1. Thermoplastic elastomer TPR composite materials are easy to process and mold, can be directly injection molded, and are wear-resistant, elastic, shock-absorbing, and low-noise. It has become an important raw material for industrial casters.
2. Usually, shelf casters and trolley casters are made of hard plastics (such as PP, PA) and soft plastics (such as TPR, TPE, PU, EVA, TPU). Casters made of hard plastic as the skeleton material play the roles of load-bearing, softness, anti-skid, shock absorption and noise reduction.
3. At present, Ningbo Shangxin TPR caster manufacturers generally use hard plastic copolymer polypropylene. For some uses, nylon PA, soft plastic TPE, and TPR account for a large proportion of market demand. This type of molded caster usually consists of two steps. The first step is to injection mold the injection molded parts or hard PP PA; the second step is to hard mold the molded parts in another set of molds and fix the position, then take the TPR soft plastic rod and coat the hard plastic sheet The location to be painted.
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