200/4 (10.500 Gs)

The magnetic grate, intended exclusively for industrial use, ensures perfect cleaning of your dry mixtures from ferromagnetic impurities (by the term ferromagnetic impurities we mean fully magnetic metals such as iron, nickel, cobalt, and alloys containing iron, not paramagnetic, very weakly magnetic materials).

For proper operation, the processed mixtures (material that you pour over the magnetic grate) must be:

• homogeneous,
• dry with good flow properties so that clogging of the magnetic grate does not occur, see below.

The magnetic grate is suitable for use only in non-continuous operations (during manual cleaning of the magnetic grate, it is necessary to stop the flow of the processed material). It is installed only in vertical pipelines, the tubes must be horizontal (if vertical installation is not possible, do not use this product and contact us to select another magnetic grate (magnetic separator) or to confirm its suitability for use), for example in the food and chemical industries, in agriculture, in the waste processing industry, and in the field of construction materials production, see the list of suitable materials below.

The magnetic grate is used as a pre-stage to protect technologies so that metallic ferromagnetic impurities do not enter equipment that could be damaged by them, such as mill knives, crushers, nozzles of regranulation and granulation lines, injection molding nozzles, extrusion presses, pressing machines, shredding equipment, fine sieves, ceramic pressing machines, glass presses, etc.

It can also be used for purification of the mixture to the highest possible purity, where the grate is placed at the end of the production process just before packaging and dispatch, so that no contamination by ferromagnetic material occurs during further operations in the production plant. In this case, it is assumed that the processed material is immediately sealed into closable packaging or other closable containers. Thanks to a perfectly designed magnetic circuit, there is a high capture of ferromagnetic impurities (please read carefully below the description of what ferromagnetic metal impurities this magnetic grate can capture).

The particle size (fraction, size) of the processed material may be a maximum of 3 mm in diameter (3x3x3 mm), of regular shape; the material must be free-flowing, dry, non-sticky and without lumps so that clogging of the magnetic grate with material does not occur. By the term free-flowing material used in this description, we mean such material that, when poured freely, does not tend to arch (form cohesive masses), does not spontaneously retain itself and thus does not prevent free flow over the magnetic grate. Examples of such materials (which flow poorly) may include moist, greasy materials, but also materials that appear dry and seemingly free-flowing at first glance, yet their natural property is poor flowability. Such a representative is, for example, smooth, very finely milled flour or various very finely milled starches. Materials that we recommend and which, in our professional opinion and experience, are suitable for pouring (purification) over this magnetic grate are listed below (please note the maximum permissible fraction/particle size stated above). If the material from which you wish to separate ferromagnetic impurities (material for purification) is not listed below, do not use this product and contact us for further clarification and possible recommendation of another magnetic separator/grate or confirmation that this type is suitable for use with your material.

List of suitable materials for magnetic separation using the magnetic grate:

granulated sugar
powdered sugar (note the risk of clogging; we recommend pouring slowly and distributing evenly over the entire surface of the grate)
cereals, various types
lentils (in case of frequent use for large quantities, abrasion may occur; we warn of possible faster wear of protective tubes)
crushed cocoa beans
crushed PET bottles (note the risk of clogging; we recommend pouring slowly and evenly across the grate surface; more suitable for smaller capacities)
rubber regranulate
rubber granulate
chili seeds
animal feed, free-flowing, similar in character to flour up to coarser fractions, but max. particle size 3 mm (must not be abrasive)
coconut flour
cocoa
flour (note the risk of clogging; we recommend pouring slowly and evenly across the entire grate surface)
poppy seeds (only seeds, not whole poppy heads)
ground corn
meat and bone meal
matcha powder
pudding powder (risk of arching and clogging; pour slowly and evenly across the grate)
plastic granulate and regranulate
plastic flakes
ash (not hot, but cooled to the operating temperature of the magnetic grate)
food-grade loose non-abrasive mixtures
milk powder
dried chocolate
dried coconut
dried herbs
dried spices (finely ground or very finely crushed)
instant soups (dry)
dried whey (note the risk of clogging; we recommend pouring slowly and evenly across the entire grate surface)
sesame seeds
enamel or glass batch (we warn of increased abrasion and higher risk of wear of protective tubes)
salt (we warn of potentially shorter service life depending on usage frequency)
loose starches, e.g. corn starch
construction materials (free-flowing and non-abrasive)
tapioca pearls

We again emphasize that materials must be dry, free-flowing (must not have a tendency to arch), non-abrasive, with a maximum regular granulometry of up to 3 mm (3x3x3 mm). Throughput capacity varies depending on the material from which ferromagnetic impurities are to be separated; it cannot be determined unequivocally and differs for each type of material. If you are unsure about throughput or capacity, do not use this magnetic grate and contact our sales and technical department for recommendation of another type of magnetic separator or for approval of the use of this type.

Please note that the wall thickness of the protective tube is very small in order to achieve high magnetic induction (magnetic force) and detachment force on its surface. Therefore, please also consider the height from which you will pour the material onto the magnetic grate (drop height). The height from which the material is poured onto the magnetic grate must not exceed 1 m. However, this is individual for each type of material. It is not possible to precisely determine and prescribe from what height a specific material should be poured. When pouring from a great height, the protective tubes may bend or be punctured, which can result in damage to the entire product. If the height from which your material will be poured onto the magnetic grate exceeds 1 m, do not use this product and contact our sales and technical department to recommend another type of magnetic separator/grate or to approve the use of this type.

This magnetic grate captures (separates) metallic ferromagnetic particles from a size of 1 µm and smaller (characteristically ferromagnetic, immeasurable magnetic dust) up to a size of 3 mm (3x3x3 mm), which is the maximum fraction (size) of material that may fall onto the magnetic grate and that may be poured through it. In exceptional cases, the magnetic grate may capture larger metal objects up to a size of 5 mm (5x5x5 mm). However, only a random occurrence of these impurities is expected, up to a maximum of 1% of the total hourly capacity of the processed material (regular cleaning of the magnetic grate from ferromagnetic impurities is assumed; this does not mean that the entire 1% of larger ferromagnetic impurities can remain on the magnetic grate throughout the processing of the hourly material capacity). The content of these larger ferromagnetic impurities must not be higher. If the occurrence of such larger ferromagnetic impurities in your material is higher, do not use this magnetic grate and contact our technical and sales department for professional advice.

No objects larger than specified (maximum diameter 3 mm, 3x3x3 mm) may fall onto the magnetic grate, except for ferromagnetic impurities described above in random quantities. If you are concerned about the presence of larger ferromagnetic or other impurities, it is necessary to install a sieve with a mesh size of max. 3 mm upstream, so that these larger unwanted objects are captured before entering the magnetic grate (after installing the sieve, it is necessary to consider reducing the throughput capacity of the magnetic grate). The sieve is not included in the delivery of the magnetic grate. We also point out the possibility that your material may contain a large amount of fine metallic impurities (very fine magnetic metal dust smaller than 1 µm), which may coat the magnetic tubes and make the magnetic grate non-passable (fine magnetic particles bind the processed material and clog the entire system). At the same time, the magnetic force/efficiency of the magnetic grate will be significantly reduced. If the magnetic tubes become immediately coated and “hidden” in iron dust after starting the material flow through the magnetic grate, this is not a defect of the magnetic grate, but it is necessary to strengthen the magnetic separation with another magnetic separator/grate or to clean the magnetic grate more frequently; your material most likely contains a very large amount of ferromagnetic particles.

If you are not able to ensure:

• the absence of particles larger than 3 mm (3x3x3 mm) in your material,
• less than 1% of larger ferromagnetic particles (up to 5 mm) within the hourly capacity,
• minimal occurrence of fine metallic dust in your material,

do not use this magnetic grate and contact our sales and technical department to recommend another type of magnetic separator or to approve the use of this type.

The magnetic grate is designed to capture as many ferromagnetic metallic impurities as possible. However, everything depends on the amount of these impurities present in your material. It is not possible to guarantee the capture of all ferromagnetic impurities. It is always necessary to consider the specific technology and capacity. If necessary, additional types of magnetic separation/magnetic grates must be installed upstream or added. Please do not rely solely on this single magnetic grate. If you are unsure, do not use this type of magnetic grate and contact our experts in the field of magnetic separation at any time.

If you place the magnetic grate into your own construction (box, hopper, chute, etc.), please note that such constructions must not be made of metallic (magnetic) material. There is a risk of injury and a significant reduction in magnetic force. All constructions into which the magnetic grate is installed must be made of non-magnetic materials. The minimum distance of metallic (magnetic) structures from the magnetic grate is 200 mm.

This grate can be placed freely into hoppers or incorporated directly into piping systems using the Jacob system. Seals and Jacob fastening clamps are not included in the delivery.

The magnetic grate must not be used for separating stainless steel (commonly referred to as “stainless”), even if it appears magnetic/paramagnetic (such cases may occur after passing through crushers or other forms of deformation; such paramagnetic stainless steels may also be used in the production of various sieves).

The magnetic grate is also not intended for the magnetic separation of non-ferrous non-magnetic metals, nor for the separation of components or parts that contain ferromagnetic metals (e.g., plastic parts with embedded metal residues, crushed window frames with metal strips, wooden pellets with embedded fine wires…). If you need to separate such ferromagnetic impurities, do not use this magnetic grate and contact our experts in magnetic separation, who will advise you on which other magnetic separator to use or how to supplement your separation system.

Please note that during cleaning of the magnetic grate it is not possible to use pressurized water or immerse the magnetic cores. Only a dry cloth may be used for cleaning, or well-dried compressed air to blow off residual metallic impurities and separated material.

When cleaning the magnetic grate, be very careful. The magnetic cores are very strong, and contact with metallic objects may cause injury by pinching or crushing. Do not place them on any magnetic surfaces (tables, workbenches, stairs, floors, etc.).

This magnetic grate is not intended for use in any environment classified as potentially explosive (ATEX).

The magnetic grate is intended for indoor use only. Do not install it outdoors.

Procedure for measuring magnetic induction

Measurement is carried out using a standard gaussmeter with a probe thickness of 0.75 mm at the point of the highest magnetic induction by design – at the pole extensions or at the lowest point of the magnetic circuit arc. The test is repeated 3 times, each time at a different point of the magnetic circuit, and the average magnetic induction is calculated.

Procedure for measuring detachment force

Measurement is carried out using a polished steel reference sample with a diameter of 10 mm and a height of 20 mm. Measurement is performed at the point of the highest detachment force by design – at the pole extensions or at the lowest point of the magnetic circuit arc. The force at which the reference sample detaches is recorded. The test is repeated 3 times and the average detachment force is calculated.

For your information: 10 N ≈ 1 kg.

As confirmation of measurement and guarantee of measured values, we issue an original measurement report for each individual magnetic separator, which is included in the delivery (the report contains the stock and production number).

Operating temperature:

from -20 °C to +45 °C (from -4 to +113 °F)

Exceeding the operating temperature is possible in certain cases; however, it is important to note that this may lead to impairment of functionality or a reduction in service life. In such cases, consultation with the manufacturer is necessary to determine to what extent the device can be exposed to higher temperatures without damage and while maintaining safe operation.

WARNING:

The resulting detachment force and magnetic induction depend on many factors – e.g., the dimensions of the reference sample, the air gap between the sample and the tested magnetic circuit, probe thickness, surface contamination, surface treatment of the reference sample, etc. The stated values of detachment force and magnetic induction were measured under ideal test conditions. However, these values may vary depending on the specific environment, as operating conditions and wear may affect the efficiency of the product and measurement results. Therefore, the stated values must be considered indicative, and any deviations cannot be regarded as a defect. To determine exact values in a specific case, it is necessary to perform your own measurement. If the measured detachment force values are not sufficient for your needs and do not correspond to the stated values, you may use the guaranteed option to return the goods within 30 days under the conditions specified in the terms and conditions and purchase another type of magnetic separator. This 30-day period is intended for testing the product; after this period, the seller may refuse the return.

Copyright:

We do not agree, do not wish, and hereby do not grant any consent to copy any parts or the entirety of this text. Modification of the text using identical wording resulting in similar meaning is also prohibited. We do not agree with or permit any placement of our text on other websites, in professional journals, studies, or final theses at secondary schools and universities without prior consent from the company Magsy. If you wish to use our text or parts thereof, please contact us at any time.