Industrial carts often carry heavy loads and may be in constant use during the workday. It is important to choose casters for your carts that will not collapse and do not require excessive force to move. When making the best choice for your cart, consider the caster type, weight capacity, material, and size.
Plate casters, as opposed to stem casters, work best for many heavy-duty carts because the weight is distributed over the plate. When ordering heavy duty plate casters, you will need to choose between swivel and rigid types. Swivel casters turn more easily in tight spaces, but do not travel well over long distances. Rigid casters travel in straight lines, but will not turn. Many cart designs use a combination of caster types in order to obtain flexibility in steering. Consider caster wheel locks to help keep the cart in place when not in transit. This will help prevent injuries from sudden cart shift.
Weight Capacity Limits
Determine the maximum load that you expect the cart to carry, and make sure that the dynamic weight capacity of the all of the casters combined will support that weight. In your calculations, add in a safety factor. Proper engineering for loads prevents collapses of carts that injure workers and damage equipment. The exact manner of calculating the weight capacity needed for each individual caster will vary depending on whether you use standard or leveling casters. Tilting carts also require a different calculation procedure.
Materials for Casters
Caster materials need to be matched with the type of floor in your shop. Hard casters on hard floors may cause carts to careen out of control. In general, hard casters work well on carpet, and softer materials help to provide friction on harder floors. Caster materials vary in how much they tend to mark your floors. Some materials are designed to resist fluids and chemicals present in some industrial shops. In a hospital setting, the bacterial resistance of the material would be important.
Caster Wheel Diameters
Choose caster wheel sizes that will support your cart and help it roll easily over the floor. Larger casters tend to be easier to push and pull, and they maneuver well over imperfections on the floor surface. At the same time, make sure that the entire unit is stable.
For industrial settings, casters for carts need to be chosen carefully to ensure easy rolling and employee safety. The caster type, weight capacity, material, and size will affect the performance of your design.