Permanent Magnet Head Roller
At A Glance
Protection: Primary
Feed Type: Conveyor
Material Type: NdFeB
Cleaning Type: Automatic
Installed at the discharge end of flat or troughed belt conveyors, permanent magnetic head rollers are designed to remove tramp iron that cannot be removed by either a plate or overband magnet because of the conveyed product depth. For the best possible protection against tramp metals use permanent magnetic head rollers in conjunction with plate or overband magnets. Permanent magnetic head rollers are available in two magnetic materials: standard strength, which uses ceramic magnetic material; and high strength, which uses high intensity Rare Earth magnetic material. The latter is the most popular due to its high contamination removal efficiency.
Benefits
Materials
• No running costs
• Allows difficult products to be screened
Magnetic Material
Rare Earth Neodymium Iron Boron - (NdFeB)
• High volume capacity
• Designed for 24 / 7 operation
Cover
304 grade stainless steel
• Removes large to medium sized contamination
End Cheeks
Painted mild steel
Shaft
Mild steel
Performance
Cleaning
Magnetic Performance 3,000 Gauss Performance reading On roller surface* Magnetic field depth 200 Series = 75mm*, 300 Series = 100mm* 400 Series = 125mm* Temperature -40°C / +80°C
The unit is continuously self cleaning. Contamination enters the roller’s magnetic field where it is attracted and held firmly on the belt. When it reaches the underside it passes out of the magnetic field and is discharged separately from the conveyed product, which continues on its normal trajectory.
Suitability
Options
Suitable Products
All conveyable products, wood chip, biomass, recyclables, aggregates, coal etc
• Ceramic magnetic material
• Rubber lagged diamond cut cover
• Crowned detail
• Protective paint coating
Suitable Location
Conveyor head roller
*Mild steel test piece 5mm x 25mm long
*Excluding rubber lagged units
Eclipse Magnetics Innovative Magnetic Solutions
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