The iSTW series is an ultrasonic servo torsional welder developed by DONGHO. 100% servo control, the technology of torsion is used to rotate the welded parts to complete the ring welding, supporting multiple welding modes and triggering methods. Torsion welding technology requires only a small amount of high heat energy to be twisted and gently directed into the weld area to achieve the best welding results and to protect the sensitive part surface well, even in tight spaces , ensure good accessibility without film effect.

The iSTW series ultrasonic torsional welder can be used for welding round and polygonal parts of various nanomaterials, welding and cutting of thermoplastic materials and sealing rings, such as sensors and sensitive parts, flakes, electronic equipment, etc., as well as ring welding of round metal geometries, textiles, fleece and metal flakes. Can be applied in the electronics, medical , automotive and other industries.