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QDE-3.5N safe spring applied air release disc brake
QDE-3.5N safe spring applied air release disc brake is one model of QDE-N spring engaged brake. It is used to grip steel disc thickness is 40mm.

For this QDE-N safe spring applied air release disc brake, it has two models: QDE-3.5N and QDE-4N. They are both controlled by springs.

QDE-3.5N and QDE-4N safe spring applied air release brakes are high torque safe brake. When braking disc diameter reached to 1370mm, QDE-3.5N braking force is more than 16000N.m, and QDE-4N braking force is nearly reached to 20000N.m.
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