Handheld Electromagnetic Induction Sealer Manufacturer, Wholesale Price, Suppliers [Wenzhou Kaisha Machinery Co., Ltd.] Handheld Electromagnetic Induction Sealer Large Diameter Honey and Chili Sauce Plastic Bottle Caps Glass Water Bottles Medicine Bottles Egg Yolk Pastry Oil Drum Urea Drum Aluminum Foil Foil Gaskets Sealing Machine Principle: Utilizes the eddy current magnetic field generated when electromagnetic energy contacts plastic materials, causing the metal to heat up instantaneously for practical magnetic thermal conversion purposes. The Electromagnetic Induction Sealer, based on this principle, seals bottle caps with aluminum foil inserts (sealing materials with attached foil) by induction. As the bottled container passes through the magnetic induction area of the sealer, the aluminum foil insert inside the cap is recognized by the induction. The foil on the insert becomes instantly heated, melting the adhesive layer on the insert and fusing with the bottle mouth, achieving a beautiful and durable seal.