Channel magnets are rectangular in shape and consist of a steel shell with a ceramic magnet sunken into one face.
magnetism is confined to one face only, where it is concentrated to give the maximum holding force possible for the size of the magnet. The steel shell significantly increases the clamping force of the assembly making them excellent value for money. Channel magnets are supplied with a plain hole for convenient mounting located in the middle of the magnet or at either end depending on the size.
Channel magnets do not chip or crack with constant impacting onto a steel surface which is another large advantage. Channel magnets can be used in guides for letterpress printing and commercial sewing.