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What are the test requirements for industrial caster manufacturers casters before they are launched

2020-08-11 11:02:09

Before casters enter the market, they must be tested accordingly to meet the standards of use. So what are the common caster test methods of industrial caster manufacturers, and what are the requirements in the test?

Any item may have impact and vibration due to transportation, use, storage and other conditions, but the product will be defective or even unusable for a certain period of time. Furniture is often susceptible to impact due to its large size and weight. The bottom determines whether the furniture is placed or not. Smooth casters should have good impact resistance.

Casters should always run stably on the ground, but that is almost a purely theoretical state. On uneven surfaces, or when crossing thresholds, tracks, and pits, the casters will leave the ground briefly. So when they are suddenly overloaded or when three of the four casters touch the ground, they must carry the load of the entire furniture. The test process of the static load of the caster in the European standard is that the caster is fixed on a horizontal and smooth steel test platform with screws, a force of 800N is applied along the center of gravity of the caster to maintain 24H, after the force is removed for 24 hours, the condition of the caster is checked. The deformation of the caster does not exceed 3% of the diameter of the wheel, and the rolling, pivoting or braking function of the caster after the experiment is completed is qualified.


When testing this performance, the caster should be kept dry and clean. Place the caster on a metal plate insulated from the ground, keep the wheel edge in contact with the metal plate, and load 5% to 10% of its nominal load on the caster. Use an insulation resistance tester (the nominal open circuit voltage is 500V, the measured resistance fluctuates within 10% and the loss on the product does not exceed 3W) to measure the resistance between the caster and the metal plate. For conductive casters, the resistance value should not be greater than 104 ohms, while the resistance of antistatic casters should be between 105 ohms and 107 ohms.

The caster test is carried out according to the European standard EN12527 and the national standard GB/T-14688, such as "dynamic load, long-distance walking test, static load test, abrasion test, obstacle test", etc.



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