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neodymium magnets

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SM 32x450 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130465

GTIN: 5906301813361

0

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

450 mm

Weight

2490 g

1414.50 with VAT / pcs + price for transport

1150.00 ZŁ net + 23% VAT / pcs

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price from 1 pcs
1150.00 ZŁ
1414.50 ZŁ
price from 5 pcs
1035.00 ZŁ
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Lifting power along with shape of magnetic components can be calculated with our online calculation tool.

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SM 32x450 [2xM8] / N52 - magnetic separator

Specification/characteristics SM 32x450 [2xM8] / N52 - magnetic separator
properties
values
Cat. no.
130465
GTIN
5906301813361
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
32 mm [±0,1 mm]
Height
450 mm [±0,1 mm]
Weight
2490 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
T
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
Hv
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

It is the heart of every magnetic filter used in industry. It is installed in chutes and hoppers to protect production machinery. High magnetic induction allows catching the finest iron particles.
The outer layer is polished acid-resistant steel, approved for food contact. The core is a magnetic circuit generating high induction. Thanks to this, the rod is durable and hygienic.
Metal filings stick very firmly to the surface, so cleaning requires strength or a trick. You can use compressed air or special non-magnetic strippers. For easier maintenance, consider a system with a cleaning sleeve.
The more Gauss, the smaller and weakly magnetic particles will be caught. The economical version handles large metal pieces well. For the food and precision industry, we recommend the highest parameters.
Yes, as a manufacturer, we make rods of any length and diameter (standard is 25mm and 32mm). We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat studs, or handles. Contact us for a quote on non-standard dimensions.

Advantages as well as disadvantages of neodymium magnets NdFeB.

In addition to their exceptional strength, neodymium magnets offer the following advantages:

  • Their power is maintained, and after approximately 10 years, it drops only by ~1% (according to research),
  • They protect against demagnetization induced by external electromagnetic environments very well,
  • Because of the reflective layer of silver, the component looks visually appealing,
  • Magnetic induction on the surface of these magnets is very strong,
  • These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to build),
  • With the option for fine forming and targeted design, these magnets can be produced in numerous shapes and sizes, greatly improving engineering flexibility,
  • Key role in modern technologies – they are utilized in data storage devices, rotating machines, medical equipment and sophisticated instruments,
  • Compactness – despite their small size, they generate strong force, making them ideal for precision applications

Disadvantages of NdFeB magnets:

  • They are prone to breaking when subjected to a sudden impact. If the magnets are exposed to mechanical hits, they should be placed in a protective case. The steel housing, in the form of a holder, protects the magnet from damage , and at the same time reinforces its overall robustness,
  • Magnets lose field strength when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible performance loss (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,
  • They rust in a humid environment, especially when used outside, we recommend using moisture-resistant magnets, such as those made of plastic,
  • The use of a protective casing or external holder is recommended, since machining fine details in neodymium magnets is restricted,
  • Safety concern from tiny pieces may arise, if ingested accidentally, which is significant in the context of child safety. Additionally, minuscule fragments from these products may disrupt scanning when ingested,
  • In cases of large-volume purchasing, neodymium magnet cost is a challenge,

Optimal lifting capacity of a neodymium magnetwhat contributes to it?

The given pulling force of the magnet means the maximum force, calculated in the best circumstances, specifically:

  • using a steel plate with low carbon content, acting as a magnetic circuit closure
  • having a thickness of no less than 10 millimeters
  • with a refined outer layer
  • with zero air gap
  • under perpendicular detachment force
  • in normal thermal conditions

What influences lifting capacity in practice

Practical lifting force is determined by factors, listed from the most critical to the less significant:

  • 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.

* Lifting capacity was assessed by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the lifting capacity is smaller. Moreover, even a slight gap {between} the magnet’s surface and the plate reduces the holding force.

Safety Precautions

Neodymium magnets are primarily characterized by their significant internal force. They attract to each other, and any object that comes in their way will be affected.

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

Neodymium magnets are among the most powerful magnets on Earth. The astonishing force they generate between each other can shock you.

To handle magnets properly, it is best to familiarize yourself with our information beforehand. This will help you avoid significant harm to your body and the magnets themselves.

Avoid bringing neodymium magnets close to a phone or GPS.

Magnetic fields interfere with compasses and magnetometers used in navigation for air and sea transport, as well as internal compasses of smartphones and GPS devices.

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. Remember not to place neodymium magnets close to these electronic devices.

Neodymium magnetic are incredibly fragile, they easily break as well as can crumble.

Neodymium magnets are characterized by considerable fragility. Neodymium magnetic are made of metal and coated with a shiny nickel, but they are not as durable as steel. At the moment of collision between the magnets, small metal fragments can be dispersed in different directions.

Neodymium magnets are not recommended for people with pacemakers.

In the case of neodymium magnets, there is a strong magnetic field. As a result, it interferes with the operation of a heart pacemaker. Even if the magnetic field does not affect the device, it can damage its components or deactivate the entire device.

Neodymium magnets can become demagnetized at high temperatures.

Although magnets have demonstrated their effectiveness up to 80°C or 175°F, the temperature can vary depending on the type, shape, and intended use of the specific magnet.

Dust and powder from neodymium magnets are flammable.

Avoid drilling or mechanical processing of neodymium magnets. Once crushed into fine powder or dust, this material becomes highly flammable.

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

 It is important to maintain neodymium magnets out of reach from children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. Small magnets pose a serious choking hazard or can attract to each other in the intestines. In such cases, the only solution is to undergo surgery to remove the magnets, and otherwise, it can even lead to death.

Warning!

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

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98