Product available Ships today (order by 14:00)

MPL 30x5x5 / N38 - lamellar magnet

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

lamellar magnet

Catalog no 020448

GTIN/EAN: 5906301811923

length

30 mm [±0,1 mm]

Width

5 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

5.63 g

Magnetization Direction

↑ axial

Load capacity

7.03 kg / 68.96 N

Magnetic Induction

446.27 mT / 4463 Gs

Coating

[NiCuNi] Nickel

product specifications »

4.15 ZŁ with VAT / pcs + price for transport

3.37 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

3.37 ZŁ

4.15 ZŁ

price from 200 pcs

3.17 ZŁ

3.90 ZŁ

price from 750 pcs

2.97 ZŁ

3.65 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Hunting for a discount?

Call us now +48 888 99 98 98 alternatively get in touch through inquiry form the contact form page.
Strength and appearance of magnets can be checked using our magnetic mass calculator.

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

Technical specification of the product - MPL 30x5x5 / N38 - lamellar magnet

Specification / characteristics - MPL 30x5x5 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020448
GTIN/EAN	5906301811923
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	30 mm [±0,1 mm]
Width	5 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	5.63 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.03 kg / 68.96 N
Magnetic Induction ~ ?	446.27 mT / 4463 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 30x5x5 / 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

Technical analysis of the assembly - data

Presented values constitute the direct effect of a physical simulation. Values rely on algorithms for the material Nd₂Fe₁₄B. Real-world conditions might slightly differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

Table 1: Static force (pull vs gap) - characteristics
MPL 30x5x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4458 Gs 445.8 mT	7.03 kg / 15.50 lbs 7030.0 g / 69.0 N	warning
1 mm	3235 Gs 323.5 mT	3.70 kg / 8.16 lbs 3702.2 g / 36.3 N	warning
2 mm	2271 Gs 227.1 mT	1.82 kg / 4.02 lbs 1825.0 g / 17.9 N	weak grip
3 mm	1628 Gs 162.8 mT	0.94 kg / 2.07 lbs 937.0 g / 9.2 N	weak grip
5 mm	927 Gs 92.7 mT	0.30 kg / 0.67 lbs 304.2 g / 3.0 N	weak grip
10 mm	342 Gs 34.2 mT	0.04 kg / 0.09 lbs 41.4 g / 0.4 N	weak grip
15 mm	166 Gs 16.6 mT	0.01 kg / 0.02 lbs 9.7 g / 0.1 N	weak grip
20 mm	92 Gs 9.2 mT	0.00 kg / 0.01 lbs 3.0 g / 0.0 N	weak grip
30 mm	36 Gs 3.6 mT	0.00 kg / 0.00 lbs 0.5 g / 0.0 N	weak grip
50 mm	9 Gs 0.9 mT	0.00 kg / 0.00 lbs 0.0 g / 0.0 N	weak grip

Magnetic force drops drastically with every subsequent millimeter of gap. Keep in mind that even the smallest gap (e.g., contamination, varnish, veneer) strongly diminishes the holding power. Neodymiums hold most effectively in perfect adhesion; distance weakens the power. Notice how rapidly the load capacity plummet, when the product does not touch directly to the metal substrate. When calculating the arrangement, discard redundant distances.

Table 2: Shear force (wall)
MPL 30x5x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.41 kg / 3.10 lbs 1406.0 g / 13.8 N
1 mm	Stal (~0.2)	0.74 kg / 1.63 lbs 740.0 g / 7.3 N
2 mm	Stal (~0.2)	0.36 kg / 0.80 lbs 364.0 g / 3.6 N
3 mm	Stal (~0.2)	0.19 kg / 0.41 lbs 188.0 g / 1.8 N
5 mm	Stal (~0.2)	0.06 kg / 0.13 lbs 60.0 g / 0.6 N
10 mm	Stal (~0.2)	0.01 kg / 0.02 lbs 8.0 g / 0.1 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 2.0 g / 0.0 N
20 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 lbs 0.0 g / 0.0 N

The following data calculates the approximate force required to initiate the sliding of the magnet down against a upright steel wall (assuming typical friction). This value depends on the air gap between the magnet and the metal.

Table 3: Wall mounting (shearing) - vertical pull
MPL 30x5x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.11 kg / 4.65 lbs 2109.0 g / 20.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.41 kg / 3.10 lbs 1406.0 g / 13.8 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.70 kg / 1.55 lbs 703.0 g / 6.9 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	3.52 kg / 7.75 lbs 3515.0 g / 34.5 N

When hanging a element on a upright surface (e.g., a car body), it will maintain only about 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient cause that magnets slide down faster than they pop off the substrate. Planning a wall mount? Remember that the shear force is much weaker than the maximum static pull force. On a smooth steel, the element will slide down under a noticeably lighter weight. Application of an anti-slip pad can effectively improve the result.

Table 4: Steel thickness (substrate influence) - power losses
MPL 30x5x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.70 kg / 1.55 lbs 703.0 g / 6.9 N
1 mm	25%	1.76 kg / 3.87 lbs 1757.5 g / 17.2 N
2 mm	50%	3.52 kg / 7.75 lbs 3515.0 g / 34.5 N
3 mm	75%	5.27 kg / 11.62 lbs 5272.5 g / 51.7 N
5 mm	100%	7.03 kg / 15.50 lbs 7030.0 g / 69.0 N
10 mm	100%	7.03 kg / 15.50 lbs 7030.0 g / 69.0 N
11 mm	100%	7.03 kg / 15.50 lbs 7030.0 g / 69.0 N
12 mm	100%	7.03 kg / 15.50 lbs 7030.0 g / 69.0 N

A thin sheet is incapable of conduct the full magnetic flux, which wastes potential of the magnet. If you mount a strong magnet to a too thin substrate, the field will penetrate right through and the attraction force will be weaker. To utilize 100% of this neodymium's power, you require a sufficiently solid element of steel. The saturation effect means that on thin elements (e.g., appliance housings), the holder shows lower pull force. We suggest choosing the steel cross-section from these parameters.

Table 5: Thermal stability (stability) - resistance threshold
MPL 30x5x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	7.03 kg / 15.50 lbs 7030.0 g / 69.0 N	OK
40 °C	-2.2%	6.88 kg / 15.16 lbs 6875.3 g / 67.4 N	OK
60 °C	-4.4%	6.72 kg / 14.82 lbs 6720.7 g / 65.9 N
80 °C	-6.6%	6.57 kg / 14.48 lbs 6566.0 g / 64.4 N
100 °C	-28.8%	5.01 kg / 11.03 lbs 5005.4 g / 49.1 N

Standard neodymium magnets lose strength above the temperature limit. Avoid high temperatures – high temperature can permanently destroy this magnet. As the temperature rises, the magnet's capacity momentarily lowers. Do not use this magnet in hot environments higher than its safe range. Ignoring the limit will cause irreversible degradation of magnetic properties.

*Technical advisory: Thermal stability depends not only on the material grade, as well as the dimension ratios. Flat magnets (low permeance coefficient) may lose charge permanently sooner than long magnets. Warning indicator in the table points to permanent field degradation for this specific geometry.

Table 6: Two magnets (repulsion) - field collision
MPL 30x5x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	18.38 kg / 40.52 lbs 5 383 Gs	2.76 kg / 6.08 lbs 2757 g / 27.0 N	N/A
1 mm	13.60 kg / 29.99 lbs 7 670 Gs	2.04 kg / 4.50 lbs 2040 g / 20.0 N	12.24 kg / 26.99 lbs ~0 Gs
2 mm	9.68 kg / 21.34 lbs 6 470 Gs	1.45 kg / 3.20 lbs 1452 g / 14.2 N	8.71 kg / 19.20 lbs ~0 Gs
3 mm	6.79 kg / 14.97 lbs 5 419 Gs	1.02 kg / 2.25 lbs 1018 g / 10.0 N	6.11 kg / 13.47 lbs ~0 Gs
5 mm	3.39 kg / 7.48 lbs 3 830 Gs	0.51 kg / 1.12 lbs 509 g / 5.0 N	3.05 kg / 6.73 lbs ~0 Gs
10 mm	0.80 kg / 1.75 lbs 1 855 Gs	0.12 kg / 0.26 lbs 119 g / 1.2 N	0.72 kg / 1.58 lbs ~0 Gs
20 mm	0.11 kg / 0.24 lbs 684 Gs	0.02 kg / 0.04 lbs 16 g / 0.2 N	0.10 kg / 0.21 lbs ~0 Gs
50 mm	0.00 kg / 0.01 lbs 111 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
60 mm	0.00 kg / 0.00 lbs 72 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
70 mm	0.00 kg / 0.00 lbs 49 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
80 mm	0.00 kg / 0.00 lbs 34 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
90 mm	0.00 kg / 0.00 lbs 25 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs
100 mm	0.00 kg / 0.00 lbs 19 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two magnets interact from a wider radius than a magnet and steel setup. The connection of two magnets produces a massive flux and a larger range of performance. Planning to create a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Exercise caution that when attracting two neodymiums, the pinch force is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Flux density between like poles is approximately ~0 Gs in the exact middle of the gap (due to field cancellation).
Attention: Results demonstrate sliding force of two identical neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 30x5x5 / N38

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

Extremely neodym field is a large risk to electronic devices and pacemakers. These magnets produce a field that destroys function of sensitive medical devices. Be aware: the unseen radiation passes through tissues and housings. Special caution must be taken by people with hearing aids and insulin pumps. Also at risk are: mechanical watches, remotes, membranes, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - warning
MPL 30x5x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	35.77 km/h (9.94 m/s)	0.28 J
30 mm	61.73 km/h (17.15 m/s)	0.83 J
50 mm	79.69 km/h (22.14 m/s)	1.38 J
100 mm	112.70 km/h (31.30 m/s)	2.76 J

Magnetic elements are very brittle – a strong collision with metal causes immediate chipping. Pay attention to connection velocity – a neodymium left loose turns into a projectile. Impact energy can destroy the magnet or dangerous crushing to skin. Hold the magnet firmly during installation so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Wear safety glasses when handling with powerful specimens.

Table 9: Surface protection spec
MPL 30x5x5 / 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 30x5x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 700 Mx	57.0 µWb
P_c Coefficient	0.46	Low (Flat)

Flux value emitted by the pole surface. Key data in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Physics of underwater searching
MPL 30x5x5 / N38

Environment	Effective steel pull	Effect
Air (land)	7.03 kg	Standard
Water (riverbed)	8.05 kg (+1.02 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.

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds just approx. 20-30% of its nominal pull.

2. Steel saturation

*Thin steel (e.g. computer case) severely reduces the holding force.

3. Temperature resistance

*For standard magnets, 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

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. 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 and environmental data

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%

Environmental data

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: 020448-2026

Magnet Unit Converter

Magnet pull force

Kilograms (kg)

lbs

Field Strength

Simply populate a single box, and the converter fill in everything else for you.

Other deals

Product available Ships today (order by 14:00)

UMT 29x38 white / N38 - board holder

6.81 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread

33.95 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

SM 32x450 [2xM8] / N42 - magnetic separator

1340.70 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

UMT 12x20 purple / N38 - board holder

1.894 ZŁ brutto / pcs

This product is a very powerful plate magnet made of NdFeB material, which, with dimensions of 30x5x5 mm and a weight of 5.63 g, guarantees the highest quality connection. As a block magnet with high power (approx. 7.03 kg), this product is available off-the-shelf from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

The key to success is sliding 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 30x5x5 / 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.

They constitute a key element in the production of wind generators and material handling systems. Thanks to the flat surface and high force (approx. 7.03 kg), they are ideal as closers in furniture making and mounting elements in automation. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 30x5x5 / N38, we recommend utilizing strong epoxy glues (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. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

The magnetic axis runs through the shortest dimension, which is typical for gripper magnets. 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: 30 mm (length), 5 mm (width), and 5 mm (thickness). The key parameter here is the lifting capacity amounting to approximately 7.03 kg (force ~68.96 N), which, with such a flat shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Strengths as well as weaknesses of rare earth magnets.

Strengths

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They retain full power for around 10 years – the drop is just ~1% (in theory),
Neodymium magnets are distinguished by exceptionally resistant to magnetic field loss caused by external field sources,
The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Neodymium magnets generate maximum magnetic induction on a their surface, which ensures high operational effectiveness,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
In view of the ability of flexible shaping and adaptation to specialized projects, neodymium magnets can be created in a variety of shapes and sizes, which expands the range of possible applications,
Fundamental importance in innovative solutions – they are utilized in mass storage devices, electromotive mechanisms, advanced medical instruments, and technologically advanced constructions.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Drawbacks and weaknesses of neodymium magnets: application proposals

At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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 very resistant to heat
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
We recommend cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated forms.
Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the context of child safety. Additionally, small components of these products can complicate diagnosis medical when they are in the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Magnetic strength at its maximum – what it depends on?

The specified lifting capacity refers to the limit force, measured under laboratory conditions, meaning:

on a block made of structural steel, optimally conducting the magnetic field
with a cross-section minimum 10 mm
with a surface free of scratches
under conditions of gap-free contact (surface-to-surface)
for force acting at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Real force impacted by specific conditions, including (from most important):

Distance – the presence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Angle of force application – highest force is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
Plate thickness – too thin plate does not close the flux, causing part of the power to be lost to the other side.
Material type – ideal substrate is high-permeability steel. Hardened steels may generate lower lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, in contrast under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate reduces the holding force.

Safety rules for work with neodymium magnets

Magnetic interference

GPS units and mobile phones are highly susceptible to magnetism. Close proximity with a strong magnet can ruin the internal compass in your phone.

Heat sensitivity

Do not overheat. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Handling guide

Use magnets consciously. Their powerful strength can shock even experienced users. Stay alert and do not underestimate their power.

Implant safety

For implant holders: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.

Skin irritation risks

Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, avoid direct skin contact or opt for coated magnets.

Eye protection

Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Choking Hazard

NdFeB magnets are not intended for children. Swallowing a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and necessitates immediate surgery.

Fire risk

Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this risks ignition.

Pinching danger

Pinching hazard: The pulling power is so great that it can cause hematomas, pinching, and broken bones. Use thick gloves.

Threat to electronics

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

Caution! Looking for details? Read our article: Why are neodymium magnets dangerous?

MPL 30x5x5 / N38 - lamellar magnet

Technical specification of the product - MPL 30x5x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the assembly - data

Table 1: Static force (pull vs gap) - characteristics MPL 30x5x5 / N38

Table 2: Shear force (wall) MPL 30x5x5 / N38

Table 3: Wall mounting (shearing) - vertical pull MPL 30x5x5 / N38

Table 4: Steel thickness (substrate influence) - power losses MPL 30x5x5 / N38

Table 5: Thermal stability (stability) - resistance threshold MPL 30x5x5 / N38

Table 6: Two magnets (repulsion) - field collision MPL 30x5x5 / N38

Table 7: Safety (HSE) (implants) - precautionary measures MPL 30x5x5 / N38

Table 8: Impact energy (cracking risk) - warning MPL 30x5x5 / N38

Table 9: Surface protection spec MPL 30x5x5 / N38

Table 10: Electrical data (Pc) MPL 30x5x5 / N38

Table 11: Physics of underwater searching MPL 30x5x5 / N38

1. Sliding resistance

2. Steel saturation

3. Temperature resistance

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

Elemental analysis

Environmental data

Magnet pull force

Field Strength

Other deals

UMT 29x38 white / N38 - board holder

UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread

SM 32x450 [2xM8] / N42 - magnetic separator

UMT 12x20 purple / N38 - board holder

Strengths as well as weaknesses of rare earth magnets.

Strengths

Weaknesses

Lifting parameters

Magnetic strength at its maximum – what it depends on?

What influences lifting capacity in practice

Safety rules for work with neodymium magnets

Magnetic interference

Heat sensitivity

Handling guide

Implant safety

Skin irritation risks

Eye protection

Choking Hazard

Fire risk

Pinching danger

Threat to electronics

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - characteristics
MPL 30x5x5 / N38

Table 2: Shear force (wall)
MPL 30x5x5 / N38

Table 3: Wall mounting (shearing) - vertical pull
MPL 30x5x5 / N38

Table 4: Steel thickness (substrate influence) - power losses
MPL 30x5x5 / N38

Table 5: Thermal stability (stability) - resistance threshold
MPL 30x5x5 / N38

Table 6: Two magnets (repulsion) - field collision
MPL 30x5x5 / N38

Table 7: Safety (HSE) (implants) - precautionary measures
MPL 30x5x5 / N38

Table 8: Impact energy (cracking risk) - warning
MPL 30x5x5 / N38

Table 9: Surface protection spec
MPL 30x5x5 / N38

Table 10: Electrical data (P_c)
MPL 30x5x5 / N38

Table 11: Physics of underwater searching
MPL 30x5x5 / N38