Stem Type 72mm Retractable Leveling Casters 670kg Fatigue Resistance

               Characteristics of castor nylon material
Nylon (referred to as caster PA) refers to the plastic composed of polyamide resin prepared by

ring opening polymerization of lactam formed by polycondensation of binary amine and binary acid

or dehydration of amino acid. This kind of resin is different from PS, PE, PP, etc. caster PA does not

soften gradually with the increase of heating temperature, but softens in the temperature range near

the melting point, which is very narrow. Melting point: 215-225 ℃. Once the melting point temperature

is reached, flow occurs. There are many kinds of caster PA, but it is most commonly used with caster

PA6, caster PA66, caster PA610, caster PA11 and caster PA12. Nylon engineering plastics are bright,

horny, tough, white (or milky white) or yellowish crystalline resin on the surface. It is easy to be painted

into any other color. Among the mechanical properties of caster PA, for example, the tensile and

compressive strength changes with temperature and moisture absorption, so water is relatively the

plasticizer of caster Pa. after adding glass fiber, its tensile and compressive strength can be increased

to twice, and the temperature resistance will be improved accordingly. The wear resistance of caster

PA itself is very high, and it can be operated continuously without lubrication. If you want to get special

lubrication effect, Sulfide can be added to caster PA.

Main advantages of caster PA performance
1. Outstanding fatigue resistance, able to withstand repeated bending for many times and still maintain

the original mechanical strength.

2. High softening point and heat resistance.

3. Smooth surface, small friction coefficient and wear resistance.

4. It is particularly resistant to corrosion, alkali and most salt solutions, but it is not resistant to strong

acids and oxidants. It can resist the corrosion of gasoline, oil, fat, alcohol and so on, and has good

anti-aging ability.

5. Self extinguishing, non-toxic, odorless, good weather resistance, good antibacterial and mildew

resistance.

6. Excellent electrical performance, good electrical insulation and high volume resistance of caster Pa.

it can be used as power frequency insulation material in dry environment and still has good electrical

insulation in high humidity environment.

7. The parts are light, easy to dye and easy to form. Because of its low melting viscosity, it can flow

quickly. It is easy to fill the mold. After filling, the freezing point is high and can be shaped quickly.

Therefore, the molding cycle is short and the production efficiency is high.

8. High mechanical strength, good toughness, high tensile and compressive strength.

Heavy Duty Retractable Casters Parameter

Heavy Duty Retractable Casters Describe

Heavy Duty Retractable Casters Material

This wheel master have the advantage of making it easy to remote in a 360 degree are by putting and

in the ball bearing between upper plate and main body, also get a change of direction and move easy.

Heavy Duty Retractable Casters Size

Heavy Duty Retractable Casters Scope of application

Function.

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