ProductsPrecision Machining of Metals & Resins
Where Microns Matter. Crafted for Absolute Accuracy
In high-tech industries, the smallest details often make the biggest difference. At Seiken, we specialize in ultra-precise machining that meets the most demanding standards of today’s manufacturing environment. With decades of experience in producing fine components like contact probes and electronic testing fixtures, we’ve mastered the art of precision from the inside out.
From micron-level drilling to intricate lathe work, Seiken delivers the accuracy and consistency that modern engineering requires—whether for custom parts, prototypes, or full-scale production. Seiken is your partner for high-precision machining—backed by expert craftsmanship, advanced equipment, and a relentless commitment to quality.
Your Challenges, Our Solutions
Struggling to find a supplier for complex machining work?
Dealing with long lead times or pricing that doesn’t meet your expectations?
Need smooth support from prototyping to mass production?
We’re here to solve that. Seiken’s end-to-end machining services offer fast, reliable support from one-off prototypes to mass production—with a focus on precision, quality, and responsiveness.
Turning (Lathe) Machining
- Our turning services extend far beyond probes. We produce an array of rod-shaped components with unmatched precision, including: Set Pins, Alignment Pins, Tubes and Hollow Parts.
- We work with a wide variety of materials to meet your specific application needs: SK steel, beryllium copper, brass, phosphor bronze, palladium alloys, stainless steel (SUS), and more.
Drilling & External Machining
Seiken’s high-precision drilling supports both integrated systems and standalone components. We machine everything from delicate resins to tough metals and ceramics with accuracy and care.
Supported materials include:
- High-performance resins: Sumika Super (formerly Econol), PEEK, Topfine, acrylic, Unilate
- Machinable ceramics: Photoveel
- Metals: Aluminum, brass, and others
We can handle your most demanding drilling needs—from plastics to ceramics to metals. Seiken provides the solution.
Key Features & Advantages
01 Advanced equipment to meet a world of challenges
Our facility is equipped with a wide range of NC automatic lathes and machining centers, enabling us to handle: small-batch precision jobs, large-scale production runs, specialized custom orders with tight tolerances and more.
02 Micro-precision you can count on
Capable of machining components as small as φ55μm—perfect for probe tips and miniature fittings.
03 Pushing the limits of fine-feature processing
Achieving hole diameters as small as φ60μm—critical for high-precision parts such as probe card bases.
Application Examples
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- Metal rods, pins, and tubes
- Custom resin parts for electronic fixtures and devices