It is often today one will find Rare Earth Magnets used in the production of retail packaging. This can be usually paper box construction that’s several movable flaps. Often affecting top end kids book collections, DVD collections, or things like Craft type kits found packaged in paperboard. It’s considered an upgraded to your hook and loop type fasteners (i.e. Velcro) found in older style boxes.

There are 2 configurations which should be considered.

1) Using two rare earth magnets

2) Using one rare earth magnet, the other bit of ferrous metal

Selecting which choice to choose depends on a several factors:

Gap – and what will function as the total distance between the magnet/metal pair
Feel – how much force do you want the conclusion user to apply when opening

A result of the somewhat fragile nature of rare earth magnets, it is almost always recommended that in assembly on the box, which the two parts (two magnets, magnet/metal) quit in a position to can be found in direct hitting the ground with the other person. This may minimize any chance the magnet could break on account of shock if your box is closed.

Two Magnets – This configuration is better utilized any time a stronger bond is essential, and when the content is thick, creating a larger gap together. Magnets could be inserted into paper board that is die-cut, or including be surface mounted and laminated over (or a decorative design, sticker or pad of some sort or other may very well be placed in the magnet). Alert should be made during assembly to guarantee the polarity is in an attracting configuration. Some manufactures offer rare earth magnets which are marked about the North seeking pole to help in assembly. If magnets are improperly mounted in an opposing configuration, they’ll repel and the box will never close. Magnets prefer to attract together in a really exact manner, and so the two magnets will need to mate together close for your ideal bond that occur.

Magnet & Steel – This configuration is best utilized whenever a slightly weaker bond is desired, the material being employed isn’t as heavy, or when total price may be Bushing Magnets limiting factor. Using steel as the mating piece to the magnet cuts the overall cost substantially as steel is quite a bit less than the rare earth magnets. Steel discs, washers and also other similar steel can be used the mating part to the rare earth magnet. Another factor that makes the magnet-steel combination attractive would be the positioning of magnet. Alignment on the steel piece seriously isn’t critical because the magnet will attract well for the steel if it’s over-sized or not centered. Lastly there aren’t any concerns with polarity aided by the magnet-metal configuration, as the magnet attracts for the steel equally on either the North or South seeking poles. Steel pieces are mounted inside the similar ways because the magnets and box may be die-cut along with the metal inserted, it can be taped in, glued in, and it could be laminated over to the totally invisible bond.

Equally for magnet-magnet and magnet-steel configurations the two main factors which use a stronger solution on the bond.

1) The diameter on the magnet. Larger diameter (larger surface areas) from the magnets will yield stronger the bonds.
2) The thickness with the magnet. Thinner magnets do not need as often holding strength as thicker magnets.

Just experiment. Try various configurations for your box construction. It could possibly are more effective with one larger pair, or two smaller pairs. If the bond is just too strong, slow up the magnets diameter, number of magnet pairs, or thickness with the magnets or steel.

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