Product available shipping tomorrow

UMN 410x44x15 / N52 - knife holder

knife holder

Catalog no 200455

GTIN: 5906301813897

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 ZŁ 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

Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to talk magnets?

Give us a call +48 888 99 98 98 if you prefer send us a note using inquiry form through our site.
Force and structure of a neodymium magnet can be estimated using our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

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

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

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

Produkt dostępny wysyłka jutro!

UMS 42x12.5x6.5x9 / N38 - conical magnetic holder

27.06 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MP 60x20x5 / N38 - ring magnet

47.99 ZŁ / pcs

Produkt dostępny wysyłka jutro!

UMT 12x20 green / N38 - board holder

1.89 ZŁ / pcs

Produkt dostępny wysyłka jutro!

MW 8x8 / N38 - cylindrical magnet

1.05 ZŁ / pcs

Holders with neodymium magnets for knives are practical accessories for storing metal accessories in the kitchen, as well as in garages. They contain powerful magnets (neodymium), that hold metal objects with a holding force up to 7 kg, depending on their size and quality. Mounting is done using screws or adhesive tape, which allows easy mounting on a surface without drilling. In the kitchen, they are used for storing knives, such as knives, spatulas, ensuring quick access and order. In the workshop, they work great for organizing wrenches, screwdrivers, which improves tidiness and work safety. Key benefits are long-lasting performance, rust protection (especially with stainless steel 304 or 316) and simple maintenance. Selected versions, like Zeller, are available in sizes ranging from 20–60 cm, allowing customization. It is important to clean off fine metal particles, because they may collect on the surface. Strong magnets can be brittle and may interfere with electronics, therefore keep them away from phones and credit cards. Important: holders only function with ferromagnetic materials. It is recommended to choose products from trusted manufacturers, like Fiskars, to guarantee quality and durability.

Advantages and disadvantages of neodymium magnets NdFeB.

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

They do not lose their power approximately 10 years – the reduction of strength is only ~1% (theoretically),
They remain magnetized despite exposure to magnetic noise,
Thanks to the shiny finish and gold coating, they have an visually attractive appearance,
They have exceptional magnetic induction on the surface of the magnet,
These magnets tolerate high temperatures, often exceeding 230°C, when properly designed (in relation to form),
Thanks to the freedom in shaping and the capability to adapt to unique requirements, neodymium magnets can be created in different geometries, which increases their functional possibilities,
Significant impact in cutting-edge sectors – they are utilized in computer drives, rotating machines, healthcare devices along with technologically developed systems,
Relatively small size with high magnetic force – neodymium magnets offer impressive pulling strength in small dimensions, which makes them ideal in miniature devices

Disadvantages of rare earth magnets:

They are prone to breaking when subjected to a strong impact. If the magnets are exposed to mechanical hits, we recommend in a protective enclosure. The steel housing, in the form of a holder, protects the magnet from damage and additionally strengthens its overall durability,
Magnets lose pulling force when exposed to temperatures exceeding 80°C. In most cases, this leads to irreversible magnetic decay (influenced by the magnet’s form). To address this, we provide [AH] models with superior thermal resistance, able to operate even at 230°C or more,
Due to corrosion risk in humid conditions, it is wise to use sealed magnets made of synthetic coating for outdoor use,
Using a cover – such as a magnetic holder – is advised due to the restrictions in manufacturing complex structures directly in the magnet,
Potential hazard linked to microscopic shards may arise, when consumed by mistake, which is significant in the health of young users. It should also be noted that tiny components from these assemblies might disrupt scanning if inside the body,
Higher purchase price is an important factor to consider compared to ceramic magnets, especially in budget-sensitive applications

Handle Neodymium Magnets with Caution

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

On our website, you can find information on how to use neodymium magnets. This will help you avoid injuries and prevent damage to the magnets.

Neodymium magnets are fragile as well as can easily crack as well as get damaged.

Neodymium magnets are delicate as well as will crack if allowed to collide with each other, even from a distance of a few centimeters. 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.

Never bring neodymium magnets close to a phone and GPS.

Magnetic fields can interfere with compasses and magnetometers used in aviation and maritime navigation, as well as internal compasses of smartphones and GPS devices. There are neodymium magnets in every smartphone, for example, in the microphone and speakers.

People with pacemakers are advised to avoid neodymium magnets.

Neodymium magnets generate strong magnetic fields. As a result, they interfere with the operation of a pacemaker. This happens because such devices have a function to deactivate them in a magnetic field.

Neodymium magnets should not be around youngest children.

Not all neodymium magnets are toys, so do not let children play with them. In such a situation, surgery is necessary to remove them. In the worst case scenario, it can result in death.

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.

The magnet is coated with nickel. Therefore, exercise caution if you have an 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, you can try wearing gloves or simply avoid direct contact with nickel-plated neodymium magnets.

It is crucial not to allow the magnets to pinch together uncontrollably or place your fingers in their path as they attract to each other.

Magnets will crack or alternatively crumble with uncontrolled joining to each other. You can't move them to each other. At a distance less than 10 cm you should hold them extremely firmly.

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. Avoid placing neodymium magnets in close proximity to electronic devices.

Neodymium magnets can become demagnetized at high temperatures.

In certain circumstances, Neodymium magnets can lose their magnetism when subjected to high temperatures.

Exercise caution!

In order to illustrate why neodymium magnets are so dangerous, see the article - How very dangerous are very powerful neodymium magnets?.