Understanding Industrial Caster Capacity
When you calculate the required capacity of your casters, there are two areas you will need to consider: Safety and rollability.
Safety: When installing casters, safety should always be of utmost importance. An overloaded caster can fail and cause the load to become unstable. This can result in damage to the load if it overturns and injury to people. Make sure you do not load your casters beyond their rated capacity.
Roll-ability: When you begin approaching the maximum load capacity of a caster, the ease of rolling your load may drastically reduce. The wheel compound you choose will affect the roll-ability. If your are using a wheel with a harder compound, the roll-ability will probably not reduce much. However if you are using a softer compound, as you reach the load capacity of your cart or piece of equipment, it will become very hard to maneuver.
To calculate caster capacity, take the total weight of your load divided by the number of casters you will use to carry the load. It’s that simple! Make sure you include the weight of any cart you are using.
Example – A cart with 4 casters:
Load weight = 1,500 lbs
Cart weight = 100 lbs
Total weight = 1,600 lbs
1,600 lbs / 4 casters = 400 lbs per caster