How to cut a ring magnet?

Jul 16, 2025|

Hey there! I'm a supplier of ring magnets, and I often get asked about how to cut a ring magnet. It's a topic that might seem a bit tricky at first, but with the right knowledge and tools, it can be done safely and effectively. In this blog, I'll walk you through the whole process and share some tips I've picked up over the years.

Understanding Ring Magnets

Before we jump into the cutting process, let's quickly go over what ring magnets are. Ring magnets are, well, magnets shaped like rings. They come in various sizes, materials, and magnetization patterns. For instance, you've got the Super Magnetic Ring, which is known for its strong magnetic force. Then there's the Diametrically Magnetized Ring Magnet, where the magnetization runs across the diameter of the ring. And don't forget the Magnet Source Neodymium Magnet Ring, made from neodymium, one of the strongest magnet materials out there.

The material of the ring magnet matters a lot when it comes to cutting. Neodymium magnets, for example, are very hard and brittle. Ceramic magnets are also brittle but a bit less hard than neodymium. Samarium cobalt magnets are tough and can withstand high temperatures. Each material requires a different approach to cutting.

Safety First

Cutting a ring magnet is not a task to be taken lightly. Magnets can be pretty dangerous if not handled properly. Here are some safety precautions you should always follow:

Super Magnetic RingMagnet Source Neodymium Magnet Ring

  • Wear protective gear: This includes safety goggles to protect your eyes from flying debris, gloves to prevent cuts and burns, and a dust mask if you're working with a material that creates a lot of dust when cut.
  • Work in a well - ventilated area: Cutting magnets can produce fumes and dust, which can be harmful if inhaled. Make sure you have good air circulation in your workspace.
  • Keep other magnets away: Magnets can attract each other with a lot of force. If you have other magnets nearby, they could suddenly snap together and cause injury or damage to the magnets.

Tools You'll Need

To cut a ring magnet, you'll need the right tools. Here are some common ones:

  • Diamond saw: A diamond saw is great for cutting hard and brittle materials like neodymium and ceramic magnets. The diamond blade can make clean cuts through the magnet.
  • Grinder: A grinder can be used to shape the magnet after cutting. It's also useful for smoothing out rough edges.
  • Clamps: You'll need clamps to hold the magnet in place while you're cutting. This ensures that the magnet doesn't move around and helps you make more accurate cuts.

The Cutting Process

Now, let's get into the actual cutting process. Here's a step - by - step guide:

  1. Mark the cutting line: Use a marker or a scribe to mark the line where you want to cut the magnet. Make sure the line is straight and accurate.
  2. Secure the magnet: Use clamps to hold the magnet firmly in place on a workbench. Make sure it's not going to move during the cutting process.
  3. Start cutting: If you're using a diamond saw, turn it on and slowly lower the blade onto the magnet along the marked line. Apply gentle pressure and let the saw do the work. Don't force the blade through the magnet, as this can cause it to break or chip.
  4. Cool the blade: As you're cutting, the blade can get hot. You can use a coolant, like water, to keep the blade cool and prevent it from overheating. This also helps to reduce the amount of dust and debris.
  5. Finish the cut: Once you've cut through the magnet, turn off the saw and let it stop completely. Carefully remove the clamps and take out the cut pieces.

Shaping and Finishing

After cutting the magnet, you might want to shape and finish it. Here's how:

  • Use a grinder: If you need to shape the cut pieces, you can use a grinder. Be careful when using the grinder, as it can generate a lot of heat and sparks. Wear your protective gear and work slowly.
  • Sand the edges: Use sandpaper to smooth out the rough edges of the cut magnet. Start with a coarse - grit sandpaper and then move on to a finer - grit sandpaper for a smoother finish.

Troubleshooting

Sometimes, things don't go as planned when cutting a ring magnet. Here are some common problems and how to solve them:

  • Cracking or chipping: If the magnet cracks or chips during cutting, it could be because you're applying too much pressure or using the wrong tool. Try reducing the pressure and make sure you're using the right blade for the material.
  • Uneven cut: An uneven cut can be caused by a dull blade or a magnet that's not held firmly in place. Replace the blade if it's dull and double - check that the magnet is securely clamped.

Conclusion

Cutting a ring magnet is definitely doable, but it requires the right knowledge, tools, and safety precautions. Whether you're working with a Super Magnetic Ring, a Diametrically Magnetized Ring Magnet, or a Magnet Source Neodymium Magnet Ring, following the steps I've outlined here will help you get the job done safely and effectively.

If you're in the market for high - quality ring magnets or have any questions about cutting or using them, don't hesitate to reach out. We're here to help you with all your magnet needs. Whether you're a DIY enthusiast or a professional in an industry that uses magnets, we've got the products and expertise to support you. Let's start a conversation about your specific requirements and see how we can work together!

References

  • "Magnet Handbook" by David Jiles
  • "Practical Magnetism" by Brian J. Ford
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