Large, thin steel sheets are notoriously difficult to lift and handle, especially from a stack. Finger and other injuries often result when personnel attempt to first separate, then lift, large sheets. Conventional lifting magnets are frequently not suitable and electromagnetic systems become large and heavy, using up valuable crane capacity.
Serpent and Dove® has improved its recently introduced Mag-Frame Steel Sheet Lifter. The patented system uses permanent magnets requiring no electric power and will lift one sheet at a time from a stack. It is suitable for steel, including checker-plate or perforated plate, up to 6 mm thick. A heavy duty model will handle 8 to10 mm sheet.
It is most suitable for steel sheet larger than 1.2 metres wide x 2.4 metres long and a single Mag-Frame can be up to 6 metres in length. Specially engineered, shallow-field magnet elements are sized for the sheet thickness and type in order to provide a three to one safety factor. The sheet release mechanism can be by manual operation of a conveniently positioned lever, or can be fully automated with pneumatics. Mag-Frame is light-weight, low profile, simple and safe to use with either an overhead crane or on a forklift.