piston rods (precision shafts）

Materials

45^#40Cr,2Cr13,Sus304 ect

Specification length
Φ6-Φ12        800mm--2000mm
Φ16--Φ40     1200mm--4000mm
Φ45--Φ150    1500mm--8000mm

Supply condition
ground and chrome

Chrome thickness
20-30 micron

Surface roughness
Ra<=0.2 micron and Rt<=2 micro

Tolerances on dia
iso f7 on the diameter

Ovality
Half of the tolerance iso f7

Straightness
<=0.2mm/m

Surface hardness
850-1150HV(vickers 100g)