Neodymium Rare Earth Magnets
We offer 125+ sizes of N42 grade (13,200-13,500 gauss) neodymium rare earth magnets for science, engineering & industry. Most of them have a +/- 2% magnet to magnet variability making them ideal for the most sensitive relays, sensors & switches. In spite of this, we make every effort to offer these at affordable prices so even hobbyists & artists can use them.
Two items that make great accessories for neodymium magnets:
1) Non-ferrous titanium watchmaker forceps making handling Nd magnets easier.
2) The ultra sensitive Marl I Magnaprobe is better than any electronic detector for locating stray or weak magnetic fields.
Rare earth disc magnets are by far the most popular type of "round" magnets and include uses such as closures for product literature binders and art portfolios to bulletin board "thumbtacks". Our disc magnets range from 2.5 to 25mm in diameter (1/10 to 1") and 1mm to 20mm thick. Dimensions are specified as "diameter x thickness".
Rare earth rod or cylinder magnets are a subset of round magnets that are differentiated in having their height greater than or equal to their diameter and are specified as "diameter x height". The taller versions of this style are very handy for use as stud finders and nail locators.
Rare earth ring magnets, also sometimes called "donut" magnets are, as one would guess, disc magnets with a hole in the middle. Their dimensions are listed as "outer diameter x inner diameter x thickness". Try mounting a stack of them on a pencil for a simple demonstration of levitation.
Rare earth block magnets have dimensions listed as "length x width x thickness" with length always being the largest dimension of the three. They are convenient for use in holding up signage or when used in pairs as a simple knife or tool rack.
Rare earth cube magnets can be used to build Halbach arrays, clamp metals or wood for drilling or as very expensive building blocks. By definition, all 3 sides of a cube are equal length.
Square rare earth magnets have two sides of equal length and dimensions are specified as "side x side x thickness, where sides are equal length. Their applications include use in brushless motors, bicycle speedometers and fly fishing reels.
- Can damage computer gear & credit cards.
- Handle with care. Larger magnets can snap together & shatter on impact.