Overview of Plate Magnets

Plate magnets, also known as magnetic plates, are heavy-duty industrial magnetic separators engineered to intercept tramp ferrous metal in high-volume or abrasive material streams.

Unlike tube magnets that are situated directly within the product flow and can potentially restrict movement, plate magnets provide a completely non-intrusive separation alternative. These units are typically installed flush against the bottom of gravity-fed chutes or spouts, or suspended directly above conveyor systems.

This mounting configuration allows the magnetic field to penetrate through the material burden to extract detrimental contaminants—such as nuts, bolts, and nails—without physically obstructing the product stream. Consequently, they are the ideal engineering choice for handling bulk solids prone to bridging or clogging, including wood chips, mining ores, and fibrous textiles.

Plate Magnets

Customizing Magnetic Circuits for Optimal Magnetic Reach

The efficiency of a plate magnet is fundamentally influenced by the strategic distribution of its magnetic field. Recognizing that every processing environment presents unique variables, we customize the internal magnetic circuit to address the specific magnetic reach required by your material flow depth and installation parameters.

For applications where high surface-level intensity is a priority, configurations such as the multipole grid circuit are often utilized. This design is engineered to concentrate magnetic flux directly at the interface of the plate, providing a high-gradient capture zone intended for shallower material streams.

In scenarios involving thicker material burdens or high-velocity flows, extending the magnetic reach may be necessary to mitigate the risk of contaminants bypassing the separator. For these more demanding conditions, we can implement advanced configurations such as the Halbach array circuit. As illustrated in our circuit schematics, this specialized design is engineered to project the magnetic field further into the product stream, helping to ensure that ferrous particles are successfully intercepted and held against the plate even in high-volume production lines.

Magnetic Circuit-Plate Magnets-1
Bipolar Circuit
Magnetic Circuit-Plate Magnets-2
Multipole Grid Circuit
Magnetic Circuit-Plate Magnets-3
Halbach Array Circuit

Surface Profiles & Functional Configurations

The flat face (FF) design features a smooth, obstruction-free surface engineered for hygienic food and pharmaceutical sectors. This non-intrusive profile prevents material accumulation during the processing of fine powders and allows for rapid wipe-down cleaning.

For high-velocity gravity flows, the spout type (S) incorporates a physical wedge to create a “magnetic shadow zone”. By shielding captured tramp iron from the continuous impact of the material stream, this configuration effectively prevents wash-off and re-entrainment.

The exposed pole face (EP) utilizes raised steel plates to concentrate magnetic flux for heavy contaminants such as bolts and spikes. This design provides the maximum holding force necessary for low-velocity, heavy-duty applications—including mining and recycling—where captured metal must resist high material burdens.

Plate Magnets Performance Fe vs. Non-Fe Separation

Mounting and Cleaning Configurations

To facilitate integration into existing systems, plate magnets are available with versatile mounting configurations. For enclosed gravity flows, plate magnets are often supplied as hinged, swing-out doors secured by quick-release toggle clamps. This design allows operators to clean the magnetic surfaces efficiently without the need to dismantle any ductwork or housing components.

For open conveyor belts or vibratory feeders, plate magnets feature forged eyebolts for suspension mounting. Positioned directly above the product stream, these plate magnets extract tramp iron from the moving burden while maintaining a completely unobstructed flow path.

Specifications of Plate Magnets

While specialized dimensions are engineered to match unique housing cross-sections, a comprehensive range of standard plate magnet specifications is maintained to facilitate seamless integration into common industrial processing lines. This dual approach ensures both bespoke precision for complex architectures and rapid retrofitting for existing infrastructures.

Standard Type
Standard Type Plate Magnets-Drawing
Item No. Dimension (mm) Unit Weight
B D T
F-FF60 250 175 51 5.7
F-FF120 300 225 76 10.4
F-FF150 450 360 111 19.1
N-FF60 190 125 36 3.7
N-FF120 250 175 46 5.9
N-FF150 330 240 56 10.3
F-EP60 250 175 51 5.7
F-EP120 300 225 76 10.4
F-EP150 450 360 111 19.1
N-EP60 190 125 36 3.7
N-EP120 250 175 46 5.9
N-EP150 330 240 56 10.3
F-S60 250 175 51 5.8
F-S120 300 225 76 10.5
F-S150 450 360 111 19.2
N-S60 190 125 36 3.8
N-S120 250 175 46 6
N-S150 330 240 56 10.4
F: Ferrite | N: Neodymium | FF: Flat face | EP: Exposed pole Face | S: Spout style | L: Can be customized.
Suspended Type
Suspended Type Plate Magnets-Drawing
Item No. Dimension (mm) Unit Weight

(kg)
H A B
SPM18 180 400/500 400/500 123/192
SPM25 250 600/700 600/700 380/517
SPM35 350 800/900 800/900 1064/1346
SPM40 400 1000/1100/1200 1000/1100/1200 1851/2240/2267

Collaborate with Our Engineering Team

From individual replacement plates to integrated magnetic housing assemblies, our technical team is ready to facilitate your specific separation requirements. We provide more than just hardware; we offer engineered solutions tailored to your process integrity.

  • Bespoke Fabrication: Every unit is manufactured to align precisely with your unique system geometries and material flow characteristics.

  • Rapid Technical Verification: To ensure absolute compatibility, we provide same-day technical drawings for engineering approval before production begins.