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Constant force springs

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Constant force springs are designed to provide constant pull force, the typical applications like: wire collectors、vacuum cleaners、dog leashes、shelves 、vending machines、roller shutters, etc.


Constant force springs are made of flat steel strip, which have been shaped and pre-tensioned into tightly wound rolls with various choices of wound numbers, widths, thicknesses, outside diameters and loads. The constant force springs are used in a linear movement and produces almost constant force throughout its deflection.


Constant force springs can be mounted in a number of ways and extended partly or completely. There is practically no limit on extension speed and acceleration.。


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