Contact pins, probe plungers and barrels, guide pins, and ferrule sleeves — our strongest work is below Ø2 mm. Production batches from 1,000 pcs, with material certificates and lot traceability on request.
Most shops treat custom, small-batch, or micro-tolerance parts as an inconvenience — slow quotes, high minimums, or a flat no. OUJI is built around exactly that work: professional non-standard customization and micro-precision machining, run as a specialty rather than a side job. Our engineering team averages over a decade of hands-on precision machining experience — young enough to move fast, experienced enough to hold tolerance the first time.
Three things that matter most when a part doesn't fit a standard catalog process.
A firm quote in 12 hours, not days of back-and-forth — evaluating us costs you almost nothing.
Custom and small-batch parts get the same production discipline as standard runs — nothing slips because it's "just a one-off."
From bar stock to optical inspection, every step for micro and Swiss-type parts happens in-house — nothing handed off.
Milling, fabrication, and larger turned parts are covered on our main site.
Ø0.1–10 mm turned parts, strongest below Ø2 mm. Slender pins, shafts, and sleeves finished in a single back-spindle setup.
Spring-probe plungers and barrels, connector contact pins, guide pins, and fiber-optic ferrule holders and sleeves.
Production runs from 1,000 pcs, typically several thousand. Gold-over-nickel plating available for contact parts.
Brass, stainless steel, beryllium copper (C17200), Kovar, titanium, and PEEK — with EN 10204 3.1 certificates on request.
Every photo here is our own floor — not stock imagery.
oujimfg.com is OUJI's direct contact point for new inquiries. Our full site — capabilities, case studies, and the materials guide — lives at ouji-tech.com.
Send your part files, quantity, material, and key requirements — our engineering team reviews and responds directly.
