Impact test of Hight temperature caster

Many items may have collision and vibration due to transportation, use, storage, etc., but the product is defective or even unusable for a certain period. Because of its large size and weight, it is often vulnerable to impact, and the bottom determines whether the item is placed smoothly. The Hight temperature caster should have good impact resistance. Next, let's take a look at the impact test of the Hight temperature caster.

Here is the content list:

• Impact test method

• Resistance performance test

• Static load test

• Rolling resistance and rotational resistance testing

• Rotational Resistance Test

Impact test method

Install the Hight temperature caster vertically on the ground test platform, so that the heavy object with a mass of 5KG (±2%) falls freely from the position with a height of 200mm and an allowable deviation of ±3mm to impact the edge of the caster. If it is for two rounds, both wheels should impact at the same time.

Resistance performance test

The Hight temperature caster should be kept dry and clean when testing this performance. Place the caster on a metal plate insulated from the ground, keep the wheel edge in contact with the metal plate, and load the caster with 5% to 10% of its nominal load. Use an insulation resistance value tester (nominal open-circuit voltage is 500V, the measured resistance value fluctuates within 10% and the loss on the product does not exceed 3W) to measure the resistance value between the Hight temperature caster and the metal plate. For conductive casters, the resistance value should be no greater than 104 ohms, while the resistance of antistatic casters should be between 105 ohms and 107 ohms.

Static load test

The Hight temperature caster should always run stably on the ground, however, that is almost a purely theoretical state. On uneven surfaces, or over thresholds, cracks, and potholes, the casters briefly leave the ground. So when they are suddenly overloaded or when 3 of the 4 casters touch the ground, they must carry the load of the entire.

The test process of the Hight temperature caster static load in the European standard is to fix the caster on a horizontal and smooth steel test platform with screws, apply a force of 800N along the direction of the center of gravity of the caster for 24H, and check the caster after 24 hours of skimming the force. After the experiment, the deformation of the caster measured does not exceed 3% of the diameter of the wheel, and the rolling of the caster after the experiment is completed, the rotation around the axis or the braking function is not damaged, it is qualified.

Rolling resistance and rotational resistance testing

When the caster moves or wants to control its direction of travel, the force must be transmitted to the Hight temperature caster through the object and overcome a certain resistance. The size of the resistance depends on: load, wheel diameter, wheel material, wheel surface shape, caster wheel rotating field conditions, etc.

For the test of rolling resistance, the standard is to install three Hight temperature casters on a fixed three-arm base. According to different test levels, a test load of 300/600/900N (including the mass of the base) is applied to the base, apply a horizontal traction force to make the casters on the test platform travel at a speed of 50mm/s (allowable deviation ±5%), and keep it for 10S. Due to the large friction force and acceleration at the beginning of the rolling of the caster, the horizontal traction force is measured after the test is carried out for 5S, and its size does not exceed 15% of the test load to be qualified.

Rotational Resistance Test

Install one or more Hight temperature casters on the linear or circular motion tester so that it is oriented at 90° to the direction of travel. According to different test levels, a test load of 100/200/300N is applied to each caster. Apply a horizontal traction force to make the casters on the test platform travel at a speed of 50mm/S (allowable deviation ±5%), and rotate within 2S. Record the horizontal traction force that makes the Hight temperature caster rotate, and its size does not exceed 20% of the test load to be qualified.

The above is about the shock test of the Hight temperature caster, if you are interested in Hight a temperature caster, Heavy-duty caster wheel, you can contact us, our website is http://www.senocaster.com/