OVE / OVP self-cleaning overbelt magnets are ideal for applications with substantial quantities of tramp iron or where manual cleaning access is challenging. The separator attracts tramp iron and carries it out of the magnetic field, with ejection performed by a discharge belt running around the magnet.
MAG Magnetics self-cleaning over-belt magnets consist of:
• Magnetic box
• Supporting structure for the discharge belt, including drive and tail drums
• Two additional idlers mounted on self-aligning bearings
• Geared motor to drive the discharge belt
• Device for tensioning the discharge belt on the fixed axle of the tail drum
• Suspension lugs, turnbuckles, and suspension wire ropes
Important Factors for Selecting Overbelt Magnet Separators:
• Material size, type, and density
• Shape and minimum size of tramp iron
• Maximum material lump size
• Percentage of tramp iron in the material
• Conveyor belt/chute width
• Bulk material capacity (t/hr or m³/hr)
• Details of machinery or equipment to be protected
• Conveyor belt speed
• Angle of trough idlers
• Head pulley diameter and material (for in-line installations)
• Ambient temperature
• Available AC power supply
Product Range
MAG Magnetics offers a range of standard electrical OVE series and permanent OVP series overbelt magnetic separators suitable for belt widths up to 2500 mm and operating heights up to 950 mm. Electrical over-belt magnets can be chosen as “air-cooled” or “oil-cooled,” with oil-cooled magnets generally being shorter and lighter than their air-cooled counterparts.
OVE Electrical Magnet Separators:
• Comply with VDE 0580 standards
• Require DC supply for coil excitation
• Use DC rectifiers and three-phase motors rated at 415V/50Hz, with options for other voltages and frequencies
• Operate within ambient temperatures of -20°C to +40°C
For extraordinary operating conditions—such as high ambient temperatures (over 40°C), high humidity, chemically aggressive atmospheres, severe dust pollution, wet and sticky materials, very large tramp iron objects, or hot materials custom-designed magnets are recommended.
OVP Permanent Magnet Separators:
• Powered by ceramic strontium ferrite magnets
• Use three-phase motors rated at 415V/50Hz, with options for other voltages and frequencies
Advantages of OVP Magnets:
• No rectifier required
• No risk of coil burnout
• No electrical cabling needed
• No power consumption
• No operational costs
• No maintenance required
• No risk of failure
• Easy to mount
• Uniformly powerful
• Cost-effective
• Retains magnetic strength even during power outages
• Moisture-resistant, anti-corrosion, and flameproof
• Fully stabilized and non-deteriorating
