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MW 45x30 / N38 - cylindrical 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

cylindrical magnet

Catalog no 010073

GTIN/EAN: 5906301810728

Diameter Ø

45 mm [±0,1 mm]

Height

30 mm [±0,1 mm]

Weight

357.85 g

Magnetization Direction

↑ axial

Load capacity

69.46 kg / 681.39 N

Magnetic Induction

495.87 mT / 4959 Gs

Coating

[NiCuNi] Nickel

check properties »

136.80 ZŁ with VAT / pcs + price for transport

111.22 ZŁ net + 23% VAT / pcs

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Detailed specification - MW 45x30 / N38 - cylindrical magnet

Specification / characteristics - MW 45x30 / N38 - cylindrical magnet

properties

properties	values
Cat. no.	010073
GTIN/EAN	5906301810728
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	45 mm [±0,1 mm]
Height	30 mm [±0,1 mm]
Weight	357.85 g
Magnetization Direction	↑ axial
Load capacity ~ ?	69.46 kg / 681.39 N
Magnetic Induction ~ ?	495.87 mT / 4959 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 45x30 / N38 - cylindrical 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 simulation of the magnet - data

These data constitute the outcome of a physical calculation. Results are based on algorithms for the material Nd₂Fe₁₄B. Operational parameters might slightly differ from theoretical values. Please consider these data as a preliminary roadmap for designers.

Table 1: Static force (force vs distance) - power drop
MW 45x30 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4958 Gs 495.8 mT	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N	crushing
1 mm	4742 Gs 474.2 mT	63.55 kg / 140.11 lbs 63553.9 g / 623.5 N	crushing
2 mm	4523 Gs 452.3 mT	57.81 kg / 127.44 lbs 57805.8 g / 567.1 N	crushing
3 mm	4303 Gs 430.3 mT	52.33 kg / 115.36 lbs 52327.7 g / 513.3 N	crushing
5 mm	3870 Gs 387.0 mT	42.33 kg / 93.32 lbs 42329.9 g / 415.3 N	crushing
10 mm	2886 Gs 288.6 mT	23.53 kg / 51.88 lbs 23531.8 g / 230.8 N	crushing
15 mm	2106 Gs 210.6 mT	12.54 kg / 27.64 lbs 12537.0 g / 123.0 N	crushing
20 mm	1535 Gs 153.5 mT	6.66 kg / 14.68 lbs 6657.1 g / 65.3 N	strong
30 mm	845 Gs 84.5 mT	2.02 kg / 4.45 lbs 2018.9 g / 19.8 N	strong
50 mm	315 Gs 31.5 mT	0.28 kg / 0.62 lbs 279.5 g / 2.7 N	low risk

Grip strength drops drastically per each millimeter of spacing. Keep in mind that even the smallest gap (e.g., dirt, paint, dust) noticeably diminishes the holding power. Neodymiums operate most effectively at the point of direct contact; air break kills the power. See how rapidly the pull force drop, when the magnet does not touch flatly to the metal substrate. When planning the assembly, discard additional spacers.

Table 2: Sliding hold (vertical surface)
MW 45x30 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	13.89 kg / 30.63 lbs 13892.0 g / 136.3 N
1 mm	Stal (~0.2)	12.71 kg / 28.02 lbs 12710.0 g / 124.7 N
2 mm	Stal (~0.2)	11.56 kg / 25.49 lbs 11562.0 g / 113.4 N
3 mm	Stal (~0.2)	10.47 kg / 23.07 lbs 10466.0 g / 102.7 N
5 mm	Stal (~0.2)	8.47 kg / 18.66 lbs 8466.0 g / 83.1 N
10 mm	Stal (~0.2)	4.71 kg / 10.37 lbs 4706.0 g / 46.2 N
15 mm	Stal (~0.2)	2.51 kg / 5.53 lbs 2508.0 g / 24.6 N
20 mm	Stal (~0.2)	1.33 kg / 2.94 lbs 1332.0 g / 13.1 N
30 mm	Stal (~0.2)	0.40 kg / 0.89 lbs 404.0 g / 4.0 N
50 mm	Stal (~0.2)	0.06 kg / 0.12 lbs 56.0 g / 0.5 N

The table below calculates the approximate holding capacity sufficient to cause the shifting of the magnet down on a upright steel plate (assuming standard friction coefficient). This parameter is relative to the distance between the magnet and the metal.

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 45x30 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	20.84 kg / 45.94 lbs 20838.0 g / 204.4 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	13.89 kg / 30.63 lbs 13892.0 g / 136.3 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	6.95 kg / 15.31 lbs 6946.0 g / 68.1 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	34.73 kg / 76.57 lbs 34730.0 g / 340.7 N

When mounting a holder on a upright surface (e.g., a fridge), it will only hold barely about 1/5 of its nominal power. Gravitational force as well as a weak degree of grip influence the fact that magnets slip faster than they pop off the substrate. Designing a hanger? Note that the shear force is significantly lower than the perpendicular breakaway force. On a slippery surface, the element will give way down under a significantly smaller weight. Application of an anti-slip coating can drastically increase the grip.

Table 4: Material efficiency (saturation) - sheet metal selection
MW 45x30 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	3%	2.32 kg / 5.10 lbs 2315.3 g / 22.7 N
1 mm	8%	5.79 kg / 12.76 lbs 5788.3 g / 56.8 N
2 mm	17%	11.58 kg / 25.52 lbs 11576.7 g / 113.6 N
3 mm	25%	17.37 kg / 38.28 lbs 17365.0 g / 170.4 N
5 mm	42%	28.94 kg / 63.81 lbs 28941.7 g / 283.9 N
10 mm	83%	57.88 kg / 127.61 lbs 57883.3 g / 567.8 N
11 mm	92%	63.67 kg / 140.37 lbs 63671.7 g / 624.6 N
12 mm	100%	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N

A thin metal plate is not enough to focus the entire magnetic field, which weakens actual performance of the holder. Should you mount a strong magnet to a weak sheet, the magnetism will pass right through and the attraction force will be weaker. To squeeze 100% of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation phenomenon causes that on delicate walls (e.g., car bodies), the product works worse. We advise picking the steel dimension from these parameters.

Table 5: Thermal stability (stability) - thermal limit
MW 45x30 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	69.46 kg / 153.13 lbs 69460.0 g / 681.4 N	OK
40 °C	-2.2%	67.93 kg / 149.76 lbs 67931.9 g / 666.4 N	OK
60 °C	-4.4%	66.40 kg / 146.40 lbs 66403.8 g / 651.4 N	OK
80 °C	-6.6%	64.88 kg / 143.03 lbs 64875.6 g / 636.4 N
100 °C	-28.8%	49.46 kg / 109.03 lbs 49455.5 g / 485.2 N

Standard neodymium magnets change their properties parameters above the temperature limit. Watch out for overheating – high temperature can irreversibly demagnetize this magnet. With every degree above norm, the neodymium's power momentarily decreases. Refrain from using this magnet near heat sources exceeding its working range. Too high temperature will cause destruction of magnetic properties.

*Engineering note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Flat magnets (low Pc) are more susceptible to demagnetization under lower heat stress than taller cylinders. The danger warning in the table indicates a risk of irreversible loss for this specific geometry.

Table 6: Two magnets (repulsion) - field range
MW 45x30 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Lateral Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	241.01 kg / 531.33 lbs 5 803 Gs	36.15 kg / 79.70 lbs 36151 g / 354.6 N	N/A
1 mm	230.79 kg / 508.80 lbs 9 703 Gs	34.62 kg / 76.32 lbs 34618 g / 339.6 N	207.71 kg / 457.92 lbs ~0 Gs
2 mm	220.52 kg / 486.16 lbs 9 485 Gs	33.08 kg / 72.92 lbs 33078 g / 324.5 N	198.47 kg / 437.54 lbs ~0 Gs
3 mm	210.44 kg / 463.94 lbs 9 265 Gs	31.57 kg / 69.59 lbs 31566 g / 309.7 N	189.39 kg / 417.54 lbs ~0 Gs
5 mm	190.94 kg / 420.95 lbs 8 826 Gs	28.64 kg / 63.14 lbs 28641 g / 281.0 N	171.85 kg / 378.86 lbs ~0 Gs
10 mm	146.87 kg / 323.80 lbs 7 741 Gs	22.03 kg / 48.57 lbs 22031 g / 216.1 N	132.19 kg / 291.42 lbs ~0 Gs
20 mm	81.65 kg / 180.01 lbs 5 771 Gs	12.25 kg / 27.00 lbs 12247 g / 120.1 N	73.48 kg / 162.01 lbs ~0 Gs
50 mm	12.52 kg / 27.60 lbs 2 260 Gs	1.88 kg / 4.14 lbs 1878 g / 18.4 N	11.27 kg / 24.84 lbs ~0 Gs
60 mm	7.01 kg / 15.44 lbs 1 690 Gs	1.05 kg / 2.32 lbs 1051 g / 10.3 N	6.30 kg / 13.90 lbs ~0 Gs
70 mm	4.06 kg / 8.95 lbs 1 287 Gs	0.61 kg / 1.34 lbs 609 g / 6.0 N	3.66 kg / 8.06 lbs ~0 Gs
80 mm	2.44 kg / 5.38 lbs 998 Gs	0.37 kg / 0.81 lbs 366 g / 3.6 N	2.20 kg / 4.84 lbs ~0 Gs
90 mm	1.51 kg / 3.34 lbs 786 Gs	0.23 kg / 0.50 lbs 227 g / 2.2 N	1.36 kg / 3.01 lbs ~0 Gs
100 mm	0.97 kg / 2.14 lbs 629 Gs	0.15 kg / 0.32 lbs 145 g / 1.4 N	0.87 kg / 1.92 lbs ~0 Gs

Two magnets attract each other from a wider radius than a magnet and sheet combination. The setup of two magnets generates a stronger field and a larger range of operation. Designing a powerful holder? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when bringing together two magnets, the pinch force is huge. The repulsion force is slightly lower than the attraction, but still impressive.
*The magnetic induction for N-N configuration drops to ~0 Gs at the geometric center between the magnets (caused by magnetic field nullification).
Attention: Results demonstrate sliding force of two identical magnets (friction ~0.15 for Ni-Ni layer).

Table 7: Hazards (implants) - precautionary measures
MW 45x30 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	25.5 cm
Hearing aid	10 Gs (1.0 mT)	20.0 cm
Mechanical watch	20 Gs (2.0 mT)	15.5 cm
Mobile device	40 Gs (4.0 mT)	12.0 cm
Remote	50 Gs (5.0 mT)	11.0 cm
Payment card	400 Gs (40.0 mT)	4.5 cm
HDD hard drive	600 Gs (60.0 mT)	4.0 cm

A strong magnetic field is a serious hazard to electronic devices as well as pacemakers. These magnets generate a flux that destroys function of sensitive medical devices. Remember: the unseen radiation passes through tissues and glass. Special caution must be exercised by people with cochlear implants and insulin pumps. Also at risk are: automatic timepieces, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (kinetic energy) - warning
MW 45x30 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	16.76 km/h (4.66 m/s)	3.88 J
30 mm	24.77 km/h (6.88 m/s)	8.47 J
50 mm	31.50 km/h (8.75 m/s)	13.70 J
100 mm	44.44 km/h (12.34 m/s)	27.26 J

NdFeB products are very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a magnet released freely becomes dangerous. Impact energy can cause material chips or painful pinches to fingers. Be sure to control the product during mounting so it doesn't hit violently against the metal. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear safety glasses when playing with large magnets.

Table 9: Coating parameters (durability)
MW 45x30 / 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. Note the thickness of the protective layer.

Table 10: Electrical data (P_c)
MW 45x30 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	79 446 Mx	794.5 µWb
P_c Coefficient	0.71	High (Stable)

Total magnetic flux emitted by the magnet pole. Key data for generator designers as well as sensors. P_c value defines the working geometry.

Table 11: Underwater work (magnet fishing)
MW 45x30 / N38

Environment	Effective steel pull	Effect
Air (land)	69.46 kg	Standard
Water (riverbed)	79.53 kg (+10.07 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. Vertical hold

*Caution: On a vertical surface, the magnet holds just ~20% of its max power.

2. Efficiency vs thickness

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

3. Temperature resistance

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

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

chart generated for the permeance coefficient P_c (Permeance Coefficient) = 0.71

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.

Engineering data and GPSR

Elemental analysis

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

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: 010073-2026

Measurement Calculator

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MPL 3x3x1 / N38 - lamellar magnet

0.1845 ZŁ brutto / pcs

The presented product is an incredibly powerful cylindrical magnet, made from advanced NdFeB material, which, at dimensions of Ø45x30 mm, guarantees maximum efficiency. This specific item is characterized by an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for professional engineers and designers. As a magnetic rod with significant force (approx. 69.46 kg), this product is in stock from our European logistics center, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, ensuring an aesthetic appearance and durability for years.

This model is created for building electric motors, advanced sensors, and efficient filters, where maximum induction on a small surface counts. Thanks to the high power of 681.39 N with a weight of only 357.85 g, this rod is indispensable in electronics and wherever low weight is crucial.

Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this professional component. To ensure long-term durability in industry, specialized industrial adhesives are used, which are safe for nickel and fill the gap, guaranteeing durability of the connection.

Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering a great economic balance and operational stability. If you need even stronger magnets in the same volume (Ø45x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard available off-the-shelf in our store.

This model is characterized by dimensions Ø45x30 mm, which, at a weight of 357.85 g, makes it an element with impressive magnetic energy density. The value of 681.39 N means that the magnet is capable of holding a weight many times exceeding its own mass of 357.85 g. The product has a [NiCuNi] coating, which protects the surface against external factors, giving it an aesthetic, silvery shine.

This cylinder is magnetized axially (along the height of 30 mm), which means that the N and S poles are located on the flat, circular surfaces. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Benefits

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

They retain attractive force for around 10 years – the loss is just ~1% (in theory),
They retain their magnetic properties even under strong external field,
A magnet with a shiny gold surface has an effective appearance,
They feature high magnetic induction at the operating surface, which increases their power,
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...
In view of the possibility of free molding and customization to custom needs, magnetic components can be created in a broad palette of geometric configurations, which increases their versatility,
Fundamental importance in innovative solutions – they serve a role in mass storage devices, brushless drives, diagnostic systems, as well as modern systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in small systems

Cons

Problematic aspects of neodymium magnets: tips and applications.

At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's 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 durability even at temperatures up to 230°C
Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of creating threads in the magnet and complex forms - preferred is casing - magnetic holder.
Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical when they are in the body.
With mass production the cost of neodymium magnets is economically unviable,

Holding force characteristics

Maximum magnetic pulling force – what affects it?

The specified lifting capacity represents the peak performance, measured under optimal environment, specifically:

using a base made of mild steel, serving as a ideal flux conductor
possessing a massiveness of at least 10 mm to avoid saturation
with a surface free of scratches
with total lack of distance (without impurities)
during detachment in a direction vertical to the mounting surface
in neutral thermal conditions

Magnet lifting force in use – key factors

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

Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
Angle of force application – maximum parameter is available only during perpendicular pulling. The shear force of the magnet along the plate is standardly many times lower (approx. 1/5 of the lifting capacity).
Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
Plate material – mild steel attracts best. Alloy admixtures reduce magnetic properties and lifting capacity.
Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

Safe handling of NdFeB magnets

Avoid contact if allergic

Certain individuals suffer from a sensitization to Ni, which is the standard coating for NdFeB magnets. Extended handling may cause dermatitis. We strongly advise wear protective gloves.

Pinching danger

Danger of trauma: The pulling power is so great that it can cause blood blisters, pinching, and even bone fractures. Use thick gloves.

Safe distance

Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (pacemakers, hearing aids, timepieces).

Permanent damage

Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.

Shattering risk

Watch out for shards. Magnets can fracture upon violent connection, launching shards into the air. Eye protection is mandatory.

Medical implants

Life threat: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.

Powerful field

Use magnets consciously. Their huge power can surprise even professionals. Plan your moves and do not underestimate their force.

Keep away from electronics

An intense magnetic field disrupts the operation of magnetometers in phones and GPS navigation. Do not bring magnets near a smartphone to avoid damaging the sensors.

This is not a toy

Neodymium magnets are not intended for children. Swallowing multiple magnets can lead to them pinching intestinal walls, which poses a severe health hazard and requires urgent medical intervention.

Machining danger

Dust created during machining of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.

Caution! Looking for details? Read our article: Are neodymium magnets dangerous?

MW 45x30 / N38 - cylindrical magnet

Detailed specification - MW 45x30 / N38 - cylindrical magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical simulation of the magnet - data

Table 1: Static force (force vs distance) - power drop MW 45x30 / N38

Table 2: Sliding hold (vertical surface) MW 45x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces MW 45x30 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MW 45x30 / N38

Table 5: Thermal stability (stability) - thermal limit MW 45x30 / N38

Table 6: Two magnets (repulsion) - field range MW 45x30 / N38

Table 7: Hazards (implants) - precautionary measures MW 45x30 / N38

Table 8: Impact energy (kinetic energy) - warning MW 45x30 / N38

Table 9: Coating parameters (durability) MW 45x30 / N38

Table 10: Electrical data (Pc) MW 45x30 / N38

Table 11: Underwater work (magnet fishing) MW 45x30 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Temperature resistance

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

Elemental analysis

Sustainability

Force (pull)

Magnetic Induction

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MW 16x9 / N38 - cylindrical magnet

MW 12x50 / N38 - cylindrical magnet

MW 35x5 / N38 - cylindrical magnet

MPL 3x3x1 / N38 - lamellar magnet

Strengths as well as weaknesses of Nd2Fe14B magnets.

Benefits

Cons

Holding force characteristics

Maximum magnetic pulling force – what affects it?

Magnet lifting force in use – key factors

Safe handling of NdFeB magnets

Avoid contact if allergic

Pinching danger

Safe distance

Permanent damage

Shattering risk

Medical implants

Powerful field

Keep away from electronics

This is not a toy

Machining danger

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs distance) - power drop
MW 45x30 / N38

Table 2: Sliding hold (vertical surface)
MW 45x30 / N38

Table 3: Vertical assembly (sliding) - behavior on slippery surfaces
MW 45x30 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MW 45x30 / N38

Table 5: Thermal stability (stability) - thermal limit
MW 45x30 / N38

Table 6: Two magnets (repulsion) - field range
MW 45x30 / N38

Table 7: Hazards (implants) - precautionary measures
MW 45x30 / N38

Table 8: Impact energy (kinetic energy) - warning
MW 45x30 / N38

Table 9: Coating parameters (durability)
MW 45x30 / N38

Table 10: Electrical data (P_c)
MW 45x30 / N38

Table 11: Underwater work (magnet fishing)
MW 45x30 / N38

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.