Classified by Caster Wheels material:
According to the material, it is mainly divided into hot -plastic polyurethane, polypropylene (PP), nylon (PA), thermoplastic rubber, and polyvinyl chloride. The characteristics of thermoplastic polyurethane: Circable thermoplastic polyurethane polypropylene closettes, which requires both load and focusing on ground protection. It runs low noise, abrasion resistance, impact resistance, spinning oil, mineral oil and some acids Normal operation speed is 4km/h. Features of polypropylene (PP): The fetal heart and tires of polypropylene cluster can be circulated. It is applicable to light, heavy, and easy to run. It is very easy to manually save. Under static loading, it is resistant to deformation. The normal operation speed of impact is 4km/h. Nylon (PA) Features: High -quality nylon fetal heart and fetus, with small light mechanical resistance, flexible rotation, manual and mechanical use saving effort, use of work in humid environment, oil -proof, crude oil, salt, some acidic substances,, acidic substances, acidic substances, acidic substances. Environmental materials, normal operation speeds of 4km/h. The characteristics of thermoplastic rubber characteristics: excellent resistance to pull-up resistance, the highest resistance to strong resistance. Long-term temperature resistance exceeds 70 ° C and low-temperature environmental performance. Under the good environmental performance of good environment, it can still maintain good bending, good electrical insulation, non-slip, resistance to resistance, resistance to resistance Grattan, weather resistance and general chemicals. Polyvinyl chloride characteristics: flame retardant is therefore widely used in fire prevention applications, and it is not easy to be corroded by acid and alkali. Have good tensile, bending, pressure resistance, and impact resistance. 
