Heavy duty castor material compared to the other castor also has its particularity, in general, heavy duty castor wheels will adopt hardness better hard tread single wheel, nylon wheel, for example, cast iron wheel, forged steel wheel, etc, this kind of caster is the ideal choice, which is based on actual demand, because of its higher bearing capacity requirements, so you need to have a higher hardness material come equipped with, which is especially suitable for forging steel wheel and polyurethane tire track, form a complete set of castor wheels. Heavy duty castor wheel diameter is larger, the wheel diameter, the greater the push more effort, and better able to protect the ground, because the stress area is larger, and larger casters in slow-moving situation is not easy to hot deformation, but also will be more durable, is still under conditions allowing choice diameter is larger heavy-duty casters is better as soon as possible. But if have certain requirements for mobile speed, under the normal temperature environment, in the case of ground platforms not more than five kilometers an hour, also considering the ground material, obstacles, the external conditions, such as iron filings, if used in a special environment, including low temperature, have certain chemical corrosive environment and so on, should choose the special material of castor is better. Heavy duty caster wheel rotating plate is more special, it is usually adopted double first ball track, after stamping forming, heat treatment, etc. , but for track, heavy duty casters, at this time will use force bigger plane ball bearing or needle roller bearing, etc. The particularity of heavy duty castor material, if you have special environmental conditions, so considering the castor material will be destroyed when fully consider the environmental requirements, such as if under the environment of high temperature, suggest to buy heavy-duty casters friend can give preference to pu castor wheel this material, under the environment of high temperature will not affect the operation of the caster, and polyurethane wheel caster is especially suited for track, castor wheels. There is a detail question is to consider the particularity of heavy duty castor rotate pull, because of the weight of heavy duty castor itself, often used the double ball track, can rise the stamping forming, the effect of heat treatment, but for large bearing range of casters, generally doesn't effect the rotation of the plate, to use force more flat ball bearings. Heavy-duty casters in use is often given priority to with flat plate assembly, general heavy-duty casters in 8 mm steel plate thickness, 10 mm, 16 mm and more than 20 mm. Heavy duty castor industry and other industry more and more widely, therefore, the quality of products is also very important, suggest you can give priority to the products of famous heavy duty castor, because they provide products tend to have more quality assurance, and a lot of castor brand product technology also is very advantage.