LPHY caster wheels manufacturer specialized in customized office chair caster wheels for more than 25 years


4 characteristics of purchasing polyurethane casters


Author: LPHY –Professional casters manufacturer,

What are Polyurethane Casters? What are the characteristics of PU polyurethane casters?

Polyurethanes are often referred to as excellent adhesives, and spring glues are known as polyurethane or isocyanate polymers. Polyurethane wheels are an elastomer between plastic and rubber. Its unique combination of properties is not available in ordinary plastics and rubbers.

1. What are the characteristics of PU casters?

Polyurethane elastomers have excellent properties, such as abrasion resistance, chemical resistance, high strength, high elasticity, low pressure resistance, abrasion resistance, impact resistance, tear resistance, radiation resistance, high load-bearing, damping and buffering and other excellent properties. PU wheels have a relatively wide hardness rating of A10 to 100.

In addition, the PU grinding wheel has excellent shock absorption performance, can absorb the buffer pad, can resist the impact better than the metal spring, and will not damage the mold.

These properties of PU wheels are ideal for caster materials.

2. Processing method of PU casters

PU caster elastomers can be molded, mixed and vulcanized (MPU) the same as ordinary rubber; PU wheels can also be made of liquid rubber, cast or sprayed, sealed and centrifugal (CPU); PU casters can be made of granular materials, and Ordinary plastic, with injection molding, extrusion, calendering, blow molding and other processes (referring to CPU). Molded or injection molded parts can also be machined to a certain hardness for cutting, grinding and drilling.

The versatility of processing makes the applicability of polyurethane elastomers very common and the range of applications continues to expand.

3. Detailed application material of polyurethane caster material

Furniture caster custom polyurethane is not only a very good caster, soft foam polyurethane upholstery material, such as high seats, sofas, mattresses, etc., polyurethane soft foam is a very gorgeous cushion material, the cushion material is also a large application category of soft The foam, its warmth is very nice.

4. The use of PU casters

PU casters are used in refrigeration and refrigeration equipment such as refrigerators, freezers, refrigerators and cold rooms.

Polyurethane foam is the most commonly used thermal insulation material in refrigeration equipment and is widely used.


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