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10kg - 20kg

If you are looking for Neodymium Magnets NZ, then AMF Magnetics is your supplier of choice. We take great pride in delivering quality magnets at competitive pricing with outstanding customer service, every time. This category of magnets includes a selection of magnets with a pull force between 10 and 20 kilograms. These magnets are in a huge variety of shapes including magnetic blocks, magnetic rings and pot magnets. The majority of these magnets are made from Neodymium however there are a couple of exceptions. There are several Ferrite magnets and one Alnico Horseshoe magnet that also fall into this category.

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Neodymium magnets were first introduced to the global market in the late 1980s. They have become the permanent magnet of choice since then. Neodymium magnets provide significantly greater magnetic power then a Ferrite or Alnico magnet of a similar size. At this 10-20kg strength Ferrites and Alnico magnets are in short supply. They are no longer as practical as Neodymium magnets due to the scale of the magnet required to achieve this strength.

Neodymium magnets

Neodymium magnets are able to maintain the magnetism indefinitely if they are not exposed to high temperatures. Rare Earth magnets will begin to lose their magnetic power permanently if exposed to temperatures in excess of approximately 150˚C. Other types of permanent magnet such as Ferrite or Alnico are better suited to high temperature applications.

Neo magnets are coated in Nickel, it is this silver plating that helps to protect the magnet from corrosion. Customers may wish to consider alternative platings such as Gold, Teflon or one of the many other choices. Each coating has attributes that help to protect the magnet in different conditions or situations. Gold is a great alternative to Nickel for magnets that will need to withstand a humid environment. Rubber on the other hand is an ideal coating for protecting Rare Earth magnets from impact. To find out more about each magnet coating please read our Knowledge Base article outlining the different options.

Neodymium magnets are very brittle and can shatter and chip if impacted by another magnet or object. We advise our customers to handle magnets with great care. There is a risk of hand injury and the chance of sharp chips if the magnet breaks. Neodymium magnets are not suitable for machining. Their hard and brittle nature means they are likely to break if post production modifications are attempted.

Holding Pot Magnets

Holding pot magnets are in a league of their own when it comes to strength to size ratio. The internal magnet is encased in a steel cup. This housing protects the magnet from impact however it also serves another important role. The steel augments the magnetic field of the magnet. This means that both North and South poles are repositioned to a single ‘working’ face of the magnet. One pole forms a ring surrounding the other pole.

The magnetic field of a pot magnet is largely confined to the area immediately in front of the magnet. Very little stray field is present at the sides or back of the magnetic pot. Strong in magnetic power, these magnets are ideal for more industrial settings that require robust equipment.

Steel pot magnets and rubber pot magnets are often used as magnetic door stops. They help to secure the door when in an open position. The strong magnets can withstand wind forces and create a safe passageway in public spaces like car parks and stadiums.


Where is the best place to buy magnets?
There are a number of challenges and benefits to purchasing magnets online. Choice is the number one benefit to buying magnets online. No retail store is going to stock the depth and diversity of range which is available online from AMF.

As a consumer it can be challenging to not be able to physically inspect the items you wish to purchase. It is understandable why many people look to Bunning, Mitre 10 or Jaycar for magnets that are available in store. However, this is ultimately a fruitless experience for many customers as the range and quality of magnets available is limited.

Our website has been built and refined over many years to ensure it is user friendly and information rich. We want our customers to shop with confidence. All our product pages are kept up to date with stock and all the specifications you need. If you have any questions we welcome you contacting our customer service team by phone or email to discuss. We also offer a generous 30 day returns policy.

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The Pull Force listed for each magnet is based on lifting 10mm thick steel from a horizontal surface. Magnets on a vertical surface (of 10mm thick steel) are generally able to hold around only 30% of the pull force listed in the product description. This is due to the effects of gravity and the lack of friction between the surface and the shiny magnet. Read More