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62/63" O.D x 17/27" I.D x 12/61" thick N42 Neodymium Magnet - 20.72lbs Pull

High-performance Neodymium (N42) ring magnet with north and south poles on opposing circular faces.

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  • $6.97
Product Code: F2516
Shape: Disc
Magnetic Face: 25mm dia
Thickness: 5mm
Grade: N42
Plating: Ni-Cu-Ni ( Nickel )
Material: NdFeB
Performance (Gauss): 4000
Vertical Pull (Kg): 9.4
Slide Resistance (Kg): 1.8
Max Temp (degrees C): 80
Fixing: Araldite/Loctite
  • 62/63'' outer diameter x 17/27'' inner diameter x 12/61'' thick
  • Each magnet's north and south pole are on opposite circular faces
  • Each magnet can support a steel weight of up to 20.72lbs vertically from the magnetic face when in flush contact with a mild steel surface
  • Excellent resistance to demagnetisation
  • Coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth finish

These versatile high-performance ring magnets, with north and south poles on opposing circular faces, have many uses. They are used in many everyday appliances such as vacuum cleaners plus motors, generators, rotor shafts and more. They can even be used to demonstrate intriguing 'eddy currents' using a 13/22'' copper pipe. Simply slide the ring over the pipe and let it slide down its length and watch it slowly descend as the eddy currents produced create a damping effect. Compare this with our unmagnetised rings of the same dimensions by repeating and watch as the unmagnetised ring slides down the pipe in an instant. A great way to bring magnets to life in the classroom.

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