Casters generally have which kinds of classification

Casters generally include movable casters, fixed casters and movable casters with brakes. Activity casters are also what we call universal wheel, its structure allows 360 degree rotation; fixed casters are also called directional casters, it does not have a rotating structure, can not be rotated. Usually two kinds of casters are generally used in conjunction with, for example, the structure of the cart is the front two directional wheels, the back near the push handrail is two universal wheels. Casters have a variety of materials casters, such as pp casters, PVC casters, PU casters, cast iron casters, nylon casters, TPR casters, iron core nylon casters, iron core PU casters and so on.