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MPL 30x5x5 / 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 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

view properties »

4.15 ZŁ with VAT / pcs + price for transport

3.37 ZŁ net + 23% VAT / pcs

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Physical properties - 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 product - data

Presented information represent the result of a engineering analysis. Results were calculated on algorithms for the class Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Use these data as a supplementary guide 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	strong
1 mm	3235 Gs 323.5 mT	3.70 kg / 8.16 LBS 3702.2 g / 36.3 N	strong
2 mm	2271 Gs 227.1 mT	1.82 kg / 4.02 LBS 1825.0 g / 17.9 N	low risk
3 mm	1628 Gs 162.8 mT	0.94 kg / 2.07 LBS 937.0 g / 9.2 N	low risk
5 mm	927 Gs 92.7 mT	0.30 kg / 0.67 LBS 304.2 g / 3.0 N	low risk
10 mm	342 Gs 34.2 mT	0.04 kg / 0.09 LBS 41.4 g / 0.4 N	low risk
15 mm	166 Gs 16.6 mT	0.01 kg / 0.02 LBS 9.7 g / 0.1 N	low risk
20 mm	92 Gs 9.2 mT	0.00 kg / 0.01 LBS 3.0 g / 0.0 N	low risk
30 mm	36 Gs 3.6 mT	0.00 kg / 0.00 LBS 0.5 g / 0.0 N	low risk
50 mm	9 Gs 0.9 mT	0.00 kg / 0.00 LBS 0.0 g / 0.0 N	low risk

Pulling power weakens drastically with every mm of spacing. Note that every additional insulation layer (e.g., dirt, paint, veneer) significantly weakens the grip. Magnets operate strongest in perfect adhesion; distance drastically cuts the force. Observe how flashily the parameters fall, when the product does not adhere tightly to the metal substrate. When calculating the mounting, discard unnecessary gaps.

Table 2: Sliding hold (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 table below indicates the approximate shear load necessary to cause the sliding of the magnet downwards against a upright steel wall (considering standard friction). This value depends on the distance between the magnet and the surface.

Table 3: Vertical assembly (sliding) - 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 holder on a vertical surface (e.g., a car body), it will only hold just about 20%-30% of nominal attraction strength. Gravity and a low friction coefficient cause that products slide down easier than they detach. Designing a hanger? Note that the shear force is significantly lower than the perpendicular breakaway force. On a smooth steel, the holder will slide down under a much lighter weight. Using a rubber pad can effectively improve the result.

Table 4: Steel thickness (saturation) - 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 unable to focus the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a thin surface, the field will pass right through and the pull force will drop sharply. To achieve the maximum of this neodymium's potential, you require a sufficiently solid element of steel. The saturation phenomenon causes that on sheet metal structures (e.g., thin profiles), the product works worse. We advise picking the steel cross-section based on the following data.

Table 5: Thermal resistance (stability) - power drop
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

Classic neodymiums irreversibly lose parameters above the temperature limit. Watch out for overheating – excessive heat can permanently destroy this product. With every degree above norm, the magnet's capacity briefly decreases. Refrain from using this magnet close to ovens exceeding its operating temperature limit. Too high temperature will cause irreversible degradation of magnetism.

*Engineering note: Heat tolerance is determined by both grade, and the Permeance Coefficient Pc. Thin magnets (low Pc) risk losing magnetic properties under lower heat stress compared to rod magnets. Red status in the table indicates a risk of irreversible loss for this specific geometry.

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

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding 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 magnetic products attract each other from a much further distance than a magnet and sheet setup. The connection of two magnets generates a stronger field and a larger range of performance. Designing a solid fastener? Utilize two neodymiums instead of a neodymium and a steel. Be careful that when attracting two neodymiums, the pinch force is huge. The levitation is marginally weaker than the connection force, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs at the midpoint of the gap (resulting from vector opposition).
Note: Calculations demonstrate friction force of dual identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - warnings
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
Mechanical watch	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

Powerful magnet radiation is a serious hazard to electronics as well as medical implants. These magnets produce a field that destroys function of sensitive medical devices. Notice: the unseen radiation acts through matter and plastic. Increased vigilance must be taken by people with hearing aids and insulin pumps. The risk also applies to: automatic timepieces, remotes, membranes, and displays. Do not bring the product near payment cards, HDD media, or sensitive navigation tools.

Table 8: Collisions (kinetic energy) - collision effects
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 violent impact against metal causes immediate chipping. Watch the impact speed – a magnet released freely speeds with massive force. Kinetic force can trigger coating fragments or injury to fingers. Be sure to control the product during bringing near metal so it doesn't slam with momentum against the metal. A contact at a velocity of dozens of km/h ends with a crack of the magnet. Use safety goggles when handling with large magnets.

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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Construction 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. Essential parameter for generator designers and motors. The P_c coefficient defines the working geometry.

Table 11: Underwater work (magnet fishing)
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.

Contrary to myths, water does not block the magnetic field. However, remember the water resistance when pulling the rope quickly.

1. Sliding resistance

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

2. Steel thickness impact

*Thin metal sheet (e.g. 0.5mm PC case) significantly weakens the holding force.

3. Power loss vs temp

*For standard magnets, the safety limit is 80°C.

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

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

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

Technical and environmental data

Chemical composition

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

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This product is an extremely strong magnet in the shape of a plate 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 immediately from our warehouse in Poland. Additionally, its Ni-Cu-Ni coating secures it against corrosion in standard operating conditions, giving it an aesthetic appearance.

Separating block magnets requires a technique based on sliding (moving one relative to the other), rather than forceful pulling apart. To separate the MPL 30x5x5 / 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. 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. Thanks to the flat surface and high force (approx. 7.03 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.

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. 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.

Standardly, the MPL 30x5x5 / N38 model is magnetized through the thickness (dimension 5 mm), which means that the N and S poles are located on its largest, flat surfaces. Thanks to this, it works best when "sticking" to sheet metal or another magnet with a large surface area. Such a pole arrangement ensures maximum holding capacity when pressing against the sheet, creating a closed magnetic circuit.

The presented product is a neodymium magnet with precisely defined parameters: 30 mm (length), 5 mm (width), and 5 mm (thickness). It is a magnetic block with dimensions 30x5x5 mm and a self-weight of 5.63 g, ready to work at temperatures up to 80°C. The protective [NiCuNi] coating secures the magnet against corrosion.

Strengths as well as weaknesses of neodymium magnets.

Strengths

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

They retain full power for almost ten years – the loss is just ~1% (in theory),
They do not lose their magnetic properties even under external field action,
Thanks to the metallic finish, the layer of Ni-Cu-Ni, gold, or silver-plated gives an modern appearance,
They feature high magnetic induction at the operating surface, making them more effective,
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...
Thanks to modularity in forming and the ability to modify to complex applications,
Versatile presence in modern industrial fields – they are commonly used in HDD drives, motor assemblies, medical devices, as well as technologically advanced constructions.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of NdFeB magnets:

To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
We recommend cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complicated shapes.
Health risk resulting from small fragments of magnets are risky, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small components of these magnets are able to disrupt the diagnostic process medical after entering the body.
With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

The declared magnet strength represents the maximum value, measured under ideal test conditions, meaning:

using a plate made of low-carbon steel, serving as a magnetic yoke
possessing a massiveness of min. 10 mm to avoid saturation
with a plane cleaned and smooth
under conditions of gap-free contact (metal-to-metal)
under vertical force vector (90-degree angle)
at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

It is worth knowing that the magnet holding may be lower influenced by elements below, in order of importance:

Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Chemical composition of the base – mild steel gives the best results. Alloy admixtures lower magnetic permeability and lifting capacity.
Surface finish – ideal contact is possible only on polished steel. Rough texture create air cushions, reducing force.
Thermal environment – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Warnings

Thermal limits

Control the heat. Exposing the magnet to high heat will permanently weaken its magnetic structure and strength.

Caution required

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Threat to electronics

Equipment safety: Strong magnets can damage data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Serious injuries

Large magnets can smash fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Life threat

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Mechanical processing

Fire hazard: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.

Choking Hazard

Product intended for adults. Tiny parts pose a choking risk, causing serious injuries. Keep away from children and animals.

Skin irritation risks

Medical facts indicate that nickel (the usual finish) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands or select encased magnets.

Keep away from electronics

Navigation devices and smartphones are extremely susceptible to magnetism. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Risk of cracking

NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them breaking into small pieces.

Safety First! Learn more about risks in the article: Safety of working with magnets.

MPL 30x5x5 / N38 - lamellar magnet

Physical properties - MPL 30x5x5 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical analysis of the product - data

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

Table 2: Sliding hold (wall) MPL 30x5x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull MPL 30x5x5 / N38

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

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

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

Table 7: Hazards (implants) - warnings MPL 30x5x5 / N38

Table 8: Collisions (kinetic energy) - collision effects MPL 30x5x5 / N38

Table 9: Surface protection spec MPL 30x5x5 / N38

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

Table 11: Underwater work (magnet fishing) MPL 30x5x5 / N38

1. Sliding resistance

2. Steel thickness impact

3. Power loss vs temp

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

Chemical composition

Environmental data

Force (pull)

Field Strength

Other products

MW 25x6 / N38 - cylindrical magnet

MW 40x10 / N38 - cylindrical magnet

UMS 42x12.5x6.5x9 / N38 - conical magnetic holder

MPL 25x25x10 / N38 - lamellar magnet

Strengths as well as weaknesses of neodymium magnets.

Strengths

Weaknesses

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

Determinants of lifting force in real conditions

Warnings

Thermal limits

Caution required

Threat to electronics

Serious injuries

Life threat

Mechanical processing

Choking Hazard

Skin irritation risks

Keep away from electronics

Risk of cracking

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Sliding hold (wall)
MPL 30x5x5 / N38

Table 3: Vertical assembly (sliding) - vertical pull
MPL 30x5x5 / N38

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

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

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

Table 7: Hazards (implants) - warnings
MPL 30x5x5 / N38

Table 8: Collisions (kinetic energy) - collision effects
MPL 30x5x5 / N38

Table 9: Surface protection spec
MPL 30x5x5 / N38

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

Table 11: Underwater work (magnet fishing)
MPL 30x5x5 / N38