Author:www.hsinbon.com China Hsinbon Caster Manufacturing Co., Ltd
Place the caster on a flat and stable testing platform. Mount a test fixture on the caster according to its intended application, such as a plate or a stem - mounted adapter. Use a calibrated loading device, like a hydraulic press or a weight - stack system, to apply the load.
Gradually increase the load on the caster in accordance with the specified load - increment steps. For example, start with 10% of the rated load and increase it by 10% increments at each step. Hold each load level for a certain period, typically 1 - 2 minutes, to allow the caster components to adjust. Observe the caster during the loading process for any signs of deformation, such as bent axles, flattened wheels, or damaged mounting brackets.
The caster passes the load - bearing capacity test if it can withstand the rated load without any permanent deformation or failure of its components. If any part of the caster shows signs of damage or excessive deformation, the caster fails the test.
Mount the caster on a test cart or a simulated moving device. The test track should be representative of the typical working surfaces, such as smooth concrete for indoor use or rough asphalt for outdoor applications. Use a motorized drive system to move the test cart at a constant speed.
Run the caster on the test track for a specified number of cycles or distance. For example, for a caster intended for light - duty indoor use, the test may be set for 10,000 cycles or 5 kilometers. During the test, periodically check the caster for wear and tear. Measure the wheel diameter, tread depth, and the condition of the swivel joint and axles.
The caster passes the durability test if, after the specified number of cycles or distance, the wear of its components is within the acceptable limits. For example, the wheel tread should not be worn down by more than 20% of its original depth, and the swivel joint should still operate smoothly without excessive play.
Mount the caster on a test vehicle with a known weight. Place the vehicle on a slope with a specified angle, usually around 5 - 10 degrees. Ensure that the surface of the slope has a consistent coefficient of friction.
Engage the caster's brake and release the vehicle. Observe whether the brake can effectively hold the vehicle in place without any movement. Conduct multiple tests, both with the vehicle facing uphill and downhill.
The caster passes the brake performance test if the brake can hold the vehicle stationary on the slope for at least 5 minutes without any signs of slippage. If the vehicle moves even slightly, the caster fails the test.
Mount the caster on a fixed base. Use a torque - measuring device to attach to the caster's swivel part.
Apply a gradually increasing torque to the swivel part and measure the torque required to start the swivel movement. Then, rotate the caster through a full 360 - degree turn and measure the torque variation during the rotation.
The caster passes the swivel function test if the starting torque and the torque variation during rotation are within the specified limits. These limits are usually determined based on the caster's design and intended application.
By adhering to these comprehensive testing standards, manufacturers can ensure that their caster products meet the quality and safety requirements in various applications.
Created At: 2025-03-05 12:58:03
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