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Overhead Permanent Magnet

Dings Overhead Permanent Magnets

Overhead Permanent Magnetic Separators are non-electric and are suspended over conveyor belts or vibratory feeders. No external power source is required to generate the magnetic field. Ferrous tramp metal that is part of the material burden passing under the overhead magnet is attracted to the magnet face during operation. Any ferrous metal that is attracted to the magnet face is either automatically and continuously removed with our self-cleaning magnetic separators or held in place, until manually removed with our stationary models. Our self-cleaning magnetic separators are designed with a non-magnetic laser cut stainless steel frame. This prevents ferrous metal from collecting on the frame and in between the belt and magnet face.

Lifetime Warranty on Magnetism for Overhead Permanent Magnets

We designed our overhead permanent magnets with patented Dings Flux Control (DFC) Circuit Design. DFC eliminates internal leakage between magnetic poles and improves separating performance. The overall strength of the magnet field is stronger, extended deeper and pattern is more uniform.

Dings Flux Control (DFC) Circuit Design

Dings Flux Control (DFC) Circuit Design was a breakthrough in the design of Overhead Permanent Magnetic Separators. It eliminates internal leakage between magnetic poles and improves separating performance.

Other “conventional” magnetic circuits contain air or filler material between the magnetic poles; this allows flux (magnetism) to leak out and be wasted. In the DFC  circuit design, blocking magnets are positioned in the spaces between the magnetic poles.

The overall strength of the magnet is improved in three ways:

  1. The magnetic field is stronger
  2. The magnetic field extends deeper
  3. The magnetic field pattern is more uniform

Dings Company offers a wide range of permanent overhead magnets, ensuring that your magnet will be sized properly for your specific application needs.

Self-Cleaning Magnetic separators

Overhead Permanent Magnet

Self-Cleaning Magnetic Separator models have a belt that continuously travels across the face of the magnet body to automatically discharge attracted ferrous metal away from the magnetic zone. These powerful models come equipped with a heavy-duty rubber belt to remove ferrous metal from the material stream. Other cleat styles and sizes are available for use in different ferrous recovery applications. To drive the magnetic belt, a direct gear motor is used and also available in special voltages.


  • Guaranteed Lifetime Warranty on magnetism
  • Patented Dings Flux Control (DFC) Circuit provides a stronger, deeper and more uniform magnetic field.
  • Unique construction – smaller, lighter magnet for a given strength than any other in the industry.
  • Full stainless-steel bottom plate with extra stainless-steel center wear plate in the main impact area provides a longer life.
  • IP56 AGMA Class II Motor
  • Non-endless multi-ply (heavy duty) rubber belt with cleats hot vulcanized to base for superior adhesion.
  • 8-point mounting lugs – reduces installation time
  • Inline and Crossbelt mounting positions
  • Removeable crossbelt stainless-steel deflector
  • Stainless-steel frame construction – minimizes cleaning and extends belt life.


Overhead Permanent Magnetic Separator Dust Cover

Dust Cover

Totally enclosed, dust-tight constructed enclosure allows integration into dust collection systems.

Overhead Permanent Magnet Deflector

Crossbelt Deflectors

The crossbelt deflector is standard and mounted to the magnet box perpendicular to the conveyor. It is used to prevent conveyed material from getting jammed between the magnet box and the self-cleaning belt.

Pulley Guards for Dings Overhead Permanent Magnetic Separator

Pulley Guards

The pulley guard is a safety option that prevents access to the rotating pulleys, ensuring safety of personnel.

Pinch Point Guards for Overhead Permanent Magnet

Pinch Point Guards

Pinch point guards prevent access to a point on the equipment where personnel can get caught in between moving parts.

Belt Guide Rollers for Dings Overhead Permanent Magnet

Belt Guide Rollers

They assist in the prevention of belt damage due to poor belt tracking. They are typically used when magnets are suspended at a significant angle.

Turnbuckles on Overhead Permanent Magnetic Separator


Facilitates the final adjustment of the magnet’s suspension height.

Zero Speed Switch for Overhead Permanent Magnetic Separator

Zero Speed Switch

This motion control safety sensor signals when the magnetic separator belt has stopped moving.

Explosion Proof Motor for Permanent Overhead Magnetic Separator

Explosion Proof Motors

Explosion proof motors are UL certified electric motors that meet the hazardous locations needs of an application.

Hydraulic Motor for Dings Overhead Permanent Magnet

Hydraulic Motor

An option to replace the electric motor for applications where electric power isn’t available or feasible.

Cladding for Dings Overhead Permanent Magnet

Dings Armor-Clad Dura-Belt

A metal clad belt developed by Dings Co. Magnetic Group as a long-life magnet cleaning belt for installations where many sharp-edged iron objects are encountered—especially useful when recycling concrete with rebar. Continuous impacts from sharp steel can cause rapid wear on standard cleaning belts. The entire impact area on a ‘Durabelt’ is protected with an armored barrier of thick stainless-steel pads. The self-cleaning belt travels continuously around the separator, automatically discharging the attracted ferrous. Individual plates can be easily replaced in the field, saving costs on belt replacement and reducing downtime.

3 Inch Rubber Cleats for Dings Overhead Magnet

3-Inch Rubber Cleats

Vulcanized cleats typically used in recycling applications where large ferrous metal is better carried away by 3-inch high cleats versus our standard 1-inch high cleats.

High Temperature Belt

These belts are designed to withstand temperatures of up to 200ºF and are certified to meet CSA (Canadian Standards Association) standards for use in Canada.

Special Motor Voltages

Special motor voltages are available to meet any specific application requirements.

Custom Designs

Our magnetic solutions experts can custom design any equipment to meet your specific application needs.

Stationary Magnetic separators

Dings Stationary Overhead Permanent Magnet

Stationary Magnetic Separator models are maintenance-free with no moving parts (no lubrication, no tightening or replacing of hardware needed). Ferrous metal is pulled out of the material stream to the face of the overhead permanent magnet. Any ferrous metal that is attracted to the magnet face is held in place until manually removed. Designed specifically for easy installation; this magnetic separator comes with a 3-point suspension system (4-point suspension available) that includes two cables and one turnbuckle connected to a common bull ring. Adjustment of the magnet suspension angle is easy and only involves adjustment of the turnbuckle. There is no measuring, shortening, lengthening or cutting of cable required. 


  • Guaranteed Lifetime Warranty on magnetism
  • Patented Dings Flux Control (DFC) Circuit provides a stronger, deeper and more uniform magnetic field.
  • No power supply for magnet
  • Maintenance-free design


Overhead Stationary Permanent Magnet with 4 Lugs

4-Point Suspension System

Additional suspension points allow for more adjustment options.

Overhead Permanent Sling Magnet with Sweep Arm

Sweep Arm Assembly

The angular stainless steel sweep arm is used to avoid the safety hazard presented when cleaning the magnet by hand.

Custom Designs

Our magnetic solutions experts can custom design any equipment to meet your specific application needs.

Inline vs. Crossbelt Mounting Positions

Dings overhead magnets are available in two suspension types: Inline and Crossbelt

Inline Mounting Position

Inline orientation is a more efficient
mounting position than Crossbelt over the conveyor. With an inline mounted magnet, as the material is discharged from the conveyor it becomes airborne. This liberates the tramp metal making it easier to separate because it doesn’t need to be pulled through the material burden. This along with its lower required suspension height sometimes
permits the use of a smaller more economic magnet in comparison to cross-belt over the conveyor orientation. Inline Magnets are used in conjunction with a splitter to ensure
proper separation between burden material and tramp metal.

Crossbelt Over Conveyor

In a cross-belt over the conveyor belt mounting position the magnet is installed at a right angle to the travel direction of the material on the belt. Tramp metal is collected by the overhead magnet and discharged by the magnet’s self-cleaning belt into a collection bin along side the conveyor. This orientation is commonly used when the magnet is being installed in an easily accessible area on an existing conveyor.

Crossbelt Over Head Pulley

Several factors make the cross-belt over the head pulley orientation a more efficient option than mounting over the belt. The first one is the conveyor belt flattens as it reaches
the pulley allowing for a reduced suspension height. Secondly, as the material leaves the conveyor it becomes airborne, making it easier to separate because the tramp metal doesn’t need to be pulled through the material burden. These factors also
sometimes permit the use of a smaller more economic magnet. Magnets installed in this position are often used in conjunction with a splitter.