Magnetic Grill

What Is a Magnetic Grill

Magnetic grill from GME enables effective magnetic separation for mechanical and gravity flow applications in all industries. Magnet grills and grate magnets can be installed or laid down inside hoppers, pits, chutes, housings, and bins, where they are easily accessible for cleaning.

Free-flowing powders and free-flowing granules are filtered of ultrafine ferrous impurities by a hopper magnet. GME’s designs maximize equipment to capture, control, and protect while enhancing product purity. We are the Magnetic Grill Manufacturer. A magnetic grill is most effective when the product is dry, free-flowing, and does not bridge between the magnetic tubes.

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 Type of Magnetic Grill

1. Square Magnetic Grill: Square Magnetic Grills and Grates provide an effective means of removing ferrous chips and metal particles from loosely packed, free-flowing materials. They are usually constructed of 304 stainless steel tubes or 316 stainless steel tubes for special domains filled with Ceramic or rare-earth magnets.

2. Round Magnetic Grid: Permanent Round Magnetic Grills are constructed by a row of magnetic bars that are fixed by frames in a round shape. used to separate iron particles mixed with dry, granular, or free-flowing materials such as carbon black, drugs, chemicals, cosmetics, plastics, food industries, and so on.

3. Hopper Magnet: Grate Magnets / Hopper Magnets provide a properly configured, high-density magnetic field to trap and hold ferrous fines, fragments, and small metal objects as the product flows through them. Stainless steel tubing and frames are welded into strong, integral units. They can be installed – or simply laid – inside hoppers, housings, and bins – and easily removed for cleaning. Grates are built for low-abrasion applications and should measure at least twice the size of your outlet opening, so as not to restrict product flow.

4. Easy-Clean Magnetic Grill: Our easy-clean magnetic separator grid or grate can be installed into existing chute work or machinery where height is restricted. It can also be supplied in housings for ease of installation into existing process lines. The magnetic separator grid or grate can pick up all contamination down to sub-micron size. Its cleaning process is quick and easy; pull the magnetic cores out of the stainless steel tube, and the contamination will fall away.

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How the Magnetic Grate works

 

Inside a magnetic grill, the separation process is straightforward. When powders or small granules pass through the stainless-steel frame, the magnetic bars catch any ferrous particles mixed in the material. These bars create a strong magnetic field that pulls iron dust, metal fragments, and other contaminants out of the flow before they move deeper into your equipment. Because the material spreads evenly across the grill surface, the contact time is long enough to ensure effective separation. After the process, the collected metal can be wiped off the bars during routine cleaning. This simple working method helps protect downstream machines and keeps your final product cleaner and more consistent.

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Specifications of the Magnetic Grill

Double Layer Hopper Magnet Specifications

Easy-Clean Magnetic Grid Specifications

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 Technical Drawings of Magnetic Grill

To learn more about magnetic rack technical drawings or if you require watermark-free technical drawings, please click the button below to contact us.

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Fully Welded Magnetic Grill

This magnetic grill is made with food-grade 304 or 316 stainless steel tubes. The material is suitable for direct contact with food products and complies with hygiene requirements for food processing environments. It offers strong corrosion resistance and long service life.
The frame and magnetic tubes are constructed using a full welding process. Each joint is completely welded and polished to ensure a smooth surface without gaps. This design reduces the risk of powder buildup and makes cleaning easier.
Compared with partially welded structures, a fully welded magnetic grill provides better sealing strength and improved durability. It is widely used in food, pharmaceutical, and chemical industries where sanitary standards are important.
The combination of certified stainless steel and full welding craftsmanship ensures reliable magnetic separation and safe operation in sensitive production lines.

Advantages of a Magnetic Grill

 

It is made of high-quality Stainless Steel with the best surface polish. We manufacture & supply magnetic grills in SS316 & SS304 grades.

Magnetic flux circuit geometry ensures the controlled accumulation of contaminants, which lowers product stream bridging or clogging.
Removing ferrous material extends the life of machinery.
Significant decrease in ferrous particles passing through magnetic grills.
Reduce downtime and improve output.

The Magnetic grills that we provide are as per the US FDA & other major guidelines.

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Factors to Take Into Consideration While Selecting Magnetic Grills

There are multiple factors worth considering when choosing a magnetic grill. For instance, it is important to take things such as the strength of the magnet, material compatibility, flow rate, and cleaning mechanism into account. Let’s look at these factors one by one:

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Applications of Industrial Magnetic Grate Separators

 

Industrial magnetic grate separators are used anywhere powders, pellets, or small granules move through a hopper, chute, or pipeline. Their job is to capture fine iron dust and metal fragments before these materials enter sensitive equipment.

Plastic Processing

In plastic plants, magnetic grates are placed in hoppers to protect injection molding machines and extruders. They remove metal particles mixed with plastic pellets, helping prevent nozzle blockages and screw damage.

Food and Beverage

Food producers use magnetic grates to keep spices, flour, sugar, and grain products free from metal contamination. The smooth stainless-steel design helps maintain hygiene standards and makes cleaning simple.

Chemical and Pharmaceutical

Powdered chemicals, additives, and tablet ingredients often pass through a grate before mixing. This prevents contamination that could affect product quality or lead to equipment wear.

Recycling and Powder Handling

Recycling centers and powder-processing facilities use magnetic grates to clean materials before they move to the next stage. This improves efficiency and extends equipment life by keeping metal debris out of grinders and conveyors.

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Why Choose Us Hopper Magnet

Hopper magnets are put to use to separate iron particles from other types of materials, including those that are dry, granular, or free-flowing. We are one of the best magnetic grill manufacturers and magnetic rod suppliers in China. Our Magnetic Grill, also known as the hopper magnetic grill, can be created using either a round, square, or rectangular frame made of stainless steel and magnetic rods placed inside the frame. These grills are available to customers for installation into the hopper or material feeding duct. In addition, we offer a grill of bespoke design complete with a test certificate, which may be fitted to circular ducts or pipes.

Food Contact Stainless Steel Tube

 

The magnetic grill tubes are manufactured from certified food-grade stainless steel, such as 304 or 316. These grades are widely used in food processing and pharmaceutical equipment due to their corrosion resistance, durability, and safety performance.
The stainless steel used in our magnetic bars has been tested and approved for direct food contact. The material is non-toxic, hygienic, and compliant with industry standards. It can safely handle powders, grains, spices, sugar, and other bulk materials without contamination risk.
The smooth, polished surface further supports easy cleaning and sanitary maintenance. Using certified food-grade stainless steel ensures product safety, regulatory compliance, and long-term reliability in demanding production environments.

Quality Management System

 

We believe that even a small magnet can make a big difference in industrial performance. That is why every step of our production process is carefully controlled, from raw material inspection to final product testing. Quality is not just a requirement, but a long-term commitment to our clients.
In May 2014, our factory successfully passed the TS16949 Quality Management System certification. In October of the same year, we also obtained ISO9001, ISO14001, and GB/T28001 certifications. These certifications reflect our standardized management system in quality control, environmental responsibility, and workplace safety.
Our production follows documented procedures and inspection standards. Each batch of products undergoes testing to ensure stable magnetic performance, structural reliability, and compliance with customer requirements.
Through continuous improvement and strict internal audits, we maintain consistent product quality and reliable supply for global industrial applications.

Gauss Test of the Magnetic Grill

 

The Gauss test measures the magnetic strength of each tube in the magnetic grill. It helps confirm that the magnet meets the required surface strength before installation.
A Gauss meter is placed directly on the surface of the magnetic tube. The probe measures the magnetic flux density at contact. For high-intensity magnetic grills, the surface Gauss level can typically reach 10,000–12,000 Gauss, depending on the magnet grade and design.
Testing is usually done at multiple points along the tube to ensure consistent performance. Uniform magnetic strength is important because uneven magnetization can reduce separation efficiency.
Regular Gauss testing during production and inspection helps ensure stable magnetic performance. It also provides reliable data for customers who require certified magnetic strength for industrial applications.

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Packaging of Magnetic Grates

Magnetic grates are carefully packed to ensure safe transportation and to prevent damage during shipment. Due to their weight and strong magnetic force, proper packaging is essential for maintaining product integrity. Each magnetic grate is first wrapped with protective film to prevent scratches on the stainless steel surface. Foam padding is then added around the frame and magnetic tubes to absorb shock and reduce movement inside the box.
For export orders, we use reinforced wooden cases with internal cushioning materials. This structure helps protect the equipment from impact, vibration, and moisture during long-distance transportation. Larger pneumatic or custom models are securely fixed inside the crate to avoid shifting.
Clear labeling and protective handling marks are applied to the outer packaging to ensure safe loading and unloading. Proper packaging ensures that the magnetic grates arrive in good condition and are ready for installation upon delivery.

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