By Lenz's law, an eddy current creates a magnetic field that opposes the change in the magnetic field that created it, and thus eddy currents react back on the source of the magnetic field. For example, a nearby conductive surface will exert a drag force on a moving magnet that opposes its motion, due to eddy currents induced in the surface by
The price for a small rare earth eddy current separator for a MRF can start at $35,000, while a larger separator for more severeduty applications can cost up to $160,000. The section on auto shredder applications was contributed by William Barrett, director of new product development for Dings Co. Magnetic Group, Milwaukee.
An Eddy current separator respond to the problem of separating nonferrous metals from the remainder of refuse and depend on the ability of metals to conduct electrical current. If the magnetic induction in a material changes with time, a voltage is generated in that material, and the induced voltage will produce a current, called an eddy current.
Flake Eddy Current Separator (ECS) Buntings clean, lowprofile Eddy Current Separator uses Magnetic Finite Element Design to optimize the magnetic field, and maximize the focal point and strength of the gauss intensity. This results in the maximum separation of the flake material.