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SM 32x400 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130463

GTIN: 5906301813347

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

400 mm

Weight

2215 g

1 266.90 ZŁ with VAT / pcs + price for transport

1 030.00 ZŁ net + 23% VAT / pcs

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Specifications along with shape of a neodymium magnet can be estimated using our magnetic calculator.

Orders placed before 14:00 will be shipped the same business day.

SM 32x400 [2xM8] / N52 - magnetic separator

Specification/characteristics SM 32x400 [2xM8] / N52 - magnetic separator

properties

values

Cat. no.

130463

GTIN

5906301813347

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

32 mm [±0,1 mm]

Height

400 mm [±0,1 mm]

Weight

2215 g [±0,1 mm]

Manufacturing Tolerance

± 0.1 mm

Magnetic properties of material N52

properties

values

units

coercivity bHc ?

860-995

kA/m

coercivity bHc ?

10.8-12.5

kOe

energy density [Min. - Max.] ?

380-422

BH max KJ/m

energy density [Min. - Max.] ?

48-53

BH max MGOe

remenance Br [Min. - Max.] ?

14.2-14.7

kGs

remenance Br [Min. - Max.] ?

1420-1470

actual internal force iHc

≥ 955

kA/m

actual internal force iHc

≥ 12

kOe

max. temperature ?

≤ 80

°C

Physical properties of NdFeB

properties

values

units

Vickers hardness

≥550

Density

≥7.4

g/cm³

Curie Temperature TC

312 - 380

°C

Curie Temperature TF

593 - 716

°F

Specific resistance

150

μΩ⋅Cm

Bending strength

250

Mpa

Compressive strength

1000~1100

Mpa

Thermal expansion parallel (∥) to orientation (M)

(3-4) x 106

°C^-1

Thermal expansion perpendicular (⊥) to orientation (M)

-(1-3) x 10-6

°C^-1

Young's modulus

1.7 x 104

kg/mm²

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The device rod magnetic is based on the use of neodymium magnets, which are embedded in a construction made of stainless steel usually AISI304. Due to this, it is possible to precisely segregate ferromagnetic particles from the mixture. A fundamental component of its operation is the use of repulsion of N and S poles of neodymium magnets, which causes magnetic substances to be targeted. The thickness of the embedded magnet and its structure pitch affect the range and strength of the separator's operation.

Generally speaking, magnetic separators are used to segregate ferromagnetic elements. If the cans are ferromagnetic, a magnetic separator will be effective. However, if the cans are made of non-ferromagnetic materials, such as aluminum, the magnetic separator will not be effective.

Yes, magnetic rollers find application in the food sector to remove metallic contaminants, including iron fragments or iron dust. Our rods are constructed from durable acid-resistant steel, EN 1.4301, approved for contact with food.

Magnetic rollers, often called cylindrical magnets, are employed in metal separation, food production as well as recycling. They help in eliminating iron dust in the course of the process of separating metals from other wastes.

Our magnetic rollers are built with neodymium magnets placed in a stainless steel tube casing of stainless steel with a wall thickness of 1mm.

Both ends of the magnetic bar can be with M8 threaded holes - 18 mm, enabling simple mounting in machines or magnetic filter drawers. A "blind" version is also possible in manual separators.

In terms of forces, magnetic bars stand out in terms of flux density, magnetic force lines and the area of operation of the magnetic field. We produce them in two materials, N42 as well as N52.

Generally it is believed that the greater the magnet's power, the better. Nevertheless, the strength of the magnet's power is based on the height of the used magnet and the quality of the material [N42] or [N52], as well as on the area of use and specific needs. The standard operating temperature of a magnetic bar is 80°C.

In the case where the magnet is more flat, the magnetic force lines will be short. By contrast, when the magnet is thick, the force lines are extended and reach further.

For making the casings of magnetic separators - rollers, usually stainless steel is used, particularly types AISI 316, AISI 316L, and AISI 304.

In a salt water contact, type AISI 316 steel exhibits the best resistance due to its exceptional anti-corrosion properties.

Magnetic bars stand out for their specific arrangement of poles and their capability to attract magnetic substances directly onto their surface, in contrast to other separators that often use more complicated filtration systems.

Technical designations and terms related to magnetic separators include among others polarity, magnetic induction, magnet pitch, as well as the type of steel used.

Magnetic induction for a roller is measured using a teslameter or a gaussmeter with a flat Hall-effect probe, seeking the highest magnetic field value close to the magnetic pole. The outcome is verified in a value table - the lowest is N30. All designations below N27 or N25 suggest recycling that falls below the standard - they are not suitable.

Neodymium magnetic rollers offer many advantages, including a very strong magnetic field, the ability to capture even the tiniest metal particles, and durability. On the other hand, among the drawbacks, one can mention the requirement for frequent cleaning, greater weight, and potential installation difficulties.

By ensuring proper maintenance of neodymium magnetic rollers, it is recommended they should be regularly cleaned, avoiding temperatures above 80 degrees. The rollers feature waterproofing IP67, so if they are leaky, the magnets inside can rust and lose their power. Testing of the rollers should be carried out once every 24 months. Care should be taken, as it’s possible getting pinched. If the protective tube is only 0.5 mm thick, it may wear out, which in turn could cause problems with the magnetic rod seal and product contamination. The range of the roller is equal to its diameter: fi25mm gives an active range of about 25mm, while fi32 gives an active range of about 40mm.

A magnetic roller is a magnetic separator made from a neodymium magnet enclosed in a cylindrical stainless steel housing, which are used to remove metal contaminants from bulk and granular materials. They are applied in industries such as food processing, ceramics, and recycling, where the removal of iron metals and iron filings is essential.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Besides their stability, neodymium magnets are valued for these benefits:

Their magnetic field is maintained, and after around ten years, it drops only by ~1% (according to research),
They are highly resistant to demagnetization caused by external magnetic fields,
In other words, due to the shiny gold coating, the magnet obtains an professional appearance,
They have exceptional magnetic induction on the surface of the magnet,
With the right combination of materials, they reach increased thermal stability, enabling operation at or above 230°C (depending on the form),
Thanks to the freedom in shaping and the capability to adapt to specific requirements, neodymium magnets can be created in different geometries, which broadens their functional possibilities,
Important function in modern technologies – they are used in computer drives, electric drives, clinical machines along with sophisticated instruments,
Thanks to their power density, small magnets offer high magnetic performance, in miniature format,

Disadvantages of magnetic elements:

They are fragile when subjected to a strong impact. If the magnets are exposed to mechanical hits, it is advisable to use in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from breakage and enhances its overall robustness,
High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent deterioration in performance (depending on height). To prevent this, we offer heat-resistant magnets marked [AH], capable of working up to 230°C, which makes them perfect for high-temperature use,
Due to corrosion risk in humid conditions, it is advisable to use sealed magnets made of rubber for outdoor use,
The use of a protective casing or external holder is recommended, since machining fine details in neodymium magnets is difficult,
Health risk from tiny pieces may arise, when consumed by mistake, which is important in the family environments. Additionally, minuscule fragments from these devices have the potential to interfere with diagnostics if inside the body,
High unit cost – neodymium magnets are costlier than other types of magnets (e.g., ferrite), which can restrict large-scale applications

Precautions

Neodymium magnets can become demagnetized at high temperatures.

Despite the general resilience of magnets, their ability to retain their magnetic strength can be influenced by factors like the type of material used, the magnet's shape, and the intended purpose for which it is employed.

Make sure not to bring neodymium magnets close to the TV, wallet, and computer HDD.

Strong magnetic fields emitted by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other devices. In addition, they can damage televisions, VCRs, computer monitors, and CRT displays. Avoid placing neodymium magnets in close proximity to electronic devices.

Keep neodymium magnets away from GPS and smartphones.

Strong fields generated by neodymium magnets interfere with compasses and magnetometers used in navigation, as well as internal compasses of smartphones and GPS devices.

Neodymium magnets are not recommended for people with pacemakers.

Neodymium magnets generate very strong magnetic fields that can interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Dust and powder from neodymium magnets are flammable.

Do not attempt to drill into neodymium magnets. Mechanical processing is also not recommended. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Neodymium magnetic are incredibly fragile, they easily crack and can crumble.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. Despite being made of metal as well as coated with a shiny nickel plating, they are not as hard as steel. In the case of a collision between two magnets, there can be a scattering of small sharp metal fragments in different directions. Protecting your eyes is essential.

Magnets will attract to each other, so remember not to allow them to pinch together without control or place your fingers in their path.

In the case of placing a finger in the path of a neodymium magnet, in such a case, a cut or even a fracture may occur.

Neodymium magnets are the strongest magnets ever created, and their strength can surprise you.

Read the information on our website on how to properly utilize neodymium magnets and avoid significant harm to your body and unintentional damage to the magnets.

Avoid contact with neodymium magnets if you have a nickel allergy.

Studies show a small percentage of people have allergies to certain metals, including nickel. An allergic reaction often manifests as skin redness and rash. If you have a nickel allergy, try wearing gloves or avoid direct contact with nickel-plated neodymium magnets.

Magnets should not be treated as toys. Therefore, it is not recommended for children to have access to them.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

Exercise caution!

Please read the article - What danger lies in neodymium magnets? You will learn how to handle them properly.