More Than Metal, We Build Reliability

United Alloy is a leading U.S. manufacturer of custom metal fabrications, welded assemblies, powder-coated components, fuel tanks, trailers, skids, base frames, sheet metal products, plenums, and engineered structural assemblies. We partner with OEMs and system integrators that require high-performance products built for critical applications.

United Alloy serves OEMs, integrators, packagers, and other customers

supporting:

• Power generation
• Industrial infrastructure
• Utility Infrastructure (Power and Energy, Water and Wastewater)
• Mission Critical Infrastructure (Emergency Response, Healthcare, Telecom, Digital)
• Construction equipment
• Energy
• Transportation
• Mobile equipment
• Other industries where safety, reliability, and precision manufacturing are essential

United Alloy combines advanced capabilities and rigorous quality systems to manufacture complex products that perform in demanding environments:

• Engineering expertise
• Advanced fabrication technology
• Robotic welding
• Large-scale powder coating
• ISO 9001-certified quality systems

We don’t simply fabricate parts—we solve manufacturing challenges and deliver production-ready solutions.

Yes. United Alloy specializes in custom metal fabrication for OEMs, including:

• Engineered weldments
• Structural fabrications
• Tanks
• Trailers
• Skids
• Enclosures
• Complete assemblies

Projects are built to customer specifications while optimizing manufacturability, quality, and long-term performance.

Our engineering team supports customers throughout the product development process, including:

• Design for Manufacturability (DFM)
• 3D CAD modeling
• Finite Element Analysis (FEA)
• Prototype development
• Validation testing
• Pressure and load verification
• Regulatory compliance support
• Professional Engineer (PE) certifications in the U.S. and Canada

Our collaborative engineering approach helps reduce manufacturing costs, improve product performance, and accelerate production readiness.

Yes. United Alloy is a trusted contract manufacturing partner for OEMs requiring complex fabricated products and assemblies. We support projects from prototype through full-scale production with scalable capacity across multiple U.S. manufacturing facilities.

Our advanced manufacturing capabilities include:

• CNC laser cutting
• 6-axis plasma cutting
• Large-scale robotic welding
• CNC forming and fabrication
• Heavy beam drilling
• Plate rolling
• Structural steel fabrication
• Massive in-house powder coating
• Assembly and integration
• ERP-driven manufacturing and barcode tracking

These capabilities allow us to produce high-quality, repeatable products at scale.

Yes. United Alloy operates one of the largest in-house powder coating operations in the industry. Our continuous monorail paint system and oversized powder coating ovens accommodate fabricated components up to 60 feet long, 16 feet wide, 16 feet high, and weighing up to 40 tons.

Our UL 1332-recognized powder coating process delivers exceptional durability, corrosion resistance, and finish quality.

Quality welding is fundamental to every project. All United Alloy welders are AWS D1.1 certified, with many also certified to AWS D1.3. Each manufacturing facility employs Certified Weld Inspectors (CWIs) to ensure consistent weld quality and compliance.

Yes. United Alloy is a leading manufacturer of engineered steel and stainless-steel

tanks for commercial and industrial applications. Our capabilities include:

• Above-ground tanks
• Protected fire-rated tanks
• Perimeter and cover-mount generator sub-base tanks
• Hydraulic reservoirs
• DEF tanks
• Stainless steel tanks
• Mobile tanks approved for Transport Canada
• Custom OEM tanks from 50 to 20,000 gallons

Every tank is engineered, fabricated, coated, and tested to meet customer specifications and applicable industry standards.

Yes. United Alloy designs and manufactures heavy-duty custom trailers for generators, pumps, compressors, heaters, light towers, and other mobile equipment. We produce single-, tandem-, and tri-axle configurations, including flat-deck, modular, and tank-trailer combinations, with ratings up to 30,000 pounds GVWR.

United Alloy manufactures complete fabricated assemblies including:

• Structural steel assemblies
• Base frames
• Equipment skids
• Weldments
• Sheet metal enclosures
• Walkways
• Stair systems
• Service platforms
• Loading docks
• Integrated OEM assemblies

With our engineering-first approach assemblies are production-ready and built for long-term durability.

Yes. We fabricate precision sheet metal products including:

• Electrical enclosures
• Equipment panels
• Ventilation components
• Louvers
• Screens
• Custom fabricated parts for both high-volume production and specialized applications

Yes. United Alloy engineers and fabricates complete exhaust plenum systems featuring:

• Structural steel towers
• Stainless steel exhaust piping
• Acoustic insulation
• Modular assemblies

Our plenum systems are engineered to meet ASCE 7 wind load and seismic requirements while simplifying field installation.

Yes. United Alloy is ISO 9001 certified, demonstrating our commitment to documented quality systems, continuous improvement, and consistent manufacturing excellence.

United Alloy manufactures products that meet numerous industry standards, including:

• UL 142/ULC 601 above-ground tanks
• UL 142A/ULC 601 generator sub-base tanks
• UL 2085/ULC 655 fire-rated, protected above-ground tanks
• UL 1332 powder coating process
• NATM compliance
• Transport Canada approval
• PPAP support
• Testing to customer and industry specifications

Yes. United Alloy is nationally certified by the Women’s Business Enterprise National Council (WBENC) as a Woman-Owned Business, reflecting our commitment to diversity, inclusion, and business excellence.

All three manufacturing facilities are proudly located in the United States: Janesville, WI; Seguin, TX; and Union, Ohio. Our three domestic manufacturing facilities provide dependable quality, production flexibility, and supply chain reliability for customers throughout North America.

United Alloy operates more than 1.17 million square feet of manufacturing space across three strategic U.S. locations:

• Janesville, Wisconsin (Headquarters)
• Seguin, Texas
• Union, Ohio

This nationwide footprint provides scalable production capacity, regional responsiveness, and manufacturing redundancy for complex programs.

United Alloy employs more than 1,000 people and operates over 1.17 million square feet of manufacturing space across Wisconsin, Texas, and Ohio. Since 1999, we’ve grown into one of the nation’s premier metal fabrication and manufacturing partners for OEMs.

OEMs choose United Alloy because we combine:

• Engineering expertise
• Advanced manufacturing
• Rigorous quality systems
• Responsive customer service
• Large-scale production capabilities

Our customers rely on us for consistent execution, dependable delivery, and solutions that perform in the most demanding applications.

Quality is integrated into every stage of production through:

• Documented processes
• ISO 9001-certified systems
• Quality gates
• Vision systems
• Mobile inspection technology
• Error-proofing (Poka-Yoke)
• Root Cause Corrective Action (RCCA) methodologies
• Continuous employee training

This disciplined approach delivers consistent, repeatable quality across every facility and every program.

United Alloy works with OEMs and industrial manufacturers on projects ranging from prototypes to full production. You can submit a Request for Quote (RFQ) through our website, and our engineering and sales teams will review your project requirements and provide a timely response.