Custom Brass Fabrication & Precision CNC Machining - Custom Metal Fabrication Project Portfolio

Pen Manufacturing provides custom brass fabrication, metal fabrication, and precision brass CNC machining for OEMs, product engineers, and procurement teams across the United States. From our AS9100- and ISO 9001-certified facility in Anaheim, California, we machine, form, join, finish, and assemble custom brass parts for prototype, low-volume, and high-volume production.

Few metals reward experience like brass — it machines beautifully, joins cleanly, and finishes to a standard other alloys can't match. Get a Quote and upload your CAD files to put three decades of that experience on your next part.

Brass fabrication is the process of machining, cutting, forming, and joining brass — a copper-zinc alloy — into finished components. Manufacturers specify brass for its outstanding machinability, corrosion resistance, electrical conductivity, and bright, premium appearance, making it a staple in electronics, plumbing, telecommunications, and aerospace hardware.

As a full-service partner for brass custom metal fabrication, we handle every operation in-house — so your fittings, terminals, and housings move from raw stock to finished parts without leaving one facility.

Brass Applications We Fabricate

With the vast applications that brass provides we have used it to apply to an array of projects in industries such as aerospace, wastewater filtration, and more. Whether for free cutting brass, engraving, high-tensile, or gliding metal brass, applications of brass material include:

Brass is the benchmark other metals are measured against: free-cutting brass (C360) carries a 100% machinability rating, the standard every alloy is compared to. In practice, that means faster cycle times, superior surface finishes, and longer tool life — which keeps the cost of precision brass machined parts low at any volume.

Our brass CNC machining covers milling and turning of fittings, valve bodies, terminals, threaded inserts, connectors, and instrument components to tight tolerances, with critical dimensions verified on calibrated Keyence CMM equipment before shipment.

Brass Sheet Metal Fabrication & Forming

Brass's ductility makes it a pleasure to form: crisp bends, clean cut edges, and detail work — including engraving — that harder metals resist. We cut and form brass sheets into decorative panels, trim, contacts, shielding components, and precision brackets, holding consistent dimensions from first article through production.

Brass Enclosures & Housings

Conductivity is what sets brass enclosures apart. For RF and EMI shielding, instrument housings, and electrical terminal boxes, brass provides the electrical performance aluminum matches only with extra treatment — plus a finished appearance that works face-out on architectural and consumer-visible hardware.

Because brass solders and brazes so readily, we can build custom brass enclosures with seamless joined construction instead of visible fasteners, from one-off prototypes to production quantities.

From brass bar stock to round bar to brass tube, we offer brass material in all shapes. Brass can be easily joined to itself and all other copper alloys by soft soldering and brazing. Fabrication of intricate brass work is much easier than some other metals and results in cleaner lines due to elimination of screws, rivets, and other connecting devices.

We back that joining capability with in-house finishing and assembly, so polished, plating-ready brass components arrive as complete, ready-to-install units.

U.S. companies rely on our brass fabrication for electronics, electrical equipment, plumbing, telecommunications, automotive, aerospace, industrial machinery, and medical devices — as well as specialized applications like wastewater filtration. Where conductivity, corrosion resistance, machinability, or appearance drives the material choice, brass is often the answer, and we help you confirm it before metal is cut.

Brass parts are usually small, precise, and ordered in volume — which makes your fabricator's consistency the whole game:

Precision brass hardware rewards the shop that has made it for thirty years. From a one-off machined prototype to high-volume custom brass parts, Pen Manufacturing delivers AS9100/ISO 9001 certified quality on every run.

Get a Quote → — Upload your CAD files for a fast, detailed quotation. Questions about brass types or finishes? Call 714-992-0950.