📐 Instrument Housings & Enclosures

For EMI/RFI shielding: aluminum 6061 with conductive coating. For optical instruments: aluminum 6061-T6 with black anodizing (reduces internal light reflection) or stainless steel 304/316 for vacuum and clean-room environments. For portable instruments: aluminum or machinable plastics (PEEK, Delrin) for weight reduction.

We hold ±0.01mm on mating surfaces and ±0.05mm on overall housing dimensions. Seal grooves for O-rings and gaskets are machined to ±0.05mm width and depth. For EMI-shielded enclosures, we maintain surface flatness within 0.05mm per 100mm to ensure proper gasket compression.

Yes. We install Heli-Coil threaded inserts, Keylocking inserts, and press-fit brass bushings per customer specifications. For applications requiring repeated assembly cycles, we recommend Keylocking inserts in aluminum housings for superior thread durability. Inserts are installed and flush-checked before final inspection.

Yes. For cosmetic surfaces we achieve Ra 0.8µm or better, with smooth transitions and no visible tool marks. We deburr all internal and external edges — including blind holes, intersecting bores, and internal cavities. For high-end instruments, we offer bead blasting and brushing before anodizing for a consistent matte finish.

We routinely machine complex internal cavities using 5-axis milling, EDM (ram and wire), and precision boring. Our CAM programming optimizes tool paths for internal features with minimal tool overhang. We achieve internal corner radii as small as 0.1mm (end mill) and 0.05mm (EDM). Internal cavity surface finish is verified with borescope.

We machine O-ring grooves for static seals (Buna-N, Viton, EPDM, silicone), gasket seating surfaces for EMI gaskets, and tongue-and-groove sealing joints for IP-rated enclosures. For submersible or high-humidity environments, we recommend O-ring seals with vacuum port testing. We also machine hermetic seal pockets for glass-to-metal seal feedthroughs.