is no longer an option. Grinding the bore on one machine and the outside on another stacks two setup errors, and the result shows up as leakage or premature wear in the assembly rather than as a dimension out of tolerance.
The WK1420x500 carries an internal spindle running to 14000 rpm alongside the outside diameter wheel head, so both features are ground in one clamping. The machine is rated 1.5 micron roundness on outside diameters and 2.5 micron on bores, with Ra 0.25 micron and Ra 0.63 micron surface roughness, and the table swivels from minus 5 to plus 9 degrees for tapers.
Standard machine ships in 15 to 45 working days after deposit. A CNC configuration is available with FANUC, SIEMENS, SYNTEC or GSK control, quoted separately.
Concentricity between bore and outside becomes a property of the machine setup rather than an accumulation of two. Figures quoted here are machine specifications, not measured results from a named customer installation.
OD and ID grinding on one machine, for shafts, bushes, needle valves and plungers.
CNC punch and pin grinding from 1 mm up to 150 mm, internal and external.
The larger centerless machine in the range, covering 0.5 to 60 mm diameter.
If the problem on this page looks like yours, send us the part and the batch size. We will tell you which machine fits and what it will and will not do.
