The laboratory electromagnet is equipped with moisture-encapsulated coils for protection against water vapor. The laboratory electromagnet is equipped with removable pole caps for use while storing. 'Required' and 'Must Not Have' criteria limit returned Continuous duty cycle refers to a magnet that can run continuously over this time period. For small electromagnets, the specific time period is about 30 minutes for safety. The inside diameter of round ring / disc, button / pot, arc segments, or rotor magnets.ĭuty cycle is the percentage of total on time over one complete on-off cycle within specific period. Or the diameter of round magnetic separation components or electromagnets. The outside diameter of round horseshoe or u-shaped magnets, button / pot, ring / disc, sphere, arc segments, or rotor magnets. The overall thickness of the magnet, assembly, or electromagnet. The overall length of the magnet, assembly, or electromagnet. The overall width of the magnet, assembly, or electromagnet. Permanent magnets with high intrinsic coercive force are referred as 'hard' permanent magnets, which usually is associated with high temperature stability. Its value is measured in oersteds and corresponds to zero intrinsic induction in the material after saturation. The intrinsic ability of a material to resist demagnetization. The demagnetizing force, measured in oersteds, necessary to reduce observed induction, B to zero after the magnet has previously been brought to saturation. The B r represents the maximum magnetic flux density output of this material without an external magnetic field. The point on the demagnetization curve where the product of B and H is a maximum and the volume of magnet material required to project a given energy into its surroundings is a minimum. It is measured in mega gauss-oersteds, MGOe.Ī value of induction at the point at which the hysteresis loop crosses the B axis at zero magnetizing force. The strength, in gauss, of the magnetic field created by the magnet.Īlso known as the magnet strength or grade. Products returned as matches will meet all specified criteria. User may specify either, both, or neither of the 'At Least' and 'No More Than' values. Conditions such as the size and shape of the parts, the surface conditions, motion, vibration, friction, holding angles, and machining forces will affect the holding force of the magnet and should be factored into the magnetic circuit design The force the magnet is capable of holding under ideal conditions. Leaving all boxes unchecked will not limit the search criteria for this question products with all attribute options will be returned as matches. Other unlisted, specialized, or proprietary configuration.Īll products with ANY of the selected attributes will be returned as matches. The permanent / electromagnet combination provides for safely holding the load, even if power is accidentally removed from the magnet. Common configurations are dipole, quadrupole, or sextupole electromagnets. Laboratory electromagnets are typically used in labs for research. These magnets are often used in process manufacturing, material handling, or for scrap yard use. Suspension magnets are powerful magnets for lifting heavy and/or odd shaped magnetic materials. Standard units are not intended for handling scrap or small parts. These magnets may be used when the magnet has only partial contact with the surface, to handle an irregular shape, or when it must work through an air gap.Įlectromagnets intended to lift solid, compact material such as billets, steel plate, bars, forgings, etc.

Unlike permanent magnets, electromagnets use electricity to generate a magnetic field. Additionally, the magnetic field of electromagnets can be turned on or off as needed.įlat-faced magnets are used when the entire face of the magnet is in direct contact with the surface, and the surface is smooth and flat.Īlso called bi-polar electromagnets, parallel pole magnets have two widely spaced poles, which allow the magnetic field to have a greater reach.

Electro magnet