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Electrical Aluminum Castings

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Since 1988, Premier Aluminum LLC has been a trusted U.S. manufacturer of high-quality permanent mold aluminum castings serving customers across the electrical, industrial, and energy sectors. Located in Racine, Wisconsin, our foundry combines decades of aluminum casting expertise with advanced machining, finishing, and testing capabilities to deliver fully integrated solutions for the electrical industry.

Aluminum’s unique balance of strength, lightweight performance, and electrical conductivity makes it ideal for modern electrical applications. From enclosures and housings to connectors and heat-dissipating components, aluminum castings play a vital role in safety, reliability, and energy efficiency. With our advanced foundry processes, Premier Aluminum provides precision electrical aluminum castings that meet the industry’s demanding standards for performance, corrosion resistance, and dimensional accuracy.

image of electrical castings used in the power grid from Premier Aluminum

Aluminum Casting Advantages for the Electrical Industry

Aluminum offers several clear advantages that make it a preferred material for electrical equipment manufacturers:

  • High Electrical and Thermal Conductivity – Provides excellent current flow and heat dissipation, essential for power electronics and enclosures.
  • Lightweight Strength – Reduces overall system weight while maintaining the strength required for structural components and housings.
  • Corrosion Resistance – Protects electrical systems exposed to moisture, chemicals, or outdoor environments.
  • Design Flexibility – Permanent mold aluminum casting allows for complex geometries, threaded inserts, and thin walls with consistent precision.
  • Cost Efficiency – Ideal for low- to medium-volume production, offering repeatability with competitive tooling costs.
  • Sustainability – 100% recyclable material that supports environmentally conscious production.

By leveraging these material advantages, Premier Aluminum helps electrical manufacturers design components that are safer, longer lasting, and more efficient.

Premier Aluminum’s Capabilities for the Electrical Sector

Permanent Mold Casting

Our permanent mold aluminum casting process ensures exceptional repeatability, superior surface finish, and high mechanical integrity. Controlled mold filling and cooling produce dense, dimensionally stable components – ideal for precision electrical parts.

Semi Permanent Mold Casting

Semi permanent mold casting combines reusable metal molds with sand cores, allowing for more complex internal geometries than traditional permanent mold casting. This process is ideal for electrical components that require intricate passageways, reinforced structures, or specialized internal features. The result is a reliable, dimensionally consistent casting method that supports both design flexibility and high mechanical performance.

image of CNC machining of an electrical aluminum casting at Premier Aluminum

CNC Machining

We combine casting with CNC machining to achieve exact tolerances and detailed features required for electrical connectors, housings, and enclosures. With over 70 machining centers, Premier Aluminum delivers tight precision and consistent quality.

Tooling Services

Our in-house tooling design and maintenance capabilities reduce lead times and improve casting performance. We collaborate with customers to develop optimized tooling that ensures dimensional stability and production efficiency.

Testing & Quality Assurance

Electrical components demand zero tolerance for leakage or porosity. Premier Aluminum provides advanced helium leak testing, pressure decay testing, and x-ray inspection to confirm integrity and performance. Every casting undergoes stringent quality checks using CMMs and laser scanning systems.

Finishing & Coatings

We offer a full range of surface finishing and protective coatings, including anodizing, chromate, powder coat, plating, and passivation. These processes enhance electrical conductivity, corrosion resistance, and product appearance.

Full Service Assembly

For customers seeking a complete, ready-to-install solution, our Full Service Assembly program integrates casting, machining, finishing, and final assembly into a single turnkey process.

Common Electrical Aluminum Components

Electrical systems rely on durable and conductive parts that perform in demanding environments. Premier Aluminum manufactures a wide range of components, including:

  • Power distribution housings and covers
  • Electrical enclosures and junction boxes
  • Terminal blocks and contact assemblies
  • Heat sinks and thermal management components
  • Transformer and converter housings
  • Bus bars, brackets, and mounting structures
  • Conduit fittings and protective shells

Each component is engineered to deliver precision, strength, and performance for electrical applications across multiple industries.

Industries We Serve

While electrical applications represent a major focus, Premier Aluminum also supports a variety of markets that depend on aluminum casting technology. Our expertise extends to:

  • Food & Beverage
  • Construction
  • Transportation
  • Furniture
  • Medical
  • Electrical
  • Military
  • Robotics & Machine Tools
  • Turf Care
  • TV, Radio & Cable
  • Conveyor & Processing
  • Gasoline Dispensing

This cross-industry experience allows us to bring proven design solutions and manufacturing consistency to every electrical casting project we produce.

Why Choose Premier Aluminum?

Proven Industry Leadership

As a leader in permanent mold aluminum casting, Premier Aluminum provides technical excellence and proven reliability to customers worldwide.

Customer-Focused Collaboration

We value long-term partnerships, working closely with OEMs and design engineers to improve performance and reduce costs through smart casting and machining solutions.

Complete, Assembly-Ready Castings

From raw aluminum to machined, finished, and assembled components, our single-source manufacturing model ensures faster delivery and consistent quality.

Advanced Capabilities

Our facility includes:

  • 23 Horizontal Machining Centers
  • 18 Vertical Machining Centers
  • 31 Lathe Turning Centers
  • 19 Casting Stations
  • 4 Coordinate Measuring Machines
  • 1 Laser Scan System
  • Extensive melt capacity

Combined with our in-house finishing, testing, and assembly departments, these assets give us complete control over production quality and delivery.

U.S.-Based Manufacturing Excellence

Located on a 9-acre site with a 200,000 sq. ft. foundry and 4,500 sq. ft. office space, Premier Aluminum provides American-made reliability backed by over three decades of innovation.

When precision, conductivity, and reliability matter most, trust Premier Aluminum LLC for high-quality Electrical Aluminum Castings. Our permanent mold process, advanced machining, and integrated finishing ensure that every component meets the strictest electrical and mechanical performance standards.

Contact our team today to request a quote or discuss your next electrical casting project.

Phone: 262-685-1995
Address: 3633 S Memorial Dr, Racine, WI 53403
Website: www.premieraluminum.com
Google Maps: Find us here

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