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Custom Bronze Fabrication & Precision Components

Pen Manufacturing delivers custom bronze fabrication and bronze metal fabrication for OEMs, mechanical engineers, and procurement teams across the United States. From our AS9100- and ISO 9001-certified facility in Anaheim, California, we machine, fabricate, finish, and assemble precision bronze components — bearings, bushings, marine hardware, and wear parts — for prototype, low-volume, and high-volume production.

There are wide arrays of alloys that can be categorized as bronze, and we work with experts to provide our customers with the perfect composition of bronze, copper, and tin. Bronze makes up a large amount of the nitty gritty components of the world and has been used for millennia. Bronze is a popular metal to work with and used in many industries because it offers high strength at a low density, non-magnetic, and can be a great conductor of electricity and heat.

When a part has to survive friction, saltwater, or decades of load cycles, bronze earns its keep — and so does the shop that knows how to work it. Get a Quote and upload your CAD files to get started.

Bronze - bronze

What Is Bronze Metal Fabrication?

Bronze metal fabrication is the process of machining, cutting, forming, and joining bronze — a family of copper alloys based on tin, and extending to aluminum, phosphor, and silicon bronzes — into finished components. Manufacturers specify bronze where wear resistance, seawater corrosion resistance, and non-sparking safety matter most: bearings, bushings, marine hardware, and heavy-equipment wear parts.

At Pen Manufacturing, bronze work runs entirely in-house, from raw bar and tube to machined, finished, and assembled parts — one accountable partner for mission-critical components.

Benefits Of Bronze Forging

Frequently Asked Questions

Bronze is the standard material for parts that slide, rotate, or live in seawater: bearings, bushings, thrust washers, gears, pump and valve internals, marine hardware, and wear plates. Its non-sparking, non-magnetic nature also makes it the required choice for hardware in explosive or hazardous environments like mining and energy facilities.

Both are copper alloys, but bronze (copper plus tin) is the harder, more wear-resistant of the two — built for bearings, bushings, and marine service — while brass (copper plus zinc) machines are faster and suit fittings, terminals, and decorative hardware. If your part rubs, rotates, or lives in saltwater, bronze usually wins. We fabricate both.

Yes, with the right experience. Bearing bronzes like C932 machine freely and take excellent surface finishes, while aluminum bronzes are tougher and punish poor setups. Our machinists run proven parameters for each family and verify critical dimensions on calibrated Keyence CMM equipment, holding tight tolerances from prototype through production.

Bronze runs with low friction against steel shafts, resists galling, and tolerates heavy loads and marginal lubrication. Softer bearing bronzes even embed stray contaminant particles, protecting the more expensive shaft from scoring. The result is long, predictable wear life — which is why bronze has anchored bearing design for over a century.

Bronze is one of the best commonly available metals for seawater service, resisting corrosion where steels fail — the reason it dominates marine hardware, shaft sleeves, and fittings. Surfaces develop a stable protective patina over time rather than destructive rust, and aluminum bronzes extend that resistance further for demanding offshore applications.

Yes. One Anaheim, California facility and one AS9100/ISO 9001 quality system carry your custom bronze parts from first article to repeat high-volume orders, with machining, fabrication, finishing, and assembly all in-house — so scaling up never means requalifying a new vendor mid-program.