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K&J Magnetics Site Map



Home The K&J Magnetics welcome page.

Products The K&J Magnetics Products page, shows a top-level listing of product categories.

  NEODYMIUM DISC MAGNETS

Flat and round. The most common and economical shape for neodymium magnets.

  NEODYMIUM CYLINDER MAGNETS

Also known as rods. These are discs that are at least as thick as they are wide.

  NEODYMIUM BLOCK MAGNETS

Rectangular, square and cube shapes.

  NEODYMIUM RING MAGNETS

Discs or cylinders with holes.

  NEODYMIUM SPHERE MAGNETS

Spherical or "ball" shaped neodymium magnets.

  SURPLUS NEODYMIUM MAGNETS

Various surplus magnets that we have acquired and offer at discounted prices.

  MOUNTING MAGNETS

Different styles of mounting hardware utilizing the incredible power of neodymium magnets. Some with holes, studs, female studs and even hooks!

    Standard Mounting Magnets

Different styles of mounting hardware utilizing the incredible power of neodymium magnets. Designed for ANSI standard hardware, includes some with holes, studs, female studs and even hooks!

      MMS-A

Flat mount with a tapered center hole for recessing the head of a screw.

      MMS-B

Flat mount with a straight center hole to recess a bolt or a pan head screw.

      MMS-C

Solid mounting magnet with a male stud attached for bolting to an assembly.

      MMS-D

Solid mounting magnet with a female threaded shaft attached.

      MMS-E

Solid mounting magnets with hooks attached.

      MMS-G

Solid mounting magnets with eye hooks attached.

      MMS-H

Flat mount with an internally threaded hole for attaching to a bolt.

    Metric Mounting Magnets

Different styles of mounting hardware utilizing the incredible power of neodymium magnets. Designed for metric, or ISO hardware, includes some with holes, studs, female studs and even hooks!

      MM-A

Flat mount with a tapered center hole for recessing the head of a screw.

      MM-B

Flat mount with a straight center hole to recess a bolt or a pan head screw.

      MM-C

Solid mounting magnet with a male stud attached for bolting to an assembly.

      MM-D

Solid mounting magnet with a female threaded shaft attached.

      MM-E

Solid mounting magnets with hooks attached.

      MM-F

Small hooks with a strong magnet inside.

      MM-RC

Rubber covers for our Mounting Magnets to protect surfaces and prevent slipping. Now available for sizes 32mm through 75mm diameter.

    Rectangular Mounting Magnets

The incredible strength of our Mounting Magnets, now available in a rectangular shape. A K&J exclusive!

    Magnetic Hooks

Hooks with strong magnets inside provide a great solution for hanging objects from various surfaces. Metal walls, refrigerators, filing cabinets, etc.

  PLASTIC/RUBBER COATED

Our super strong neodymium magnets coated in plastic and rubber are completely weatherproof and are virtually indestructible.

  Countersunk Magnets

Countersunk and Counterbored Magnets.

  GRADE N50/N52 MAGNETS

Neodymium magnets in grade N50 and N52. More powerful than grade N42 magnets of the same size.

  OTHER

Magnetic Sculpture Kits, Sample Packages, Permanent Magnet Levitators, Steel Balls, Special Shaped Neo Magnets, Magnetic Viewing Film and more.

    Other Magnet Shapes

Unique shapes and special-use magnets.

      Arc Segments

Curved magnet segments of various dimensions and magnetization directions.

      Sample Packages

Various Sample Packages of our incredible neodymium magnets.

      High Temp Magnets

Neodymium and Samarium Cobalt magnets designed for use in high temperature applications

      Mag-Neato Toys

Highly polished Strong Magnet Toys that make all kinds of strange noises when they come into contact with each other. Also known as "magnetoids". Fascinating educational toys for kids ages 5 to 95. Great gift idea!

      Stepped Discs

Disc magnets with a stepped perimeter provide a good attachment solution for many applications.

      Stepped Blocks

Block magnets with stepped edges provide a good attachment solution for many applications.

      Stars

Various sizes of star shaped neodymium magnets

      Triangles

Various sizes and types of triangle shaped magnets

      Samarium Cobalt Magnets

Samarium Cobalt (SmCo) Magnets have higher operating temperature than Neodymium - up to 480 degrees Fahrenheit (250 degrees Celcius). They are also more corrosion resistant, more brittle and more expensive than neodymium.

      Slot Car Magnets

We have started to stock some specialty magnets for use in slot cars for improving traction. Here is where you will find what we currently have in stock. Happy racing!

      Horseshoe Magnets

Classic Alnico Horseshoe Magnets.

      Stir Bars

Stir Bar magnets used for stirring liquids. Popular for science experiments, research and brewing.

    Other Products

More magnetic and non-magnetic items.

      Magnetic Thumbtacks

Strong, colorful magnets for the fridge, metal bulletin board, filing cabinet, locker or any other steel surface. Utilizing our Grade N42 neoydmium magnets.  Now in 2 sizes!

      New Stuff

We will update this category with our newest magnet additions.

      Sculpture Kits

Sculpture art/puzzles made with our neodymium magnets and nickel plated steel balls.

      Levitation & Graphite

Various items for use in permanent magnet levitation experiments, including our very popular Magnet Levitator

      Viewing Film

Green film used to view magnetic fields of permanent magnets.

      Steel Balls

Nickel Plated Steel Balls
Commonly used in our Neodymium Magnet Sculptures
These are not magnets

      Telescoping Pick-Up Tools

Telescoping Pick-Up tools useful for mechanics or anyone that needs to retrieve metal objects.

      Magnetic Badge Holders

Badge holding sets designed to hold through clothing without using a pin.

      Steel Cups and Washers

Nickel-plated steel parts for latches or other closure applications. Insert one of our magnets into the cup and pair with a washer for a clean-looking magnetic catch.

      Gift Ideas

Magnets make great gifts for almost anyone for any occasion!

      Fuel Line Magnets

Special magnet assemblies designed for easy placement around fuel lines.  They can also be used on water lines or any other pipes.

      Pole Identifiers

Devices to identify the North and South poles of a magnet.  They can also be used to identify the direction of the magnetic field at any point around a magnet.

      Magnetic Jewelry Clasps

Jewelry clasps for making your own jewelry or replacing the clasps on existing bracelets and necklaces.

      Double-sided Adhesives

Double-sided adhesive dots used to adhere magnets to non-magnetic surfaces.

      Magnet Separating Tools

Specially designed tools used to separate large magnets.

      Sewing Magnets

Also called "Sew-In" magnets, designed specifically for use with fabrics as clasps and magnetic attachments.

  Applications

Magnets grouped by function for many popular uses.

    Refrigerator Magnets

Popular solutions for fridge magnets, both by themselves or used in craft projects.

      Fridge Magnet: Thumbtacks

Our most popular fridge magnet solution comes in two sizes and many colors. Strong, yet easy to handle.

      Fridge Magnet: Tall Cylinders

Tall cylinders are easy to grab. Great for when magnets will be moved often.

      Fridge Magnet: Thin Discs

Thin discs have good holding strength, but are harder to grasp. Perfect for items that will stay in one spot for a while.

    Aquarium Magnets

Plastic coated magnets are often chosen as a waterproof solution for use in aquariums. Holds everything from water jets to coral frags. More colors available in our Plastic/Rubber section.

    Meteorite Hunting

Neodymium magnets are often used to find and identify meteorites. Learn more in our article on Magnetic Meteorites.

    Levitation

Magnets, pyrolytic graphite and kits for use in levitation experiments. See our article on Diamagnetic Levitation. Plus magnets often used in low friction magnetic bearings.

    Sensors & Relays

Magnets often chosen to activate Reed Switches & Hall Effect Sensors.

    Crafts & Jewelry

Magnets used in craft projects, jewelry, sewing and more.

    Science Projects

Popular magnets and accessories for science projects and experimentation.

    Just for Fun

Kits, sculptures and more.

    Fuel & Water Treatment

Magnets often used around fluid lines/pipes for fuel or water treatment. Choose a size similar to the diameter of your pipe.

    Healing & Therapy

Various sizes and shapes often used for magnetic therapy applications.

    Models & Miniatures

Popular magnets for modelers, wargamers, train enthusiasts and stock car racers.

    Tools & Accessories

Handy tools and accessories for identifying poles or separating large magnets.

Neo Mag Info Neodymium Magnet Information.

Order/Ship Info Information on ways to order products from K&J Magnetics, and details about the various shipping options.

Safety Neodymium Magnet Safety Information.

Specs Neodymium Magnet Specifications, including physical properties, thermal characteristics, mechanical, plating options and more.

FAQ Our infamously huge, ever-growing list of Frequently Asked Questions.

Blog The K&J Magnetics blog, including detailed articles about many magnet topics.

  Pseudo-Levitation

  Leverage & Friction

  Mounting Magnets

  Magnetic Spice Jars

  The Earth Is a Magnet

  Halbach Arrays

  Aquarium Magnets

  Homopolar Motors

  Vehicle Signs

  Magnetic Forces

  Stir Bars

  Adhesive Backed Magnets

  Maglev Trains

  Magnetic Water Treatment

  How to Separate Strong Magnets

  Superconductor Levitation

  Magnet Grades

  Eddy Currents

  Gauss Guns

  Gap Calculator

  Diamagnetism and Levitation

  Shipping Magnets

  Audio Speakers

  Shake Flashlight

  Magnetic Paint

  Magnetic Meteorites

  Pole Climbing Robot

  Hanging Art on a Wall

  Steel Thickness Calculator

  How Neodymium Magnets are Made

  Magnet Basics

  Sewing Magnets

  Pacemaker Safety

  Reed Switches and Hall Effect Sensors

  Hard Drive Destruction

  Temperature and Neodymium Magnets

  Magnetic Knife Holder

  Sticky Business - How to Glue Neodymium Magnets

  How Much Will a Magnet Hold?

  Which Pole Is North?

  Surface Fields 101

  Shielding Materials

Glossary Glossary of Magnet Terminology.

Uses A list of just some of the many ways neodymium magnets are used.

About Us Who are K&J Magnetics?

The Contest Descriptions of some of the winners of our monthly magnet-giveaway contest.

  Magnetic Pen

  Seismometer

  Hanging Art Blocks

  Magnetic Spice Containers

Custom Magnets The Custom Magnet Request Form.

Pull Force Calculator The Original K&J Pull Force Calculator, calculates the Pull Forces for a given sized disc, cylinder, block or ring magnet in 3 different test cases.

  Repelling Force Calculator Calculates the theoretical repelling force between to same-sized magnets.

  Magnetic Field Calculator Calculates the strength and direction of the magnetic field around a disc or cylinder magnet.

  Steel Plate Thickness Calculator

Calculates the Pull Force of a magnet stuck to a steel plate of various thicknesses.

  Gap Calculator

Calculates the magnetic field strength between two neodymium magnets separated by a small gap.

RoHS Compliance Statement Our RoHS Compliance Statement in PDF format.

Policies Our policies concerning payment, order cancellation, returns, damages, security and privacy.

Contact Us How to contact us.

Track your order Where are my magnets?

Affiliate Partners Program Become a K&J Affiliate and earn money for directing traffic from your site to K&J Magnetics.

BH Curves Downloadable charts showing the BH curves for our most popular magnet grades.

Build a Magnet Separator Tool Instructions on how to build your own Magnet Separator tool, especially handy for separating large magnets.

Fuel Magnets Our view on saving fuel with magnets.

K7 Instructions Building a Truncated Octahedron.

Magnetization Direction Descriptions of magnetization directions possible for many neodymium magnet shapes.

Magnetic Field Some visualizations of magnetic fields.

Magnet Summary Page Sortable tables showing most of our magnet shapes, including Pull Force and Surface Field values.

Newsletter Signup Sign up to receive our email newsletter, including exclusive discount codes.

Rubber Coat your magnets So you want to rubber coat your magnets...

Security More information about your security with K&J Magnetics.

Select-a-Size Magnet Finder A table of disc/cylinder or block magnets that helps locate a particular magnet based on it's size.

Video Summary A list of product pages that include videos.


May
Specials

DDH1
10% Off
DDH1
Disc Magnets


DEX2
15% Off
DEX2
Cylinder Magnets



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K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets