Profile: The Colson Caster Group is a manufacturer of light-duty to heavy-duty castors. We design and manufacture a wide portfolio of castors and wheels for a diverse range of markets including medical, automotive and other general industrial applications. Our castors can be used in applications like heavy duty, light duty, medical, medium duty and special products. Our SL series castors are heavy duty double ball bearing swivel castors. We offer a number of accessories to support our castors and wheels.