Pot Magnets

Pot Magnets

 

Pot Magnets - Permanent Magnets

The basic principle of the holding or pot magnet is to direct and concentrate the flux from both magnetic poles to one active face. This is usually achieved with steel pole pieces or a steel-backing cup and can give 5 times the pull achieved from the same sized plain magnet. It also helps protect the brittle magnet materials and allows easy fixing. Pot magnets are predominately made from three types of magnetic material.

  • Sintered Ferrite this material is inexpensive yet offers good performance. The steel parts are plated and the ferrite is inert so give good resistance to corrosion. The maximum operating temperature would be +120 °C
  • Cast Alcomax is a more expensive material but has a greater holding force than ferrite, and can be heated to extreme temperatures of between +120°C up to a maximum of +500°C.
  • Rare Earth Samarium & Neodymium, pots and assemblies can offer up to eleven times the performance of a Ferrite system in a comparable size. Applications tend to be specialised engineering projects where performance and available space are key factors. Maximum operating temperatures are +60°C for the Neodymium and +150°C - +250°C for the Samarium depending on the design configuration

Stock Sizes

 Pot Magnets Part CodeStyleSize mmGRADE
D1D2H
Ferrite SPSF02085 B 32.00 5.50 7.00 7Kg
  SPSF02084 B 25.00 5.50 7.00 3.5Kg
  SPSF02083 B 20.00 4.20 6.00 2.5Kg
  SPSF00068 C 63.00 30.00 0 32Kg Boss
  SPSF00066 C 50.00 22.00 0 22Kg Boss
  SPSF00064 C 40.00 18.00 0 13Kg Boss
  SPSF00063 C 36.00 16.00 0 10Kg Boss
  SPSF00062 C 32.00 15.00 0 8Kg Boss
  SPSF00061 C 25.00 15.00 0 4Kg Boss
  SPSF00060 C 20.00 13.00 0 2.8Kg Boss
  SPSF00059 C 16.00 11.50 0 1.8Kg Boss
  SPSF00056 B 89.00 10.00 12.50 50Kg
Alcomax SPAL03118 B 38.00 6.50 10.50 20kg
  SPAL00086 B 60.40 8.33 15.10 40kg
  SPAL00085 B 49.20 6.50 11.90 27kg
  SPAL00084 B 38.00 6.50 11.00 20kg
  SPAL00082 B 26.00 5.00 12.00 6kg
  SPAL00081 B 28.50 8.70 4.80 5kg
  SPAL00080 B 19.10 3.70 7.80 3kg
  DPAL00400 F 20.60 19.00 6.00 4.5Kg
  DPAL00285 F 27.00 25.00 6.00 7Kg
  DPAL00284 F 17.50 16.00 6.00 2.7Kg
Rare Earth DPSC00104 E 8 - 20 1Kg
  SPN104246 A 14 - 3.5 4.5Kg
  SPN104726 A 25 - 8 20Kg
  DPSC00110 F 32 - 40 60Kg

Other sizes available to order.