Features: The ultrasonic bilateral synchronous welding machine is mainly aimed at the welding technology of the multi-layer pole pieces of the large-capacity power battery to improve the production efficiency. The welding of the positive and negative poles of the power battery can be carried out synchronously. Whether it is the winding process or the lamination process, the bilateral synchronous welding machine can be used. . High welding efficiency, low internal resistance, stability and strong consistency. The welding head can be customized according to the material and process of the customer's welding. The digital operation interface and PLC control are simple and easy to understand, the welding parameters are easy to adjust, and the power digital can be adjusted for welding of different layers. The machine head uses embedded high-quality cross guide rails to ensure stable movement. The welding head can be replaced, which is suitable for welding heads of various processes. It is easy to replace the welding bottom mold and workpiece. The piezoelectric ceramic transducer system imported from Germany is adopted, and the output is strong and stable. Special steel variable sub-rod, imported alloy steel welding head, durable, welding head tooth pattern adopts cold grinding technology, durable wear-resistant. The welding cycle is short, the welding effect is good, there is no false welding, the surface is smooth and wrinkled, the back is not pierced, the solder joints are full and clear, firm and reliable. The whole machine adopts multiple guarantees such as bias frequency, overload, high temperature, high impedance, overcurrent, overvoltage, and no welding material protection.