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neodymium magnets

We offer blue color magnetic Nd2Fe14B - our proposal. Practically all magnesy neodymowe on our website are available for immediate purchase (see the list). See the magnet price list for more details check the magnet price list

Magnet for treasure hunters F300 GOLD

Where to buy very strong neodymium magnet? Magnetic holders in solid and airtight steel enclosure are ideally suited for use in challenging weather conditions, including during snow and rain check

magnets with holders

Holders with magnets can be used to facilitate production processes, exploring underwater areas, or locating space rocks from gold more...

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FM Ruszt magnetyczny do leja fi 200 jednopoziomowy / N52 - magnetic filter

magnetic filter

Catalog no 110457

GTIN: 5906301812654

5

Weight

2250 g

Coating

[NiCuNi] nickel

1968.00 with VAT / pcs + price for transport

1600.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
1600.00 ZŁ
1968.00 ZŁ
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1360.00 ZŁ
1672.80 ZŁ

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Specifications and form of neodymium magnets can be analyzed using our our magnetic calculator.

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FM Ruszt magnetyczny do leja fi 200 jednopoziomowy / N52 - magnetic filter
Specification/characteristics FM Ruszt magnetyczny do leja fi 200 jednopoziomowy / N52 - magnetic filter
properties
values
Cat. no.
110457
GTIN
5906301812654
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Weight
2250 g [±0,1 mm]
Coating
[NiCuNi] nickel
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

The main task of the filter is catching iron filings from flour, sugar, granules, or regrind. They are also used in recycling, ceramics, and the chemical industry. They secure machine screws and molds from destruction by bolts, nuts, or wires.
The Standard version (approx. 6000-8000 Gauss) effectively catches screws, nails, washers, and larger filings. Power of 12000 Gs allows for separation of weakly magnetic steel and work-hardened material, which is key in the food industry. To meet rigorous quality standards, we recommend the highest available induction.
Filings should be wiped off with a cloth, glove, or blown off with compressed air after removing the grate from the installation. Since the magnets are very strong, filings stick firmly - you can use adhesive tape to remove them (tape method). Regular cleaning is key to maintaining separator efficiency and throughput.
We fulfill orders for round, square, and rectangular separators according to customer specifications. We deliver complete filtration solutions, ready to be plugged into the installation. We ensure short lead times and European quality of execution from acid-resistant steel.
We use highest quality stainless steel, safe for food products. Welds are ground and polished smooth, which prevents accumulation of bacteria and product. We help in meeting quality and audit standards in production plants.

Strengths and weaknesses of NdFeB magnets.

Besides their remarkable pulling force, neodymium magnets offer the following advantages:

  • They do not lose power, even after around 10 years – the drop in lifting capacity is only ~1% (theoretically),
  • They are extremely resistant to demagnetization induced by external magnetic fields,
  • In other words, due to the aesthetic surface of silver, the element gains visual value,
  • They show high magnetic induction at the operating surface, which improves attraction properties,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of exact forming as well as adjusting to atypical requirements,
  • Fundamental importance in innovative solutions – they are used in computer drives, brushless drives, diagnostic systems, as well as technologically advanced constructions.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Problematic aspects of neodymium magnets: weaknesses and usage proposals

  • At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
  • Due to limitations in creating nuts and complex forms in magnets, we propose using casing - magnetic mechanism.
  • Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Maximum holding power of the magnet – what it depends on?

Holding force of 0 kg is a measurement result performed under the following configuration:

  • using a base made of high-permeability steel, serving as a ideal flux conductor
  • whose transverse dimension is min. 10 mm
  • characterized by smoothness
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction perpendicular to the plane
  • at ambient temperature approx. 20 degrees Celsius

Key elements affecting lifting force

Effective lifting capacity is influenced by specific conditions, such as (from most important):

  • Distance – existence of foreign body (paint, dirt, air) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of maximum force).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Steel grade – ideal substrate is pure iron steel. Cast iron may generate lower lifting capacity.
  • Surface condition – smooth surfaces ensure maximum contact, which improves force. Uneven metal weaken the grip.
  • Thermal factor – hot environment weakens pulling force. Too high temperature can permanently damage the magnet.

* Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a small distance {between} the magnet’s surface and the plate reduces the load capacity.

Safety rules for work with NdFeB magnets

Product not for children

Neodymium magnets are not intended for children. Eating multiple magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and requires urgent medical intervention.

Compass and GPS

A strong magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Maintain magnets close to a smartphone to avoid damaging the sensors.

Crushing risk

Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Risk of cracking

Protect your eyes. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.

Health Danger

Patients with a heart stimulator have to maintain an safe separation from magnets. The magnetism can interfere with the operation of the implant.

Combustion hazard

Powder created during grinding of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

Protect data

Equipment safety: Neodymium magnets can damage data carriers and delicate electronics (heart implants, medical aids, timepieces).

Nickel coating and allergies

It is widely known that nickel (the usual finish) is a potent allergen. If you have an allergy, avoid direct skin contact or opt for encased magnets.

Heat sensitivity

Do not overheat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, look for HT versions (H, SH, UH).

Respect the power

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

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