The MADG-D20 ultrasonic metal spot welder is designed for various ultrasonic metal welding applications. It is commonly used in industries such as electronics assembly, automotive manufacturing, and medical device production for joining thin metal sheets or wires, such as battery tabs, cable terminations, motors and coils, electrical connections, heat sinks, as well as welding of copper, aluminum, brass, gold, and silver. It offers the advantages of fast welding speed, precise control, low distortion, and no need for consumables like filler materials or flux.