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10 Cromac Place
The Gasworks
Belfast BT7 2DH
Tel: +44 (0) 2890 271001
Fax: +44 (0) 2890 271002
Samarium
Samarium-Cobalt pot magnets can be used in temperatures of up to 200°C. This does, however, cause a decrease in magnetic force of 15 to 20%. This is restored when the magnet temperature returns to normal.
The attractive force of Samarium-Cobalt pot magnets is approximately 5 times as high as that of ceramic pot magnets. These pot magnets are also more difficult to demagnetise in a strong alternating current field.
| Samarium Cobalt pot magnet, with threaded bush, galvanised | |||||||
|---|---|---|---|---|---|---|---|
| Dimensions in mm | |||||||
| Order Number | D2) | H2) | L2) | d | M | Weight in g | Magnetic force in N1) |
| GM17201 | 6 | 4,5 | 11,5 | 6 | 3 | 2 | 5 |
| GM17202 | 8 | 4,5 | 11,5 | 6 | 3 | 3 | 11 |
| GM17203 | 10 | 4,5 | 11,5 | 6 | 3 | 4 | 20 |
| GM17204 | 13 | 4,5 | 11,5 | 6 | 3 | 6 | 40 |
| GM17205 | 16 | 4,5 | 11,5 | 6 | 4 | 7 | 60 |
| GM17206 | 20 | 6 | 13 | 8 | 4 | 16 | 90 |
| GM17207 | 25 | 7 | 14 | 8 | 4 | 28 | 150 |
| GM17208 | 32 | 7 | 15,5 | 10 | 5 | 47 | 220 |
| Samarium Cobalt pot magnet, flat, galvanised | ||||
|---|---|---|---|---|
| Dimensions in mm | ||||
| Order number | D2) | H2) | Weight in g | Magnetic force in N1) |
| GM17101 | 6 | 4,5 | 1 | 5 |
| GM17102 | 8 | 4,5 | 2 | 11 |
| GM17103 | 10 | 4,5 | 3 | 20 |
| GM17104 | 13 | 4,5 | 4 | 40 |
| GM17105 | 16 | 4,5 | 7 | 60 |
| GM17106 | 20 | 6 | 14 | 90 |
| GM17107 | 25 | 7 | 26 | 150 |
| GM17108 | 32 | 7 | 42 | 220 |
| Samarium Cobalt pot magnet, high, with brass body and h6 press fit tolerance | ||||||
|---|---|---|---|---|---|---|
| Dimensions in mm | ||||||
| Order number | D | H2) | A**) | Weight in g | Magnetic force in N1) | Distance* (mm) |
| GM17001 | 6 | 20 | 10 | 4,5 | 8 | 1.5 |
| GM17002 | 8 | 20 | 10 | 8 | 22 | 1.5 |
| GM17003 | 10 | 20 | 8 | 12 | 40 | 2 |
| GM17004 | 13 | 20 | 6 | 20 | 60 | 2.5 |
| GM17005 | 16 | 20 | 8 | 30 | 125 | 3 |
| GM17006 | 20 | 25 | 5 | 60 | 250 | 4 |
| GM17007 | 25 | 35 | 7 | 134 | 400 | 5 |
| GM17008 | 32 | 40 | 4,5 | 251 | 600 | 6 |
**) Dimension A indicates the length that could be cut off the bar magnet without affecting the holding force.
*) While mounting in iron it is important to maintain determined distances between the body of the bar magnet and the iron, so magnetic short circuits can be avoided. These distances are also to be kept at the rear, in case dimension A is cut off the bar magnet and the latter mounted in iron.
1) The holding forces have been determined on a polished plate of S235JR (acc. EN10025) with a thickness of 10 mm by pulling the magnet vertically from the surface (1kg~10N). A variation of -10% of the given values is possible by exception.Generally, the value will be exceeded. Small cracks in the magnet do not influence holding forces.
2)
| Dimensions (mm) | Tolerances (mm) |
|---|---|
| 4.5 - 6 | ±0.1 |
| 7-30 | ±0.2 |
| 32-120 | ±0.3 |
