The maximum lifting capacity specified above was measured using smooth, polished sheet metal. The sheet metal used was of optimal thickness. The pull-off force acted perpendicularly. With a force acting parallel to the sheet metal, i.e. when moving the magnet across the sheet metal, the lifting capacity of the magnet will be significantly lower. The gap between the magnet and the sheet metal resulting from the sheet metal being covered with a layer of paint or galvanic coating will also cause a decrease in the lifting capacity of the magnet. Any roughness or unevenness of the sheet metal will also reduce the lifting capacity of the magnet. The highest lifting capacity is achieved by using a sufficiently thick sheet containing a high amount of iron. Using high-carbon steel or cast iron sheet will result in a lower lifting capacity. The maximum lifting capacity is also affected by the operating temperature of the magnet. A heated magnet will have a lower lifting capacity.
The gap between the magnet and the iron plate significantly reduces the force needed to detach the magnet from the plate.
Maximum working temperature
450
[°C]
For flat magnets and magnets mounted in the open magnetic circuit working temperature may be insignificantly lower. For high magnets and magnets mounted in the closed magnetic circuit working temperature equals max. working temperature for a given material. Curie’s temperature is ~ 860°[C]. Temperature coefficient of remanence TK(Br): ≤ -0,02 [%/°C]. Temperature coefficient of coercivity TK(HcJ): ≥ +0,02 [%/°C].
Weight
2,9 [g]
AlNiCo Magnets may be used in water.
The magnet parameter values presented here are the result of measurements taken on one specific magnet and are used to compare magnets available in the online shop. We recommend testing the magnet yourself under the expected operating conditions.
Physical proprieties
Density
~7,3 [g/cm3]
Alnico pot magnet D8x8/M3/A
This magnet in housing is circular, cylindrical, shaped like a cylinder or disc.
Holding magnets are simple magnetic circuits composited of a magnet and a steel housing. In that holding magnets AlNiCo magnet was used. The magnet is housed in a steel casing so that it is better protected against impacts. There is an internal thread in the housing for attaching hooks or eye bolts. Due to the casing, the magnet is single-sided. It has been protected against corrosion by nickel plating. The maximum operating temperature is no more than 450 degrees Celsius. AlNiCo magnets stick to metal surface. You can attached magnet to surfaces made of ferromagnetic materials.