Power Supplies

AMADA WELD TECH’s resistance welding power supplies are intended for use as either benchtop resistance welders or for integration into automated systems.

What Resistance Welding Power Supplies Do

Resistance welding power supplies regulate the electrical output used during the weld cycle enabling manufacturers to produce consistent, repeatable welds for a variety of joint types and materials.

How Resistance Welding Power Supplies Work

Resistance welding power supplies take and transform line voltage into low-voltage, high-amperage output suitable for resistance welding. Current flows through the workpieces which are held between electrodes. Where electrical resistance is highest — typically at the contact interface — heat is generated, allowing the materials to melt, fuse and resolidify under applied force.

Digital controls in modern power supplies provide precise control over weld schedules, enabling tailored energy delivery and improved process stability.

Types of Resistance Welding Power Supplies

AMADA WELD TECH offers a range of resistance welding power supplies, including:

• High Frequency Inverter Welders — digitally controlled supplies with efficient power conversion and fast response for dynamic welding control
• Mid-Frequency Inverter Welders — versatile solutions for general-purpose production welding
• Linear DC Welders — stable DC output for consistent weld energy delivery across cycles
• AC and AC Inverter Welders — AC welding power sources. enhanced with digital control for precision welding

Each power supply type supports specific production needs in terms of speed, current regulation, and integration with weld controllers.

Typical Applications

Resistance welding power supplies are used where repeatable and controlled weld energy is required, including:

• Medical device manufacturing
• Automotive assembly and electrical contacts
• Battery tab and interconnect welding
• Precision component joining
• Sensor and relay terminal manufacturing
• General resistance welding production environments

Integrating Weld Heads

Resistance Welding Power supplies are designed to work with:

• Weld heads – to deliver energy to parts
• Weld monitors and checkers – to help ensure process stability and quality
• Automation and motion systems – depending on customer needs

Proper integration ensures coordinated control over electrical input, mechanical force, and time — key elements in achieving consistent welding results.