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Round lifting magnets are mainly used to handle scrap iron and other heavy iron items. They have high lifting capacity and are able to handle tons of waste continuously. These magnets feature high quality windings and are made from aluminum strips with the highest insulation rating, so they can withstand high temperatures and are very durable.
link:https://www.kinocranes.sg/electric-hoist/electric-hoist-by-capacity/1800mm-diameter-electric-magnet.html
1800mm Diameter Electric Magnet | Kenancranes