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neodymium magnets

We provide blue color magnetic Nd2Fe14B - our store's offer. Practically all "neodymium magnets" in our store are available for immediate purchase (check the list). Check out the magnet pricing for more details check the magnet price list

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SMZR 32x200 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140240

GTIN: 5906301813484

5

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

200 mm

Weight

1210 g

615.00 with VAT / pcs + price for transport

500.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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SMZR 32x200 / N52 - magnetic separator with handle
Specification/characteristics SMZR 32x200 / N52 - magnetic separator with handle
properties
values
Cat. no.
140240
GTIN
5906301813484
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
1210 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 sintered neodymium magnets Nd2Fe14B at 20°C

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

A manual separator is a basic tool for quick identification and sorting of metals. Thanks to it, you can easily and quickly assess the value of scrap and avoid mistakes. It can be used to collect scattered nails and screws from hard-to-reach places.
A neodymium magnet attracts only ferromagnetic metals, such as ordinary steel (black) and cast iron. Lack of reaction (attraction) means the tested item is made of non-magnetic material.
Neodymium separators are much lighter and many times stronger than traditional ferrite ones. Thanks to this, work is more comfortable, and detection faster and more certain. This is a modern solution displacing heavy and weak ferrite magnets.
The construction consists of a hermetic can protecting the magnet and an ergonomic handle. Tool ergonomics are key with frequent use by employees. Thanks to such an armored build, the separator is resistant to difficult conditions prevailing at a scrap yard.
Standard manual separators (such as SMZR 32x200 / N52) do not have a release mechanism and require manual cleaning. We also offer versions where pulling the handle automatically drops collected material. In the case of strong magnets, it is easiest to slide the metal to the side of the housing instead of tearing it straight off.

Pros and cons of NdFeB magnets.

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

  • They retain attractive force for around ten years – the drop is just ~1% (in theory),
  • Magnets very well defend themselves against demagnetization caused by ambient magnetic noise,
  • In other words, due to the metallic layer of gold, the element gains visual value,
  • Neodymium magnets create maximum magnetic induction on a small surface, which allows for strong attraction,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Due to the option of accurate forming and adaptation to specialized solutions, magnetic components can be manufactured in a wide range of geometric configurations, which increases their versatility,
  • Versatile presence in modern technologies – they find application in data components, brushless drives, medical equipment, as well as industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages of neodymium magnets:

  • They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • Due to limitations in realizing threads and complicated shapes in magnets, we recommend using a housing - magnetic mount.
  • Health risk related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these products can complicate diagnosis medical after entering the body.
  • Due to expensive raw materials, their price exceeds standard values,

Maximum lifting force for a neodymium magnet – what affects it?

The load parameter shown represents the limit force, measured under optimal environment, meaning:

  • with the application of a yoke made of special test steel, guaranteeing maximum field concentration
  • with a cross-section minimum 10 mm
  • characterized by smoothness
  • under conditions of no distance (metal-to-metal)
  • under perpendicular force direction (90-degree angle)
  • at temperature room level

Determinants of lifting force in real conditions

Holding efficiency is influenced by working environment parameters, mainly (from most important):

  • Gap (between the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Base massiveness – insufficiently thick plate does not close the flux, causing part of the flux to be escaped into the air.
  • Plate material – low-carbon steel attracts best. Alloy steels lower magnetic permeability and holding force.
  • Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
  • Thermal environment – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

* Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a slight gap {between} the magnet’s surface and the plate reduces the holding force.

Warnings

Do not underestimate power

Be careful. Neodymium magnets act from a distance and connect with massive power, often faster than you can react.

Sensitization to coating

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction appears, immediately stop working with magnets and use protective gear.

Crushing force

Large magnets can smash fingers in a fraction of a second. Under no circumstances put your hand between two strong magnets.

Material brittleness

NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Collision of two magnets leads to them shattering into shards.

Thermal limits

Keep cool. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).

This is not a toy

Product intended for adults. Tiny parts can be swallowed, leading to severe trauma. Keep away from children and animals.

Compass and GPS

A strong magnetic field negatively affects the functioning of magnetometers in phones and navigation systems. Keep magnets near a device to avoid damaging the sensors.

Keep away from computers

Do not bring magnets close to a purse, laptop, or screen. The magnetism can destroy these devices and erase data from cards.

Life threat

People with a pacemaker must maintain an safe separation from magnets. The magnetism can stop the functioning of the implant.

Flammability

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.

Important!

Need more info? Read our article: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98