Magnetic heavy handling devices. Deep Field Systems.
Most of known magnetic heavy handling devices are designed and applied for handling solid steel objects, such as plates, slabs, cylinders, etc. With such objects magnet is able to realize maximum magnetic attraction because the object itself has quite low magnetic resistance and can absorb practically most of the generated magnetic flux.
But in many common magnet applications, objects to be handled are not solid, they often consist of several, even different parts to be handled together.
The best example here is magnetic steel scrap handling, where what we mostly know is only the average scrap density. The other example is magnetic handling of different bundles, coils, stacks, etc. In all above examples the object to be handled is not solid and consists of many, often different, steel parts, divided by different air gaps.
Today most of heavy magnets applied for handling not solid objects have the same structure and the same geometry as magnets designed for handling solid objects. As a result such magnets are not effective – they apply much more energy than necessary (in case of electromagnetic systems), are extremely expensive (in case of permanent magnetic systems) or do not work at all (in case of electro-permanent systems).
In 2007 Dr. Vernikov Magnetics (DVM) has started development of special deep field magnetic systems for handling not solid objects. We have concentrated mostly on scrap and bundles handling and started with electromagnetic solutions as most popular for these applications.
Deep Field Scrap Handling Electromagnets.
Based on computer modeling, multiple prototyping and field tests, DVM has created new generation of electromagnetic systems for scrap handling. We have changed the magnetic circuit so that magnetic flux penetrates into scrap more than 35% deeper compared with traditional systems.
This was achieved by changing the volume rate between electromagnet’s active coil and steel poles and also by changing the geometry of magnet active surface pole pitches. The main magnetic circuit of electromagnet was changed so that also the side parts of the magnet became active and able to attract scrap.
All above allowed us increasing magnetic scrap handling productivity more than 25%, compared with traditional magnets within the same volume and same energy consumption. At the same time we use less active materials and new cost effective production technology. Today our approach allows designing and producing the world most effective and competitive special deep field scrap handling electromagnets, based on every client’s concrete duty cycle and application conditions.
In 2009 we have designed and produced the world largest deep field scrap electromagnet 3.500mm diameter. Today our R&D facilities are testing first electro-permanent deep field magnets, which we plan to introduce as serial product in 2012.