Design & Build Electro-Magnet to Raise 1 KG weight | Physics ForumsEstablished Magnetic Tools Magnetic Multilifts Magnetool offers Multilifts with improved design, rugged construction, plastic and stainless steel cases available. Permanent Lifting Magnets Magnetool permanent magnet lifts don't need an outside power source or remagnetizing. They are always ready to go to work. Round Lifting Magnets Round Lifting Electromagnets are intended to lift solid, compact material such as billets, steel plate, bars, forgings, etc. Rectangular Lifting Magnets Large rectangular magnets are used for lifting slabs, billets, castings, forgings, thick single plate or a number of plates at a time. Punch Press Feeders These permanent magnet, safety-approved feeder tools are extrememly efficient, with positive pickup and fast release.
Electromagnetic cranes are commonly utilized in lifting and moving various scrap metals. It does not have the mechanical 'pincers' of a regular crane, instead, it has a large flat magnet which draws the metallic materials to it. Using the principle of electromagnetic induction, these large machines are used to handle scrap ferrous metals, such as iron and steel, which can be found in junk yards and recycling plants. Beyond the area of lifting magnetic materials, another use of an electromagnetic crane is that it makes for smooth and safe stops due to its solenoid brakes electrically controlled brakes which can be turned on and off by a solenoid. These brakes are the ones being used on movable bridges as it allows the passage of boats and barges. How The Electromagnetic Crane Works: An electromagnet is a type of magnet wherein the magnetic field is produced by electric current, and the field disappears whenever the current is turned off.
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. The magnetic field disappears when the current is turned off. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron ; the magnetic core concentrates the magnetic flux and makes a more powerful magnet. The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding.
Page 1. Lifting magnets may be electro or permanent, and may be installed and used assingle magnets or as arrangements of multiple magnets. In all of these cases, making an optimum selection of lifting magnet components to handle steel plate and shapes requires a thorough knowledge of the application. The factors that dominate the lifting magnet selection for any specificapplication are Weight, shape, and contact area of the objects to be lifted. Surface conditions of load and magnet.