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MPL 7x7x3 / 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 020176

GTIN/EAN: 5906301811824

5.00

length

7 mm [±0,1 mm]

Width

7 mm [±0,1 mm]

Height

3 mm [±0,1 mm]

Weight

1.1 g

Magnetization Direction

↑ axial

Load capacity

1.60 kg / 15.70 N

Magnetic Induction

376.99 mT / 3770 Gs

Coating

[NiCuNi] Nickel

product parameters »

0.541 ZŁ with VAT / pcs + price for transport

0.440 ZŁ net + 23% VAT / pcs

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Technical data of the product - MPL 7x7x3 / N38 - lamellar magnet

Specification / characteristics - MPL 7x7x3 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020176
GTIN/EAN	5906301811824
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	7 mm [±0,1 mm]
Width	7 mm [±0,1 mm]
Height	3 mm [±0,1 mm]
Weight	1.1 g
Magnetization Direction	↑ axial
Load capacity ~ ?	1.60 kg / 15.70 N
Magnetic Induction ~ ?	376.99 mT / 3770 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 7x7x3 / 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 product - report

Presented data are the result of a engineering analysis. Results rely on models for the class Nd₂Fe₁₄B. Actual conditions may differ. Treat these data as a supplementary guide for designers.

Table 1: Static pull force (pull vs distance) - characteristics
MPL 7x7x3 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3767 Gs 376.7 mT	1.60 kg / 3.53 LBS 1600.0 g / 15.7 N	low risk
1 mm	2886 Gs 288.6 mT	0.94 kg / 2.07 LBS 939.5 g / 9.2 N	low risk
2 mm	2048 Gs 204.8 mT	0.47 kg / 1.04 LBS 472.8 g / 4.6 N	low risk
3 mm	1412 Gs 141.2 mT	0.22 kg / 0.50 LBS 224.8 g / 2.2 N	low risk
5 mm	686 Gs 68.6 mT	0.05 kg / 0.12 LBS 53.0 g / 0.5 N	low risk
10 mm	165 Gs 16.5 mT	0.00 kg / 0.01 LBS 3.1 g / 0.0 N	low risk
15 mm	60 Gs 6.0 mT	0.00 kg / 0.00 LBS 0.4 g / 0.0 N	low risk
20 mm	28 Gs 2.8 mT	0.00 kg / 0.00 LBS 0.1 g / 0.0 N	low risk
30 mm	9 Gs 0.9 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk
50 mm	2 Gs 0.2 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Magnetic force drops sharply with every subsequent millimeter of distance. Note that even a very thin break (e.g., contamination, varnish, veneer) strongly reduces the pull force. Neodymiums operate most effectively at the point of direct contact; gap weakens the force. Observe how quickly the load capacity plummet, when the magnet does not adhere flatly to the metal substrate. When designing the assembly, eliminate unnecessary gaps.

Table 2: Sliding hold (wall)
MPL 7x7x3 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
1 mm	Stal (~0.2)	0.19 kg / 0.41 LBS 188.0 g / 1.8 N
2 mm	Stal (~0.2)	0.09 kg / 0.21 LBS 94.0 g / 0.9 N
3 mm	Stal (~0.2)	0.04 kg / 0.10 LBS 44.0 g / 0.4 N
5 mm	Stal (~0.2)	0.01 kg / 0.02 LBS 10.0 g / 0.1 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 presents the estimated shear load sufficient to start the slippage of the magnet downwards on a vertical steel plate (assuming typical friction). This parameter depends on the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - vertical pull
MPL 7x7x3 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	0.48 kg / 1.06 LBS 480.0 g / 4.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.32 kg / 0.71 LBS 320.0 g / 3.1 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.16 kg / 0.35 LBS 160.0 g / 1.6 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	0.80 kg / 1.76 LBS 800.0 g / 7.8 N

When hanging a element on a vertical wall (e.g., a board), it will maintain only approx. 20%-30% of nominal attraction strength. Gravity and a low friction coefficient influence the fact that holders slide down easier than they pull off. Want to create a vertical fastening? Remember that the sliding force is much weaker than the perpendicular breakaway force. On a painted metal, the magnet will slip down under a significantly smaller cargo. Utilizing a rubberized pad can significantly raise the stability.

Table 4: Material efficiency (saturation) - power losses
MPL 7x7x3 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.16 kg / 0.35 LBS 160.0 g / 1.6 N
1 mm	25%	0.40 kg / 0.88 LBS 400.0 g / 3.9 N
2 mm	50%	0.80 kg / 1.76 LBS 800.0 g / 7.8 N
3 mm	75%	1.20 kg / 2.65 LBS 1200.0 g / 11.8 N
5 mm	100%	1.60 kg / 3.53 LBS 1600.0 g / 15.7 N
10 mm	100%	1.60 kg / 3.53 LBS 1600.0 g / 15.7 N
11 mm	100%	1.60 kg / 3.53 LBS 1600.0 g / 15.7 N
12 mm	100%	1.60 kg / 3.53 LBS 1600.0 g / 15.7 N

A thin metal plate cannot take in the entire magnetic field, which squanders power of the holder. If you mount a strong magnet to a too thin substrate, the magnetism will penetrate right through and the pull force will drop sharply. To achieve 100% of this neodymium's potential, you need a suitably thick element of steel. The material oversaturation causes that on thin elements (e.g., appliance housings), the product shows lower pull force. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MPL 7x7x3 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	1.60 kg / 3.53 LBS 1600.0 g / 15.7 N	OK
40 °C	-2.2%	1.56 kg / 3.45 LBS 1564.8 g / 15.4 N	OK
60 °C	-4.4%	1.53 kg / 3.37 LBS 1529.6 g / 15.0 N
80 °C	-6.6%	1.49 kg / 3.29 LBS 1494.4 g / 14.7 N
100 °C	-28.8%	1.14 kg / 2.51 LBS 1139.2 g / 11.2 N

Classic neodymiums lose parameters after exceeding the maximum temperature. Protect against heat – heat can permanently destroy this product. With every degree above norm, the neodymium's power momentarily drops. Avoid using this product close to ovens higher than its working range. Exceeding the critical threshold will cause irreversible degradation of magnetism.

*Engineering note: Thermal stability is determined by both grade, and the Permeance Coefficient Pc. Low-profile magnets (low permeance coefficient) may lose charge permanently under lower heat stress than taller cylinders. Warning indicator in the table signals permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 7x7x3 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	4.29 kg / 9.45 LBS 5 173 Gs	0.64 kg / 1.42 LBS 643 g / 6.3 N	N/A
1 mm	3.38 kg / 7.44 LBS 6 685 Gs	0.51 kg / 1.12 LBS 506 g / 5.0 N	3.04 kg / 6.70 LBS ~0 Gs
2 mm	2.52 kg / 5.55 LBS 5 773 Gs	0.38 kg / 0.83 LBS 378 g / 3.7 N	2.27 kg / 4.99 LBS ~0 Gs
3 mm	1.81 kg / 3.99 LBS 4 893 Gs	0.27 kg / 0.60 LBS 271 g / 2.7 N	1.63 kg / 3.59 LBS ~0 Gs
5 mm	0.88 kg / 1.93 LBS 3 405 Gs	0.13 kg / 0.29 LBS 131 g / 1.3 N	0.79 kg / 1.74 LBS ~0 Gs
10 mm	0.14 kg / 0.31 LBS 1 372 Gs	0.02 kg / 0.05 LBS 21 g / 0.2 N	0.13 kg / 0.28 LBS ~0 Gs
20 mm	0.01 kg / 0.02 LBS 329 Gs	0.00 kg / 0.00 LBS 1 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs
50 mm	0.00 kg / 0.00 LBS 30 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 18 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 12 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 8 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 6 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 4 Gs	0.00 kg / 0.00 LBS 0 g / 0.0 N	0.00 kg / 0.00 LBS ~0 Gs

Two strong neodymiums attract each other from a significantly greater distance than a neodymium and metal combination. The setup of magnet-to-magnet generates a stronger field and a further horizon of performance. Planning to create a solid fastener? Utilize two neodymiums instead of a neodymium and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is extreme. The levitation is slightly lower than the attraction, but still significant.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center of the gap (due to field cancellation).
* Results refer to shear force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Safety (HSE) (implants) - warnings
MPL 7x7x3 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	4.0 cm
Hearing aid	10 Gs (1.0 mT)	3.0 cm
Timepiece	20 Gs (2.0 mT)	2.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	2.0 cm
Remote	50 Gs (5.0 mT)	2.0 cm
Payment card	400 Gs (40.0 mT)	1.0 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation poses a serious hazard to IT equipment and pacemakers. These magnets generate a flux that destroys function of sensitive medical devices. Remember: the unseen radiation penetrates the body and glass. Increased vigilance must be taken by people with hearing aids and insulin pumps. Also at risk are: automatic timepieces, remotes, speakers, and screens. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - collision effects
MPL 7x7x3 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	38.51 km/h (10.70 m/s)	0.06 J
30 mm	66.62 km/h (18.51 m/s)	0.19 J
50 mm	86.01 km/h (23.89 m/s)	0.31 J
100 mm	121.63 km/h (33.79 m/s)	0.63 J

NdFeB products are very brittle – a strong collision with metal causes immediate chipping. Watch the impact speed – a neodymium left loose speeds with massive force. Impact energy can trigger coating fragments or dangerous crushing to skin. Hold the magnet firmly during mounting so it doesn't slam with momentum against the steel surface. A collision at high speed means shattering of the magnet. Wear safety glasses when handling with large magnets.

Table 9: Coating parameters (durability)
MPL 7x7x3 / 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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Electrical data (P_c)
MPL 7x7x3 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	1 909 Mx	19.1 µWb
P_c Coefficient	0.48	Low (Flat)

Flux value emitted by the magnet pole. Essential parameter for generator designers as well as sensors. The P_c coefficient determines the magnet's operating point.

Table 11: Physics of underwater searching
MPL 7x7x3 / N38

Environment	Effective steel pull	Effect
Air (land)	1.60 kg	Standard
Water (riverbed)	1.83 kg (+0.23 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.

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

1. Sliding resistance

*Warning: On a vertical wall, the magnet holds only ~20% of its max power.

2. Steel saturation

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

3. Thermal stability

*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) = 0.48

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%

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: 020176-2026

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MPL 3x3x2 / N38 - lamellar magnet

0.1722 ZŁ brutto / pcs

Model MPL 7x7x3 / N38 features a flat shape and professional pulling force, making it a perfect solution for building separators and machines. As a block magnet with high power (approx. 1.60 kg), this product is available immediately from our warehouse in Poland. Furthermore, its Ni-Cu-Ni coating protects 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. To separate the MPL 7x7x3 / N38 model, firmly slide one magnet over the edge of the other until the attraction force decreases. We recommend extreme caution, 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 7x7x3 / N38 are the foundation for many industrial devices, such as magnetic separators and linear motors. Thanks to the flat surface and high force (approx. 1.60 kg), they are ideal as hidden locks 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 7x7x3 / N38, it is best to use two-component adhesives (e.g., UHU Endfest, Distal), which ensure a durable bond with metal or plastic. Double-sided tape cushions vibrations, which is an advantage when mounting in moving elements. Avoid chemically aggressive glues or hot glue, which can demagnetize neodymium (above 80°C).

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 7x7x3 mm, which, at a weight of 1.1 g, makes it an element with impressive energy density. It is a magnetic block with dimensions 7x7x3 mm and a self-weight of 1.1 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.

Benefits

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

They do not lose power, even during nearly ten years – the reduction in lifting capacity is only ~1% (theoretically),
Magnets effectively protect themselves against demagnetization caused by ambient magnetic noise,
By using a reflective layer of silver, the element gains an elegant look,
Neodymium magnets deliver maximum magnetic induction on a small area, which allows for strong attraction,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Thanks to freedom in shaping and the capacity to adapt to complex applications,
Universal use in innovative solutions – they are utilized in hard drives, electric drive systems, precision medical tools, and complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Limitations

Disadvantages of NdFeB magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
NdFeB magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 very resistant to heat
They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
Due to limitations in producing nuts and complex shapes in magnets, we propose using a housing - magnetic holder.
Health risk to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Furthermore, small components of these devices are able to complicate diagnosis medical in case of swallowing.
Due to complex production process, their price exceeds standard values,

Lifting parameters

Magnetic strength at its maximum – what it depends on?

The declared magnet strength concerns the peak performance, obtained under optimal environment, meaning:

using a base made of low-carbon steel, acting as a circuit closing element
possessing a massiveness of min. 10 mm to avoid saturation
with a surface cleaned and smooth
under conditions of no distance (metal-to-metal)
under vertical force vector (90-degree angle)
at room temperature

Determinants of practical lifting force of a magnet

Bear in mind that the magnet holding may be lower depending on the following factors, starting with the most relevant:

Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
Base massiveness – insufficiently thick sheet causes magnetic saturation, causing part of the power to be lost to the other side.
Plate material – low-carbon steel gives the best results. Alloy admixtures reduce magnetic permeability and holding force.
Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
Thermal factor – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet and the plate decreases the load capacity.

Warnings

Conscious usage

Exercise caution. Rare earth magnets act from a distance and snap with massive power, often faster than you can react.

Implant safety

Warning for patients: Powerful magnets affect medical devices. Maintain at least 30 cm distance or request help to work with the magnets.

Warning for allergy sufferers

A percentage of the population experience a contact allergy to Ni, which is the common plating for NdFeB magnets. Prolonged contact can result in an allergic reaction. It is best to wear safety gloves.

Serious injuries

Danger of trauma: The attraction force is so immense that it can result in hematomas, crushing, and broken bones. Use thick gloves.

Material brittleness

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Clashing of two magnets leads to them cracking into shards.

Thermal limits

Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.

Fire warning

Machining of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Precision electronics

Note: rare earth magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your mobile, device, and navigation systems.

Do not give to children

Absolutely keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are very dangerous.

Cards and drives

Avoid bringing magnets near a wallet, laptop, or screen. The magnetic field can destroy these devices and erase data from cards.

Warning! Looking for details? Check our post: Why are neodymium magnets dangerous?

MPL 7x7x3 / N38 - lamellar magnet

Technical data of the product - MPL 7x7x3 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - report

Table 1: Static pull force (pull vs distance) - characteristics MPL 7x7x3 / N38

Table 2: Sliding hold (wall) MPL 7x7x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull MPL 7x7x3 / N38

Table 4: Material efficiency (saturation) - power losses MPL 7x7x3 / N38

Table 5: Thermal resistance (stability) - thermal limit MPL 7x7x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MPL 7x7x3 / N38

Table 7: Safety (HSE) (implants) - warnings MPL 7x7x3 / N38

Table 8: Impact energy (cracking risk) - collision effects MPL 7x7x3 / N38

Table 9: Coating parameters (durability) MPL 7x7x3 / N38

Table 10: Electrical data (Pc) MPL 7x7x3 / N38

Table 11: Physics of underwater searching MPL 7x7x3 / N38

1. Sliding resistance

2. Steel saturation

3. Thermal stability

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

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Field

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MPL 3x3x2 / N38 - lamellar magnet

Advantages and disadvantages of rare earth magnets.

Benefits

Limitations

Lifting parameters

Magnetic strength at its maximum – what it depends on?

Determinants of practical lifting force of a magnet

Warnings

Conscious usage

Implant safety

Warning for allergy sufferers

Serious injuries

Material brittleness

Thermal limits

Fire warning

Precision electronics

Do not give to children

Cards and drives

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static pull force (pull vs distance) - characteristics
MPL 7x7x3 / N38

Table 2: Sliding hold (wall)
MPL 7x7x3 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MPL 7x7x3 / N38

Table 4: Material efficiency (saturation) - power losses
MPL 7x7x3 / N38

Table 5: Thermal resistance (stability) - thermal limit
MPL 7x7x3 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MPL 7x7x3 / N38

Table 7: Safety (HSE) (implants) - warnings
MPL 7x7x3 / N38

Table 8: Impact energy (cracking risk) - collision effects
MPL 7x7x3 / N38

Table 9: Coating parameters (durability)
MPL 7x7x3 / N38

Table 10: Electrical data (P_c)
MPL 7x7x3 / N38

Table 11: Physics of underwater searching
MPL 7x7x3 / N38