This series of models are controlled by transistor circuits, featuring simple operation and easy mobility. It is mainly applicable to non-continuous medium and small batch sealing operations, and is particularly suitable for sealing objects that are not easy to move. It is not suitable for long-term use in harsh environments with heavy acidity or alkalinity, high humidity and a lot of dust. This machine belongs to the horizontal induction type and is mainly used for sealing the caps of ordinary plastic bottles with handles (such as oil bottles) within the above-mentioned diameter range.