tel: +48 888 99 98 98

neodymium magnets

We offer red color magnetic Nd2Fe14B - our store's offer. Practically all "magnets" on our website are available for immediate delivery (see the list). Check out the magnet price list for more details see the magnet price list

Magnets for treasure hunters F300 GOLD

Where to purchase very strong neodymium magnet? Magnetic holders in airtight, solid steel enclosure are perfect for use in difficult weather conditions, including during snow and rain see

magnetic holders

Holders with magnets can be applied to enhance production, underwater discoveries, or locating space rocks made of metal see...

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

Dhit sp. z o.o.
Product available Ships in 2 days

MPL 5x5x1.5 / N38 - lamellar magnet

lamellar magnet

Catalog no 020172

GTIN: 5906301811787

5.00

length

5 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

1.5 mm [±0,1 mm]

Weight

0.28 g

Magnetization Direction

↑ axial

Load capacity

0.71 kg / 6.98 N

Magnetic Induction

293.49 mT

Coating

[NiCuNi] Nickel

0.1845 with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
0.1500 ZŁ
0.1845 ZŁ
price from 4000 pcs
0.1410 ZŁ
0.1734 ZŁ
price from 17000 pcs
0.1320 ZŁ
0.1624 ZŁ

Do you have questions?

Call us now +48 22 499 98 98 if you prefer get in touch via request form the contact form page.
Parameters and form of magnets can be analyzed using our magnetic mass calculator.

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

MPL 5x5x1.5 / N38 - lamellar magnet

Specification / characteristics MPL 5x5x1.5 / N38 - lamellar magnet

properties
properties values
Cat. no. 020172
GTIN 5906301811787
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
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
Magnetization Direction ↑ axial
Load capacity ~ ? 0.71 kg / 6.98 N
Magnetic Induction ~ ? 293.49 mT
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 5x5x1.5 / N38 - lamellar magnet
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

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

Engineering modeling of the product - data

Presented values are the direct effect of a mathematical simulation. Results rely on models for the class NdFeB. Real-world conditions might slightly deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static pull force (pull vs gap) - characteristics
MPL 5x5x1.5 / N38
Distance (mm) Induction (Gauss) / mT Pull Force (kg) Risk Status
0 mm 3958 Gs
395.8 mT
0.71 kg / 710.0 g
7.0 N
weak grip
1 mm 2748 Gs
274.8 mT
0.34 kg / 342.2 g
3.4 N
weak grip
2 mm 1658 Gs
165.8 mT
0.12 kg / 124.5 g
1.2 N
weak grip
5 mm 285 Gs
28.5 mT
0.00 kg / 3.7 g
0.0 N
weak grip
10 mm 54 Gs
5.4 mT
0.00 kg / 0.1 g
0.0 N
weak grip
15 mm 18 Gs
1.8 mT
0.00 kg / 0.0 g
0.0 N
weak grip
20 mm 8 Gs
0.8 mT
0.00 kg / 0.0 g
0.0 N
weak grip
30 mm 3 Gs
0.3 mT
0.00 kg / 0.0 g
0.0 N
weak grip
50 mm 1 Gs
0.1 mT
0.00 kg / 0.0 g
0.0 N
weak grip
Table 2: Vertical assembly (shearing) - vertical pull
MPL 5x5x1.5 / N38
Surface type Friction coefficient / % Mocy Max load (kg)
Raw steel
µ = 0.3 30% Nominalnej Siły
0.21 kg / 213.0 g
2.1 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
0.14 kg / 142.0 g
1.4 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
0.07 kg / 71.0 g
0.7 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
0.36 kg / 355.0 g
3.5 N
Table 3: Steel thickness (substrate influence) - power losses
MPL 5x5x1.5 / N38
Steel thickness (mm) % power Real pull force (kg)
0.5 mm
10%
0.07 kg / 71.0 g
0.7 N
1 mm
25%
0.18 kg / 177.5 g
1.7 N
2 mm
50%
0.36 kg / 355.0 g
3.5 N
5 mm
100%
0.71 kg / 710.0 g
7.0 N
10 mm
100%
0.71 kg / 710.0 g
7.0 N
Table 4: Working in heat (material behavior) - thermal limit
MPL 5x5x1.5 / N38
Ambient temp. (°C) Power loss Remaining pull Status
20 °C 0.0% 0.71 kg / 710.0 g
7.0 N
OK
40 °C -2.2% 0.69 kg / 694.4 g
6.8 N
OK
60 °C -4.4% 0.68 kg / 678.8 g
6.7 N
OK
80 °C -6.6% 0.66 kg / 663.1 g
6.5 N
100 °C -28.8% 0.51 kg / 505.5 g
5.0 N
Table 5: Two magnets (attraction) - forces in the system
MPL 5x5x1.5 / N38
Gap (mm) Attraction (kg) (N-S) Repulsion (kg) (N-N)
0 mm 1.07 kg / 1065.0 g
10.4 N
N/A
2 mm 0.18 kg / 180.0 g
1.8 N
0.17 kg / 168.0 g
1.6 N
5 mm 0.00 kg / 0.0 g
0.0 N
0.00 kg / 0.0 g
0.0 N
10 mm 0.00 kg / 0.0 g
0.0 N
0.00 kg / 0.0 g
0.0 N
20 mm 0.00 kg / 0.0 g
0.0 N
0.00 kg / 0.0 g
0.0 N
50 mm 0.00 kg / 0.0 g
0.0 N
0.00 kg / 0.0 g
0.0 N
Table 6: Protective zones (implants) - warnings
MPL 5x5x1.5 / N38
Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 2.5 cm
Hearing aid 10 Gs (1.0 mT) 2.0 cm
Timepiece 20 Gs (2.0 mT) 1.5 cm
Phone / Smartphone 40 Gs (4.0 mT) 1.5 cm
Remote 50 Gs (5.0 mT) 1.5 cm
Payment card 400 Gs (40.0 mT) 0.5 cm
HDD hard drive 600 Gs (60.0 mT) 0.5 cm
Table 7: Collisions (cracking risk) - warning
MPL 5x5x1.5 / N38
Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 50.79 km/h
(14.11 m/s)
0.03 J
30 mm 87.96 km/h
(24.43 m/s)
0.08 J
50 mm 113.56 km/h
(31.54 m/s)
0.14 J
100 mm 160.60 km/h
(44.61 m/s)
0.28 J
Table 8: Coating parameters (durability)
MPL 5x5x1.5 / N38
Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
Table 9: Underwater work (magnet fishing)
MPL 5x5x1.5 / N38
Environment Effective steel pull Effect
Air (land) 0.71 kg Standard
Water (riverbed) 0.81 kg
(+0.10 kg Buoyancy gain)
+14.5%
Rust risk: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

See also products

Model MPL 5x5x1.5 / N38 features a flat shape and professional pulling force, making it an ideal solution for building separators and machines. As a block magnet with high power (approx. 0.71 kg), this product is available immediately from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.
Separating strong flat magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. Watch your fingers! Magnets with a force of 0.71 kg can pinch very hard and cause hematomas. Never use metal tools for prying, as the brittle NdFeB material may chip and damage your eyes.
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 workshop organization 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. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).
Standardly, the MPL 5x5x1.5 / N38 model is magnetized through the thickness (dimension 1.5 mm), which means that the N and S poles are located on its largest, flat surfaces. In practice, this means that this magnet has the greatest attraction force on its main planes (5x5 mm), which is ideal for flat mounting. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.
The presented product is a neodymium magnet with precisely defined parameters: 5 mm (length), 5 mm (width), and 1.5 mm (thickness). It is a magnetic block with dimensions 5x5x1.5 mm and a self-weight of 0.28 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Pros as well as cons of neodymium magnets.

Besides their magnetic performance, neodymium magnets are valued for these benefits:

  • Their strength is durable, and after around 10 years it decreases only by ~1% (according to research),
  • They feature excellent resistance to weakening of magnetic properties when exposed to external fields,
  • In other words, due to the smooth layer of gold, the element gains visual value,
  • Magnets have very high magnetic induction on the outer side,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures approaching 230°C and above...
  • Possibility of precise modeling as well as adjusting to defined requirements,
  • Fundamental importance in innovative solutions – they are commonly used in magnetic memories, electric motors, advanced medical instruments, also other advanced devices.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Drawbacks and weaknesses of neodymium magnets and ways of using them

  • To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complex shapes in magnets, we propose using casing - magnetic holder.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Detachment force of the magnet in optimal conditionswhat it depends on?

Magnet power was defined for optimal configuration, including:

  • with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
  • with a cross-section no less than 10 mm
  • with an ground contact surface
  • under conditions of no distance (metal-to-metal)
  • during detachment in a direction vertical to the mounting surface
  • at ambient temperature room level

Practical lifting capacity: influencing factors

Please note that the application force may be lower subject to elements below, starting with the most relevant:

  • Distance (between the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to paint, rust or debris).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Base massiveness – too thin steel does not close the flux, causing part of the power to be wasted to the other side.
  • Material composition – not every steel reacts the same. High carbon content worsen the attraction effect.
  • Smoothness – full contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).

* Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a minimal clearance {between} the magnet’s surface and the plate lowers the lifting capacity.

Warnings

Skin irritation risks

Certain individuals suffer from a sensitization to nickel, which is the common plating for NdFeB magnets. Prolonged contact might lead to dermatitis. We recommend wear safety gloves.

Power loss in heat

Avoid heat. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, look for HT versions (H, SH, UH).

Threat to navigation

Remember: neodymium magnets produce a field that disrupts precision electronics. Keep a safe distance from your phone, tablet, and navigation systems.

Medical implants

Patients with a ICD should keep an safe separation from magnets. The magnetism can interfere with the functioning of the implant.

Magnets are brittle

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

Caution required

Handle with care. Neodymium magnets attract from a distance and connect with huge force, often quicker than you can react.

Swallowing risk

Strictly store magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are very dangerous.

Dust is flammable

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.

Data carriers

Do not bring magnets near a purse, laptop, or screen. The magnetism can permanently damage these devices and erase data from cards.

Crushing force

Pinching hazard: The attraction force is so great that it can result in hematomas, pinching, and broken bones. Use thick gloves.

Danger!

Learn more about risks in the article: Magnet Safety Guide.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98