← previous

Product available shipping tomorrow

SM 32x225 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130361

GTIN: 5906301813095

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

225 mm

Weight

1205 g

676.50 ZŁ with VAT / pcs + price for transport

550.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

550.00 ZŁ

676.50 ZŁ

price from 5 pcs

522.50 ZŁ

642.68 ZŁ

price from 10 pcs

495.00 ZŁ

608.85 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need help making a decision?

Pick up the phone and ask +48 22 499 98 98 if you prefer drop us a message by means of our online form the contact form page.
Force and appearance of neodymium magnets can be estimated with our modular calculator.

Order by 14:00 and we’ll ship today!

SM 32x225 [2xM8] / N52 - magnetic separator

Specification/characteristics SM 32x225 [2xM8] / N52 - magnetic separator

properties

values

Cat. no.

130361

GTIN

5906301813095

Production/Distribution

Dhit sp. z o.o.

Country of origin

Poland / China / Germany

Customs code

85059029

Diameter Ø

32 mm [±0,1 mm]

Height

225 mm [±0,1 mm]

Weight

1205 g [±0,1 mm]

Manufacturing Tolerance

± 0.1 mm

Magnetic properties of material N52

properties

values

units

remenance Br [Min. - Max.] ?

14.2-14.7

kGs

remenance Br [Min. - Max.] ?

1420-1470

coercivity bHc ?

10.8-12.5

kOe

coercivity bHc ?

860-995

kA/m

actual internal force iHc

≥ 12

kOe

actual internal force iHc

≥ 955

kA/m

energy density [Min. - Max.] ?

48-53

BH max MGOe

energy density [Min. - Max.] ?

380-422

BH max KJ/m

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

Shopping tips

Product available wysyłka jutro!

MPL 30x20x20 / N38 - lamellar magnet

37.07 ZŁ / pcs

Product available wysyłka jutro!

MPL 60x10x5 / N38 - lamellar magnet

19.00 ZŁ / pcs

Product available wysyłka jutro!

SM 25x375 [2xM8] / N52 - magnetic separator

1131.60 ZŁ / pcs

Product available wysyłka jutro!

UMT 29x38 white / N38 - board holder

6.81 ZŁ / pcs

The main mechanism of the magnetic separator is the use of neodymium magnets, which are welded in a casing made of stainless steel usually AISI304. As a result, it is possible to efficiently separate ferromagnetic particles from the mixture. An important element of its operation is the use of repulsion of N and S poles of neodymium magnets, which enables magnetic substances to be collected. The thickness of the magnet and its structure pitch determine the range and strength of the separator's operation.

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

Yes, magnetic rollers are employed in the food sector to remove metallic contaminants, for example iron fragments or iron dust. Our rods are constructed from durable acid-resistant steel, EN 1.4301, intended for use in food.

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

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

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

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

Usually it is believed that the greater the magnet's power, the more effective. However, the value 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.

When the magnet is thin, the magnetic force lines will be short. Otherwise, in the case of a thicker magnet, the force lines are longer and reach further.

For constructing the casings of magnetic separators - rollers, frequently stainless steel is used, especially types AISI 304, AISI 316, and AISI 316L.

In a salt water environment, type AISI 316 steel is recommended due to its excellent corrosion resistance.

Magnetic rollers are characterized by their specific arrangement of poles and their ability to attract magnetic substances directly onto their surface, in contrast to other devices that often use more complicated filtration systems.

Technical designations and terms pertaining to magnetic separators comprise amongst others polarity, magnetic induction, magnet pitch, as well as the steel type applied.

Magnetic induction for a roller is determined using a teslameter or a gaussmeter with a flat Hall-effect probe, aiming to find the highest magnetic field value near the magnetic pole. The outcome is checked in a value table - the lowest is N30. All designations less than 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. On the other hand, among the drawbacks, one can mention higher cost compared to other types of magnets and the need for regular maintenance.

To properly maintain of neodymium magnetic rollers, it is recommended washing regularly, avoiding temperatures above 80 degrees. The rollers our rollers have waterproofing IP67, so if they are not sealed, the magnets inside can rust and lose their power. Testing of the rollers should be carried out every two years. Caution should be taken during use, as there is a risk getting pinched. If the protective tube is only 0.5 mm thick, it may wear out, which in turn could lead to 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, used for separating ferromagnetic contaminants from raw 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.

In addition to their immense field intensity, neodymium magnets offer the following advantages:

They retain their magnetic properties for around ten years – the drop is just ~1% (according to analyses),
They show strong resistance to demagnetization from external magnetic fields,
Thanks to the glossy finish and gold coating, they have an elegant appearance,
They exhibit extremely high levels of magnetic induction near the outer area of the magnet,
Thanks to their enhanced temperature resistance, they can operate (depending on the geometry) even at temperatures up to 230°C or more,
With the option for customized forming and personalized design, these magnets can be produced in multiple shapes and sizes, greatly improving design adaptation,
Key role in cutting-edge sectors – they serve a purpose in computer drives, rotating machines, medical equipment or even other advanced devices,
Thanks to their power density, small magnets offer high magnetic performance, while occupying minimal space,

Disadvantages of magnetic elements:

They may fracture when subjected to a sudden impact. If the magnets are exposed to physical collisions, we recommend in a steel housing. The steel housing, in the form of a holder, protects the magnet from breakage and reinforces its overall resistance,
High temperatures may significantly reduce the holding force of neodymium magnets. Typically, above 80°C, they experience permanent deterioration in performance (depending on form). 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,
Magnets exposed to moisture can oxidize. Therefore, for outdoor applications, it's best to use waterproof types made of non-metallic composites,
Using a cover – such as a magnetic holder – is advised due to the limitations in manufacturing holes directly in the magnet,
Health risk related to magnet particles may arise, if ingested accidentally, which is significant in the family environments. Furthermore, miniature parts from these magnets can complicate medical imaging when ingested,
Higher purchase price is an important factor to consider compared to ceramic magnets, especially in budget-sensitive applications

Maximum holding power of the magnet – what contributes to it?

The given pulling force of the magnet represents the maximum force, measured in the best circumstances, specifically:

with mild steel, used as a magnetic flux conductor
with a thickness of minimum 10 mm
with a refined outer layer
with no separation
under perpendicular detachment force
at room temperature

Magnet lifting force in use – key factors

In practice, the holding capacity of a magnet is conditioned by the following aspects, from crucial to less important:

Air gap between the magnet and the plate, since even a very small distance (e.g. 0.5 mm) causes a drop in lifting force of up to 50%.
Direction of applied force, because the maximum lifting capacity is achieved under perpendicular application. The force required to slide the magnet along the plate is usually several times lower.
Thickness of the plate, as a plate that is too thin causes part of the magnetic flux not to be used and to remain wasted in the air.
Material of the plate, because higher carbon content lowers holding force, while higher iron content increases it. The best choice is steel with high magnetic permeability and high saturation induction.
Surface of the plate, because the more smooth and polished it is, the better the contact and consequently the greater the magnetic saturation.
Operating temperature, since all permanent magnets have a negative temperature coefficient. This means that at high temperatures they are weaker, while at sub-zero temperatures they become slightly stronger.

* Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance {between} the magnet’s surface and the plate reduces the load capacity.

Notes with Neodymium Magnets

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. If the magnet is crushed into fine powder or dust, it becomes highly flammable.

Neodymium magnets can attract to each other, pinch the skin, and cause significant injuries.

If the joining of neodymium magnets is not under control, at that time they may crumble and crack. Remember not to move them to each other or have them firmly in hands at a distance less than 10 cm.

Neodymium magnets are the strongest, most remarkable magnets on earth, and the surprising force between them can surprise you at first.

Make sure to review all the information we have provided. This will help you avoid harm to your body and damage to the magnets.

If you have a nickel allergy, avoid contact with neodymium magnets.

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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

Neodymium magnets can become demagnetized at high temperatures.

While Neodymium magnets can lose their magnetic properties at high temperatures, it's important to note that the extent of this effect can vary based on factors such as the magnet's material, shape, and intended application.

Keep neodymium magnets away from 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 away from GPS and smartphones.

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

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

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

Magnets made of neodymium are extremely fragile, they easily fall apart as well as can become damaged.

In the event of a collision between two neodymium magnets, it can result in them getting chipped. They are coated with a shiny nickel plating similar to steel, but they are not as hard. 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.

Under no circumstances should neodymium magnets be placed near a computer HDD, TV, and wallet.

Magnetic fields generated by neodymium magnets can damage magnetic storage media such as floppy disks, credit cards, magnetic ID cards, cassette tapes, video tapes, or other similar devices. They can also damage televisions, VCRs, computer monitors, and CRT displays. You should especially avoid placing neodymium magnets near electronic devices.

Warning!

In order for you to know how powerful neodymium magnets are and why they are so dangerous, read the article - Dangerous very strong neodymium magnets.