Micro Welders

AMADA’s micro welders support parts manufacturing in Japan and around the world.

Photo: Micro welders

Our Micro Welding Division offers products broadly divided into two types of micro welding: laser welding and fine spot welding. Laser welding is a welding method that utilizes the heat generated by focusing an artificially produced laser beam. Fine spot welding, also known as resistance welding, uses resistance heat generated by passing a current through the workpiece. These are key technologies supporting an extremely wide range of manufacturing (parts production), including not only automotive parts such as engines, motors, inverters, and sensors, and electronic parts such as cameras, connectors, semiconductors, and integrated chips, but also batteries, communication parts, eyeglasses, jewelry, and more.

Where our micro welders are used

  • Photo: Electric vehicle
    e-Mobility

    Micro welders play an important role in the manufacturing process for a varied range of e-Mobility equipment, from core EV components such as motors, inverters, and batteries to engine parts, supporting a supply chain that vies successfully with fierce international competition.

  • Photo: Smartphone
    Mobile devices

    Micro welders are also used in the manufacturing process for parts, such as cameras, connectors, and vibration motors, used in the mobile devices that are indispensable to modern life. The special abilities of these machines are optimally demonstrated in the assembly of small and thin parts.

  • Photo: Medical equipment
    Medical devices

    Life-saving medical devices that are used inside the human body, specifically catheters and therapeutic devices, must be thin, small, and of course of high quality in terms of dimensional precision and strength. Micro welding machines support the manufacture of these devices also.

  • Photo: Watch
    Everyday articles

    Micro welders are used not only for industrial products, but also for everyday items we wear and touch, such as watches, necklaces, jewelry, eyeglasses, and fountain pens, thus supporting high-quality Japanese brands.

    Products made with our micro welders

    • Photo: Motor
      Motors

      The motor manufacturing process is an area where our micro welding machines have a particularly high profile. They are used in processes such as the welding of cores, hairpins, wires and terminals. In the manufacture of batteries, they are often used in a process called tab welding, where cells are connected to each other.

    • Photo: Wire harness
      Wire harnesses

      With the spread of e-mobility, which requires more and more electricity, demand for wire harnesses, the cables that carry electricity, is expanding. There is a type of micro-welder that uses heat and pressure to form the ends of wire harnesses using a technology called “compacting” that is the focus of much attention.

    • Photo: Electronic components
      Electronic parts

      Electronic components such as the cameras and connectors used in smartphones and other devices are characterized by their thinness and small size, with a plate thickness of only several tenths of a millimeter. Micro welders are used in the process of welding the four corners of press-formed plates when assembling them on a case and in the welding process to reinforce the strength of the caulked part.

    • Photo: Medical equipment
      Medical devices

      Micro welders are also used in the manufacturing process for medical equipment such as catheters (guidewires) and other therapeutic devices. By minimizing thermal damage such as burning and deformation, the welding process meets not only strength requirements but also dimensional requirements after welding.

      Micro welder lineup

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