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MPL 20x8x4 / N38 - lamellar magnet

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

lamellar magnet

Catalog no 020133

GTIN/EAN: 5906301811398

5.00

length

20 mm [±0,1 mm]

Width

8 mm [±0,1 mm]

Height

4 mm [±0,1 mm]

Weight

4.8 g

Magnetization Direction

↑ axial

Load capacity

4.79 kg / 46.98 N

Magnetic Induction

336.99 mT / 3370 Gs

Coating

[NiCuNi] Nickel

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Physical properties - MPL 20x8x4 / N38 - lamellar magnet

Specification / characteristics - MPL 20x8x4 / N38 - lamellar magnet

properties

properties	values
Cat. no.	020133
GTIN/EAN	5906301811398
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	20 mm [±0,1 mm]
Width	8 mm [±0,1 mm]
Height	4 mm [±0,1 mm]
Weight	4.8 g
Magnetization Direction	↑ axial
Load capacity ~ ?	4.79 kg / 46.98 N
Magnetic Induction ~ ?	336.99 mT / 3370 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MPL 20x8x4 / 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 modeling of the product - report

The following information constitute the outcome of a mathematical simulation. Values are based on models for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Treat these calculations as a preliminary roadmap when designing systems.

Table 1: Static force (force vs distance) - interaction chart
MPL 20x8x4 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	3368 Gs 336.8 mT	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N	warning
1 mm	2818 Gs 281.8 mT	3.35 kg / 7.39 lbs 3352.3 g / 32.9 N	warning
2 mm	2266 Gs 226.6 mT	2.17 kg / 4.78 lbs 2167.6 g / 21.3 N	warning
3 mm	1794 Gs 179.4 mT	1.36 kg / 3.00 lbs 1358.6 g / 13.3 N	low risk
5 mm	1130 Gs 113.0 mT	0.54 kg / 1.19 lbs 538.9 g / 5.3 N	low risk
10 mm	416 Gs 41.6 mT	0.07 kg / 0.16 lbs 73.0 g / 0.7 N	low risk
15 mm	187 Gs 18.7 mT	0.01 kg / 0.03 lbs 14.7 g / 0.1 N	low risk
20 mm	97 Gs 9.7 mT	0.00 kg / 0.01 lbs 4.0 g / 0.0 N	low risk
30 mm	35 Gs 3.5 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

Magnetic force decreases significantly per each millimeter of gap. Remember that every additional insulation layer (e.g., contamination, paint, dust) significantly reduces the pull force. Neodymiums operate optimally in perfect adhesion; gap nullifies the power. Analyze how flashily the load capacity drop, when the magnet does not touch directly to the metal substrate. When calculating the assembly, eliminate unnecessary gaps.

Table 2: Shear hold (vertical surface)
MPL 20x8x4 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
1 mm	Stal (~0.2)	0.67 kg / 1.48 lbs 670.0 g / 6.6 N
2 mm	Stal (~0.2)	0.43 kg / 0.96 lbs 434.0 g / 4.3 N
3 mm	Stal (~0.2)	0.27 kg / 0.60 lbs 272.0 g / 2.7 N
5 mm	Stal (~0.2)	0.11 kg / 0.24 lbs 108.0 g / 1.1 N
10 mm	Stal (~0.2)	0.01 kg / 0.03 lbs 14.0 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 presents the theoretical holding capacity necessary to cause the shifting of the magnet downwards along a upright steel plate (assuming standard friction coefficient). The holding force varies with the separation distance between the magnet and the metal.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 20x8x4 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	1.44 kg / 3.17 lbs 1437.0 g / 14.1 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	0.96 kg / 2.11 lbs 958.0 g / 9.4 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.48 kg / 1.06 lbs 479.0 g / 4.7 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	2.40 kg / 5.28 lbs 2395.0 g / 23.5 N

When mounting a element on a vertical wall (e.g., a car body), it will only hold only about 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip cause that magnets move down easier than they pull off. Designing a hanger? Consider that the shear force is noticeably lower than the perpendicular breakaway force. On a slippery surface, the magnet will give way down under a significantly smaller weight. Application of an anti-slip coating can drastically improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 20x8x4 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.48 kg / 1.06 lbs 479.0 g / 4.7 N
1 mm	25%	1.20 kg / 2.64 lbs 1197.5 g / 11.7 N
2 mm	50%	2.40 kg / 5.28 lbs 2395.0 g / 23.5 N
3 mm	75%	3.59 kg / 7.92 lbs 3592.5 g / 35.2 N
5 mm	100%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N
10 mm	100%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N
11 mm	100%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N
12 mm	100%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N

A too thin steel cannot absorb the full magnetic flux, which weakens actual performance of the magnet. Should you mount a strong magnet to a weak sheet, the flux will pass right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you need a suitably thick element of steel. The saturation phenomenon means that on thin elements (e.g., thin profiles), the magnet holds weaker. We recommend selecting the steel cross-section based on the following data.

Table 5: Thermal resistance (material behavior) - resistance threshold
MPL 20x8x4 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	4.79 kg / 10.56 lbs 4790.0 g / 47.0 N	OK
40 °C	-2.2%	4.68 kg / 10.33 lbs 4684.6 g / 46.0 N	OK
60 °C	-4.4%	4.58 kg / 10.10 lbs 4579.2 g / 44.9 N
80 °C	-6.6%	4.47 kg / 9.86 lbs 4473.9 g / 43.9 N
100 °C	-28.8%	3.41 kg / 7.52 lbs 3410.5 g / 33.5 N

Standard neodymium magnets irreversibly lose parameters above the temperature limit. Avoid high temperatures – excessive heat can permanently damage this magnet. As the temperature rises, the neodymium's capacity temporarily drops. Do not use this product in hot environments exceeding its working range. Too high temperature will cause permanent loss of magnetic properties.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Thin magnets (low Pc) are more susceptible to demagnetization at lower temperatures than long magnets. Red status in the table signals a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field collision
MPL 20x8x4 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	11.19 kg / 24.67 lbs 4 784 Gs	1.68 kg / 3.70 lbs 1678 g / 16.5 N	N/A
1 mm	9.49 kg / 20.93 lbs 6 205 Gs	1.42 kg / 3.14 lbs 1424 g / 14.0 N	8.54 kg / 18.84 lbs ~0 Gs
2 mm	7.83 kg / 17.26 lbs 5 635 Gs	1.17 kg / 2.59 lbs 1175 g / 11.5 N	7.05 kg / 15.54 lbs ~0 Gs
3 mm	6.34 kg / 13.97 lbs 5 069 Gs	0.95 kg / 2.10 lbs 951 g / 9.3 N	5.70 kg / 12.57 lbs ~0 Gs
5 mm	4.02 kg / 8.85 lbs 4 035 Gs	0.60 kg / 1.33 lbs 602 g / 5.9 N	3.61 kg / 7.97 lbs ~0 Gs
10 mm	1.26 kg / 2.78 lbs 2 259 Gs	0.19 kg / 0.42 lbs 189 g / 1.9 N	1.13 kg / 2.50 lbs ~0 Gs
20 mm	0.17 kg / 0.38 lbs 832 Gs	0.03 kg / 0.06 lbs 26 g / 0.3 N	0.15 kg / 0.34 lbs ~0 Gs
50 mm	0.00 kg / 0.01 lbs 112 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 70 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 46 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 32 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 23 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 17 Gs	0.00 kg / 0.00 lbs 0 g / 0.0 N	0.00 kg / 0.00 lbs ~0 Gs

Two strong neodymiums interact from a significantly greater distance than a neodymium and metal setup. The setup of two magnets generates a stronger field and a larger range of operation. Want to build a powerful holder? Utilize two neodymiums instead of one magnet and a striker plate. Be careful that when bringing together two magnets, the pinch force is extreme. The repulsion force is a bit weaker than the attraction, but still large.
*The magnetic induction between like poles is approximately ~0 Gs at the midpoint between the magnets (caused by magnetic field nullification).
* Figures demonstrate shear force of a pair of matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - warnings
MPL 20x8x4 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	6.5 cm
Hearing aid	10 Gs (1.0 mT)	5.0 cm
Timepiece	20 Gs (2.0 mT)	4.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	3.0 cm
Remote	50 Gs (5.0 mT)	3.0 cm
Payment card	400 Gs (40.0 mT)	1.5 cm
HDD hard drive	600 Gs (60.0 mT)	1.0 cm

Powerful magnet radiation is a real danger to IT equipment and pacemakers. These NdFeB products generate a flux that disrupts operation of digital equipment. Be aware: the unseen radiation passes through tissues and housings. Special caution must be taken by people with cochlear implants and drug dispensers. Influence will be felt by: automatic timepieces, car keys, speakers, and screens. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - warning
MPL 20x8x4 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	32.16 km/h (8.93 m/s)	0.19 J
30 mm	55.18 km/h (15.33 m/s)	0.56 J
50 mm	71.24 km/h (19.79 m/s)	0.94 J
100 mm	100.75 km/h (27.99 m/s)	1.88 J

Neodymium magnets are delicate – a strong collision with metal risks their cracking. Control the attraction moment – a magnet released freely becomes dangerous. Striking energy can destroy the magnet or painful pinches to skin. Always hold the magnet during bringing near metal so it doesn't hit violently against the metal. A collision at high speed almost guarantees destruction of the magnet. Use safety goggles when playing with large magnets.

Table 9: Surface protection spec
MPL 20x8x4 / 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. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (P_c)
MPL 20x8x4 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	5 277 Mx	52.8 µWb
P_c Coefficient	0.38	Low (Flat)

Total magnetic flux passing through the pole surface. Essential parameter when building generators as well as sensors. P_c value defines the magnet's operating point.

Table 11: Underwater work (magnet fishing)
MPL 20x8x4 / N38

Environment	Effective steel pull	Effect
Air (land)	4.79 kg	Standard
Water (riverbed)	5.48 kg (+0.69 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!

The magnetic field penetrates through water without any losses. Buoyancy helps in lifting finds.

1. Sliding resistance

*Warning: On a vertical surface, the magnet holds just approx. 20-30% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Heat tolerance

*For N38 grade, the max working temp is 80°C.

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.38

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

Engineering data and GPSR

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: 020133-2026

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MW 3x1 / N38 - cylindrical magnet

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This product is an extremely strong plate magnet made of NdFeB material, which, with dimensions of 20x8x4 mm and a weight of 4.8 g, guarantees premium class connection. As a block magnet with high power (approx. 4.79 kg), this product is available immediately from our warehouse in Poland. The durable anti-corrosion layer ensures a long lifespan in a dry environment, protecting the core from oxidation.

The key to success is 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. Watch your fingers! Magnets with a force of 4.79 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 wind generators and material handling systems. Thanks to the flat surface and high force (approx. 4.79 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.

Cyanoacrylate glues (super glue type) are good only for small magnets; for larger plates, we recommend resins. For lighter applications or mounting on smooth surfaces, branded foam tape (e.g., 3M VHB) will work, provided the surface is perfectly degreased. 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 20x8x4 / N38 model is magnetized axially (dimension 4 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. This is the most popular configuration for block magnets used in separators and holders.

This model is characterized by dimensions 20x8x4 mm, which, at a weight of 4.8 g, makes it an element with high energy density. The key parameter here is the holding force amounting to approximately 4.79 kg (force ~46.98 N), which, with such a compact shape, proves the high grade of the material. The product meets the standards for N38 grade magnets.

Pros and cons of rare earth magnets.

Pros

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They do not lose strength, even during around ten years – the drop in strength is only ~1% (theoretically),
They are noted for resistance to demagnetization induced by presence of other magnetic fields,
Thanks to the elegant finish, the surface of Ni-Cu-Ni, gold-plated, or silver-plated gives an professional appearance,
Neodymium magnets generate maximum magnetic induction on a small surface, which allows for strong attraction,
Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling operation at temperatures reaching 230°C and above...
Considering the option of precise molding and customization to custom projects, NdFeB magnets can be created in a variety of forms and dimensions, which expands the range of possible applications,
Universal use in electronics industry – they are commonly used in data components, electromotive mechanisms, advanced medical instruments, as well as other advanced devices.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets: application proposals

They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also improves its resistance to damage
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. 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 recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
Limited ability of making threads in the magnet and complicated forms - preferred is cover - magnet mounting.
Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these products can disrupt the diagnostic process medical when they are in the body.
Due to complex production process, their price is relatively high,

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what contributes to it?

The force parameter is a theoretical maximum value performed under specific, ideal conditions:

on a block made of structural steel, perfectly concentrating the magnetic flux
possessing a thickness of minimum 10 mm to avoid saturation
characterized by smoothness
under conditions of no distance (surface-to-surface)
for force acting at a right angle (in the magnet axis)
at room temperature

Practical aspects of lifting capacity – factors

Holding efficiency is influenced by working environment parameters, such as (from priority):

Distance – existence of foreign body (rust, dirt, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
Angle of force application – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
Plate thickness – too thin sheet does not close the flux, causing part of the power to be wasted to the other side.
Metal type – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
Plate texture – ground elements ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity was measured by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets

Flammability

Powder generated during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

GPS Danger

An intense magnetic field interferes with the functioning of compasses in smartphones and navigation systems. Keep magnets near a smartphone to avoid breaking the sensors.

Life threat

People with a ICD must maintain an safe separation from magnets. The magnetic field can stop the operation of the life-saving device.

Do not give to children

Strictly store magnets away from children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are tragic.

Risk of cracking

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

Do not underestimate power

Exercise caution. Neodymium magnets act from a long distance and snap with massive power, often faster than you can move away.

Electronic devices

Do not bring magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.

Hand protection

Big blocks can break fingers instantly. Under no circumstances place your hand between two attracting surfaces.

Nickel allergy

Nickel alert: The nickel-copper-nickel coating contains nickel. If skin irritation appears, immediately stop handling magnets and use protective gear.

Power loss in heat

Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

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

MPL 20x8x4 / N38 - lamellar magnet

Physical properties - MPL 20x8x4 / N38 - lamellar magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the product - report

Table 1: Static force (force vs distance) - interaction chart MPL 20x8x4 / N38

Table 2: Shear hold (vertical surface) MPL 20x8x4 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MPL 20x8x4 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MPL 20x8x4 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold MPL 20x8x4 / N38

Table 6: Two magnets (attraction) - field collision MPL 20x8x4 / N38

Table 7: Hazards (implants) - warnings MPL 20x8x4 / N38

Table 8: Collisions (kinetic energy) - warning MPL 20x8x4 / N38

Table 9: Surface protection spec MPL 20x8x4 / N38

Table 10: Electrical data (Pc) MPL 20x8x4 / N38

Table 11: Underwater work (magnet fishing) MPL 20x8x4 / N38

1. Sliding resistance

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Ecology and recycling (GPSR)

Pulling force

Magnetic Induction

See also offers

UMS 48x18x8.5x11.5 / N38 - conical magnetic holder

MPL 50x50x25 / N38 - lamellar magnet

HH 32x7.8 [M5] / N38 - through hole magnetic holder

MW 3x1 / N38 - cylindrical magnet

Pros and cons of rare earth magnets.

Pros

Disadvantages

Lifting parameters

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Practical aspects of lifting capacity – factors

H&S for magnets

Flammability

GPS Danger

Life threat

Do not give to children

Risk of cracking

Do not underestimate power

Electronic devices

Hand protection

Nickel allergy

Power loss in heat

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - interaction chart
MPL 20x8x4 / N38

Table 2: Shear hold (vertical surface)
MPL 20x8x4 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MPL 20x8x4 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MPL 20x8x4 / N38

Table 5: Thermal resistance (material behavior) - resistance threshold
MPL 20x8x4 / N38

Table 6: Two magnets (attraction) - field collision
MPL 20x8x4 / N38

Table 7: Hazards (implants) - warnings
MPL 20x8x4 / N38

Table 8: Collisions (kinetic energy) - warning
MPL 20x8x4 / N38

Table 9: Surface protection spec
MPL 20x8x4 / N38

Table 10: Electrical data (P_c)
MPL 20x8x4 / N38

Table 11: Underwater work (magnet fishing)
MPL 20x8x4 / N38