MPL 12.5x12.5x5 / N38 - lamellar magnet - ujęcie 2

Product available Ships tomorrow

MPL 12.5x12.5x5 / N38 - lamellar magnet

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

lamellar magnet

Catalog no 020117

GTIN/EAN: 5906301811237

5.00

length

12.5 mm [±0,1 mm]

Width

12.5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

5.86 g

Magnetization Direction

↑ axial

Load capacity

4.84 kg / 47.51 N

Magnetic Induction

360.91 mT / 3609 Gs

Coating

[NiCuNi] Nickel

technical details »

2.83 ZŁ with VAT / pcs + price for transport

2.30 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

2.30 ZŁ

2.83 ZŁ

price from 300 pcs

2.16 ZŁ

2.66 ZŁ

price from 1100 pcs

2.02 ZŁ

2.49 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Looking for a better price?

Pick up the phone and ask +48 22 499 98 98 if you prefer drop us a message by means of our online form the contact page.
Weight as well as appearance of magnetic components can be checked with our our magnetic calculator.

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

Technical - MPL 12.5x12.5x5 / N38 - lamellar magnet

Specification / characteristics - MPL 12.5x12.5x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020117
GTIN/EAN	5906301811237
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	12.5 mm [±0,1 mm]
Width	12.5 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	5.86 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.84 kg / 47.51 N
Magnetic Induction ~ ?	360.91 mT / 3609 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 12.5x12.5x5 / N38 - lamellar magnet

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
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 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Physical simulation of the assembly - technical parameters

The following data constitute the direct effect of a physical simulation. Values rely on algorithms for the class Nd₂Fe₁₄B. Operational conditions may differ. Use these calculations as a supplementary guide during assembly planning.

Table 1: Static force (force vs gap) - power drop
MPL 12.5x12.5x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3608 Gs 360.8 mT	4.84 kg / 10.67 pounds 4840.0 g / 47.5 N	medium risk
1 mm	3156 Gs 315.6 mT	3.70 kg / 8.17 pounds 3704.2 g / 36.3 N	medium risk
2 mm	2671 Gs 267.1 mT	2.65 kg / 5.85 pounds 2653.8 g / 26.0 N	medium risk
3 mm	2211 Gs 221.1 mT	1.82 kg / 4.01 pounds 1817.7 g / 17.8 N	weak grip
5 mm	1464 Gs 146.4 mT	0.80 kg / 1.76 pounds 797.6 g / 7.8 N	weak grip
10 mm	538 Gs 53.8 mT	0.11 kg / 0.24 pounds 107.6 g / 1.1 N	weak grip
15 mm	234 Gs 23.4 mT	0.02 kg / 0.05 pounds 20.4 g / 0.2 N	weak grip
20 mm	119 Gs 11.9 mT	0.01 kg / 0.01 pounds 5.3 g / 0.1 N	weak grip
30 mm	42 Gs 4.2 mT	0.00 kg / 0.00 pounds 0.7 g / 0.0 N	weak grip
50 mm	10 Gs 1.0 mT	0.00 kg / 0.00 pounds 0.0 g / 0.0 N	weak grip

Pulling power drops drastically per each millimeter of spacing. Note that even a microscopic distance (e.g., contamination, paint, dust) noticeably weakens the grip. Magnets work strongest at the point of direct contact; air break kills the power. See how flashily the parameters plummet, when the magnet does not touch flatly to the steel surface. When planning the mounting, avoid unnecessary gaps.

Table 2: Sliding force (vertical surface)
MPL 12.5x12.5x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.97 kg / 2.13 pounds 968.0 g / 9.5 N
1 mm	Stal (~0.2)	0.74 kg / 1.63 pounds 740.0 g / 7.3 N
2 mm	Stal (~0.2)	0.53 kg / 1.17 pounds 530.0 g / 5.2 N
3 mm	Stal (~0.2)	0.36 kg / 0.80 pounds 364.0 g / 3.6 N
5 mm	Stal (~0.2)	0.16 kg / 0.35 pounds 160.0 g / 1.6 N
10 mm	Stal (~0.2)	0.02 kg / 0.05 pounds 22.0 g / 0.2 N
15 mm	Stal (~0.2)	0.00 kg / 0.01 pounds 4.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section defines the estimated shear load necessary to cause the downward movement of the magnet vertically along a vertical steel wall (considering typical friction coefficient). This parameter is a function of the separation distance between the magnet and the metal.

Table 3: Wall mounting (sliding) - vertical pull
MPL 12.5x12.5x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.45 kg / 3.20 pounds 1452.0 g / 14.2 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.97 kg / 2.13 pounds 968.0 g / 9.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.48 kg / 1.07 pounds 484.0 g / 4.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.42 kg / 5.34 pounds 2420.0 g / 23.7 N

When placing a holder on a upright wall (e.g., a fridge), it will maintain just approx. 1/5 of nominal attraction strength. Gravity as well as a weak degree of grip mean that products slip faster than they pull off. Planning a wall mount? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will slip down under a significantly smaller weight. Using a rubber layer can drastically raise the stability.

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 12.5x12.5x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.48 kg / 1.07 pounds 484.0 g / 4.7 N
1 mm	25%	1.21 kg / 2.67 pounds 1210.0 g / 11.9 N
2 mm	50%	2.42 kg / 5.34 pounds 2420.0 g / 23.7 N
3 mm	75%	3.63 kg / 8.00 pounds 3630.0 g / 35.6 N
5 mm	100%	4.84 kg / 10.67 pounds 4840.0 g / 47.5 N
10 mm	100%	4.84 kg / 10.67 pounds 4840.0 g / 47.5 N
11 mm	100%	4.84 kg / 10.67 pounds 4840.0 g / 47.5 N
12 mm	100%	4.84 kg / 10.67 pounds 4840.0 g / 47.5 N

A thin metal plate is not enough to conduct the entire magnetic field, which weakens actual performance of the holder. If you install a neodymium to a thin surface, the flux will penetrate right through and the holding will be smaller. To achieve 100% of this magnet's power, you require a sufficiently solid element of steel. The saturation effect means that on sheet metal structures (e.g., appliance housings), the holder works worse. We suggest choosing the steel thickness based on the following data.

Table 5: Working in heat (material behavior) - power drop
MPL 12.5x12.5x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.84 kg / 10.67 pounds 4840.0 g / 47.5 N	OK
40 °C	-2.2%	4.73 kg / 10.44 pounds 4733.5 g / 46.4 N	OK
60 °C	-4.4%	4.63 kg / 10.20 pounds 4627.0 g / 45.4 N
80 °C	-6.6%	4.52 kg / 9.97 pounds 4520.6 g / 44.3 N
100 °C	-28.8%	3.45 kg / 7.60 pounds 3446.1 g / 33.8 N

Standard neodymium magnets change their properties parameters past the thermal threshold. Watch out for overheating – heat can irreversibly demagnetize this product. With increasing heat, the magnet's capacity temporarily drops. Refrain from using this product near heat sources higher than its working range. Exceeding the critical threshold will result in permanent loss of magnetic properties.

*Engineering note: Thermal stability is determined by both grade, but also on the magnet's shape. Flat magnets (low Pc) risk losing magnetic properties at lower temperatures compared to rod magnets. The danger warning in the table signals permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field range
MPL 12.5x12.5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	12.54 kg / 27.64 pounds 5 069 Gs	1.88 kg / 4.15 pounds 1880 g / 18.4 N	N/A
1 mm	11.08 kg / 24.43 pounds 6 783 Gs	1.66 kg / 3.66 pounds 1662 g / 16.3 N	9.97 kg / 21.98 pounds ~0 Gs
2 mm	9.59 kg / 21.15 pounds 6 312 Gs	1.44 kg / 3.17 pounds 1439 g / 14.1 N	8.63 kg / 19.04 pounds ~0 Gs
3 mm	8.18 kg / 18.03 pounds 5 827 Gs	1.23 kg / 2.70 pounds 1226 g / 12.0 N	7.36 kg / 16.22 pounds ~0 Gs
5 mm	5.71 kg / 12.60 pounds 4 871 Gs	0.86 kg / 1.89 pounds 857 g / 8.4 N	5.14 kg / 11.34 pounds ~0 Gs
10 mm	2.07 kg / 4.55 pounds 2 929 Gs	0.31 kg / 0.68 pounds 310 g / 3.0 N	1.86 kg / 4.10 pounds ~0 Gs
20 mm	0.28 kg / 0.61 pounds 1 076 Gs	0.04 kg / 0.09 pounds 42 g / 0.4 N	0.25 kg / 0.55 pounds ~0 Gs
50 mm	0.00 kg / 0.01 pounds 136 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
60 mm	0.00 kg / 0.00 pounds 84 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
70 mm	0.00 kg / 0.00 pounds 56 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.00 pounds 39 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
90 mm	0.00 kg / 0.00 pounds 28 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
100 mm	0.00 kg / 0.00 pounds 21 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnetic products attract each other from a much further distance than a neodymium and metal setup. Such a system of magnet-to-magnet produces a massive flux and a larger range of performance. Planning to create a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the pinch force is huge. The repulsion force is a bit weaker than the attraction, but still impressive.
*The magnetic induction in repulsion mode is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
* Estimates refer to shear force of a pair of same neodymium magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - precautionary measures
MPL 12.5x12.5x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.5 cm
Timepiece	20 Gs (2.0 mT)	4.0 cm
Mobile device	40 Gs (4.0 mT)	3.5 cm
Car key	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation poses a large risk to electronics as well as pacemakers. These magnets generate a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field penetrates the body and housings. Increased vigilance must be exercised by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, membranes, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (cracking risk) - warning
MPL 12.5x12.5x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	29.38 km/h (8.16 m/s)	0.20 J
30 mm	50.21 km/h (13.95 m/s)	0.57 J
50 mm	64.81 km/h (18.00 m/s)	0.95 J
100 mm	91.65 km/h (25.46 m/s)	1.90 J

Magnetic elements are delicate – a violent impact against metal causes immediate chipping. Watch the impact speed – a magnet released freely becomes dangerous. Striking energy can destroy the magnet or dangerous crushing to fingers. Always hold the magnet during installation so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h almost guarantees destruction of the neodymium. Use safety goggles when working with large magnets.

Table 9: Surface protection spec
MPL 12.5x12.5x5 / 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)

The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Electrical data (P_c)
MPL 12.5x12.5x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 874 Mx	58.7 µWb
P_c Coefficient	0.46	Low (Flat)

Flux value emitted by the magnet pole. Essential parameter when building generators and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Submerged application
MPL 12.5x12.5x5 / N38

Environment	Effective steel pull	Effect
Air (land)	4.84 kg	Standard
Water (riverbed)	5.54 kg (+0.70 kg buoyancy gain)	+14.5%

Corrosion warning: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Sliding resistance

*Caution: On a vertical surface, the magnet holds merely approx. 20-30% of its max power.

2. Efficiency vs thickness

*Thin metal sheet (e.g. computer case) severely weakens the holding force.

3. Thermal stability

*For N38 grade, the critical limit is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.46

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The P_c (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher P_c value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

Elemental analysis

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Ecology and recycling (GPSR)

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 020117-2026

Measurement Calculator

Magnet pull force

Newtons (N)

Force in lbs

Field Strength

Gauss (Gs)

Tesla (T)

Just fill in a single box, to let the tool calculate everything else for you.

View more products

Product available Ships tomorrow

UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder

599.99 ZŁ brutto / pcs

Product available Ships tomorrow

SM 32x250 [2xM8] / N42 - magnetic separator

750.30 ZŁ brutto / pcs

Product available Ships tomorrow

LM TLN - 15 SQ / N38 - magnetic leviton

450.00 ZŁ brutto / pcs

Product available Ships tomorrow

MW 12x10 / N38 - cylindrical magnet

3.03 ZŁ brutto / pcs

Model MPL 12.5x12.5x5 / N38 features a low profile and professional pulling force, making it a perfect solution for building separators and machines. This magnetic block with a force of 47.51 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. To separate the MPL 12.5x12.5x5 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend care, because after separation, the magnets may want to violently snap back together, which threatens pinching the skin. Using a screwdriver risks destroying the coating and permanently cracking the magnet.

Plate magnets MPL 12.5x12.5x5 / 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. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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 12.5x12.5x5 / N38 model is magnetized axially (dimension 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. 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: 12.5 mm (length), 12.5 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 12.5x12.5x5 mm and a self-weight of 5.86 g, ready to work at temperatures up to 80°C. The product meets the standards for N38 grade magnets.

Pros and cons of Nd₂Fe₁₄B magnets.

Pros

Apart from their consistent magnetism, neodymium magnets have these key benefits:

They have stable power, and over more than ten years their attraction force decreases symbolically – ~1% (in testing),
They possess excellent resistance to magnetic field loss when exposed to external fields,
By covering with a reflective coating of nickel, the element gains an proper look,
Neodymium magnets achieve maximum magnetic induction on a contact point, which allows for strong attraction,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
Thanks to the ability of accurate forming and adaptation to specialized projects, magnetic components can be created in a variety of forms and dimensions, which makes them more universal,
Key role in electronics industry – they are used in hard drives, electric drive systems, precision medical tools, also technologically advanced constructions.
Thanks to their power density, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of neodymium magnets:

To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
We recommend cover - magnetic holder, due to difficulties in creating threads inside the magnet and complex shapes.
Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these devices can disrupt the diagnostic process medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

The specified lifting capacity represents the limit force, measured under optimal environment, specifically:

on a block made of mild steel, effectively closing the magnetic flux
whose transverse dimension reaches at least 10 mm
with an ideally smooth touching surface
with direct contact (without coatings)
during pulling in a direction vertical to the plane
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in practice – influencing factors

During everyday use, the actual lifting capacity is determined by many variables, presented from most significant:

Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of nominal force).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
Surface finish – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.

Safe handling of neodymium magnets

Magnets are brittle

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Immense force

Handle with care. Rare earth magnets attract from a long distance and snap with huge force, often quicker than you can move away.

Threat to navigation

Remember: neodymium magnets generate a field that disrupts precision electronics. Maintain a safe distance from your mobile, tablet, and navigation systems.

Keep away from computers

Very strong magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.

Do not give to children

Adult use only. Small elements pose a choking risk, leading to severe trauma. Keep away from children and animals.

Nickel coating and allergies

A percentage of the population experience a sensitization to nickel, which is the standard coating for NdFeB magnets. Frequent touching might lead to an allergic reaction. We suggest use protective gloves.

Bodily injuries

Big blocks can crush fingers in a fraction of a second. Never put your hand between two attracting surfaces.

Mechanical processing

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Operating temperature

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

Implant safety

For implant holders: Powerful magnets disrupt electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.

Safety First! Need more info? Check our post: Are neodymium magnets dangerous?

MPL 12.5x12.5x5 / N38 - lamellar magnet

Technical - MPL 12.5x12.5x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - technical parameters

Table 1: Static force (force vs gap) - power drop MPL 12.5x12.5x5 / N38

Table 2: Sliding force (vertical surface) MPL 12.5x12.5x5 / N38

Table 3: Wall mounting (sliding) - vertical pull MPL 12.5x12.5x5 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection MPL 12.5x12.5x5 / N38

Table 5: Working in heat (material behavior) - power drop MPL 12.5x12.5x5 / N38

Table 6: Two magnets (repulsion) - field range MPL 12.5x12.5x5 / N38

Table 7: Hazards (electronics) - precautionary measures MPL 12.5x12.5x5 / N38

Table 8: Impact energy (cracking risk) - warning MPL 12.5x12.5x5 / N38

Table 9: Surface protection spec MPL 12.5x12.5x5 / N38

Table 10: Electrical data (Pc) MPL 12.5x12.5x5 / N38

Table 11: Submerged application MPL 12.5x12.5x5 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Thermal stability

4. Demagnetization curve and operating point (B-H)

Elemental analysis

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

View more products

UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder

SM 32x250 [2xM8] / N42 - magnetic separator

LM TLN - 15 SQ / N38 - magnetic leviton

MW 12x10 / N38 - cylindrical magnet

Pros and cons of Nd2Fe14B magnets.

Pros

Cons

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Lifting capacity in practice – influencing factors

Safe handling of neodymium magnets

Magnets are brittle

Immense force

Threat to navigation

Keep away from computers

Do not give to children

Nickel coating and allergies

Bodily injuries

Mechanical processing

Operating temperature

Implant safety

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - power drop
MPL 12.5x12.5x5 / N38

Table 2: Sliding force (vertical surface)
MPL 12.5x12.5x5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MPL 12.5x12.5x5 / N38

Table 4: Material efficiency (substrate influence) - sheet metal selection
MPL 12.5x12.5x5 / N38

Table 5: Working in heat (material behavior) - power drop
MPL 12.5x12.5x5 / N38

Table 6: Two magnets (repulsion) - field range
MPL 12.5x12.5x5 / N38

Table 7: Hazards (electronics) - precautionary measures
MPL 12.5x12.5x5 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 12.5x12.5x5 / N38

Table 9: Surface protection spec
MPL 12.5x12.5x5 / N38

Table 10: Electrical data (P_c)
MPL 12.5x12.5x5 / N38

Table 11: Submerged application
MPL 12.5x12.5x5 / N38

Pros and cons of Nd₂Fe₁₄B magnets.