MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

Product available Ships tomorrow

MPL 40x10x4x2[7/3.5] / 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 020151

GTIN/EAN: 5906301811572

length

40 mm [±0,1 mm]

Width

10 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

12 g

Magnetization Direction

↑ axial

Load capacity

9.31 kg / 91.33 N

Magnetic Induction

275.57 mT / 2756 Gs

Coating

[NiCuNi] Nickel

check specifications »

9.21 ZŁ with VAT / pcs + price for transport

7.49 ZŁ net + 23% VAT / pcs

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Technical data - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

Specification / characteristics - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

properties

properties	values
Cat. no.	020151
GTIN/EAN	5906301811572
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	40 mm [±0,1 mm]
Width	10 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	12 g
Magnetization Direction	↑ axial
Load capacity ~ ?	9.31 kg / 91.33 N
Magnetic Induction ~ ?	275.57 mT / 2756 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 40x10x4x2[7/3.5] / 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 - report

The following data represent the direct effect of a mathematical analysis. Results are based on models for the material Nd₂Fe₁₄B. Actual parameters might slightly differ from theoretical values. Treat these calculations as a reference point when designing systems.

Table 1: Static pull force (force vs gap) - characteristics
MPL 40x10x4x2[7/3.5] / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	2755 Gs 275.5 mT	9.31 kg / 20.53 pounds 9310.0 g / 91.3 N	warning
1 mm	2413 Gs 241.3 mT	7.14 kg / 15.75 pounds 7143.1 g / 70.1 N	warning
2 mm	2044 Gs 204.4 mT	5.13 kg / 11.31 pounds 5128.9 g / 50.3 N	warning
3 mm	1703 Gs 170.3 mT	3.56 kg / 7.85 pounds 3559.5 g / 34.9 N	warning
5 mm	1173 Gs 117.3 mT	1.69 kg / 3.72 pounds 1688.2 g / 16.6 N	weak grip
10 mm	522 Gs 52.2 mT	0.33 kg / 0.74 pounds 334.9 g / 3.3 N	weak grip
15 mm	277 Gs 27.7 mT	0.09 kg / 0.21 pounds 94.2 g / 0.9 N	weak grip
20 mm	163 Gs 16.3 mT	0.03 kg / 0.07 pounds 32.8 g / 0.3 N	weak grip
30 mm	69 Gs 6.9 mT	0.01 kg / 0.01 pounds 5.8 g / 0.1 N	weak grip
50 mm	19 Gs 1.9 mT	0.00 kg / 0.00 pounds 0.5 g / 0.0 N	weak grip

Pulling power weakens significantly per each millimeter of distance. Keep in mind that even a very thin break (e.g., dirt, paint, veneer) significantly weakens the grip. Magnets hold strongest during direct contact; distance nullifies the force. Analyze how quickly the load capacity drop, when the magnet does not adhere directly to the metal substrate. When designing the arrangement, eliminate unnecessary gaps.

Table 2: Slippage capacity (vertical surface)
MPL 40x10x4x2[7/3.5] / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.86 kg / 4.11 pounds 1862.0 g / 18.3 N
1 mm	Stal (~0.2)	1.43 kg / 3.15 pounds 1428.0 g / 14.0 N
2 mm	Stal (~0.2)	1.03 kg / 2.26 pounds 1026.0 g / 10.1 N
3 mm	Stal (~0.2)	0.71 kg / 1.57 pounds 712.0 g / 7.0 N
5 mm	Stal (~0.2)	0.34 kg / 0.75 pounds 338.0 g / 3.3 N
10 mm	Stal (~0.2)	0.07 kg / 0.15 pounds 66.0 g / 0.6 N
15 mm	Stal (~0.2)	0.02 kg / 0.04 pounds 18.0 g / 0.2 N
20 mm	Stal (~0.2)	0.01 kg / 0.01 pounds 6.0 g / 0.1 N
30 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 2.0 g / 0.0 N
50 mm	Stal (~0.2)	0.00 kg / 0.00 pounds 0.0 g / 0.0 N

This section shows the approximate shear load required to initiate the slippage of the magnet downwards along a vertical metal surface (assuming standard friction coefficient). This value is relative to the gap size between the magnet and the metal.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 40x10x4x2[7/3.5] / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.79 kg / 6.16 pounds 2793.0 g / 27.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.86 kg / 4.11 pounds 1862.0 g / 18.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.93 kg / 2.05 pounds 931.0 g / 9.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.66 kg / 10.26 pounds 4655.0 g / 45.7 N

When placing a element on a upright surface (e.g., a board), it will maintain only about 20%-30% of nominal attraction strength. Gravitational force as well as a low friction coefficient mean that products move down easier than they pop off the substrate. Planning a vertical fastening? Consider that the sliding force is much weaker than the maximum static pull force. On a smooth steel, the magnet will slide down under a noticeably lighter cargo. Application of an anti-slip layer can drastically increase the grip.

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 40x10x4x2[7/3.5] / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.93 kg / 2.05 pounds 931.0 g / 9.1 N
1 mm	25%	2.33 kg / 5.13 pounds 2327.5 g / 22.8 N
2 mm	50%	4.66 kg / 10.26 pounds 4655.0 g / 45.7 N
3 mm	75%	6.98 kg / 15.39 pounds 6982.5 g / 68.5 N
5 mm	100%	9.31 kg / 20.53 pounds 9310.0 g / 91.3 N
10 mm	100%	9.31 kg / 20.53 pounds 9310.0 g / 91.3 N
11 mm	100%	9.31 kg / 20.53 pounds 9310.0 g / 91.3 N
12 mm	100%	9.31 kg / 20.53 pounds 9310.0 g / 91.3 N

A thin metal plate is incapable of absorb the entire magnetic field, which wastes potential of the holder. Should you mount a strong magnet to a thin surface, the field will penetrate right through and the attraction force will be weaker. To achieve the maximum of this neodymium's potential, you need a suitably thick backing of metal. The saturation effect means that on sheet metal structures (e.g., appliance housings), the product shows lower pull force. We advise picking the steel dimension based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MPL 40x10x4x2[7/3.5] / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	9.31 kg / 20.53 pounds 9310.0 g / 91.3 N	OK
40 °C	-2.2%	9.11 kg / 20.07 pounds 9105.2 g / 89.3 N	OK
60 °C	-4.4%	8.90 kg / 19.62 pounds 8900.4 g / 87.3 N
80 °C	-6.6%	8.70 kg / 19.17 pounds 8695.5 g / 85.3 N
100 °C	-28.8%	6.63 kg / 14.61 pounds 6628.7 g / 65.0 N

Standard neodymium magnets lose strength after exceeding the maximum temperature. Protect against heat – excessive heat can permanently destroy this magnet. With increasing heat, the magnet's power temporarily decreases. Refrain from using this magnet close to heaters higher than its working range. Ignoring the limit will result in irreversible degradation of magnetism.

*Important note: Temperature resistance is determined by both grade, and the Permeance Coefficient Pc. Flat magnets (pancake types) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (repulsion) - field collision
MPL 40x10x4x2[7/3.5] / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	18.71 kg / 41.25 pounds 4 164 Gs	2.81 kg / 6.19 pounds 2807 g / 27.5 N	N/A
1 mm	16.57 kg / 36.53 pounds 5 185 Gs	2.49 kg / 5.48 pounds 2486 g / 24.4 N	14.91 kg / 32.88 pounds ~0 Gs
2 mm	14.36 kg / 31.65 pounds 4 826 Gs	2.15 kg / 4.75 pounds 2153 g / 21.1 N	12.92 kg / 28.48 pounds ~0 Gs
3 mm	12.24 kg / 26.98 pounds 4 455 Gs	1.84 kg / 4.05 pounds 1836 g / 18.0 N	11.01 kg / 24.28 pounds ~0 Gs
5 mm	8.61 kg / 18.98 pounds 3 737 Gs	1.29 kg / 2.85 pounds 1291 g / 12.7 N	7.75 kg / 17.08 pounds ~0 Gs
10 mm	3.39 kg / 7.48 pounds 2 346 Gs	0.51 kg / 1.12 pounds 509 g / 5.0 N	3.05 kg / 6.73 pounds ~0 Gs
20 mm	0.67 kg / 1.48 pounds 1 045 Gs	0.10 kg / 0.22 pounds 101 g / 1.0 N	0.61 kg / 1.34 pounds ~0 Gs
50 mm	0.03 kg / 0.06 pounds 207 Gs	0.00 kg / 0.01 pounds 4 g / 0.0 N	0.02 kg / 0.05 pounds ~0 Gs
60 mm	0.01 kg / 0.03 pounds 138 Gs	0.00 kg / 0.00 pounds 2 g / 0.0 N	0.01 kg / 0.02 pounds ~0 Gs
70 mm	0.01 kg / 0.01 pounds 96 Gs	0.00 kg / 0.00 pounds 1 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs
80 mm	0.00 kg / 0.01 pounds 69 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 51 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 39 Gs	0.00 kg / 0.00 pounds 0 g / 0.0 N	0.00 kg / 0.00 pounds ~0 Gs

Two magnets attract each other from a significantly greater distance than a magnet and steel combination. Such a system of magnet-to-magnet produces a massive flux and a wider radius of action. Want to build a powerful holder? Apply two magnets instead of a neodymium and a steel. Remember that when connecting a pair of magnets, the collision energy is huge. The levitation is a bit weaker than the connection force, but still significant.
*Flux density in repulsion mode drops to ~0 Gs at the midpoint of the gap (due to field cancellation).
* Figures apply to sliding force of a pair of identical magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MPL 40x10x4x2[7/3.5] / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	8.5 cm
Hearing aid	10 Gs (1.0 mT)	6.5 cm
Mechanical watch	20 Gs (2.0 mT)	5.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	4.0 cm
Remote	50 Gs (5.0 mT)	3.5 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

A strong magnetic field is a serious hazard to electronics as well as pacemakers. These neodymiums generate a field that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation penetrates the body and plastic. Special caution must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or precise measuring instruments.

Table 8: Dynamics (kinetic energy) - collision effects
MPL 40x10x4x2[7/3.5] / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	28.72 km/h (7.98 m/s)	0.38 J
30 mm	48.67 km/h (13.52 m/s)	1.10 J
50 mm	62.82 km/h (17.45 m/s)	1.83 J
100 mm	88.83 km/h (24.68 m/s)	3.65 J

NdFeB products are delicate – a collision with steel causes immediate chipping. Pay attention to connection velocity – a neodymium left loose speeds with massive force. Impact energy can destroy the magnet or injury to fingers. Always hold the magnet during installation so it doesn't hit with great force against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when working with large magnets.

Table 9: Surface protection spec
MPL 40x10x4x2[7/3.5] / 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)

Neodymium magnets are highly susceptible to corrosion without proper protection. The silver nickel coating also serves an aesthetic function but is not fully waterproof.

Table 10: Construction data (P_c)
MPL 40x10x4x2[7/3.5] / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	9 840 Mx	98.4 µWb
P_c Coefficient	0.26	Low (Flat)

Flux value emitted by the pole surface. Key data for generator designers and motors. The P_c coefficient defines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 40x10x4x2[7/3.5] / N38

Environment	Effective steel pull	Effect
Air (land)	9.31 kg	Standard
Water (riverbed)	10.66 kg (+1.35 kg buoyancy gain)	+14.5%

Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.

Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Wall mount (shear)

*Warning: On a vertical surface, the magnet retains only a fraction of its max power.

2. Steel thickness impact

*Thin steel (e.g. 0.5mm PC case) severely limits the holding force.

3. Power loss vs temp

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.26

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 and environmental data

Material specification

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%

Sustainability

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: 020151-2026

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Model MPL 40x10x4x2[7/3.5] / N38 features a low profile and professional pulling force, making it an ideal solution for building separators and machines. This rectangular block with a force of 91.33 N is ready for shipment in 24h, allowing for rapid realization of your project. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

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 40x10x4x2[7/3.5] / 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 generators and material handling systems. Thanks to the flat surface and high force (approx. 9.31 kg), they are ideal as hidden locks in furniture making and mounting elements in automation. Customers often choose this model for hanging tools on strips and for advanced DIY and modeling projects, where precision and power count.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. 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).

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 40x10x4 mm, which, at a weight of 12 g, makes it an element with high energy density. It is a magnetic block with dimensions 40x10x4 mm and a self-weight of 12 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Advantages and disadvantages of rare earth magnets.

Pros

Besides their durability, neodymium magnets are valued for these benefits:

Their magnetic field is durable, and after around ten years it drops only by ~1% (according to research),
Neodymium magnets are remarkably resistant to demagnetization caused by external interference,
The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
They are known for high magnetic induction at the operating surface, making them more effective,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of precise modeling and adapting to defined requirements,
Significant place in modern technologies – they find application in data components, electric motors, medical devices, also multitasking production systems.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Limitations

What to avoid - cons of neodymium magnets and ways of using them

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
Limited possibility of creating threads in the magnet and complex shapes - recommended is a housing - mounting mechanism.
Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. Additionally, small components of these devices can be problematic in diagnostics medical in case of swallowing.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

The declared magnet strength concerns the maximum value, measured under laboratory conditions, specifically:

using a plate made of mild steel, serving as a circuit closing element
whose transverse dimension reaches at least 10 mm
characterized by even structure
under conditions of ideal adhesion (metal-to-metal)
during detachment in a direction vertical to the plane
in temp. approx. 20°C

Determinants of lifting force in real conditions

In real-world applications, the actual lifting capacity results from many variables, presented from crucial:

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
Surface structure – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
Temperature influence – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate lowers the load capacity.

Safety rules for work with NdFeB magnets

Nickel allergy

Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation appears, cease working with magnets and wear gloves.

Machining danger

Mechanical processing of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Immense force

Handle magnets with awareness. Their powerful strength can shock even professionals. Stay alert and do not underestimate their force.

Danger to the youngest

Only for adults. Tiny parts can be swallowed, causing serious injuries. Store away from kids and pets.

Health Danger

Patients with a ICD have to keep an safe separation from magnets. The magnetic field can interfere with the functioning of the implant.

Protect data

Powerful magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.

Finger safety

Large magnets can break fingers in a fraction of a second. Never put your hand between two strong magnets.

Keep away from electronics

GPS units and mobile phones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can permanently damage the internal compass in your phone.

Operating temperature

Regular neodymium magnets (grade N) lose power when the temperature exceeds 80°C. Damage is permanent.

Material brittleness

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

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

MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

Technical data - MPL 40x10x4x2[7/3.5] / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the assembly - report

Table 1: Static pull force (force vs gap) - characteristics MPL 40x10x4x2[7/3.5] / N38

Table 2: Slippage capacity (vertical surface) MPL 40x10x4x2[7/3.5] / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces MPL 40x10x4x2[7/3.5] / N38

Table 4: Steel thickness (saturation) - sheet metal selection MPL 40x10x4x2[7/3.5] / N38

Table 5: Thermal stability (material behavior) - thermal limit MPL 40x10x4x2[7/3.5] / N38

Table 6: Two magnets (repulsion) - field collision MPL 40x10x4x2[7/3.5] / N38

Table 7: Hazards (implants) - precautionary measures MPL 40x10x4x2[7/3.5] / N38

Table 8: Dynamics (kinetic energy) - collision effects MPL 40x10x4x2[7/3.5] / N38

Table 9: Surface protection spec MPL 40x10x4x2[7/3.5] / N38

Table 10: Construction data (Pc) MPL 40x10x4x2[7/3.5] / N38

Table 11: Physics of underwater searching MPL 40x10x4x2[7/3.5] / N38

1. Wall mount (shear)

2. Steel thickness impact

3. Power loss vs temp

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

Material specification

Sustainability

Pulling force

Field Strength

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Advantages and disadvantages of rare earth magnets.

Pros

Limitations

Holding force characteristics

Maximum magnetic pulling force – what it depends on?

Determinants of lifting force in real conditions

Safety rules for work with NdFeB magnets

Nickel allergy

Machining danger

Immense force

Danger to the youngest

Health Danger

Protect data

Finger safety

Keep away from electronics

Operating temperature

Material brittleness

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (force vs gap) - characteristics
MPL 40x10x4x2[7/3.5] / N38

Table 2: Slippage capacity (vertical surface)
MPL 40x10x4x2[7/3.5] / N38

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MPL 40x10x4x2[7/3.5] / N38

Table 4: Steel thickness (saturation) - sheet metal selection
MPL 40x10x4x2[7/3.5] / N38

Table 5: Thermal stability (material behavior) - thermal limit
MPL 40x10x4x2[7/3.5] / N38

Table 6: Two magnets (repulsion) - field collision
MPL 40x10x4x2[7/3.5] / N38

Table 7: Hazards (implants) - precautionary measures
MPL 40x10x4x2[7/3.5] / N38

Table 8: Dynamics (kinetic energy) - collision effects
MPL 40x10x4x2[7/3.5] / N38

Table 9: Surface protection spec
MPL 40x10x4x2[7/3.5] / N38

Table 10: Construction data (P_c)
MPL 40x10x4x2[7/3.5] / N38

Table 11: Physics of underwater searching
MPL 40x10x4x2[7/3.5] / N38