e-mail: bok@dhit.pl

neodymium magnets

We offer blue color magnetic Nd2Fe14B - our store's offer. All magnesy neodymowe on our website are in stock for immediate purchase (check the list). See the magnet price list for more details check the magnet price list

Magnet for treasure hunters F300 GOLD

Where to purchase very strong magnet? Holders with magnets in solid and airtight enclosure are perfect for use in difficult weather conditions, including during rain and snow more...

magnetic holders

Magnetic holders can be applied to enhance production, underwater discoveries, or searching for meteorites made of ore check...

Enjoy delivery of your order on the day of purchase by 2:00 PM on business days.

Dhit sp. z o.o. logo
Product available shipping tomorrow

UMN 410x44x15 / N52 - knife holder

knife holder

Catalog no 200455

GTIN: 5906301813897

5

length [±0,1 mm]

410 mm

Width [±0,1 mm]

44 mm

Height [±0,1 mm]

15 mm

Weight

837 g

Load capacity

5 kg / 49.03 N

98.99 with VAT / pcs + price for transport

80.48 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
80.48 ZŁ
98.99 ZŁ
price from 5 pcs
75.65 ZŁ
93.05 ZŁ
price from 10 pcs
70.82 ZŁ
87.11 ZŁ

Looking for a better price?

Contact us by phone +48 888 99 98 98 if you prefer drop us a message through our online form through our site.
Force along with form of a neodymium magnet can be tested using our our magnetic calculator.

Same-day shipping for orders placed before 14:00.

UMN 410x44x15 / N52 - knife holder

Specification/characteristics UMN 410x44x15 / N52 - knife holder
properties
values
Cat. no.
200455
GTIN
5906301813897
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
length
410 mm [±0,1 mm]
Width
44 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
837 g [±0,1 mm]
Load capacity ~ ?
5 kg / 49.03 N
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
T
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
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

Magnetic strips for tools are practical solutions for storing steel accessories in kitchens, and also in workshops. Equipped with strong neodymium magnets (neodymium), that attract metal objects with a holding force from 1 kg to 7 kg, depending on the model. Mounting can be done using screws or adhesive tape, enabling easy mounting on a surface without drilling. In cooking areas, they are used for keeping knives, such as blades, spoons, ladles, ensuring quick access and order. In the garage, they are perfect for holding wrenches, screwdrivers, which improves tidiness and work safety. Advantages include durability, rust protection (especially with stainless steel 304 or 316) and simple maintenance. Some models, like Wüsthof, come in lengths from 20 cm to 60 cm, allowing customization. It’s recommended to clean off metal debris, because they can accumulate on the surface. Neodymium magnets are mechanically delicate and can disrupt electronic devices, therefore they should be kept away from electronic devices and magnetic cards. Note: magnets only work with steel objects. It’s advisable to opt for products from trusted manufacturers, such as Rig-Tig Magnetic, to ensure high quality and durability.

Advantages as well as disadvantages of neodymium magnets NdFeB.

Besides their stability, neodymium magnets are valued for these benefits:

  • They virtually do not lose strength, because even after ten years, the performance loss is only ~1% (according to literature),
  • Their ability to resist magnetic interference from external fields is impressive,
  • Thanks to the polished finish and silver coating, they have an visually attractive appearance,
  • They have extremely strong magnetic induction on the surface of the magnet,
  • These magnets tolerate extreme temperatures, often exceeding 230°C, when properly designed (in relation to form),
  • Thanks to the possibility in shaping and the capability to adapt to specific requirements, neodymium magnets can be created in various configurations, which expands their functional possibilities,
  • Significant impact in cutting-edge sectors – they are used in HDDs, electromechanical systems, clinical machines and high-tech tools,
  • Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in tiny dimensions, which makes them ideal in compact constructions

Disadvantages of NdFeB magnets:

  • They may fracture when subjected to a heavy impact. If the magnets are exposed to shocks, they should be placed in a steel housing. The steel housing, in the form of a holder, protects the magnet from breakage and additionally reinforces its overall strength,
  • 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 damp environment – during outdoor use, we recommend using encapsulated magnets, such as those made of non-metallic materials,
  • Limited ability to create precision features in the magnet – the use of a housing is recommended,
  • Safety concern linked to microscopic shards may arise, when consumed by mistake, which is notable in the health of young users. Furthermore, tiny components from these assemblies may disrupt scanning after being swallowed,
  • Higher purchase price is an important factor to consider compared to ceramic magnets, especially in budget-sensitive applications

Exercise Caution 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.

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.

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

Neodymium magnets produce strong magnetic fields that can destroy magnetic media such as floppy disks, video tapes, HDDs, credit cards, magnetic ID cards, cassette tapes, or other devices. They can also damage videos, televisions, CRT computer monitors. Do not forget to keep neodymium magnets away from these electronic devices.

Keep neodymium magnets away from people with pacemakers.

Neodymium magnets produce strong magnetic fields that can interfere 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 magnetic are characterized by their fragility, which can cause them to 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. At the moment of connection between the magnets, tiny sharp metal pieces can be propelled in various directions at high speed. Eye protection is recommended.

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

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

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

Magnets may crack or crumble with uncontrolled joining to each other. You can't approach them to each other. At a distance less than 10 cm you should have them extremely firmly.

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.

Neodymium magnets can demagnetize at high temperatures.

Although magnets have shown to retain their effectiveness up to 80°C or 175°F, this temperature may vary depending on the type of material, shape, and intended use of the magnet.

  Neodymium magnets should not be in the vicinity youngest children.

Neodymium magnets are not toys. You cannot allow them to become toys for children. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

Warning!

To raise awareness of why neodymium magnets are so dangerous, read the article titled How dangerous are strong neodymium magnets?.

Dhit sp. z o.o. logo

e-mail: bok@dhit.pl

tel: +48 888 99 98 98