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High Corrosion Resistance Magnets Countersunk

High corrosion magnets are designed to operate in the harshest of environments where magnets are most vulnerable to rusting. Our range of corrosion resistant magnets are designed to maintain a superior performance outdoors where other magnets are likely to fail.

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  • 25mm dia x 10mm thick x M4 thread hole Samarium Cobalt Pot Magnet - 16.7kg Pull
  • 20mm dia x 10mm thick x 5.2mm c/sink Ferrite Magnet - 1.2kg Pull
  • 19mm dia x 7.5mm thick Alnico Shallow Pot Magnet c/w 5.2mm dia countersunk hole - 3kg Pull
  • 29mm dia x 9mm thick Alnico Shallow Pot Magnet c/w 5.2mm dia countersunk hole - 5kg Pull
  • 38mm dia x 10mm thick Alnico Shallow Pot Magnet c/w 5.2mm dia countersunk hole - 13kg Pull
  • 10mm dia x 5mm thick x 3.2mm c/sink Samarium Cobalt Magnet - 1.4kg Pull
  • 20mm dia x 5mm thick x 5.2mm c/s Zinc Plated N42 Neodymium Magnet - 8.3kg Pull
  • 26.4mm dia x 6.2mm thick x 6.2mm c/sink PTFE Coated Neodymium Magnet - 6kg Pull
  • 20mm dia x 10mm thick x 5.2mm c/sink Samarium Cobalt Magnet - 7.1kg Pull
  • 50 x 50 x 25mm thick Rubber Coated N42 Neodymium Magnet with 8.2mm dia c/sunk hole - 84kg Pull (North/South)
  • 10mm dia x 2mm thick x 3.2mm c/sink PTFE Coated N42 Neodymium Magnet (North/South)
  • 26mm dia x 6mm thick x 6mm c/sink PTFE Spray Coated Neodymium Magnet - 6kg Pull (South)
  • 32mm dia Neodymium Pot Magnet - Stainless Steel & Rubber Coated - 34.7kg Pull

Corrosion is the most common cause for a magnet failing. If you are using magnets outdoors, or in an environment in which they are likely to come into regular contact with moisture then you need a material that won’t rust. Here, you will find a range of ceramic magnets, samarium cobalt magnets, alnico magnets and flexible magnets that all have excellent resistance to corrosion without any further coating or protection. Magnets that are susceptible to corrosion are often plated to give some protection, however this is often not enough to withstand continued use in moist environments, the magnets may look fine on the outside but could be rusting from the inside out.

Samarium cobalt magnets are made of an alloy with very little iron content, which gives them their superior resistance, while ceramic magnets are made from iron-oxide which is commonly known as rust and therefore won’t corrode further once manufactured.

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