polishing shaft or called piston rod

material is ck45 or stainless steel 304,410

polishing shaft is used for water pump, some is hard chrome plated polishing shaft will be used to hydraulic industry.

More detail for polishing shaft is

tolerance is f7,

chrome thickness is 20-30microns

length tolerance is +/-10mm

surafece roughtness Ra0.4or 0.2

straightness is 0.2mm/m

corrosion resistence is tested in nautral salty spray according to astm b117-96 hours

There is no craks , breaking or detaching after thermic shock.

After mass production there is mill test report for polishing shafts

package usually is used wooden case for export standard

oil lubricated+o-ring-waterproof material in cundles + wooden case

Special request is acceptable, but pls contact with us in advance. No mater the size, tolerace and package we will do our best to meet your demand.