magnetic roller minimum size is limited?
recommended by the manufacturer of magnetic roller smallest and safest size: circumference of roller width of not less than machines. But if for whatever reasons must use smaller size, it is recommended to comply with the 4:1 rule: roll diameter of not less than the machine width of 1 / 4. Although manufacturers can produce smaller than 4:1 roller, a smooth and uniform to die to avoid the beating and even bending die, follow the above rules will be possible to extend the service life of magnetic roller.
