China Neodymium And Ferrite Magnets Manufacturer & Supplier 
I do not know whether you find, now a lot of packaging sealing using permanent magnets, the home of the flat-panel protective cover is also, will be used for packaging sealing magnets what are the advantages? Today take you to inventory.
Most of the magnets used for package sealing are round and rectangular shaped, the picture below shows 25x1mm thin round neodymium magnets.
Advantage 1: Easy switch packaging
Magnet sealing with automatic alignment and adsorption function makes switch packaging easier, especially for boxed gifts, such as cosmetic boxes, collection gift boxes, birthday gift boxes and so on.
Advantage 2: Good sealing performance
Strong magnetism can close the package tightly, blocking air, moisture, dust, etc., prolonging the shelf life of foodstuffs (e.g., coffee, dry goods) or sensitive products (e.g., electronic components, pharmaceuticals).
Advantage 3: Enhance the grade of packaging
Magnetic sealing is often used in high-end gift boxes, with exquisite appearance and smooth opening and closing, which can enhance the texture of the overall packaging and user experience.
Advantage 4: No need to break the packaging
Unlike tape or disposable stickers, magnet seals do not damage the package itself and help reuse and recycle the package in an environmentally friendly way.
Advantage 5: Strong customizability
The magnet's shape, suction force, and mounting method (embedded, pasted, screw-fixed, etc.) can be flexibly customized according to the packaging structure to adapt to various design needs.
Advantage 6: Safe and environmental protection
When using high quality magnets (e.g. NdFeB + epoxy or nickel-plated treatment), the magnet seal is non-toxic, odorless, corrosion-resistant, and meets the requirements of food-grade or environmentally friendly packaging.
Advantage 7: Improve brand memory
The unique “magnetic opening and closing” experience can enhance the user's impression of the brand packaging and bring stronger brand recognition.
Relevant Application Cases；
Food field: freshness sealing of coffee bean bags and tea canisters.
Consumer electronics: Elegant opening and closing design for cell phone and headphone boxes.
Luxury goods: magnetic flap for jewelry and watch gift boxes.
Medical packaging: first aid kits that require frequent access and sealing.
Relevant application product types;
Cheap single sided neodymium magnet disc for packing box 12x2mm
1 inch thin disc magnets N52 with 3M self adhesive D25x0.8mm