Electromagnets Specifications on GlobalSpec

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Magnet Type


			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.
	Your choices are...
	Flat-faced Magnet		Flat-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.
	Parallel Pole Magnet		Also called bi-polar electromagnets, parallel pole magnets have two widely spaced poles, which allow the magnetic field to have a greater reach. 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.
	Standard Lifting Magnet		Electromagnets intended to lift solid, compact material such as billets, steel plate, bars, forgings, etc. Standard units are not intended for handling scrap or small parts.
	Suspension Magnet		Suspension magnets are powerful magnets for lifting heavy and/or odd shaped magnetic materials. These magnets are often used in process manufacturing, material handling, or for scrap yard use.
	Laboratory Electromagnet		Laboratory electromagnets are typically used in labs for research. Common configurations are dipole, quadrupole, or sextupole electromagnets.
	Permanent / Electromagnet Combination		The permanent / electromagnet combination provides for safely holding the load, even if power is accidentally removed from the magnet.
	Other		Other unlisted, specialized, or proprietary configuration.
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Strength


	Holding Force		The force the magnet is capable of holding under ideal conditions. 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
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Maximum Magnetic Field		The strength, in gauss, of the magnetic field created by the magnet.
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	Maximum Energy Product, BH_max		Also known as the magnet strength or grade. 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.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Residual Induction, B_r		A value of induction at the point at which the hysteresis loop crosses the B axis at zero magnetizing force. The B_r represents the maximum magnetic flux density output of this material without an external magnetic field.
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	Coercive Force, H_c		The demagnetizing force, measured in oersteds, necessary to reduce observed induction, B to zero after the magnet has previously been brought to saturation.
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	Intrinsic Coercive Force, H_ci		The intrinsic ability of a material to resist demagnetization. Its value is measured in oersteds and corresponds to zero intrinsic induction in the material after saturation. Permanent magnets with high intrinsic coercive force are referred as "hard" permanent magnets, which usually is associated with high temperature stability.
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Physical Specifications


	Power Supply
	Your choices are...
	AC Power		Device requires AC voltage.
	DC Power		Device requires DC voltage.
	Battery Powered		The device is powered by a battery.
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	Lead Length		The length of the electromagnet's lead wires.
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Weight and Dimensions


	Weight		The overall weight of the magnet.
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	Width		The overall width of the magnet, assembly, or electromagnet.
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	Length		The overall length of the magnet, assembly, or electromagnet.
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	Thickness / Height		The overall thickness of the magnet, assembly, or electromagnet.
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	Outside Diameter		The outside diameter of round horseshoe or u-shaped magnets, button / pot, ring / disc, sphere, arc segments, or rotor magnets. Or the diameter of round magnetic separation components or electromagnets.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Inside Diameter		The inside diameter of round ring / disc, button / pot, arc segments, or rotor magnets.
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Features


	Continuous Duty Cycle		Duty cycle is the percentage of total on time over one complete on-off cycle within specific period. For small electromagnets, the specific time period is about 30 minutes for safety. Continuous duty cycle refers to a magnet that can run continuously over this time period.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Removable Pole Caps		The laboratory electromagnet is equipped with removable pole caps for use while storing.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Moisture Resistant Encapsulated Coils		The laboratory electromagnet is equipped with moisture-encapsulated coils for protection against water vapor.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Auto-release		The electromagnet has an auto-release feature that can be programmed by the user.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

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