Billet Lift Magnet

It is one of the indispensable equipment of meltshops. Both permanent magnet and electromagnet can be preferred for billet lifting applications. Thanks to specially developed resins, logs up to 600 ° C can be transported safely.
First of all, they are used in steel mills while taking billets from the cooling grates after the tundish unit. Subsequently, they are preferred for stacking the billets, loading them into vehicles and placing them in the rolling mill furnace feeding units. Magnets used in permanent magnet applications are designed to keep logs 3 times safe. In electromagnetic applications, the safety coefficient is evaluated as minimum 2 (Relevant standard: UNI EN 13155: 2003 + A2: 2009 Lifting Appliances - Safety - Non-fixed load lifters). For example, if 7 pieces of 150 × 150 mm section and 12 meters long logs with a total weight of 15 tons are to be lifted with an electromagnetic system, the magnetic system is designed for a load of at least 30 tons.
Permanent magnet systems that work with the zero drop principle are ideal solutions for billet lifting applications. Even if the electricity is cut or the magnet cables are broken, they do not release the load. Therefore, it is sufficient to catch the load once. In addition, these systems do not require a backup battery unit and therefore no maintenance. Neodymium or samarium cobalt is used in magnet content.

In addition, electromagnets are often preferred in billet lifting applications because of their low cost compared to their alternatives and their ability to add many additional functions. It is used with a backup battery unit within the system in order to prevent the logs from falling in case of power failure.

Considerations When Choosing a Billet Magnet
The place of use of the magnet (Cooling grids, stowage area, vehicle loading, stock area, etc.),
Lifting capacity of the crane where the magnet will be used,
The number, cross-section and maximum and minimum lengths of the logs to be lifted at one time,
Maximum temperature information of billets,
(Magnets can be operated up to a maximum temperature of 600 ° C. At temperatures above 600 ° C, the magnet is not able to catch, as the material loses its magnetic properties).
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