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Product Details
QDF-N spring applied air release brake
QDF-N spring applied air release brake with air cylinder is another type of QDF brake, it is normally in braked status.

So it also has two models: QDF-2N and QDF-3N. Their max braking disc thickness both 12.7mm.

This QDF-N spring applied air release brake with air cylinder is controlled by springs. As usually, QDF-2N and QDF-3N are matched with 8 pieces of springs for braking.
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