Magnet quality

Holding force

Height

Diameter

Flat pot magnets

Compact flat magnet systems available in neodymium, samarium cobalt, ferrite and AlNiCo. Suitable for gluing.

Thanks to the shell of these magnet systems, the magnetic field strength increases and the pot magnets are more resistant to corrosion or chemicals. Pot magnets have a single attracting surface. This precludes dispersion of the magnetic field.

The specified holding forces are measured under optimum conditions: perpendicular, on a piece of grade 37 steel that has been ground flat with a thickness of 5 mm, without an air gap.


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Neodymium The strongest magnet type

3 variants

6 mm Neodymium (NdFeB)

€ 1,50

PM-BA-N-SG-D6x4.5
Article number GM17401
Stock 49
Holding force 5 N
Height 4.5 mm
Material housing Galvanized steel
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8 mm Neodymium (NdFeB)

€ 1,55

PM-BA-N-SG-D8x4.5
Article number GM17402
Stock 39
Holding force 13 N
Height 4.5 mm
Material housing Galvanized steel
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10 mm Neodymium (NdFeB)

€ 1,74

PM-BA-N-SG-D10x4.5
Article number GM17403
Stock 746
Holding force 25 N
Height 4.5 mm
Material housing Galvanized steel
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What does a neodymium pot magnet consist of?

These super-strong pot magnets are made of the alloy neodymium-iron-boron - (NdFeB) - which Goudsmit markets under the brand name Neoflux®. The shell provides magnetic shielding. Goudsmit supplies neodymium pot magnets with a brass or steel shell. The holding surface is covered with a protective coating to prevent corrosion.

Cup magnets rare earth - NdFeB

When does loss of magnetic strength occur?

Neodymium cylindrical, flat pot magnets have a maximum operating temperature of up to 80 °C. When heated to this temperature, the magnet loses 15 to 20% of its magnetic force. This is not permanent; the force is restored when the magnet returns to the normal ambient temperature.

External magnetic fields may also cause loss of magnetic force. An air gap or non-magnetic materials located between the magnet and workpiece reduce the tensile force.

neodymium potmagnet flat

Magnetic short circuit

To prevent loss of holding force due to magnetic short-circuit, neodymium magnets with a brass shell may not be pressed directly into steel. Always maintain a minimum distance between the brass shell of the pot magnet and the steel. Contact Goudsmit for specific recommendations.

E-mail or call +31 (0)40 221 3283.

neodymium pot magnet high with fitting tolerance h6

Neodymium (continued) The strongest magnet type

5 variants

13 mm Neodymium (NdFeB)

€ 1,92

PM-BA-N-SG-D13x4.5
Article number GM17404
Stock 85
Holding force 60 N
Height 4.5 mm
Material housing Galvanized steel
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16 mm Neodymium (NdFeB)

€ 2,24

PM-BA-N-SG-D16x4.5
Article number GM17405
Stock 8
Holding force 95 N
Height 4.5 mm
Material housing Galvanized steel
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20 mm Neodymium (NdFeB)

€ 3,42

PM-BA-N-SG-D20x6
Article number GM17406
Stock 0
Holding force 140 N
Height 6 mm
Material housing Galvanized steel
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25 mm Neodymium (NdFeB)

€ 5,00

PM-BA-N-SG-D25x7
Article number GM17407
Stock 0
Holding force 200 N
Height 7 mm
Material housing Galvanized steel
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32 mm Neodymium (NdFeB)

€ 7,40

PM-BA-N-SG-D32x7
Article number GM17408
Stock 33
Holding force 350 N
Height 7 mm
Material housing Galvanized steel
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Ferrite Cost effective

3 variants

10 mm Ferrite

€ 1,48

PM-BA-F-SG-D10x4.5
Article number GM16401
Stock 91
Holding force 4 N
Height 4.5 mm
Material housing Galvanized steel
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13 mm Ferrite

€ 1,60

PM-BA-F-SG-D13x4.5
Article number GM16402
Stock 29
Holding force 10 N
Height 4.5 mm
Material housing Galvanized steel
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16 mm Ferrite

€ 1,75

PM-BA-F-SG-D16x4.5
Article number GM16403
Stock 3
Holding force 18 N
Height 4.5 mm
Material housing Galvanized steel
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Good magnetic properties, affordably priced

Ferrite pot magnets, also referred to as ceramic pot magnets, are fitted with a steel pot that provides shielding of the magnetic field. Flat ferrite pot magnets require only a minimal installation height. This provides constructive advantages.

Ferrite pot magnets are corrosion-resistant and therefore do not require additional coating on the magnet surface.

cupmagnets ferrite various sizes and versions

When does loss of magnetic strength occur?

Ferrite pot magnets have an operating temperature of up to 200 °C. When heated to this temperature the magnet loses 30 to 40% of its magnetic force. This is not permanent; the force is restored when the magnet returns to the normal ambient temperature.

External magnetic fields may also cause loss of magnetic force. An air gap or non-magnetic materials located between the magnet and workpiece reduce the tensile force.

 

neodymium potmagnet flat

Corrosion-resistant

Ferrite pot magnets do not corrode and are suitable for outdoor use.

ferrite pot magnet flat | Goudsmit Magnetics

Ferrite (continued) Cost effective

7 variants

20 mm Ferrite

€ 1,63

PM-BA-F-SG-D20x6
Article number GM16404
Stock 0
Holding force 30 N
Height 6 mm
Material housing Galvanized steel
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25 mm Ferrite

€ 1,79

PM-BA-F-SG-D25x7
Article number GM16405
Stock 100
Holding force 40 N
Height 7 mm
Material housing Galvanized steel
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32 mm Ferrite

€ 1,79

PM-BA-F-SG-D32x7
Article number GM16406
Stock 25
Holding force 80 N
Height 7 mm
Material housing Galvanized steel
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40 mm Ferrite

Price on request

PM-BA-F-SG-D40x8
Article number GM16407
Stock 0
Holding force 125 N
Height 8 mm
Material housing Galvanized steel
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50 mm Ferrite

€ 3,08

PM-BA-F-SG-D50x10
Article number GM16408
Stock 549
Holding force 220 N
Height 10 mm
Material housing Galvanized steel
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63 mm Ferrite

€ 5,85

PM-BA-F-SG-D63x14
Article number GM16409
Stock 0
Holding force 350 N
Height 14 mm
Material housing Galvanized steel
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80 mm Ferrite

Price on request

PM-BA-F-SG-D80x18
Article number GM16410
Stock 0
Holding force 600 N
Height 18 mm
Material housing Galvanized steel
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Samarium cobalt (SmCo) High magnetic force at high operating temperature

3 variants

6 mm Samarium-Cobalt (SmCo)

€ 1,46

PM-BA-S-SG-D6x4.5
Article number GM17101
Stock 6
Holding force 5 N
Height 4.5 mm
Material housing Galvanized steel
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8 mm Samarium-Cobalt (SmCo)

€ 1,67

PM-BA-S-SG-D8x4.5
Article number GM17102
Stock 3
Holding force 11 N
Height 4.5 mm
Material housing Galvanized steel
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10 mm Samarium-Cobalt (SmCo)

€ 2,17

PM-BA-S-SG-D10x4.5
Article number GM17103
Stock 12
Holding force 20 N
Height 4.5 mm
Material housing Galvanized steel
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Second strongest type of magnet

Samarium-cobalt pot magnets offer the unique combination of high magnetic force and high operating temperature. These super-strong pot magnets are made of an alloy of samarium and cobalt. The holding force at room temperature is 5 times higher than that of ferrite pot magnets.

 

With the exception of Neoflux® pot magnets, samarium cobalt pot magnets are the strongest that we have in our product range.

cupmagnets ferrite various sizes and versions

When does loss of magnetic strength occur?

Samarium cobalt pot magnets have an operating temperature of up to 200 °C. When heated to this temperature, the magnet loses 15 to 20% of its magnetic strength. This is not permanent; the force is restored when the magnet returns to the normal ambient temperature.

External magnetic fields may also cause loss of magnetic force. An air gap or non-magnetic materials located between the magnet and workpiece reduce the tensile force.

flat potmagnets SmCO samarium cobalt

Installation and demagnetization

Samarium cobalt pot magnets are very stable and are difficult to demagnetize in a strong alternating current field.

 

The steel pot does not provide any magnetic shielding. Therefore, these pot magnets may not be built into steel components without taking special measures. The distance between the steel component and the samarium cobalt pot magnet must be 1.5 to 6 mm, depending on the size of the pot magnet.

neodymium pot magnet high with fitting tolerance h6

Samarium cobalt (SmCo) (continued) High magnetic force at high operating temperature

5 variants

13 mm Samarium-Cobalt (SmCo)

€ 2,76

PM-BA-S-SG-D13x4.5
Article number GM17104
Stock 23
Holding force 40 N
Height 4.5 mm
Material housing Galvanized steel
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16 mm Samarium-Cobalt (SmCo)

€ 3,57

PM-BA-S-SG-D16x4.5
Article number GM17105
Stock 18
Holding force 60 N
Height 4.5 mm
Material housing Galvanized steel
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20 mm Samarium-Cobalt (SmCo)

€ 5,27

PM-BA-S-SG-D20x6
Article number GM17106
Stock 30
Holding force 90 N
Height 6 mm
Material housing Galvanized steel
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25 mm Samarium-Cobalt (SmCo)

€ 8,06

PM-BA-S-SG-D25x7
Article number GM17107
Stock 5
Holding force 150 N
Height 7 mm
Material housing Galvanized steel
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32 mm Samarium-Cobalt (SmCo)

€ 11,78

PM-BA-S-SG-D32x7
Article number GM17108
Stock 0
Holding force 220 N
Height 7 mm
Material housing Galvanized steel
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