This series of models adopts transistor control circuits, featuring low cost, simple operation and convenient use. It is mainly used for the sealing operation of induction film on the bottle mouths of non-metallic bottles such as plastic and glass with threaded bottle mouths. It is suitable for large and medium batch continuous sealing work. It is not suitable for use in harsh environments with heavy acidity or alkalinity, high humidity and a lot of dust (such as pesticides). Long-term use in beverage factories, etc. This series of models is only suitable for single-machine operation and is not appropriate for connection to an assembly line.