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Built to Perform. Engineered to Last.

From large-scale castings and precision-machined components to custom baseplates, Bay Cast delivers the expertise, capacity, and craftsmanship to take complex projects from concept to completion.
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WHAT WE DO

Built for the Biggest Challenges.

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BUILT FOR STABILITY Precision Baseplates
BUILT FOR STABILITYPrecision Baseplates

Engineered for demanding applications, our custom baseplates deliver the strength, stability, and precision your equipment depends on. 

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POURED WITH PURPOSE Large-Scale Castings
POURED WITH PURPOSELarge-Scale Castings

From complex geometries to massive components, we combine deep foundry expertise with the capacity to produce castings built to perform. 

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BCI-44
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PRECISION AT SCALE Advanced Machining
PRECISION AT SCALEAdvanced Machining

Our large-format machining capabilities turn complex castings and components into finished parts with exceptional accuracy and consistency. 

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SOME OF OUR

Valued Clients

We love collaborating with our valued clients to solve their complex baseplate needs.
BEYOND CAST IRON

Markets Served

Space
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Space
Space
Space production demands large, high-integrity steel components that can’t fail. Bay Cast pours and/or machines heavy structural and pressure-bearing parts for rocket components, test stands, and ground support equipment. We document chemistry, mechanical properties, and inspection results from melt to final machining.
Power Gen - Energy
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Energy
Energy
Power generation runs on castings built for decades of heat, pressure, and cyclic load. Bay Cast supplies large steel castings and precision-machined components for turbines, compressors, and power-generation equipment. We meet the weld-procedure, NDT, and traceability requirements the industry’s major OEMs expect.
Defense
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Defense
Defense
Defense programs need a domestic supplier that can hold specification on critical, heavy-section parts and still deliver on schedule. Bay Cast is an American foundry and machining operation producing steel castings and finished components for defense platforms and the equipment that supports them, with full material traceability and inspection documentation.
Infrastructure - Industial
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Infrastructure
Infrastructure
Bridges, sewer systems, and transportation depend on steel components sized for loads most foundries can’t handle. Bay Cast casts and machines large structural and mechanical parts for civil and heavy infrastructure, where service life is measured in generations.
BCI-9
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Heavy Industrial
Heavy Industrial
Heavy machinery, mining, steel production, and process equipment all need large, tough castings that arrive ready to install. Bay Cast takes parts from pattern through pour, heat treatment, and precision machining under one roof, giving industrial OEMs one accountable supplier instead of three.
ABOUT US

Built on Experience.
Focused on Excellence.

For more than 80 years, Bay Cast has been a trusted partner to industries that demand strength, precision, and reliability. From large-scale castings to precision machining and engineered baseplates, we combine generations of manufacturing expertise with advanced technology to deliver solutions built for the toughest applications.

From oversized castings to precision-finished parts, Bay Cast provides large-format machining under one roof with our foundry.

One source, pour to finished part — melted, molded, heat treated, inspected and machined in Bay City, Michigan.

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CERTIFIED FOR CONFIDENCE

Manufacturing Specifications

Our company has in-depth knowledge of the many common manufacturing specifications as well as working within customer specific, proprietary requirements: