FRIDGE MAGNET  DEFINITION

Refrigerator magnets more commonly known as fridge magnets are little magnetic ornaments used to decorate a fridge.  They can be used on any metal surfaces such as door jambs or school blackboard or even office white boards.   A fridge magnet can take many forms such as shopping lists, calendars or even poetry magnets.  They serve a decorative function and come in a wide range of sizes. A very popular form of fridge magnets are souvenir magnets form destinations around the world.

MAGNETIC SHEET MANUFACTURE PROCESS

Magnetic sheet used for Fridge Magnets

Felixible magnetic sheets are made of ferromagnetic compounds such as ferric oxide which is mixed with a plastic binder.  This material is extruded then passed over extremely power cylindrical permanent magnets.   The permanent magnet impresses the sheet magnet with magnetic poles in a line format.  These poles are normally 5mm – 8mm apart but it could vary from one manufacturer to another.
Fridge magnets do not have distinct N and S poles, both N and S poles are one one side of the sheet, normally the side that will adhere to the metal surface.  Try placing two fridge magnets against each other then slide them, you will instantly feel them attract and repel as it slides.  This effect is known as a Halbach array, note the diagram below.

Fridge magnets array diagram

Halbach Array

FRIDGE MAGNET MANUFACTURE PROCESS

 

Fridge magnets manufactured using digital System

We have different processes to manufacture fridge magnets.  When you require a small quantity we use a digital print and cut system. This system is suitable for short runs of up to 500 units.   The downside of this process is that the magnet sheeting is very expensive, therefore the end product can be a bit costly.  This process does not require that die’s be made up for die cutting, so the cost of the die is not a factor which tends to balance the price out in the end.

Fridge magnets manufactured using die cut or cropper system

When the quantities required are large we use a die cutting system to produce the magnets.  An initial die must be made up in order to cut fancy shapes but this is easily offset when the quantities exceed 1000 pieces.