Application Examples

Spool for hydraulic valve / General machinery / OD, Seat surface

Overview

Type of industry General machinery
Type of part General machinery part
Name of part Spool for hydraulic valve
Material SCM415
Dimension ø40 mm(1.5 in) × 200 mm(7.8 in)
Grinding surface OD, Seat surface
Roundness OD: 1µm(0.00004 in)
Seat surface: 1µm(0.00004 in)
Cylindricity OD: 1.5µm(0.00006 in)
Coaxiality Seat surface: 2µm(0.00008 in)
Grinding accuracy Dimensional tolerance
OD: ø26 + 0.003/0
Seat surface: 90° + 15'/0
Cycle time 1.5 min.

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