Low Noise 750kg 125mm Heavy Duty Swivel Casters Wheels Wear Resistance

fixed rigid flange nylon caster wheels outdoor Industrial casters KT-PH40-125

Advantages of polyurethane castors

1, Why do casters have polyurethane wheels? Polyurethane is commonly known as Youli glue

and spring glue. Its full name is: polyurethane or isocyanate polymer. Cast polyurethane is a kind

of polyurethane elastomer injected by chemical reaction, which is based on polyester polyol,

diisocyanate and ethylene glycol. Protect the floor, absorb vibration, no trace, no dyeing, very

wear-resistant, elastic and durable. It is an elastomer between plastic and rubber. Its excellent

comprehensive properties are not possessed by ordinary plastics and rubber.

1. Characteristics of polyurethane wheel the elastomer of polyurethane wheel has good properties

such as abrasion resistance, chemical corrosion resistance, high strength, high elasticity, low

pressure resistance, strong shock absorption, tear resistance, radiation resistance, high load-bearing

and shock absorption. Polyurethane wheels also have a wide hardness range from shore a10-100.

At present, there are more than Shao's A100 and above products on the market. In addition, the

polyurethane wheel has excellent sound absorption characteristics, and the wheel does not produce

noise during movement, which can achieve the mute effect. These characteristics of Pu wheels are

very suitable for caster materials.

2. Polyurethane wheels can be processed by a variety of methods

(1) The polyurethane wheel can be molded by injection, extrusion, calendering, blow molding and

other processes like ordinary plastics (referring to CPU);

(2) Polyurethane wheel elastomer can also be molded by plastic refining, mixing and vulcanization

process (referring to MPU) like general rubber;

(3) The polyurethane wheel can also be made into liquid rubber, cast, molded or sprayed, potted

and centrifuged (referring to CPU).What are the advantages of polyurethane plastics?

Polyurethane plastic is widely used in castors. It is a thermoplastic polyurethane elastomer with light

weight, impact resistance, wear resistance and corrosion resistance.

Why choose this material? Because he has some unique characteristics:

1. Good wear resistance, 5-8 times higher than that of nitrile rubber;

2. Good bending strength and elasticity;

3. High tensile strength and fracture elongation

4. Strong tear resistance;

5. Moderate temperature resistance (- 50 ℃ ~ 85 ℃) up to 120 ℃;

6. Good oil resistance, water resistance, mildew resistance and solvent resistance;

7. Good aging resistance

8. Large adjustable range of hardness (Shore 15A ~ 98a);

9. Low compression set rate;

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