Permanent Magnetic Overband Separators are designed to eliminate
tramp metal from the product carried by belt, vibratory feeders
or inclined planes.Over bands are mainly used to protect Machine
such as Crushers, Shredders and others, to remove ferrous particles
and purify products ( Industries like Foundries, Coal Mines, Cement
Works, Food, Sponge Iron, Char coal, Glass, Chemical Industries
and Domestic waste recycling Plants.)The
permanent Magnetic Overband Separators are used when an automatic
Removal of ferrous contamination is necessary. If not, fixed Permanent
Suspension Magnets are more suitable.
Five type of Separators Re
designed to operate at a predetermined working gap over the
conveyor : 100, 150, 200, 250 and 300mm.
The speed of the belt , the
nature of the product, its density, its granulometry and the size
of the pieces which have to be extracted are on of the parameters
to be taken into consideration when choosing the type of Overband.
Two U-section pieces are
fixed on the Magnet by Fastening ears and are supporting bearings
of Drums. Drums are equipped with shafts mounted on removable hubs.
All bearings equipped with stakes for tightening the belt.
The belt is driven by a Reduction
Gear Coupled to Electric Motor / Geared Motor by Vee- belts.
The Magnet is made of High
Intensity Stroncium Ferrite Magnets and is guaranteed for the Magnetic
Power through out the life of installation. A Non - Magnetic Stainless
steel Plate is provided to cover the poles of Magnet. There is no
need for any electrical supply or maintenance.
These units can be installed
either inline over the terminal head pulley (Fig - 1. ), or transversal
to the conveyor (Fig - 2). In both cases, it is necessary to foresee
Non- Magnetic products under the Magnetic Field.
The most effective position
is inline (Fig - 1) over the head pulley. The material being conveyed
is in virtual Suspension and Tramp Iron is therefore more readily
Very good results are obtained
by combining a Permanent Magnetic Overband with Permanent Magnetic
Pulley at discharge end.