Electro-Permanent Suspended Separators / Electric Suspended Magnets

Over_the_Belt_Suspended_Rectangular_Magnet_Separator Stearns' powerful Suspended Separation Magnets provide the big pull for fast moving burdens. Patented electromagnet designs offer the most effective ferrous metal removal for your product. These magnets develop a powerful, broad and deep-reaching magnetic field that thoroughly probes and efficiently removes tramp iron from materials in process. They’re lighter, smaller, more powerful, and run cooler than comparable competitor models. These features are possible because of Stearns’ isogeometric design and construction, putting efficient coil cooling together with a deep, concentrated magnetic field in an extremely compact enclosure, resulting in powerful metal removal.

Proper Magnet Selection Ensures Satisfaction

Combination Units Provide Extra Protection

Suspended Magnet Separator Application Form (Excel form or PDF version)

Stearns over-the-belt magnets can be suspended over belt conveyors or over non-magnetic sections of vibrating feeders, oscillating conveyors, chutes and screens. Stearns' magnet circuit design minimizes flux leakage, and gives you more usable magnetic power than ordinary permanent suspended magnets, to safely handle hotter materials than electro magnets. Three styles are available, in standard widths for conveyors ranging from 16" wide to 84" wide:

Standard Over-the-Belt Applications In-Line Applications Cross-Belt Applications

Typical Applications

Reliable Tramp Iron Removal from Fast-Moving Conveyors in Processing Industries for:
- Purification of Product or Ingredient for Higher-Quality End Products (e.g., foundry sand, glass cullet, grain, food products and chemicals)
- Protection of Processing Equipment (e.g., crushers, pulverizers, conveyor belts and screens)
- Reclamation of Ferrous or Non-Ferrous Material (e.g., open hearth and blast furnace slag, incinerators and garbage plants)
- Salvage of Valuable Items (e.g., tools, cutter bits and machinery parts)

Features

Deep, powerful magnetic field maximizes ferrous recovery
Available in widths from 16" to 90"
Easy to install, without modifying existing lines
In-line and cross-belt separators allow automatic discharge of collected tramp iron into suitable receptacles
Rugged, 100% duty cycle design and construction
Low maintenance, easy installation and operation
Operates in hazardous environments
High efficiency means energy cost savings
Special magnet features and options:
- Inspection and access doors
- Trolley suspension
- Cable suspension
- Steel clad belts (Flex-Tuff)
- Zero-speed switches
- Belt alignment switches
- Air-cooled or oil-cooled magnetics
- 2-Pulley and 4-Pulley construction
- Custom painting
- Totally-enclosed, removable dust-proof housings for self-cleaning magnets

View catalog pages on Electric Suspended Magnets ( PDF file)

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Proper Magnet Selection Ensures Satisfaction

Suspended Magnet Separator Application Form (Excel form)

The magnetic field configuration of suspended magnets, regardless of make, is deeper at the center than at the sides. Thus, a magnet narrower than the width of the belt can pull some tramp iron from the belt center but leaves little or no protection at the sides. In order to properly blanket the entire width of material being conveyed, it is generally desirable to use a magnet as wide as the conveyor belt.

Selection of the proper suspended magnet requires careful evaluation of all operating conditions and separation objectives. These factors include magnet mounting position, burden depth, bulk density of material being conveyed, belt speed, belt width, and the shape and size of tramp iron to be removed.

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Combination Units Provide Extra Protection

A Stearns combination unit provides an extra measure of protection from tramp iron or increased product cleaning.

A typical double-pass system in a foundry sand cleaning system would incorporate a cross-belt separator (to provide the initial tramp iron removal) and a PM magnetic pulley at the head of the conveyor (to remove any remaining fine splatter or shot).
Another type of dual protection used in mining operations utilizes a parallel-mounted (in-line) separator or cross-belt separator and a high-sensitivity metal detector: the magnet would remove the steel and iron objects while the detector will detect the presence of damaging, non-magnetic metals such as manganese steel, stainless steel and brass.

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Available Options

2-Pulley Low-Profile Self-Cleaning Magnet

Stearns has engineered this magnet for ferrous removal applications with restricted ceiling clearances. The stainless steel cleated rubber belt easily carries away and discharges tramp metal from fast-moving conveyors. The rigid Channel-Beam construction and 100% magnet duty cycle design make this electromagnet excel under heavy continuous operation.

Self-cleaning magnet
Compact design
Ideal for restricted ceilings
Oil-cooled or air-cooled models

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4-Pulley Space-Saving Self-Cleaning Magnet

st_color18_4pulley_sep.jpg (253820 bytes) Stearns' 4-pulley design has a stainless steel cleated rubber belt that easily carries away large tramp metal from fast-moving conveyors. The very compact design and heavy Channel-Beam frame construction make this a versatile electromagnet for many over-the-belt applications.

Self-cleaning magnet
Very compact design
Oil-cooled or air-cooled designs

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Dust Housing Option

Dust_Housing_Option Optional total enclosure is a requirement for high dust and hazardous environments. Stearns' housing design provides magnet coverage without sacrificing performance or space.

Access doors for easy maintenance

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Armor-Clad Flex-Tuff Belt

flex_tuff_option_otb.jpg (279059 bytes) This optional belt is 97% protected with Stearns' exclusive stainless steel interleafed wear plate design. This feature provides protection and prolongs long belt life in heavy-duty applications where ordinary rubber belts can't take the abuse.

Ultimate belt durability
Maximum belt width protection

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To get a customized solution for your specific application, complete a Suspended Magnet Separator Application Form (Excel form or PDF version) contact the factory, or talk with the Stearns rep / dealer nearest you.