This machine is widely used for sealing, welding, riveting, spot welding of thermoplastic parts such as electronic products, plastic products, stationery & toy, video & audio products, automobile & motorcar fittings , meters , household appliance , socket and plastic pipe as well as inlaying between metal and plastic products . This welder can transfer electric energy into ultrasonic energy by the ultrasonic transducer inside it and pass them to plastic work piece through welding noild and make its interface quake and scrape violently and produce heat of fusion to achieve the welding effects. The ultrasonic welded plastic workpiece has the characteristic of good quality , sealing and high-strength welding seam. By changing its welding mold , different area and shape workpiece can be welded. Wooden package.