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MPL 5x4x1 / 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 020169

GTIN/EAN: 5906301811756

5.00

length

5 mm [±0,1 mm]

Width

4 mm [±0,1 mm]

Height

1 mm [±0,1 mm]

Weight

0.15 g

Magnetization Direction

↑ axial

Load capacity

0.32 kg / 3.16 N

Magnetic Induction

232.88 mT / 2329 Gs

Coating

[NiCuNi] Nickel

see properties »

0.1845 ZŁ with VAT / pcs + price for transport

0.1500 ZŁ net + 23% VAT / pcs

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Force along with structure of a neodymium magnet can be checked with our power calculator.

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Technical of the product - MPL 5x4x1 / N38 - lamellar magnet

Specification / characteristics - MPL 5x4x1 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020169
GTIN/EAN	5906301811756
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	4 mm [±0,1 mm]
Height	1 mm [±0,1 mm]
Weight	0.15 g
Magnetization Direction	↑ axial
Load capacity ~ ?	0.32 kg / 3.16 N
Magnetic Induction ~ ?	232.88 mT / 2329 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 5x4x1 / 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 analysis of the assembly - data

These values constitute the result of a engineering analysis. Results were calculated on algorithms for the material Nd₂Fe₁₄B. Operational parameters might slightly differ from theoretical values. Please consider these calculations as a preliminary roadmap during assembly planning.

Table 1: Static pull force (force vs gap) - characteristics
MPL 5x4x1 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2327 Gs 232.7 mT	0.32 kg / 0.71 LBS 320.0 g / 3.1 N	safe
1 mm	1559 Gs 155.9 mT	0.14 kg / 0.32 LBS 143.7 g / 1.4 N	safe
2 mm	876 Gs 87.6 mT	0.05 kg / 0.10 LBS 45.3 g / 0.4 N	safe
3 mm	488 Gs 48.8 mT	0.01 kg / 0.03 LBS 14.1 g / 0.1 N	safe
5 mm	177 Gs 17.7 mT	0.00 kg / 0.00 LBS 1.9 g / 0.0 N	safe
10 mm	31 Gs 3.1 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	safe
15 mm	10 Gs 1.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe
20 mm	4 Gs 0.4 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe
30 mm	1 Gs 0.1 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe
50 mm	0 Gs 0.0 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	safe

Grip strength decreases sharply per each millimeter of spacing. Note that even the smallest gap (e.g., contamination, varnish, rust) strongly reduces the pull force. Neodymiums operate strongest in perfect adhesion; gap weakens the force. See how quickly the pull force fall, when the magnet does not touch flatly to the steel surface. When planning the arrangement, eliminate redundant distances.

Table 2: Vertical load (vertical surface)
MPL 5x4x1 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.06 kg / 0.14 LBS 64.0 g / 0.6 N
1 mm	Stal (~0.2)	0.03 kg / 0.06 LBS 28.0 g / 0.3 N
2 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 N
3 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 2.0 g / 0.0 N
5 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
10 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 g / 0.0 N
15 mm	Stal (~0.2)	0.00 kg / 0.00 LBS 0.0 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 defines the estimated weight limit sufficient to cause the slippage of the magnet downwards against a upright steel plate (assuming standard friction). This value depends on the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 5x4x1 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.10 kg / 0.21 LBS 96.0 g / 0.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.06 kg / 0.14 LBS 64.0 g / 0.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.03 kg / 0.07 LBS 32.0 g / 0.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.16 kg / 0.35 LBS 160.0 g / 1.6 N

When mounting a holder on a upright wall (e.g., a fridge), it will only hold barely approx. 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient cause that holders slide down easier than they detach. Want to create a hanger? Note that the shear force is much weaker than the maximum static pull force. On a slippery surface, the element will give way down under a noticeably lighter load. Application of an anti-slip layer can significantly increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 5x4x1 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.03 kg / 0.07 LBS 32.0 g / 0.3 N
1 mm	25%	0.08 kg / 0.18 LBS 80.0 g / 0.8 N
2 mm	50%	0.16 kg / 0.35 LBS 160.0 g / 1.6 N
3 mm	75%	0.24 kg / 0.53 LBS 240.0 g / 2.4 N
5 mm	100%	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
10 mm	100%	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
11 mm	100%	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
12 mm	100%	0.32 kg / 0.71 LBS 320.0 g / 3.1 N

A thin sheet is not enough to absorb the full magnetic flux, which squanders power of the magnet. If you install a neodymium to a thin surface, the magnetism will penetrate right through and the holding will be smaller. To achieve 100% of this neodymium's potential, you require a sufficiently solid backing of steel. The material oversaturation means that on thin elements (e.g., appliance housings), the holder holds weaker. We advise picking the steel cross-section according to the table below.

Table 5: Thermal stability (stability) - power drop
MPL 5x4x1 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	0.32 kg / 0.71 LBS 320.0 g / 3.1 N	OK
40 °C	-2.2%	0.31 kg / 0.69 LBS 313.0 g / 3.1 N	OK
60 °C	-4.4%	0.31 kg / 0.67 LBS 305.9 g / 3.0 N
80 °C	-6.6%	0.30 kg / 0.66 LBS 298.9 g / 2.9 N
100 °C	-28.8%	0.23 kg / 0.50 LBS 227.8 g / 2.2 N

Ordinary NdFeB products irreversibly lose strength after exceeding the maximum temperature. Protect against heat – heat can irreversibly destroy this product. With every degree above norm, the neodymium's force temporarily drops. Do not use this product close to ovens exceeding its safe range. Exceeding the critical threshold will result in irreversible degradation of magnetism.

*Engineering note: Temperature resistance depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress compared to rod magnets. The danger warning in the table indicates permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 5x4x1 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	0.67 kg / 1.47 LBS 3 878 Gs	0.10 kg / 0.22 LBS 100 g / 1.0 N	N/A
1 mm	0.48 kg / 1.06 LBS 3 959 Gs	0.07 kg / 0.16 LBS 72 g / 0.7 N	0.43 kg / 0.96 LBS ~0 Gs
2 mm	0.30 kg / 0.66 LBS 3 118 Gs	0.04 kg / 0.10 LBS 45 g / 0.4 N	0.27 kg / 0.59 LBS ~0 Gs
3 mm	0.17 kg / 0.38 LBS 2 356 Gs	0.03 kg / 0.06 LBS 26 g / 0.3 N	0.15 kg / 0.34 LBS ~0 Gs
5 mm	0.05 kg / 0.12 LBS 1 302 Gs	0.01 kg / 0.02 LBS 8 g / 0.1 N	0.05 kg / 0.10 LBS ~0 Gs
10 mm	0.00 kg / 0.01 LBS 355 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
20 mm	0.00 kg / 0.00 LBS 63 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 5 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 3 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 2 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 1 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 1 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 1 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two magnetic products attract each other from a significantly greater distance than a magnet and sheet combination. The setup of magnet-to-magnet generates a stronger field and a larger range of performance. Want to build a powerful holder? Use a pair of magnets instead of one magnet and a striker plate. Exercise caution that when attracting two neodymiums, the pinch force is extreme. The repulsion force is marginally weaker than the connection force, but still impressive.
*The magnetic induction between like poles drops to ~0 Gs in the exact middle between the magnets (caused by magnetic field nullification).
Important: Figures show friction force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (electronics) - warnings
MPL 5x4x1 / N38

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

A strong magnetic field poses a serious hazard to electronics as well as pacemakers. These NdFeB products produce a flux that disrupts operation of sensitive medical devices. Remember: the invisible magnetic field passes through tissues and housings. Increased vigilance must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, HDD media, or precise measuring instruments.

Table 8: Collisions (cracking risk) - warning
MPL 5x4x1 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	46.59 km/h (12.94 m/s)	0.01 J
30 mm	80.68 km/h (22.41 m/s)	0.04 J
50 mm	104.16 km/h (28.93 m/s)	0.06 J
100 mm	147.30 km/h (40.92 m/s)	0.13 J

NdFeB products are delicate – a strong collision with metal causes immediate chipping. Control the attraction moment – a magnet released freely becomes dangerous. Impact energy can trigger coating fragments or dangerous crushing to skin. Be sure to control the product during mounting so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h means shattering of the magnet. Wear eye protection when working with large magnets.

Table 9: Anti-corrosion coating durability
MPL 5x4x1 / 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 following table defines the conditions under which this product can be safely used. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (Flux)
MPL 5x4x1 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	531 Mx	5.3 µWb
P_c Coefficient	0.29	Low (Flat)

Total magnetic flux passing through the magnet pole. Key data in coil applications as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 5x4x1 / N38

Environment	Effective steel pull	Effect
Air (land)	0.32 kg	Standard
Water (riverbed)	0.37 kg (+0.05 kg buoyancy gain)	+14.5%

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

In water, the magnet feels stronger thanks to Archimedes' principle. However, remember the water resistance when pulling the rope quickly.

1. Vertical hold

*Caution: On a vertical surface, the magnet retains only a fraction of its nominal pull.

2. Plate thickness effect

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Power loss vs temp

*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) = 0.29

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%

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: 020169-2026

Quick Unit Converter

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Component MPL 5x4x1 / N38 features a low profile and industrial pulling force, making it an ideal solution for building separators and machines. This rectangular block with a force of 3.16 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 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. Watch your fingers! Magnets with a force of 0.32 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.

They constitute a key element in the production of generators and material handling systems. They work great as invisible mounts under tiles, wood, or glass. Their rectangular shape facilitates precise gluing into milled sockets in wood or plastic.

For mounting flat magnets MPL 5x4x1 / N38, it is best to use strong epoxy glues (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. Remember to roughen and wash the magnet surface before gluing, which significantly increases the adhesion of the glue to the nickel coating.

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. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 5x4x1 mm, which, at a weight of 0.15 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 0.32 kg (force ~3.16 N), which, with such a flat shape, proves the high power of the material. The product meets the standards for N38 grade magnets.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Strengths

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

Their magnetic field is maintained, and after around ten years it decreases only by ~1% (according to research),
Neodymium magnets are characterized by highly resistant to magnetic field loss caused by external interference,
In other words, due to the reflective surface of gold, the element becomes visually attractive,
The surface of neodymium magnets generates a strong magnetic field – this is a key feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
In view of the potential of accurate shaping and customization to custom solutions, NdFeB magnets can be manufactured in a wide range of shapes and sizes, which amplifies use scope,
Huge importance in electronics industry – they find application in computer drives, brushless drives, medical equipment, as well as modern systems.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as 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
We suggest casing - magnetic holder, due to difficulties in producing nuts inside the magnet and complex shapes.
Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical in case of swallowing.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Highest magnetic holding force – what contributes to it?

The specified lifting capacity refers to the maximum value, obtained under laboratory conditions, specifically:

with the application of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
possessing a thickness of minimum 10 mm to ensure full flux closure
with a surface free of scratches
without any insulating layer between the magnet and steel
under perpendicular force direction (90-degree angle)
in neutral thermal conditions

Practical aspects of lifting capacity – factors

Bear in mind that the working load may be lower subject to elements below, in order of importance:

Clearance – the presence of foreign body (paint, dirt, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic properties and holding force.
Surface condition – ground elements guarantee perfect abutment, which improves force. Uneven metal weaken the grip.
Temperature – heating the magnet causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.

Safe handling of NdFeB magnets

Hand protection

Danger of trauma: The pulling power is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.

Shattering risk

Beware of splinters. Magnets can explode upon uncontrolled impact, launching shards into the air. Wear goggles.

Nickel coating and allergies

Some people experience a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Extended handling can result in a rash. We strongly advise use protective gloves.

Dust explosion hazard

Machining of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

This is not a toy

Adult use only. Small elements can be swallowed, causing severe trauma. Keep away from kids and pets.

Conscious usage

Handle with care. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can move away.

Implant safety

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

Phone sensors

Navigation devices and mobile phones are highly susceptible to magnetism. Direct contact with a strong magnet can permanently damage the internal compass in your phone.

Cards and drives

Very strong magnetic fields can destroy records on credit cards, hard drives, and storage devices. Keep a distance of at least 10 cm.

Power loss in heat

Keep cool. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).

Danger! Details about risks in the article: Magnet Safety Guide.

MPL 5x4x1 / N38 - lamellar magnet

Technical of the product - MPL 5x4x1 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical analysis of the assembly - data

Table 1: Static pull force (force vs gap) - characteristics MPL 5x4x1 / N38

Table 2: Vertical load (vertical surface) MPL 5x4x1 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 5x4x1 / N38

Table 4: Steel thickness (saturation) - sheet metal selection MPL 5x4x1 / N38

Table 5: Thermal stability (stability) - power drop MPL 5x4x1 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system MPL 5x4x1 / N38

Table 7: Hazards (electronics) - warnings MPL 5x4x1 / N38

Table 8: Collisions (cracking risk) - warning MPL 5x4x1 / N38

Table 9: Anti-corrosion coating durability MPL 5x4x1 / N38

Table 10: Construction data (Flux) MPL 5x4x1 / N38

Table 11: Underwater work (magnet fishing) MPL 5x4x1 / N38

1. Vertical hold

2. Plate thickness effect

3. Power loss vs temp

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

Elemental analysis

Environmental data

Force (pull)

Field Strength

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Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Limitations

Lifting parameters

Highest magnetic holding force – what contributes to it?

Practical aspects of lifting capacity – factors

Safe handling of NdFeB magnets

Hand protection

Shattering risk

Nickel coating and allergies

Dust explosion hazard

This is not a toy

Conscious usage

Implant safety

Phone sensors

Cards and drives

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MPL 5x4x1 / N38

Table 2: Vertical load (vertical surface)
MPL 5x4x1 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 5x4x1 / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 5x4x1 / N38

Table 5: Thermal stability (stability) - power drop
MPL 5x4x1 / N38

Table 6: Magnet-Magnet interaction (attraction) - forces in the system
MPL 5x4x1 / N38

Table 7: Hazards (electronics) - warnings
MPL 5x4x1 / N38

Table 8: Collisions (cracking risk) - warning
MPL 5x4x1 / N38

Table 9: Anti-corrosion coating durability
MPL 5x4x1 / N38

Table 10: Construction data (Flux)
MPL 5x4x1 / N38

Table 11: Underwater work (magnet fishing)
MPL 5x4x1 / N38

Advantages and disadvantages of Nd₂Fe₁₄B magnets.