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SM 32x200 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130360

GTIN: 5906301813088

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

200 mm

Weight

1100 g

676.50 ZŁ with VAT / pcs + price for transport

550.00 ZŁ net + 23% VAT / pcs

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Strength as well as form of a neodymium magnet can be reviewed using our force calculator.

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SM 32x200 [2xM8] / N52 - magnetic separator

Specification/characteristics SM 32x200 [2xM8] / N52 - magnetic separator

properties

values

Cat. no.

130360

GTIN

5906301813088

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

32 mm [±0,1 mm]

Height

200 mm [±0,1 mm]

Weight

1100 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 welded in a construction made of stainless steel usually AISI304. In this way, it is possible to precisely segregate ferromagnetic elements from different substances. A key aspect of its operation is the use of repulsion of N and S poles of neodymium magnets, which enables magnetic substances to be attracted. The thickness of the embedded magnet and its structure's pitch affect the power and range of the separator's operation.

Generally speaking, magnetic separators are designed to separate ferromagnetic elements. If the cans are made of ferromagnetic materials, the separator will effectively segregate them. However, if the cans are made of non-ferromagnetic materials, such as aluminum, the separator will not effectively segregate them.

Yes, magnetic rollers find application in the food industry for the elimination of metallic contaminants, including iron fragments or iron dust. Our rollers are built from durable acid-resistant steel, EN 1.4301, approved for contact with food.

Magnetic rollers, otherwise magnetic separators, are employed in metal separation, food production as well as recycling. They help in extracting iron dust in the course of the process of separating metals from other wastes.

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

From both sides of the magnetic bar will be with M8 threaded holes - 18 mm, allowing for quick installation in machines or magnetic filter drawers. A "blind" version is also possible in manual separators.

In terms of magnetic properties, magnetic bars differ 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.

Often it is believed that the greater the magnet's power, the more efficient it is. However, the effectiveness of the magnet's power depends 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.

If the magnet is thin, the magnetic force lines will be short. Otherwise, in the case of a thicker magnet, the force lines are extended and extend over a greater distance.

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

In a salt water contact, AISI 316 steel exhibits the best resistance thanks to its exceptional corrosion resistance.

Magnetic rollers stand out for their unique configuration of poles and their capability to attract magnetic particles directly onto their surface, in contrast to other devices that often use more complicated filtration systems.

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

Magnetic induction for a magnet on a roller is determined using a teslameter or a gaussmeter with a flat Hall-effect probe, aiming to find the highest magnetic field value close to the magnetic pole. The outcome is checked in a value table - the lowest is N30. All designations below N27 or N25 indicate recycling that doesn't meet the standard - they are not suitable.

Neodymium magnetic rollers offer many advantages, including excellent separation efficiency, strong magnetic field, and durability. However, some of the downsides may involve the need for regular cleaning, higher cost, and potential installation challenges.

By ensuring proper maintenance of neodymium magnetic rollers, you should they should be regularly cleaned, avoiding temperatures above 80 degrees. The rollers our rollers have waterproofing IP67, so if they are not sealed, the magnets inside can rust and weaken. Magnetic field measurements should be carried out every two years. Caution should be taken during use, 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 effective range of the roller corresponds to its diameter: fi25mm gives an active range of about 25mm, while fi32 gives an active range of about 40mm.

Magnetic rollers are cylindrical neodymium magnets placed in a casing made of corrosion-resistant stainless steel, 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 metal separation is crucial.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Apart from their strong power, neodymium magnets have these key benefits:

They retain their magnetic properties for nearly 10 years – the loss is just ~1% (according to analyses),
They are extremely resistant to demagnetization caused by external magnetic sources,
By applying a shiny layer of gold, the element gains a modern look,
They exhibit extremely high levels of magnetic induction near the outer area of the magnet,
Neodymium magnets are known for exceptionally strong magnetic induction and the ability to work at temperatures up to 230°C or higher (depending on the magnetic form),
The ability for precise shaping or adjustment to individual needs – neodymium magnets can be manufactured in a wide range of shapes and sizes, which amplifies their functionality across industries,
Important function in new technology industries – they serve a purpose in data storage devices, electric drives, clinical machines or even high-tech tools,
Relatively small size with high magnetic force – neodymium magnets offer strong power in compact dimensions, which makes them ideal in miniature devices

Disadvantages of magnetic elements:

They can break when subjected to a heavy impact. If the magnets are exposed to physical collisions, we recommend in a protective case. The steel housing, in the form of a holder, protects the magnet from damage and additionally strengthens its overall durability,
Magnets lose field strength when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible magnetic decay (influenced by the magnet’s dimensions). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
Magnets exposed to damp air can rust. Therefore, for outdoor applications, it's best to use waterproof types made of plastic,
Using a cover – such as a magnetic holder – is advised due to the restrictions in manufacturing threads directly in the magnet,
Potential hazard linked to microscopic shards may arise, especially if swallowed, which is crucial in the health of young users. Moreover, tiny components from these devices have the potential to interfere with diagnostics if inside the body,
In cases of tight budgets, neodymium magnet cost may be a barrier,

Handle Neodymium Magnets Carefully

Under no circumstances should neodymium magnets be brought close to GPS and smartphones.

Magnetic fields can interfere with compasses and magnetometers used in aviation and maritime navigation, as well as internal compasses of smartphones and GPS devices. There are neodymium magnets in every smartphone, for example, in the microphone and speakers.

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 is because many of these devices are equipped with a function that deactivates the device in a magnetic field.

Keep neodymium magnets far from children.

Neodymium magnets are not toys. Do not allow children to play with them. Small magnets can pose a serious choking hazard. If multiple magnets are swallowed, they can attract to each other through the intestinal walls, causing significant injuries, and even death.

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

If joining of neodymium magnets is not controlled, then they may crumble and crack. Remember not to approach them to each other or hold them firmly in hands at a distance less than 10 cm.

Keep neodymium magnets away from the wallet, computer, and TV.

The strong magnetic field generated by neodymium magnets can damage magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, etc. devices. They can also damage videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

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.

The magnet coating contains nickel, so be cautious if you have a nickel allergy.

Studies clearly indicate a small percentage of people who suffer from metal allergies such as 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 made of neodymium are extremely fragile, leading to shattering.

Neodymium magnets are characterized by significant fragility. Neodymium magnets are made of metal and coated with a shiny nickel surface, but they are not as hard as steel. In the event of a collision between two magnets, there may be a scattering of fragments in different directions. Protecting your eyes is crucial in such a situation.

Neodymium magnets can demagnetize at high temperatures.

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

Neodymium magnets are over 10 times more powerful than ferrite magnets (the ones in speakers), and their strength can shock you.

Please review the information on how to handle neodymium magnets and avoid significant harm to your body, as well as prevent unintentional damage to the magnets.

Safety precautions!

So you are aware of why neodymium magnets are so dangerous, see the article titled How dangerous are very strong neodymium magnets?.