Product Description

Ring Magnet N42 OD 1.14 X ID 0.221 X 0.402" Thick, Neodymium Ring Magnet  Epoxy Coated

Epoxy Coated Ring magnets in Grades N35, N36, N42, N45, 50 & N52 have both practical uses and are just  fun. These strong magnet Rings (Ring magnets) range in size from 1/8 inch to over 4 inches. Magnetic Rings are used in many chemistry and physics classes, make great “jewelry” at home  workshops and are just great to have around. High tech electronics & medical Equipment manufacturers also uses these miraculous feats of engineering. These Ring magnet s are super strong neodymium, a magnetic material developed in the 1980s and continuously refined many times since. This ring magnet is  protected by an epoxy coating to protect your powerful magnet Rings from rusting.

• TOP PRECISION: These Disc Magnets are Made better than the Industry Standard Tolerances, i.e. +/-0.002". Exacting Size Measurement Make Them Perfect For Even The Most Critical Applications.
• It is Coated with Ni+Cu+Ni Triple Layer Coating ,nickel, copper and nickel to give superior corrosion resistance and provide a smooth and clean finish like stainless steel.
• The magnets are a whopping 10x Stronger than the strongest ceramic magnet.
• These ring magnets provide you with countless possibilities and ideal for endless various purposes! Use magnets in order to complete DIY projects, improve your home, lift things on your cars, rvs, boats & white board
• PERMANENT STRENGTH: Neodymium is a kind of rare earth metal, it's suitable for making permanent & powerful magnets. This magnet has permanent magnetism, it will be the same powerful even decades after. 

Safety Warning: All magnets are fragile the same way a dish plate of the same thickness would be. These magnets especially the thinner ones should be treated the same way you would a thin dinner plate. Should one of these magnets break the edges are extremely sharp (like broken glass). Safety Warning: These neodymium magnets are not for children. Children that may place things in their mouths should be kept away from these magnets. If taken into the mouth these neodymium magnets may pinch across internal organ membranes with deadly results.

Applications: 

Organizing Office Supplies, outdoor lights Cabinets Tablecloths, Crafts Duvet Cover Closures name badges... Science Projects

Rare Earth Neodymium Ring Magnets For Sale By CMS Magnetics

This magnet is a rare earth class magnet in a ring magnet shape.

We divide Rare earth magnets into 2 main commercially available magnet Groups samarium cobalt and the much more popular magnetic material, neodymium from which we manufacture this neodymium ring magnet. 

Neodymium is actually an alloy of Neodymium, Iron & Boron.  You may see it written with these element symbols from the periodic table, NdFeB.

We manufacture all of our ring magnets under ISO 9003 & CMS’ own even more stringent quality control standards to get only the top grade Neodymium magnets to our clients. 

CMS has the right magnets for sale at the right price for your project.

Question: will they work to increase thickness of another magnet ?    Answer: I do not see why not. 2 of these guys together are pretty strong  Branch Cunningham

Has anyone used to keep a patio curtain in place?    I do it at home under my pergola. Works well  

Question: do they rust on a shower liner?    Neodymium Breaks down if in a constant wet state over time but if it doesnt get too wet where you place it all of the time you should be ok  Mike · May 12, 2021

Question: I have an rv refrigerator I need to keep open during storage and travel. I intend to use with wood block. How would u adhere these to wood.    Answer: epoxy.....or get the ones with holes in them.  

Question: Can I drill a hole of .5 inches on the magnite ?    Answer: It would be best if you purchased an already countersunk (with Hole) Neodymium does not do well when drilling  Bob Grodigan · November 8, 2021

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This ring Magnet Technical & Product Information About :

Material:  Sintered Neodymium N42 with Black epoxy coating

Size: 1.14"OD X 0.221"ID X  0.402"

Magnet Orientation (N & S) Axially Magnetized, the poles are on the flat surfaces.

Pull Force:  40 lbs.

Gauss Rating: 13,200 Gauss

MFG Tolerance: +/- .002%  

Style:  Blank Ring Magnet 

Shape: Standard Ring

Class: Rare Earth Magnet

Magnet Applications

Applications:  WorkShops DIY Science Projects  Hobby Crafts Office