If you drive a vehicle or have good knowledge about vehicles and wheels, then you know that different vehicles need different types of wheel. While small carriage vehicle such as bike, car and tempo can run with simple wheels the vehicles that carry a lot of weigh on their back need heavy duty wheels. These vehicles can be truck, crane carrying vehicle, long vehicle carrying vehicle and even airplanes. These wheels are specially made for carrying heavy load and they are not damaged due to the load kept on them.
Heavy duty casters, heavy duty wheels and machine tools are manufactured by only a few companies in the market. They generally deal with industries and big businesses which require these wheels. The companies deal with some of the heavy industries and vehicle industries that produce these kinds of wheels. But they also sale the heavy duty caster wheels to the individual buyers but the cost may be a bit high in such cases. It is thus important to find a dealer that provides discount on these wheels and the discount needs to be heavy too. But at the same time you should not ever compromise with the quality and performance of the wheels and casters.
The material and technology used in heavy duty caster wheels is different from that of a general wheel that is used in cars and bikes. The material needs to be such that any pressure would not damage its composition. At the same time the material needs to be strong enough to hold the weight on it. The technology would be also different and advanced in such cases. This is because the technology of fitting will be a determining the durability of the wheel.