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Bulgur Wheat Packaging Hopper Grid Magnet – 350×350 mm Ø25×7 N35 Neodymium 10,000 Gauss
General Features
- Designed for use in bulgur wheat production and packaging lines.
- Helps capture ferromagnetic metal contamination before weighing and packaging.
- Features a 350×350 mm square construction.
- Contains 7 Ø25 mm N35 neodymium magnetic rods.
- Magnetic rods are arranged in parallel across the product flow.
- Provides a magnetic value of 10,000 Gauss.
- Manufactured from AISI 304 stainless steel.
- Suitable for a maximum operating temperature of 80°C.
- Permanent neodymium magnetic system operates without electrical power.
Technical Specifications
- Product Type: Square Neodymium Grid Magnet
- Main Application: Bulgur Wheat Packaging Hopper
- Grid Dimensions: 350×350 mm
- Number of Magnetic Rods: 7
- Magnetic Rod Diameter: Ø25 mm
- Rod Arrangement: Parallel
- Neodymium Grade: N35
- Magnetic Value: 10,000 Gauss
- Material: AISI 304 Stainless Steel
- Maximum Operating Temperature: 80°C
- Cleaning: Manual
- Electricity Required: No
The Bulgur Wheat Packaging Hopper Grid Magnet is a 350×350 mm magnetic separator designed to help capture ferromagnetic metal contamination from bulgur before weighing and packaging. Its 7 parallel Ø25 mm N35 neodymium magnetic rods provide 10,000 Gauss magnetic surfaces, while the AISI 304 stainless steel construction is suitable for applications up to 80°C without requiring electrical power.
| Technical Specification | Value |
|---|---|
| Product Type | Square Neodymium Grid Magnet |
| Main Application | Bulgur Wheat Packaging Hopper |
| Grid Dimensions | 350×350 mm |
| Number of Magnetic Rods | 7 |
| Magnetic Rod Diameter | Ø25 mm |
| Rod Arrangement | Parallel |
| Neodymium Grade | N35 |
| Magnetic Value | 10,000 Gauss |
| Material | AISI 304 Stainless Steel |
| Maximum Operating Temperature | 80°C |
| Cleaning | Manual |
| Electricity Required | No |

What is a Bulgur Wheat Packaging Hopper Grid Magnet?
A Bulgur Wheat Packaging Hopper Grid Magnet is a permanent magnetic separation system designed to help capture ferromagnetic foreign metal particles that may be present in the final bulgur product flow before weighing and packaging.
This model consists of a 350×350 mm square structure with 7 Ø25 mm magnetic rods, using N35 neodymium magnets with a specified magnetic value of 10,000 Gauss. The construction is AISI 304 stainless steel.
Where is the grid magnet used in a bulgur wheat production line?
The main intended installation point is the final product hopper before weighing and packaging. Depending on the process layout, it can also be positioned at another suitable gravity-fed product transfer point.
A typical process can be represented as:
Bulgur Wheat Production
↓
Crushing / Sizing / Classification
↓
Final Product Hopper
↓
350×350 mm Ø25×7 Grid Magnet
↓
10,000 Gauss Magnetic Control
↓
Weighing
↓
Packaging
Why is a grid magnet used before packaging?
During production, bulgur can come into contact with crushers, screens, conveying equipment, hoppers and mechanical connections. A magnetic control point before packaging helps capture suitable ferromagnetic particles that may originate from processing equipment before the finished product reaches the weighing and packaging stages.
What types of metal contamination can it help capture?
Depending on their magnetic properties, dimensions, shape and position within the product flow, the grid magnet can help capture contaminants such as:
- iron particles,
- carbon steel particles,
- steel wire fragments,
- screw fragments,
- small ferromagnetic wear particles,
- small steel fragments.
The system is designed primarily for ferromagnetic metal contamination and should not be considered a separator for every type of metal.
What does the 350×350 mm size mean?
The magnetic grid has overall dimensions of 350×350 mm. This square configuration provides a magnetic control area suitable for compatible hopper openings and gravity-fed product passages.
Installation suitability should be evaluated according to:
- hopper opening dimensions,
- product passage cross-section,
- mounting structure,
- maintenance access,
- product flow characteristics.
What is the purpose of the 7 Ø25 mm magnetic rods?
The grid contains 7 magnetic rods, each Ø25 mm in diameter. As the bulgur passes between the rods, suitable ferromagnetic contaminants entering the magnetic field are attracted towards and retained on the magnetic rod surfaces.
Why are the magnetic rods arranged in parallel?
The seven magnetic rods are positioned parallel to one another. This arrangement creates multiple magnetic surfaces across the product passage while allowing free-flowing bulgur to move downwards between the rods.
Actual flow behaviour can vary depending on:
- bulgur grain size,
- moisture content,
- product flowability,
- feed rate,
- product depth.
What does N35 neodymium mean?
The magnetic elements used in this product are specified as N35 grade neodymium magnets. N35 identifies the grade of the neodymium magnetic material used in the system.
Because these are permanent magnets, they continuously generate a magnetic field without electrical power.
What does 10,000 Gauss mean?
The specified magnetic value of the grid magnet is 10,000 Gauss. This magnetic field helps attract suitable ferromagnetic particles towards the magnetic rod surfaces.
However, 10,000 Gauss does not by itself indicate:
- a fixed attraction distance,
- a specific lifting capacity,
- a guaranteed metal capture percentage.
Actual separation performance also depends on the contaminant and process conditions.
Does 10,000 Gauss guarantee that every iron particle will be captured?
No. Actual capture performance depends on factors such as:
- particle size,
- particle shape,
- magnetic properties,
- distance from the magnetic rod,
- product flow rate,
- product layer depth,
- proximity to the magnetic surface,
- accumulated metal on the rods.
For critical applications, the complete process conditions should be evaluated rather than relying only on the Gauss value.
Does the magnet attract bulgur wheat?
No. Bulgur is not ferromagnetic.
The bulgur passes between the magnetic rods while suitable ferromagnetic foreign particles can be attracted to and retained on the magnetic surfaces.
Does it capture aluminium?
No. Aluminium is not ferromagnetic and is not attracted like iron or suitable steel by a conventional permanent neodymium grid magnet.
If aluminium separation is required, another separation technology should be considered.
Does it capture copper or brass?
No. Copper and brass are not ferromagnetic and are not separated by this magnetic grid in the same way as iron or carbon steel.
Can it capture stainless steel?
It depends on the stainless steel grade and its metallurgical condition. Some stainless steels can exhibit a magnetic response, while others may have very little magnetic attraction.
For this reason, capture of all stainless steel contamination should not be guaranteed. If stainless steel separation is important, representative samples should be tested.
Why is AISI 304 stainless steel used?
The product is manufactured with an AISI 304 stainless steel structure.
AISI 304 is commonly used in process equipment because of its corrosion resistance and cleanable surface characteristics. However, suitability for a specific food-processing application should still be assessed according to the customer’s hygiene, regulatory and process requirements.
What is the maximum operating temperature?
The specified maximum operating temperature is 80°C.
If the product or process temperature may exceed 80°C, the magnetic system should be evaluated separately before use.
Does the grid magnet require electricity?
No.
The permanent N35 neodymium magnetic system does not require:
- electrical connection,
- power supply,
- electromagnetic coils,
- electrical control panel.
The magnetic field is generated continuously by the permanent magnets.
How does the Bulgur Wheat Packaging Hopper Grid Magnet work?
The basic operating principle is:
Bulgur Wheat Enters the Final Product Hopper
↓
Product Reaches the 350×350 mm Magnetic Grid
↓
Bulgur Passes Between 7 Ø25 mm Magnetic Rods
↓
Ferromagnetic Contamination Enters the Magnetic Field
↓
Suitable Metal Particles Are Retained on the Rod Surfaces
↓
Bulgur Continues to Weighing and Packaging
This corresponds to the intended process described for the product.
What should the product flow direction be?
In a typical gravity-fed installation:
Product Inlet from Above
↓
Magnetic Grid
↓
Product Outlet Below
The bulgur flows downwards between the magnetic rods under gravity.
Does the grid magnet physically sieve the bulgur?
No.
The term grid magnet or magnetic grate describes the arrangement of the magnetic rods. The primary function is magnetic separation, not grain-size classification.
The system helps capture ferromagnetic contamination while allowing the bulgur to continue through the product flow.
Where can it be installed in the packaging hopper?
Depending on the hopper geometry and available installation space, the magnetic grid can potentially be installed:
- inside the hopper,
- at the hopper outlet,
- before the weighing unit,
- in a gravity-fed product chute.
The installation should allow as much of the product flow as practical to pass through the effective magnetic rod area.
Can it be installed directly on a packaging machine?
Potentially, if the physical dimensions, mounting arrangement and product flow are suitable.
However, the main intended application of this specific model is the final bulgur wheat product hopper before weighing and packaging.
Can bulgur become trapped between the magnetic rods?
Product flow depends on several factors:
- grain size,
- moisture content,
- product flowability,
- spacing between the rods,
- feed rate.
Testing with the actual bulgur product and real process conditions is the most reliable way to assess flow behaviour.
What is the processing capacity in tonnes per hour?
A fixed tonnes-per-hour capacity has not been specified for this product.
Actual throughput depends on factors including:
- product grain characteristics,
- hopper cross-section,
- feeding method,
- product flow depth,
- process configuration.
Therefore, a fixed capacity should not be stated without application-specific data.
How are the magnetic rods cleaned?
This model is designed for manual cleaning. After the product flow has been safely stopped, accumulated ferromagnetic particles are manually removed from the magnetic rod surfaces.
Suitable personal protective equipment should be used because captured contamination may include sharp metal fragments.
How often should the grid magnet be cleaned?
There is no single cleaning interval suitable for every application.
Cleaning frequency should be determined according to:
- quantity of bulgur processed,
- operating time,
- ferromagnetic contamination level,
- size of captured particles,
- rate of metal accumulation.
Regular inspection should be used to establish an appropriate cleaning schedule.
Does accumulated metal affect magnetic performance?
Yes.
Excessive accumulation of metal on the magnetic rods can cover parts of the active magnetic surface and make it more difficult for newly arriving contaminants to approach the rods.
Regular inspection and cleaning therefore help maintain effective separation conditions.
Can it be used as the final magnetic control point before packaging?
Yes. This is the principal intended application of this product.
The grid magnet provides an additional magnetic control stage before the bulgur proceeds to weighing and packaging equipment.
Does the grid magnet replace a metal detector?
No.
A grid magnet and a metal detector operate according to different principles. The magnetic grid physically attracts and retains suitable ferromagnetic contamination, whereas a metal detector can be configured to detect metallic contamination according to its design and operating principle.
Where required, both systems can be used within the same production line.
What maintenance is required?
The following should be inspected periodically:
- Ø25 mm magnetic rod surfaces,
- side support plates,
- fasteners,
- welded joints,
- mechanical connections.
If significant deformation, damage or deterioration is detected, the equipment should be assessed before continued use.
Can the grid magnet be manufactured in custom dimensions?
Yes.
Depending on the application, parameters such as:
- outer grid dimensions,
- number of magnetic rods,
- magnetic rod diameter,
- product passage dimensions,
- supporting construction
can be designed according to the dimensions and process requirements of the packaging hopper.


