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ORTON CIRCULAR LIFTING MAGNETS are extremely convenient and economical and find
wide application in handling different kinds of scrap such as pig-iron, steel-turnings, ingots, slabs, cut
pieces of plates, channels beams etc.
Lifting capacity of the magnet depends upon the size of magnet, power rating, shape and size and typical bulk density of scrap material, amount of the load in direct contact with pole-faces, storagedistribution and piling of scrap, temp. of scrap material and above all the skills of the crane-operator. To achieve optimum lifting capacity and the overall efficiency of the magnet it is strongly recommended that the magnet is allowed to properly rest on the scrap before switching 'ON' the magnet. Lifting
capacity of the magnet is strongly influenced by air gaps between the loose pieces of scrap. Therefore, the circular lifting magnets have larger diameter to overcome the effect of air-gaps introduced by loose scrap. Lifting capacity is also reduced drastically if the scrap material is highly porous or it contains high percentage of carbon as the magnetic property reduces due to high carbon content. |
MAGNET BODY :- The Magnet body is designed so as to generate optimum magnetic field and at the same time to provide the most efficient magnetic circuit, keeping the magnet weight to the minimum, without loss of performance making these magnets most suitable for attaching to the mobile cranes in the scrap yard. The magnet body is fabricated from high permeability low carbon steel for minimum leakage and maximum magnetic lifting & holding efficiency with utmost toughness. Heat treated fully
annealed center pole, integrated outer pole, terminal box, and extra heavy duty lifting lugs are parts of the magnet body. Bumping plate of SS 304/Maganese steel is provided to withstand the great impact caused due to lifting of heavy metal pieces.
CENTER POLE :- This is casted from high permeability low carbon steel for minimum leakage and maximum lifting capacity.
COIL :- The coil is of Copper or Aluminum material and is designed for 'H' class insulation. The coil is insulated from the body by high quality epoxy compound having excellent thermal properties so as to withstand high temperatures.
MAGNET CHAIN :- The standard 3 legged alloy steel chains for maximum safety and life with common bull ring has been designed to suit all normal duty loads as well as for extra heavy lifting such as slab handling is provided.
DUTY CYCLE :- The permissible relative duty cycle is 50% i.e. 5 minutes ON and 5 minutes OFF in 10 minutes.
OPERATING VOLTAGE :- This can be made available from a mains of 415/440 \I, 3 ph, 50 Hz. A.C. through a transformer, rectifier housed in a Control Panel. The magnets operate on 220Vor 11 OV DC.
MAGNET ACCESSORIES :
Cable Reeling Drum :- ORTON make spring operated CRD's find wide applications in supplying power to the lifting magnets. The selection of the CRD's depends on the magnet KW and height of lift. These CRD's are provided with slip rings and carbon brush with holder of adequate rating.
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