Trusted Partner for Transformer Assembly Manufacturing
High-performance transformer assemblies require accurate winding, correct core selection, and strict process control. Stantek supports industrial and defense manufacturers that need dependable low- to mid-volume production. As a U.S. Transformer Assembly Manufacturer, Stantek integrates transformers with the required wiring, terminals, connectors, insulation, mounting components, and other specified parts to produce completed assemblies. Stantek works from customer-provided drawings, specifications, and requirements to support consistent transformer assembly manufacturing from prototype builds through production.
Our engineering team collaborates closely with your design and technical groups from early development, providing engineering input on manufacturability, core material selection, insulation requirements, prototype builds, and testing protocols. This collaborative approach ensures every assembly performs as expected.Transformer Assembly Manufacturing Capabilities
We manufacture custom transformer assemblies for a wide range of applications and system requirements.- Transformer assemblies for power distribution, motor control, and renewable energy systems
- Low-voltage and high-voltage transformers including: 12V, 24V and 48V
- Toroidal, laminated, and encapsulated transformers for various form factors and efficiency needs
- Custom windings for specific current ratings, voltage requirements, and frequency applications
- High-performance cores including silicon steel, amorphous steel, and ferrite for optimized energy efficiency
- Insulation and protective coatings for moisture, chemical, and thermal resistance
- Overmolded, potted, and ruggedized transformer assemblies to withstand vibration, shock, and extreme environmental conditions
Stantek can integrate transformer components with wiring, connectors, terminals, housings, mounting hardware, insulation, and protective components according to customer specifications. Custom transformer assemblies can be configured for the electrical, mechanical, environmental, and connection requirements of the intended equipment or system.
Our assemblies are engineered to deliver stable electrical performance under vibration, thermal cycling, and electromagnetic interference.Industries We Serve
Stantek supports transformer assembly requirements across industrial and technology-focused applications, including:
- Industrial Equipment: Transformer assemblies support industrial machinery, automation equipment, motor controls, and electrical control systems that require reliable voltage conversion and electrical isolation.
- Power & Energy: Stantek supports assemblies used in power distribution, renewable energy, power conversion, and related electrical equipment based on customer specifications.
- Defense: Low-to-mid volume transformer assembly manufacturing supports defense applications requiring controlled production, traceability, and assemblies built to defined customer requirements.
- Electronics & Communications: Transformer assemblies can be integrated into communication equipment, electronic systems, control electronics, and other applications requiring stable and isolated power.
- Medical Equipment: Custom assemblies can support medical and electronic equipment where consistent electrical performance, controlled manufacturing, and documented quality requirements are important.
Why Choose Stantek for Transformer Assembly Manufacturing
For years, Stantek has been a trusted partner for companies seeking reliable transformer assemblies. Here are some reasons to choose us for your transformer assembly needs.- 99.9% Quality Assurance: Our manufacturing processes operate under a robust Quality Management System. ISO 9001:2015, IPC/WHMA-A-620, and J-STD-001 standards ensure every transformer assembly meets strict electrical, mechanical, and workmanship requirements.
- Just-in-Time Delivery: Lean manufacturing and Kanban-based inventory management optimize material flow, reduce lead times, and ensure timely delivery aligned with customer production schedules and product launch timelines.
- Low- to Mid-Volume, Fast Turnaround: We specialize in custom transformer assemblies in varied configurations, supporting engineering revisions, and accelerated timelines without sacrificing quality or consistency.
- U.S. Government, Industrial & Technology Compliance: Stantek is officially registered under ITAR and the United States Munitions List (USML), demonstrating compliance with U.S. government requirements for secure manufacturing and controlled product handling. Our assemblies are manufactured in accordance with applicable industry standards, customer specifications, and performance requirements for commercial, industrial, and regulated environments.
- Expert-Level Experience: Our engineering and production teams ensure proper wire gauge selection, core sizing, insulation class, and winding techniques. We've delivered transformers for applications ranging from medical devices to military communications equipment.
How Stantek Engineers Transformer Assemblies

Stantek follows a controlled manufacturing process to build transformer assemblies according to customer drawings, specifications, and production requirements. The process includes requirement review, component verification, assembly preparation, testing, inspection, and documentation.
- Drawings and Validated Lead Routing: Stantek reviews customer drawings and assembly requirements to establish the required connections, wire routing, termination points, and component placement. The specified lead routing is verified before production to support accurate and consistent assembly.
- Core Selection: Stantek verifies the specified transformer core and related materials based on the customer's electrical and application requirements. Core selection considers factors such as voltage, frequency, power requirements, and intended operating conditions.
- Winding Layouts and Insulation Spacing: Stantek follows the specified winding configuration and insulation requirements during assembly. Proper winding layout and insulation spacing help maintain electrical separation and support reliable transformer performance.
- Electrical, Thermal, and Environmental Materials: Stantek verifies materials required for the assembly based on electrical, thermal, and environmental requirements. These can include wire, insulation, protective materials, terminals, connectors, housings, and other specified components.
- Thermal Rise and Electrical Margins: Stantek reviews applicable thermal and electrical requirements to ensure the assembly meets the specified operating parameters. This includes consideration of thermal rise, electrical ratings, insulation requirements, and other project-specific performance criteria.
- Prototyping: Stantek can produce prototype or initial assemblies to verify component integration, winding configuration, connections, lead routing, and assembly methods before production. Prototyping helps identify manufacturing considerations before larger production quantities begin.
- Testing: Stantek performs applicable electrical and functional testing to verify the completed transformer assembly against customer and project requirements. Testing can help confirm connections, insulation, electrical performance, and other specified characteristics.
- Documentation and Full Traceability: Stantek maintains production and quality documentation throughout the manufacturing process to support component traceability, inspection, testing, and applicable compliance requirements. This provides a documented record of manufacturing and quality activities associated with the completed assembly.
Applications of Transformer Assemblies

Transformer assemblies support electrical and electromechanical systems that require voltage conversion, electrical isolation, power management, and reliable electrical connections. Stantek manufactures custom assemblies according to the requirements of the equipment and application.
- Power Distribution Equipment: Transformer assemblies are used in distribution panels, substations, and control cabinets to step voltage up or down and maintain stable electrical output for connected systems.
- Industrial Machinery and Automation Systems: Assemblies support manufacturing equipment, motor drives, and control systems by supplying the correct voltage levels and electrical isolation required for sensitive components.
- Renewable Energy and Power Conversion Systems: Transformer assemblies support wind, solar, and energy storage systems for grid connection, inverter operation, and voltage regulation during power transfer.
- Telecommunications and Electronic Systems: Assemblies are used in communication hardware, signal equipment, and control electronics for electrical isolation, noise reduction, and reliable low-voltage power supply.
- Transportation and Vehicle Electronics: Transformer assemblies support automotive, rail, and specialty vehicle systems for battery charging, control circuits, and onboard power conversion.
Your Reliable Partner for Transformer Assemblies
When performance, reliability, and service matter, Stantek delivers. Our team combines engineering experience, controlled manufacturing, and responsive support to produce transformer assemblies that meet strict electrical and mechanical requirements. From development through production, we keep builds consistent, documentation accurate, and schedules on track. Contact Stantek today to review your transformer assembly specifications or request a quote.