Countersunk Rare Earth Magnets – Neodymium & Samarium Cobalt Countersunk Magnet

Countersunk rare earth magnets are permanent rare earth magnets with countersunk holes. Generally, the countersunk holes are parallel to magnetization direction.

The countersunk holes provide a convenient way to attach the magnets onto almost any flat surface securely using a matching screw. Therefore, they are convenient organizer with limitless uses at work and in life, such as magnetic door latches, magnetic tool holder, cabinet closures, magnetic light base, magnetic gun holder and more mounting applications.

China Magnets Source Material Limited provide high quality countersunk magnets in both neodymium and samarium cobalt materials.

countersunk rare earth magnets

Countersunk Neodymium Magnets

Using the strongest and highly cost-effective permanent magnet in the world, neodymium countersunk magnets are ideal and highly recommend on many applications around the house and industry including door closures, holding tools, hanging art on a wall, and more! N35, N42, N48, N52 are popular grades for neodymium magnets.

Samarium Cobalt Countersunk Magnets

Compared with neodymium material, smco countersunk magnet can continuous work at high temperature conditions (up to 350℃). What’s more, smco countersunk magnet has very good corrosion resistance and long-term thermal stability. No surface coating is necessary. They are more often used in industries with special requirements.

Magnetization Direction of Countersunk Rare Earth Magnets

The magnetization direction is very important thing for permanent magnet. It determines the working surface of the magnet. You can choose it according to your actual usage.

  • If you use this magnet to attract to a steel surface, you can simply choose the N/S pole parallel to the countersunk hole.
  • When you are planning to use these magnets to attract to each other, you need purchase the direction parallel to the countersunk hole with half N/S half S/N.
  • If you plan to use these countersunk magnets to attract to your own magnets, you need buy the opposite pole to match them up.

Coating of Countersunk Rare Earth Magnet

Besides Ni+Cu+Ni triple layer plated, we can make rubber coated countersunk magnet, epoxy countersunk magnet and plastic coated countersunk magnets.

What Are Rare Earth Countersunk Pot Magnets?

Countersunk pot magnets are countersunk ring/disc/round/block/bar/rectangular magnet encased by a steel pot or cup. They are a kind of updated version of strong countersunk magnets – ULTRA STRONG HOLDING POWER, VERY DURABLE, SUPER EASY MOUNTING.

Can a Hole Be Drilled in Rare Earth Magnet?

And obviously, as a professional countersunk magnets supplier & manufacturer, we can make holes on rare earth permanent magnets easily. As we have a line of perforating machines and our workers are skilled to finish this process on magnet material blocks.

Countersunk Pot Magnets

But we don’t recommend our customer to drill a hole on finished magnet. The reasons are as below:

  1. very brittle and fragile of permanent magnet material
  2. dangerous combustible dust caused by drilling
  3. super easy to corrosion because of damaged coating
  4. losing magnetic force caused by high temperature in the process of drilling

If you need neodymium magnets with hole or countersunk holes, please buy ring magnet or countersunk magnet directly. China Magnets Source Material Limited can produce countersunk magnets according to customers’ requirements. Tell us the size, coating, quantity, and get a free quote now!

We will answer your email shortly!