Technology

STEINERT permanent suspension magnets remove iron from wood chips before they are burnt or reused. STEINERT suspension magnets can remove interfering iron parts such as nuts and bolts from coal, coke, ore and other minerals – at extremely high belt speeds, large working distances and high burden depth. Large models of the active air-cooled types, UME LS and UME LR, are most often found in these applications. The residual fraction is frequently subjected to further value-added processing by means of the STEINERT non-ferrous metal separator.

The magnetic forces in STEINERT suspension magnets can be generated by permanent magnets (P) or electromagnetic coils (E) as required. STEINERT electric suspension magnets (Series UME, AME) possess a high power density and high temperature resistance thanks to their use of ANOFOL anodised aluminium strip – also a STEINERT product, in the electromagnetic coils.

What’s more, pole plates are integrated in the housing to concentrate the magnetic flux. Along with the electromagnetic coils, the cross-section, structure, shape and size are responsible for STEINERT electromagnets’ good sorting characteristics. The result is that the electric top belt magnetic separator is extremely effective despite its compact size, low weight and low power consumption. Steinert consistently uses air-cooled, “dry” electromagnetic top belt suspension magnets without oil filling. The compact, rectangular coil is insensitive to temperature and fills almost the complete volume of the magnetic separator. The heat transfer to the outer wall is a maximum. Other magnetic separators mostly use round coils, which scarcely fill the magnetic separator housing and are filled with oil. The oil is there for heat transport and is subject to the risk of leakage and frequently requires external cooling and changing. Permanent magnetic top belt magnetic separators from STEINERT (Series UMP, AMP) use strong permanent magnets to generate their magnetic fields. They represent today’s state of the art. As is the case for electrical top belt magnetic separators, the shape and size of the magnetic field in the separation volume is also decisive for these units. The special design and manufacturing principles of a Steinert permanent magnetic top belt separator make it possible to individually adapt the magnetic field to the specific application. This enables multiple-pole separators to achieve levels of separation performance which, until recently, were exclusively obtainable using electromagnetic suspension magnets. The self-cleaning permanent-magnetic suspension magnet UMP is capable of considerably improved discharge characteristics for light materials and prevents iron parts from permanently adhering thanks to the use of large-area stainless steel side panels. In general, these self-cleaning suspension magnets are distinguished by their ease of servicing. In this way, access and infeed protection are combined to the greatest extent possible. Geared motors, hydraulic motors or electric motor pulleys can be used at any time.