Magnetic cranes are referred to a special type and designed for lifting and transporting ferromagnetic materials (scrap metals, chips, sheets, molds for casting and so on). These cranes are equipped with cargo electromagnets, hung on a hook suspension or traverse (on a floppy or hard suspension) located in the longitudinal or transverse direction of the bridge.
Magnetic cranes production is a prerogative of large scale businesses: the United Kingdom example is Granada Material Handling, a prosperous company with 14 years of track record, focusing on production, as well as lifting equipment inspection and lifting equipment services. The company’s pipeline gives birth to a variety of magnetic equipment types: here is a specifications breakdown (approximate data, the average values and serial production machines are considered).
- Lifting capacity: 5 to 40 tons.
- Lifting speed: 14-20 m/min.
- Trolley crane speed: 70-120 m/min.
The most common among these cranes are the systems with single wall beams and auxiliary farms, as well as double-girder box-like structure with high resistance to fatigue.