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SuperMagnetMan Teflon Coated Rectangle Magnet.  Used as medical magnets, motor magnets, automotive magnets, holding magnets, and robotics magnets.  Strong rare earth neodymium magnets.

4" (101.60mm) long x 3" (76.21mm) wide x 0.500" (12.70mm) thick, Black PTFE Coated, N50 Rare Earth Neodymium Rectangle Magnet, Magnetized thru thickness.

Minimum Order Quantity (MOQ) = 1 pc

Common Applications:  Motors, generators, pumps, sensors, and holding applications

About Large Rectangle Magnets:  Defined with a length equal to or greater than 1.000” (25.40mm).  The surface area will determine the reach and profile of the magnetic field and performance of the rectangle magnets. 

Direction of Magnetization (DOM):  Rectangle Magnets are manufactured so the DOM is set during the manufacturing process and cannot be changed.  Available options during manufacturing for DOM:

  1. Through the length
  2. Through the width
  3. Through the thickness

Magnetic Grades:  To view a table of grades and specs, see our Neodymium Magnet Grades & Specs

About Molded PTFE Coating on Magnets:

  • Requires molds and tooling
  • Excellent protection to magnet against breakage, impact, and corrosion
  • Available on magnets that are medium to larger in size. Small magnets cannot be molded, but can be sprayed (see Spray PTFE – Teflon)
  • Provides a protective coating from humidity, fluids and AutoClave
  • Color of PTFE is white
  • Thickness: 0.5-1 mm
  • Cost: molds & tooling are required, and cost is dependent upon complexity of each.  Cost / pc will decrease quickly with large quantities
  • Max working Temp: Approximately 250o C
  • Gluing PTFE magnets onto steel or plastic has very poor adhesion. A mechanical hold is recommended
  • Main Industries: Predominantly medical and food industries.

View Characteristics of Magnet Coatings for information on all our coating options.

Custom Magnets:  Need custom Rectangle Magnets?  Use one of the below methods to contact a magnetics specialist about your application.

Online Custom Magnet Request Form or Contact Us

Safe Magnet Practices:  Neodymium Magnets are a valuable resource to engineers, innovators, product designers and DIY professionals.  Always practice safe handling and keep away from children at all times.

TEF Rect4350BT

Regular price
Length4" (101.60mm)
Max Working Temp60°C
Plating/CoatingBlack PTFE
StrengthNeodymium 50
Thickness0.500" (12.70mm)
Width3" (76.21mm)
Direction of Magnetism Through thickness

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