high-quality precision steel balls

Detailed Descriptions

Type :

Steel ball

Punching range :

Diameter 0.***2.*5mm

Manufacturing technique:

Ball embryo forming - to ring band - coarse grinding - soft grinding - heat treatment - ball embryo forming – light ball - hard ground - fine lapping - super lapping

 

Tolerance :

0.**2mm

Testing equipmen

Vernier caliper , Micrometer, projector, coordinate measurement machine, height gauge, hardness tester, element analysis machine, plating scale thickness tester, pass check gauge , Angle ruler, plug gauge, radius gauge, roughness tester, salt spray testing machine .

OEM service :

According to customer’s drawings or samples

QC system :

**0% inspection before shipment

Packaging :

1)Dry packing and refresh oil packing.

2)As per customized specifications.