WHY GENERAL FOUNDRY

Precision Metal Castings Since 1946

You’re evaluating foundry partners. You need a supplier who understands your geometry, meets tight tolerances, delivers on schedule, and saves you from having to coordinate multiple vendors to finish a part. Here’s why engineers and buyers pick GF… and keep coming back.

Single-source delivery

Patternmaking, five casting processes, precision machining, and full finishing – coordinated under one roof so you receive finished, ready-to-use parts without juggling suppliers.

Design-first focus

We prioritize meeting design intent and manufacturability from the start, reducing rework and accelerating time-to-production.

Proven reliability

Capabilities were added only in response to customer needs, ensuring practical solutions tested in real projects.

Tight tolerances, consistent quality

Experienced craftsmanship plus process controls to meet demanding specifications repeatably.

On-time performance

Production planning and integrated workflows that minimize delays and simplify your supply chain.

Why Work With General Foundry Service?

Precision castings. One partner. Total accountability.

ITAR‑registered and ISO 9001:2015‑certified

Disciplined, secure manufacturing you can trust for regulated, high‑quality parts.

We Won’t Tell You “We Can’t Cast That Alloy”

We offer a broad range of aluminum and zinc‑aluminum alloys and match metallurgy to application to deliver the optimal balance of strength, weight, corrosion resistance, and finish. Our aluminum options are selected for strength‑to‑weight, machinability, and surface preparation, while zinc‑aluminum choices prioritize die‑castability, fine detail, and superior appearance. We recommend alloys based on load conditions, service environment, coating, and post‑processing plans, and explain the trade-offs – strength versus weight, corrosion resistance versus finishability – so you can make an informed decision. When standard alloys fall short, we can develop tailored chemistries or workarounds to meet your requirements.

We Don’t Force You Into One Casting Process

We evaluate your part geometry, tolerances, and end-use to pick the optimal casting process rather than fitting every job to a single method. That means small, intricate features, large sections, thin walls, and complex cores each get the process best suited to producing the required detail, integrity, and performance – so your part, not our equipment, drives the decision.

No more managing three vendors for one finished part

With patternmaking, tooling, 16 CNC machines and finishing all under one roof, we deliver near‑net‑shape castings through precision machining to final readiness – and a single point of accountability so you don’t have to coordinate multiple suppliers.

Eliminates supply‑chain delays and unexpected costs

By consolidating production and finishing in one location, we cut transit time and freight expenses, avoid time‑zone and coordination mixups, enable same‑day problem diagnosis and quick parts pickup, and reduce the chance of schedule‑crushing surprises – resulting in more reliable delivery dates, lower total landed cost, and faster issue resolution.

You don’t need to educate us on every project

With over 150 years of combined foundry experience across our team, we bring deep institutional knowledge and continuity that lets us anticipate issues, propose practical design-for-manufacture solutions, and resolve complex challenges before they become costly delays.

One Facility. One Contact. One Standard of Quality.

Our turnkey, single‑source model brings foundry, machining, and tooling together under one roof, eliminating handoffs that cause delays, miscommunication, and hidden costs. That control delivers predictable pricing, faster delivery, and clear accountability so you get finished parts on time and to spec without managing multiple vendors.

Testimonials

What engineering and procurement leaders say about partnering with us.

"I have worked with several different vendors, guys but I've honestly never-ever-ever gotten to a clean FAI this quickly. Thanks for the hard work."
— Medical device mechanical engineer (California)
"Once again, I very much appreciate and value your attention to little details. The bases are beautiful, and solid as a rock. This device is really coming together, and your castings are playing a huge part in the overall success. Kudos to your team."
— Medical device prin. mechanical engineer (California)
"Again, great follow up, thanks for the tracking; General Foundry's quality of work is great, even our inspection team said wow (and that's rare) so great job."
— Medical device procurement manager (California)

Meet Our Team

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San Leandro Facility and Integrated Workflow – West Coast Advantage

Located in San Leandro, California, General Foundry Service operates a purpose‑built 65,000 sq. ft. facility that co‑locates patternmaking, five casting processes, CNC machining, and finishing under one roof. Proximity to Silicon Valley, the biotech corridor, semiconductor companies, and West Coast defense contractors provides additional value for local customers: same‑day site visits, faster West Coast shipping, and time‑zone alignment that accelerates prototype cycles and tight collaboration compared with East Coast or Midwest suppliers.

Industry Associations and Outreach

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American Foundry Society

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Aluminum Association

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National Tooling and Machining Association (NTMA)

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California Metals Coalition

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Manufacturing Day and regional workforce development initiatives

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Local manufacturing and education outreach programs

How Our Participation Benefits Customers

  • Industry Best Practices: Access to current best practices in metallurgical control, sustainability, and process optimization.
  • Regulatory Visibility: Early visibility to standards and regulatory changes that affect material selection and qualification.
  • Strategic Collaboration: Collaboration opportunities for co-development, prototyping, and qualified supply-chain sourcing.
  • Workforce Continuity: Workforce pipeline initiatives that support skilled labor continuity for long-term production programs.

Questions, comments, or ready to get started on your next project?

Contact us to discuss our committee participation, request verification of leadership roles, or obtain detailed information about our technical contributions. For expedited and accurate pricing, provide project specifications, part drawings, and/or 3D models; we will return a detailed quote, recommended alloys, and process specifications promptly.

Let's start with a conversation.

See what a true multi process, turnkey foundry partner can do for your next project.