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neodymium magnets

We offer blue color magnetic Nd2Fe14B - our store's offer. All "neodymium magnets" in our store are available for immediate delivery (check the list). See the magnet price list for more details see the magnet price list

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MPL 5x5x1.5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020172

GTIN: 5906301811787

5

length [±0,1 mm]

5 mm

Width [±0,1 mm]

5 mm

Height [±0,1 mm]

1.5 mm

Weight

0.28 g

Magnetization Direction

↑ axial

Load capacity

0.59 kg / 5.79 N

Magnetic Induction

293.49 mT

Coating

[NiCuNi] nickel

0.1845 with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

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Weight as well as shape of neodymium magnets can be analyzed using our magnetic calculator.

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MPL 5x5x1.5 / N38 - lamellar magnet
Specification/characteristics MPL 5x5x1.5 / N38 - lamellar magnet
properties
values
Cat. no.
020172
GTIN
5906301811787
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
length
5 mm [±0,1 mm]
Width
5 mm [±0,1 mm]
Height
1.5 mm [±0,1 mm]
Weight
0.28 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
0.59 kg / 5.79 N
Magnetic Induction ~ ?
293.49 mT
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

properties
values
units
remenance Br [Min. - Max.] ?
12.2-12.6
kGs
remenance Br [Min. - Max.] ?
1220-1260
T
coercivity bHc ?
10.8-11.5
kOe
coercivity bHc ?
860-915
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.] ?
36-38
BH max MGOe
energy density [Min. - Max.] ?
287-303
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

Model MPL 5x5x1.5 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. This magnetic block with a force of 5.79 N is ready for shipment in 24h, allowing for rapid realization of your project. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.
The key to success is shifting the magnets along their largest connection plane (using e.g., the edge of a table), which is easier than trying to tear them apart directly. Watch your fingers! Magnets with a force of 0.59 kg can pinch very hard and cause hematomas. Using a screwdriver risks destroying the coating and permanently cracking the magnet.
Plate magnets MPL 5x5x1.5 / N38 are the foundation for many industrial devices, such as filters catching filings and linear motors. They work great as fasteners under tiles, wood, or glass. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.
For mounting flat magnets MPL 5x5x1.5 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. Remember to clean and degrease the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.
Standardly, the MPL 5x5x1.5 / N38 model is magnetized axially (dimension 1.5 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. This is the most popular configuration for block magnets used in separators and holders.
This model is characterized by dimensions 5x5x1.5 mm, which, at a weight of 0.28 g, makes it an element with impressive energy density. The key parameter here is the lifting capacity amounting to approximately 0.59 kg (force ~5.79 N), which, with such a compact shape, proves the high power of the material. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages as well as disadvantages of rare earth magnets.

Besides their exceptional field intensity, neodymium magnets offer the following advantages:

  • Their power is maintained, and after approximately 10 years it decreases only by ~1% (theoretically),
  • Neodymium magnets prove to be highly resistant to magnetic field loss caused by external interference,
  • A magnet with a shiny silver surface has an effective appearance,
  • Magnetic induction on the working part of the magnet turns out to be extremely intense,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Possibility of exact machining as well as modifying to specific needs,
  • Universal use in electronics industry – they are commonly used in magnetic memories, electric drive systems, medical equipment, and other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages of neodymium magnets:

  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only shields the magnet but also improves its resistance to damage
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing nuts and complex shapes in magnets, we recommend using casing - magnetic mount.
  • Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. Additionally, small components of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Best holding force of the magnet in ideal parameterswhat affects it?

The declared magnet strength concerns the limit force, obtained under ideal test conditions, specifically:

  • using a base made of low-carbon steel, serving as a circuit closing element
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • with a surface perfectly flat
  • with direct contact (without impurities)
  • for force applied at a right angle (pull-off, not shear)
  • at standard ambient temperature

Lifting capacity in practice – influencing factors

Holding efficiency impacted by specific conditions, such as (from most important):

  • Air gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or debris).
  • Angle of force application – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Material type – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
  • Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

* Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance {between} the magnet’s surface and the plate lowers the holding force.

Precautions when working with neodymium magnets

Product not for children

These products are not intended for children. Eating multiple magnets can lead to them pinching intestinal walls, which poses a severe health hazard and necessitates immediate surgery.

Threat to navigation

Be aware: rare earth magnets generate a field that disrupts sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.

Magnetic media

Data protection: Strong magnets can damage payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Magnets are brittle

Neodymium magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them cracking into small pieces.

Allergic reactions

Studies show that the nickel plating (the usual finish) is a potent allergen. If you have an allergy, refrain from touching magnets with bare hands or select versions in plastic housing.

Crushing force

Protect your hands. Two large magnets will join immediately with a force of massive weight, crushing everything in their path. Be careful!

Fire warning

Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Handling guide

Use magnets consciously. Their huge power can shock even experienced users. Be vigilant and respect their force.

Warning for heart patients

Health Alert: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Permanent damage

Avoid heat. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Important!

Details about risks in the article: Magnet Safety Guide.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98