This series of machine of transistor circuit control, the characteristics of low cost, simple operation, easy to use. Mainly used for bottle with threaded plastics, glass bottle of bottle etc. Nonmetal induction membrane sealing operation. Applicable to large and medium sealing job. Batch continuity, Not suitable for acid. Alkalinity. High humidity and dust more harsh environments (such as pesticides. SAN, etc.) for a long time. These series machines are suitable for single homework, do not use in line connected.