200×200 mm Neodymium Magnetic Grid – Spice Production

The 200×200 mm neodymium magnetic grid is designed to capture ferromagnetic metal particles from dry spices, seasoning blends and suitable powdered ingredients. Equipped with three Ø25 mm neodymium magnetic rods, it provides a magnetic separation point in spice processing lines, particularly after blending and before packaging. Its square, open-grid construction allows dry materials to pass between the rods while suitable ferrous contaminants are retained on the magnetic surfaces.

Technical Specification	Description
Product type	Square magnetic grid
Grid dimensions	200×200 mm
Number of magnetic rods	3 pcs
Magnetic rod diameter	Ø25 mm
Magnetic material	Neodymium (NdFeB)
Grid geometry	Square
Cleaning method	Manual
Main application	Spice production
Suitable products	Dry spices and seasoning blends
Suggested installation	Before packaging
Process stage	After blending
Material flow	Dry powders and granular ingredients
Separation target	Ferromagnetic metal particles
Operating principle	Permanent magnetic attraction
Electrical power	Not required
Primary function	Ferrous contamination control

1. Magnetic Grid for Spice Production

The 200×200 mm neodymium magnetic grid is designed to help control ferromagnetic metal contamination in spice and dry seasoning production lines. Its three Ø25 mm magnetic rods provide surfaces for capturing suitable iron and magnetic steel particles as dry ingredients pass through the grid.

2. Why Magnetic Separation Matters in Spice Processing

Spice production involves mechanical operations such as crushing, grinding, sieving, blending, conveying and packaging. During these processes, ferromagnetic particles may enter the product stream through equipment wear, damaged components or contaminated raw materials.

A magnetic grid provides an additional contamination-control point before the product reaches subsequent processing or packaging equipment.

3. Magnetic Separation Before Packaging

One recommended installation position is after blending and before weighing or packaging. This allows the combined spice mixture to pass through a magnetic separation stage before final filling.

A typical process arrangement is:

Raw Spices → Grinding → Blending → Magnetic Grid → Weighing → Packaging.

4. 200×200 mm Square Grid Design

The magnetic grid has nominal dimensions of 200×200 mm and an open-pass square construction.

This geometry may be suitable for compatible discharge chutes, hopper outlets and packaging-machine feeding points. Actual installation dimensions and available clearance must be checked before mounting.

5. Three Ø25 mm Neodymium Magnetic Rods

The grid contains three neodymium magnetic rods, each with a diameter of Ø25 mm.

These rods provide multiple magnetic capture surfaces while leaving open spaces for the passage of dry spices and seasoning blends.

6. Neodymium Magnetic Technology

The magnetic system uses permanent neodymium-iron-boron (NdFeB) magnets.

These magnets generate a magnetic field without continuous electrical power. Ferromagnetic particles passing sufficiently close to the rods can be attracted and retained on their surfaces.

7. Working Principle of the Magnetic Grid

Dry spices pass through the spaces between the magnetic rods.

Suitable ferromagnetic particles are attracted toward the magnetic surfaces, while the remaining ingredients continue through the grid.

The actual separation performance depends on the magnetic properties of the contaminants and the operating conditions.

8. Sources of Metal Contamination in Spice Lines

Ferromagnetic contamination may originate from grinding equipment, worn mechanical parts, damaged steel components or incoming raw materials.

Examples include small iron fragments, carbon steel particles, magnetic wire fragments and particles released from conveying equipment.

9. Ferromagnetic Metals That Can Be Captured

The magnetic grid is intended to capture suitable ferromagnetic contaminants, including iron and magnetic carbon steel particles.

Capture capability varies according to particle size, shape, magnetic response and distance from the rod surface.

10. Metals That Are Not Reliably Captured

Conventional magnetic separation does not reliably remove non-ferromagnetic metals such as aluminium, copper and brass.

Certain stainless steel grades may also exhibit insufficient magnetic response.

The magnetic grid should therefore not be described as a system capable of removing every type of metal.

11. Applications in Ground Red Pepper Production

Ground red pepper may pass through grinding, conveying, blending and packaging stages.

A magnetic grid can be considered at a suitable dry-product transfer point to help capture ferromagnetic particles before packaging.

Product moisture and flow behaviour should be evaluated.

12. Applications in Black Pepper Processing

Ground black pepper can be processed through a magnetic grid where the material flow and installation geometry are suitable.

The magnetic rods provide a passive contamination-control stage without requiring electrical power.

13. Applications in Cumin and Other Ground Spices

Cumin, ground coriander and similar dry spices may be suitable for magnetic separation when their flow characteristics allow passage between the rods.

Particle size, powder cohesion and production capacity should be considered when selecting the installation position.

14. Applications in Mixed Seasonings

Seasoning blends often contain several powdered or granular ingredients.

Installing a magnetic grid after blending allows the combined material stream to pass through a common magnetic control point before weighing or filling.

15. Magnetic Separation After Grinding

Grinding equipment may produce ferromagnetic wear particles during operation.

Where the process design permits, a magnetic grid can be installed downstream of the grinder to capture suitable particles before they enter subsequent production stages.

16. Installation After Blending

Positioning the magnetic grid after the blending unit is one of the principal applications of this model.

A possible arrangement is:

Blender → 200×200 mm Magnetic Grid → Packaging Hopper → Filling Machine.

This provides an additional magnetic control point for the finished dry spice blend.

17. Installation at Hopper Outlets

The square magnetic grid may be considered for compatible hopper outlets and gravity-fed discharge points.

The hopper geometry, available mounting space, material bulk density and required throughput should be checked before installation.

18. Installation at Packaging Machine Inlets

A magnetic grid positioned upstream of a packaging machine can help capture suitable ferromagnetic particles before the product enters the filling stage.

The installation must maintain adequate material flow and allow safe access for cleaning.

19. Open-Grid Design and Product Flow

The three-rod construction leaves open passages between the magnetic rods.

This arrangement supports the movement of suitable dry products, but it does not guarantee unrestricted flow.

Fine, cohesive or moist powders may accumulate around the rods depending on their characteristics.

20. Effect of Spice Particle Size

Particle size is an important consideration when selecting a magnetic grid.

Coarse ingredients require adequate clearance between the rods, while fine powders may behave differently depending on moisture, cohesion and bulk density.

The grid should be evaluated using the actual product characteristics.

21. Effect of Moisture and Powder Flowability

Moisture can change the flow behaviour of ground spices and seasoning mixtures.

Products with high cohesion or a tendency to bridge may accumulate at the magnetic rods and reduce the available passage area.

The suitability of the grid should therefore be assessed for the specific material.

22. Effect of Product Flow Rate

The speed of the product stream affects the time ferromagnetic particles spend near the magnetic rods.

At higher flow rates, some particles may have less opportunity to approach the magnetic surfaces.

The grid dimensions and actual production capacity must be evaluated together.

23. Why Are Three Magnetic Rods Used?

Three magnetic rods provide a combination of magnetic capture surfaces and open passages within the 200×200 mm grid.

Increasing the number of rods may improve magnetic coverage but can also reduce the free-flow area.

The appropriate configuration depends on the product and separation requirements.

24. Magnetic Grid Versus Metal Detector

Magnetic grids and metal detectors perform different functions.

A magnetic grid physically captures suitable ferromagnetic particles. A metal detector electronically identifies detectable metal contamination.

Depending on the production requirements, both systems may be used as complementary contamination-control measures.

25. Manual Cleaning Procedure

The magnetic grid is designed for manual cleaning.

Before cleaning, the production line must be safely stopped and secured against unintended restart.

The grid can then be removed from its installation position, and accumulated ferromagnetic particles can be cleaned from the magnetic rod surfaces using an appropriate method.

26. Cleaning Frequency and Maintenance

Cleaning frequency depends on the amount of ferromagnetic contamination, production volume, operating hours and material characteristics.

During initial operation, more frequent inspections can help establish a suitable cleaning interval.

Regular removal of accumulated metal particles helps maintain access to the magnetic capture surfaces.

27. Selecting the Correct Magnetic Grid for Spice Production

Selecting a magnetic grid requires consideration of the product type, hourly throughput, installation opening, particle size, moisture, flow direction, contamination characteristics and cleaning accessibility.

The 200×200 mm dimensions and three-rod configuration alone are not sufficient to confirm suitability for every production line.

28. Magneteksan Magnetic Separation Solutions for Spice Processing

Magneteksan develops magnetic separation solutions for spice processing, dry seasoning production and other powder-handling applications.

The 200×200 mm neodymium magnetic grid with three Ø25 mm rods can be evaluated as a ferromagnetic contamination-control point after blending and before packaging.

Alternative dimensions, rod configurations and customised mounting arrangements may be considered according to the requirements of each production facility.

Contact Magneteksan for technical consultation or a customised quotation for your spice production line.