Super Strong Neodymium Magnet

Extremely strong rare earth magnet! This cylindrical neodymium magnet measures 20mm high and 12mm in diameter...

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Extremely strong rare earth magnet! This cylindrical neodymium magnet measures 20mm high and 12mm in diameter, and has a massive pull strength of 17kg. Provides a great demonstration of the strength of rare earth magnets. Also works well with our magnetic putty.

Age: 12 + with adult supervision. This magnet is not a toy and is not intended for use by young children.

What You Get

Neodymium N50 rare earth magnet, nickel coated, cylindrical, 12mm diameter and 20mm height

Diameter: 12mm (0.472" in.)
Height: 20mm (0.787" in.)
Grade: N50
Coating: Nickel (Ni)
Magnetized Direction: Through height - 20mm
Theoretical Holding Force: ~17.24kgs (38lbf)
Surface Gauss: 6751 Gauss

How does it work?

Neodymium magnets are made from a mix (alloys) of rare earth elements: neodymium, iron and boron (Nd2Fe14B), and are the strongest type of permanent magnets.

Test the strength of this beauty by using our metal slinky. Your students might be very surprised when this relatively small magnet lifts many more coils than much larger, weaker magnets like common ferrites.

Rare earth magnets are brittle and can chip or break when dropped on a hard surface or allowed to smash together with another magnet or a piece of metal. These magnets must be used with care, they can disrupt sensitive electronic equipment like computers, and can leap together from a distance and pinch fingers.


  • Metals and magnets
  • Magnet properties
  • Strong neodymium magnets

Small parts not suitable for children under 3 years. Should a child or any person ingest magnets, seek medical help immediately.

Do not store or handle magnets in proximity to iron, steel or other ferrous materials or items. Serious injury or property damage may result.


Persons with pacemakers, metallic implants or neurostimulators must not handle magnets. Serious injury may result.

Permanent magnetic fields may corrupt, degauss or destroy data stored in a magnetic state. This includes floppy disks, hard drives and credit cards.

More Information
Length (cm) 2
Width (cm) 2
Height (cm) 3
Size 19mm
Age Group 12+ Years
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What are the shipping costs?

FREE Shipping is available on all orders over $120 to anywhere in Australia!

Orders under the value of $120 incur a low flat rate shipping cost of only $9.95 to anywhere in Australia.

Express, Registered and International delivery options are also available. The cost for these premium shipping services will be automatically calculated during the checkout process.  Please conact us if you have any queries with these services.

In some cases we may need to apply a shipping surcharge to large or fragile items, especially to remote or non-urban locations. You will be contacted by us for confirmation if this additional charge is applicable.

How long will it take for my order to arrive?.

You should receive your order within 2 to 4 working days, although to some regional and out back areas it can take up to 2 working days longer. Orders going to WA also take a little longer, up to 6 working days.

All standard orders are shipped using Australia Post's eParcel service, so you'll be kept fully informed of the progress of your order during its journey to you. Aside from receiving regular email updates, you can enter your tracking number into Australia Post's website at any time for information about the delivery status of your order.

International delivery will take from between 1 to 4 weeks depending on the destination and potential customs clearance delays.

When will my order be shipped?

We ship every Victorian business day. Orders received and paid for by 12pm AEST time will generally be shipped the same day.

If you require your order urgently, we have a next day delivery express service available.

What locations do you ship to?

We ship to both Australian and International customers.

What shipping options are available?

The majority of orders are shipped using Australia Post's trackable eParcel service, with larger orders being sent by national courier.

We also have options for express or registered post. A number of international delivery options are also available. These can be selected during checkout.

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