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Home> Company News> Precision Inside the Micron: Ningbo Yijun Punch Grinding & Turning Workshop

Precision Inside the Micron: Ningbo Yijun Punch Grinding & Turning Workshop

2026,06,03
In high-precision cold heading, punch pin performance dictates your line's efficiency. Welcome behind the scenes at Ningbo Yijun, where premium tungsten steel transforms into industrial masterpieces:
Precision Inside the Micron: Ningbo Yijun Punch Grinding & Turning Workshop
Ultra-Precision: OD/ID grinding achieves tolerances within plus or minus 0.002mm for perfect coaxiality.
Mirror Finish: Surface roughness controlled at Ra 0.1 um or smoother to minimize friction and early wear.
Premium Carbide: Sub-micron grain tungsten steel (HRA 88 to 91) extends tool life by 30% to 50%.
From rigid turning to final mirror grinding, we don't just manufacture molds—we engineer durability.
Precision Inside the Micron: Ningbo Yijun Punch Grinding & Turning Workshop
? Ready to optimize your cold heading efficiency?
Share your material grades, dimensions, or drawing requirements with our engineering team today for a tailored solution!
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Author:

Mr. yjfastener

E-mail:

hou@citool.com

Phone/WhatsApp:

+8615826187211

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