The ZONESUN handheld electromagnetic induction sealing machine is designed for non-contact aluminum foil sealing of plastic and glass containers. With a compact all-in-one design, it features a pure copper coil for high efficiency, micro-computer control, and power memory function. Ideal for sealing bottles in food, cosmetics, pharmaceuticals, and chemical industries, it delivers fast, reliable seals using electromagnetic induction heating—no preheating required.