United Nuclear - Neodymium magnets

Supplying the science hobbyist, industry, government, schools & universities since 1998.
"We specialize in small orders"
Neodymium Magnets
The most powerful magnets on Earth

All our magnets are high grade Neodymium, grade N45 or higher. They are much, much stronger than
common Neodymium magnets (N28, N35, N38, or N45) on the market today.

The magnets listed below are very powerful, much more powerful than magnets most people have seen, and need to be handled with proper care. The magnetic fields from these magnets can affect each other from more than 12 inches away. Please note that these magnets are fragile. Even though they are coated with a tough protective nickel plating, do not allow them to snap together with their full force or they may chip, break, and possibly send small pieces of metal flying on impact. Our larger magnets can easily bruise fingers and
even break finger bones as they attempt to connect together. Always wear protective eyewear or safety goggles when handling the magnets. Keep magnets away from any magnetic based storage devices such as desktop or laptop computers, hard drives, floppy disks, cassette tapes, VHS tapes, or credit cards. A distance of at least 12" should be kept between magnets and these items at all times. Keep them away from computer monitors, VCR'S and TV's, non-electronic wrist watches etc. If you or someone in your household has a PACEMAKER or another electronic surgical implant, don't even think of ordering these items. Neodymium magnets are not suitable for children to play with,
and should only be handled under strict adult supervision.
These Neodymium magnets are made to very demanding standards, however uses should be restricted to operating temperatures below 180° Fahrenheit (80° Celsius) or they will lose their magnetic properties.

SPECIAL NOTE !
All Neodymium magnets are not created equal!
You may find 'inexpensive' Neodymium magnets for sale from time to time. The phrase "buyer beware" certainly applies here. ALL our magnets are grade N45 or higher. There are plenty of inexpensive Neodymium magnets available... but they have just a small fraction of the magnetic power that N45 magnets have. Like always, you get what you pay for.
Please note - due to the expense involved of machining dies, etc. , we do not fabricate custom magnets.

All magnets listed below are brand new & factory fresh.
NOTE: The 'Pull Force" listed is on the magnets below is an optimal figure - it is the most pull the magnet will produce under ideal conditions. The actual magnet pull force is dependent on a variety of factors (the thickness of the metal the magnet is sticking to, the alloy composition of the metal, etc.) and the actual value may be a fraction of the amount stated depending on your actual application.

Supermagnets
*Our Most Powerful Magnets*
THESE ARE ABSOLUTELY NOT TOYS AND CAN BE VERY DANGEROUS! KEEP AWAY FROM CHILDREN! THESE MAGNETS CAN EASILY CRUSH FINGERS! WE WILL NOT BE HELD RESPONSIBLE FOR INJURY OR DAMAGE CAUSED BY THESE POWERFUL MAGNETS. THESE MAGNETS ARE SOLD TO ADULTS ONLY AND REQUIRE AN ADULT SIGNATURE UPON DELIVERY. If you really need unbelievably powerful magnets, here they are. Uses include magnetic steering of nuclear particles in accelerators, levitation devices, magnetic beam amplifiers, scrap iron separators, etc. Beware - you must think ahead when moving these magnets. If carrying one into another room, carefully plan the route you will be taking. Sensitive instruments like computers & monitors will be affected in an entire room. Loose metallic objects and other magnets may become airborne and fly considerable distances - and at great speed - to attach themselves to this magnet. If you get caught in between the two, you can be severely injured. These magnets will crush bones in the blink of an eye. Two of these magnets close together can create an almost unbelievable magnetic field that can be incredibly dangerous. Of all the unique items we offer for sale, we consider these items the most dangerous of all. Our normal packing & shipping personnel refuse to package these magnets - our engineers have to do it. This is no joke or exaggeration - and we cannot stress it strongly enough. You must be extremely careful - and know what you're doing with these magnets. Two Supermagnets can very easily get out of control, crush fingers and instantly break ribs or even your arm if opposing poles fly at each other. A small child recently lost his hand when his father left two # 31 supermagnets unattended. The child picked one up and when he approached the other magnet on a nearby table, it became airborne and obliterated his small hand. NEVER ALLOW CHILDREN NEAR ANY OF THESE MAGNETS! If working with multiple Supermagnets, always handle one magnet at a time, secure it, then proceed to the next magnet. POLARITY The disc Supermagnets are Axially Magnetized (the top & bottom faces are the north & south poles). The poles on Supermagnet #3 are the large 2" x 3" faces on opposite sides. SHIPPING We can only ship these magnets by ground UPS - they cannot be shipped via air as it will interfere with the aircraft's navigational equipment. All Supermagnets are packed in either small wooden boxes or with large blocks/panels of Styrofoam in double-wall cardboard boxes to minimize the external magnetic field and contain the magnet These magnets are rated at Grade N45 - the most powerful there is. Ni-Cu-Ni Plated Neodymium magnets with Matte finish. Click on any image to view larger pictures. Supermagnet # 21 (2" x 1" Disc): $50.00 Supermagnet # 22 (2" x 2" Disc): $80.00 Supermagnet # 31 (3" x 1" Disc): $100.00 Supermagnet # 32 (3" x 2" Disc): $200.00 Supermagnet # 33 (3" x 3" Disc): $275.00 Supermagnet # 200 (2" Sphere): $90.00 Supermagnet # 222 (2" Cube): $100.00 Supermagnet # 405 (4" x 0.5" x 2" Ring): $75.00 Supermagnet # 232 (2" x 3" x 2" Block): $175.00	Pull Force - 175 pounds Pull Force - 370 pounds . .Pull Force - 270 pounds Pull Force - 535 pounds .Pull Force - 800 pounds . .Pull Force - 400 pounds Pull Force - 500 pounds