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What is the principle of the Shidai Jingang air brake cut-off?

1 Answers

ORuby

07/28/25 5:16pm

The principle of the Shidai Jingang air brake cut-off is the same as that of a regular air brake. Differences between the air brake cut-off and the regular parking brake: There is an essential difference in the parking brake mechanism. Conventional air brakes use a central disc brake system, which is manually operated, whereas the air brake cut-off employs an energy-storing spring air brake system, which is power-operated. Their energy supply devices are entirely different. Differences in usage between the air brake cut-off and the regular brake: The parking brake of a conventional air brake can only be used when the vehicle is stationary because its braking torque acts on the drive shaft. If used while the vehicle is in motion, it can easily cause severe overloading of the drive shaft and rear axle. Additionally, locking the differential housing may result in opposite rotational directions of the left and right wheels, leading to braking deviation or even a spin during braking. However, the energy-storing spring brake is different. On the contrary, because the travel distance of the energy-storing spring parking brake is greater than that of the service brake, it can be used for emergency braking when the service braking force is insufficient. Therefore, the energy-storing spring brake can serve not only as a parking brake but also as an emergency brake. Compared to conventional air brakes, the air brake cut-off system offers superior stability and safety in braking.

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