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MP 60x20x5 / N38 - ring 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

ring magnet

Catalog no 030204

GTIN/EAN: 5906301812210

5.00

Diameter

60 mm [±0,1 mm]

internal diameter Ø

20 mm [±0,1 mm]

Height

5 mm [±0,1 mm]

Weight

94.25 g

Magnetization Direction

↑ axial

Load capacity

9.41 kg / 92.27 N

Magnetic Induction

101.92 mT / 1019 Gs

Coating

[NiCuNi] Nickel

see technical data »

47.99 ZŁ with VAT / pcs + price for transport

39.02 ZŁ net + 23% VAT / pcs

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Technical - MP 60x20x5 / N38 - ring magnet

Specification / characteristics - MP 60x20x5 / N38 - ring magnet

properties

properties	values
Cat. no.	030204
GTIN/EAN	5906301812210
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	60 mm [±0,1 mm]
internal diameter Ø	20 mm [±0,1 mm]
Height	5 mm [±0,1 mm]
Weight	94.25 g
Magnetization Direction	↑ axial
Load capacity ~ ?	9.41 kg / 92.27 N
Magnetic Induction ~ ?	101.92 mT / 1019 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 60x20x5 / N38 - ring 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

The following information constitute the outcome of a mathematical simulation. Results rely on algorithms for the class Nd₂Fe₁₄B. Real-world parameters may differ. Use these data as a reference point when designing systems.

Table 1: Static force (force vs gap) - interaction chart
MP 60x20x5 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	4541 Gs 454.1 mT	9.41 kg / 20.75 LBS 9410.0 g / 92.3 N	medium risk
1 mm	4400 Gs 440.0 mT	8.83 kg / 19.47 LBS 8832.4 g / 86.6 N	medium risk
2 mm	4254 Gs 425.4 mT	8.26 kg / 18.21 LBS 8258.2 g / 81.0 N	medium risk
3 mm	4107 Gs 410.7 mT	7.70 kg / 16.97 LBS 7697.5 g / 75.5 N	medium risk
5 mm	3812 Gs 381.2 mT	6.63 kg / 14.62 LBS 6630.0 g / 65.0 N	medium risk
10 mm	3097 Gs 309.7 mT	4.38 kg / 9.65 LBS 4375.1 g / 42.9 N	medium risk
15 mm	2463 Gs 246.3 mT	2.77 kg / 6.10 LBS 2767.8 g / 27.2 N	medium risk
20 mm	1939 Gs 193.9 mT	1.72 kg / 3.78 LBS 1715.2 g / 16.8 N	safe
30 mm	1202 Gs 120.2 mT	0.66 kg / 1.45 LBS 659.2 g / 6.5 N	safe
50 mm	509 Gs 50.9 mT	0.12 kg / 0.26 LBS 118.0 g / 1.2 N	safe

Pulling power drops significantly per each millimeter of gap. Remember that even the smallest gap (e.g., contamination, paint, rust) significantly reduces the pull force. Magnetic products hold optimally at the point of direct contact; distance weakens the force. Notice how flashily the load capacity drop, when the product does not adhere tightly to the metal substrate. When designing the mounting, discard redundant distances.

Table 2: Sliding load (wall)
MP 60x20x5 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	1.88 kg / 4.15 LBS 1882.0 g / 18.5 N
1 mm	Stal (~0.2)	1.77 kg / 3.89 LBS 1766.0 g / 17.3 N
2 mm	Stal (~0.2)	1.65 kg / 3.64 LBS 1652.0 g / 16.2 N
3 mm	Stal (~0.2)	1.54 kg / 3.40 LBS 1540.0 g / 15.1 N
5 mm	Stal (~0.2)	1.33 kg / 2.92 LBS 1326.0 g / 13.0 N
10 mm	Stal (~0.2)	0.88 kg / 1.93 LBS 876.0 g / 8.6 N
15 mm	Stal (~0.2)	0.55 kg / 1.22 LBS 554.0 g / 5.4 N
20 mm	Stal (~0.2)	0.34 kg / 0.76 LBS 344.0 g / 3.4 N
30 mm	Stal (~0.2)	0.13 kg / 0.29 LBS 132.0 g / 1.3 N
50 mm	Stal (~0.2)	0.02 kg / 0.05 LBS 24.0 g / 0.2 N

The following data defines the estimated shear load required to cause the sliding of the magnet downwards against a upright steel wall (considering typical friction). This value is a function of the separation distance between the magnet and the surface.

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 60x20x5 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	2.82 kg / 6.22 LBS 2823.0 g / 27.7 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	1.88 kg / 4.15 LBS 1882.0 g / 18.5 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	0.94 kg / 2.07 LBS 941.0 g / 9.2 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	4.71 kg / 10.37 LBS 4705.0 g / 46.2 N

When placing a magnet on a vertical surface (e.g., a board), it you can count on only approx. 20%-30% of its nominal power. Gravity and a weak degree of grip influence the fact that holders slip faster than they pull off. Planning a vertical fastening? Note that the shear force is much weaker than the perpendicular breakaway force. On a smooth steel, the element will slide down under a noticeably lighter weight. Using a rubber coating can significantly increase the grip.

Table 4: Steel thickness (substrate influence) - power losses
MP 60x20x5 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	10%	0.94 kg / 2.07 LBS 941.0 g / 9.2 N
1 mm	25%	2.35 kg / 5.19 LBS 2352.5 g / 23.1 N
2 mm	50%	4.71 kg / 10.37 LBS 4705.0 g / 46.2 N
3 mm	75%	7.06 kg / 15.56 LBS 7057.5 g / 69.2 N
5 mm	100%	9.41 kg / 20.75 LBS 9410.0 g / 92.3 N
10 mm	100%	9.41 kg / 20.75 LBS 9410.0 g / 92.3 N
11 mm	100%	9.41 kg / 20.75 LBS 9410.0 g / 92.3 N
12 mm	100%	9.41 kg / 20.75 LBS 9410.0 g / 92.3 N

A thin metal plate cannot absorb the entire magnetic field, which squanders power of the magnet. If you attach a powerful product to a weak sheet, the magnetism will penetrate right through and the holding will be smaller. To achieve full efficiency of this neodymium's potential, you require a sufficiently solid element of metal. The saturation effect causes that on thin elements (e.g., car bodies), the holder shows lower pull force. We suggest choosing the steel cross-section from these parameters.

Table 5: Working in heat (material behavior) - power drop
MP 60x20x5 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	9.41 kg / 20.75 LBS 9410.0 g / 92.3 N	OK
40 °C	-2.2%	9.20 kg / 20.29 LBS 9203.0 g / 90.3 N	OK
60 °C	-4.4%	9.00 kg / 19.83 LBS 8996.0 g / 88.3 N	OK
80 °C	-6.6%	8.79 kg / 19.38 LBS 8788.9 g / 86.2 N
100 °C	-28.8%	6.70 kg / 14.77 LBS 6699.9 g / 65.7 N

Standard neodymium magnets change their properties strength above the temperature limit. Watch out for overheating – heat can permanently demagnetize this magnet. With increasing heat, the magnet's force momentarily decreases. Do not use this product near heat sources exceeding its safe range. Ignoring the limit will result in irreversible degradation of magnetic properties.

*Important note: Heat tolerance is determined by both grade, as well as the dimension ratios. Thin magnets (pancake types) risk losing magnetic properties under lower heat stress compared to rod magnets. Red status in the table points to permanent field degradation for this particular item.

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MP 60x20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Strength (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	303.46 kg / 669.01 LBS 5 621 Gs	45.52 kg / 100.35 LBS 45519 g / 446.5 N	N/A
1 mm	294.21 kg / 648.62 LBS 8 943 Gs	44.13 kg / 97.29 LBS 44132 g / 432.9 N	264.79 kg / 583.76 LBS ~0 Gs
2 mm	284.83 kg / 627.94 LBS 8 800 Gs	42.72 kg / 94.19 LBS 42725 g / 419.1 N	256.35 kg / 565.15 LBS ~0 Gs
3 mm	275.53 kg / 607.43 LBS 8 655 Gs	41.33 kg / 91.11 LBS 41329 g / 405.4 N	247.97 kg / 546.69 LBS ~0 Gs
5 mm	257.21 kg / 567.06 LBS 8 362 Gs	38.58 kg / 85.06 LBS 38582 g / 378.5 N	231.49 kg / 510.35 LBS ~0 Gs
10 mm	213.81 kg / 471.36 LBS 7 624 Gs	32.07 kg / 70.70 LBS 32071 g / 314.6 N	192.43 kg / 424.23 LBS ~0 Gs
20 mm	141.09 kg / 311.05 LBS 6 193 Gs	21.16 kg / 46.66 LBS 21164 g / 207.6 N	126.98 kg / 279.95 LBS ~0 Gs
50 mm	34.15 kg / 75.30 LBS 3 047 Gs	5.12 kg / 11.29 LBS 5123 g / 50.3 N	30.74 kg / 67.77 LBS ~0 Gs
60 mm	21.26 kg / 46.87 LBS 2 404 Gs	3.19 kg / 7.03 LBS 3189 g / 31.3 N	19.13 kg / 42.18 LBS ~0 Gs
70 mm	13.43 kg / 29.61 LBS 1 911 Gs	2.01 kg / 4.44 LBS 2015 g / 19.8 N	12.09 kg / 26.65 LBS ~0 Gs
80 mm	8.65 kg / 19.06 LBS 1 533 Gs	1.30 kg / 2.86 LBS 1297 g / 12.7 N	7.78 kg / 17.16 LBS ~0 Gs
90 mm	5.68 kg / 12.52 LBS 1 243 Gs	0.85 kg / 1.88 LBS 852 g / 8.4 N	5.11 kg / 11.27 LBS ~0 Gs
100 mm	3.81 kg / 8.39 LBS 1 017 Gs	0.57 kg / 1.26 LBS 571 g / 5.6 N	3.43 kg / 7.55 LBS ~0 Gs

Two magnets attract each other from a much further distance than a magnet and steel combination. The connection of magnet-to-magnet produces a massive flux and a further horizon of operation. Want to build a solid fastener? Use a pair of magnets instead of a neodymium and a steel. Exercise caution that when connecting a pair of magnets, the collision energy is massive. The levitation is marginally weaker than the connection force, but still significant.
*Field value in repulsion mode reaches ~0 Gs in the exact middle of the gap (resulting from vector opposition).
Important: Calculations demonstrate sliding force of two matching neodymium magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Hazards (electronics) - precautionary measures
MP 60x20x5 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	31.5 cm
Hearing aid	10 Gs (1.0 mT)	24.5 cm
Timepiece	20 Gs (2.0 mT)	19.5 cm
Phone / Smartphone	40 Gs (4.0 mT)	15.0 cm
Remote	50 Gs (5.0 mT)	14.0 cm
Payment card	400 Gs (40.0 mT)	6.0 cm
HDD hard drive	600 Gs (60.0 mT)	5.0 cm

A strong magnetic field is a serious hazard to IT equipment as well as medical implants. These magnets produce a flux that disrupts operation of digital equipment. Notice: the invisible magnetic field passes through tissues and housings. Exceptional care must be exercised by people with cochlear implants and drug dispensers. The risk also applies to: mechanical watches, car keys, speakers, and screens. Do not bring the product near payment cards, HDD media, or precise measuring instruments.

Table 8: Collisions (kinetic energy) - collision effects
MP 60x20x5 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	12.67 km/h (3.52 m/s)	0.58 J
30 mm	18.20 km/h (5.06 m/s)	1.20 J
50 mm	22.71 km/h (6.31 m/s)	1.88 J
100 mm	31.88 km/h (8.85 m/s)	3.70 J

Neodymium magnets are very brittle – a strong collision with metal can result in shattering. Watch the impact speed – a neodymium left loose becomes dangerous. Striking energy can cause material chips or dangerous crushing to skin. Always hold the magnet during installation so it doesn't hit with great force against the steel surface. A collision at high speed means shattering of the neodymium. Wear safety glasses when handling with large magnets.

Table 9: Surface protection spec
MP 60x20x5 / 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 following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Construction data (P_c)
MP 60x20x5 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	109 640 Mx	1096.4 µWb
P_c Coefficient	0.62	High (Stable)

Total magnetic flux emitted by the magnet pole. Essential parameter in coil applications as well as sensors. P_c value defines the magnet's operating point.

Table 11: Physics of underwater searching
MP 60x20x5 / N38

Environment	Effective steel pull	Effect
Air (land)	9.41 kg	Standard
Water (riverbed)	10.77 kg (+1.36 kg buoyancy gain)	+14.5%

Warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.

Contrary to myths, water does not block the magnetic field. Buoyancy helps in lifting finds.

1. Vertical hold

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

2. Steel saturation

*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) = 0.62

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

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%

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: 030204-2026

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MP 5x1.5x3 / N38 - ring magnet

0.344 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 15x10 / N38 - cylindrical magnet

4.51 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

HH 20x7.2 [M4] / N38 - through hole magnetic holder

6.40 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MW 15x8 / N38 - cylindrical magnet

4.92 ZŁ brutto / pcs

It is ideally suited for places where solid attachment of the magnet to the substrate is required without the risk of detachment. Mounting is clean and reversible, unlike gluing. This product with a force of 9.41 kg works great as a cabinet closure, speaker holder, or spacer element in devices.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. When tightening the screw, you must maintain caution. We recommend tightening manually with a screwdriver, not an impact driver, because excessive force will cause the ring to crack. It's a good idea to use a flexible washer under the screw head, which will cushion the stresses. Remember: cracking during assembly results from material properties, not a product defect.

These magnets are coated with standard Ni-Cu-Ni plating, which protects them in indoor conditions, but does not ensure full waterproofing. In the place of the mounting hole, the coating is thinner and can be damaged when tightening the screw, which will become a corrosion focus. This product is dedicated for indoor use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

A screw or bolt with a thread diameter smaller than 20 mm fits this model. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Aesthetic mounting requires selecting the appropriate head size.

This model is characterized by dimensions Ø60x5 mm and a weight of 94.25 g. The key parameter here is the lifting capacity amounting to approximately 9.41 kg (force ~92.27 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 20 mm.

The poles are located on the planes with holes, not on the sides of the ring. If you want two such magnets screwed with cones facing each other (faces) to attract, you must connect them with opposite poles (N to S). When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Pros as well as cons of Nd₂Fe₁₄B magnets.

Advantages

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

Their power is maintained, and after around 10 years it drops only by ~1% (according to research),
They do not lose their magnetic properties even under external field action,
Thanks to the reflective finish, the coating of nickel, gold-plated, or silver gives an aesthetic appearance,
Magnets exhibit exceptionally strong magnetic induction on the active area,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
Thanks to versatility in shaping and the capacity to customize to individual projects,
Versatile presence in modern industrial fields – they serve a role in mass storage devices, electric drive systems, medical equipment, also complex engineering applications.
Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Cons

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
Neodymium magnets demagnetize 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 extremely resistant to heat
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited ability of making threads in the magnet and complicated forms - recommended is casing - magnet mounting.
Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these devices are able to complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Maximum holding power of the magnet – what affects it?

Breakaway force was defined for optimal configuration, including:

using a plate made of low-carbon steel, acting as a ideal flux conductor
whose thickness reaches at least 10 mm
characterized by smoothness
without any air gap between the magnet and steel
under perpendicular force vector (90-degree angle)
in neutral thermal conditions

Lifting capacity in real conditions – factors

In real-world applications, the actual holding force is determined by many variables, presented from most significant:

Gap (betwixt the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
Steel type – low-carbon steel gives the best results. Alloy admixtures lower magnetic permeability and holding force.
Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet and the plate lowers the holding force.

Safety rules for work with neodymium magnets

Avoid contact if allergic

A percentage of the population experience a contact allergy to nickel, which is the common plating for neodymium magnets. Prolonged contact may cause an allergic reaction. We suggest wear safety gloves.

GPS and phone interference

Note: rare earth magnets generate a field that interferes with precision electronics. Maintain a safe distance from your phone, device, and navigation systems.

Operating temperature

Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. This process is irreversible.

Crushing force

Big blocks can crush fingers in a fraction of a second. Never put your hand between two strong magnets.

Warning for heart patients

Patients with a heart stimulator have to keep an absolute distance from magnets. The magnetism can interfere with the functioning of the life-saving device.

Flammability

Powder created during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.

Threat to electronics

Equipment safety: Strong magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).

No play value

Only for adults. Tiny parts can be swallowed, leading to severe trauma. Store away from kids and pets.

Respect the power

Use magnets consciously. Their powerful strength can shock even professionals. Plan your moves and respect their force.

Magnet fragility

Despite the nickel coating, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Caution! More info about hazards in the article: Magnet Safety Guide.

MP 60x20x5 / N38 - ring magnet

Technical - MP 60x20x5 / N38 - ring 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 force (force vs gap) - interaction chart MP 60x20x5 / N38

Table 2: Sliding load (wall) MP 60x20x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces MP 60x20x5 / N38

Table 4: Steel thickness (substrate influence) - power losses MP 60x20x5 / N38

Table 5: Working in heat (material behavior) - power drop MP 60x20x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision MP 60x20x5 / N38

Table 7: Hazards (electronics) - precautionary measures MP 60x20x5 / N38

Table 8: Collisions (kinetic energy) - collision effects MP 60x20x5 / N38

Table 9: Surface protection spec MP 60x20x5 / N38

Table 10: Construction data (Pc) MP 60x20x5 / N38

Table 11: Physics of underwater searching MP 60x20x5 / N38

1. Vertical hold

2. Steel saturation

3. Power loss vs temp

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

Chemical composition

Sustainability

Magnet pull force

Field Strength

See also products

MP 5x1.5x3 / N38 - ring magnet

MW 15x10 / N38 - cylindrical magnet

HH 20x7.2 [M4] / N38 - through hole magnetic holder

MW 15x8 / N38 - cylindrical magnet

Pros as well as cons of Nd2Fe14B magnets.

Advantages

Cons

Pull force analysis

Maximum holding power of the magnet – what affects it?

Lifting capacity in real conditions – factors

Safety rules for work with neodymium magnets

Avoid contact if allergic

GPS and phone interference

Operating temperature

Crushing force

Warning for heart patients

Flammability

Threat to electronics

No play value

Respect the power

Magnet fragility

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (force vs gap) - interaction chart
MP 60x20x5 / N38

Table 2: Sliding load (wall)
MP 60x20x5 / N38

Table 3: Vertical assembly (shearing) - behavior on slippery surfaces
MP 60x20x5 / N38

Table 4: Steel thickness (substrate influence) - power losses
MP 60x20x5 / N38

Table 5: Working in heat (material behavior) - power drop
MP 60x20x5 / N38

Table 6: Magnet-Magnet interaction (repulsion) - field collision
MP 60x20x5 / N38

Table 7: Hazards (electronics) - precautionary measures
MP 60x20x5 / N38

Table 8: Collisions (kinetic energy) - collision effects
MP 60x20x5 / N38

Table 9: Surface protection spec
MP 60x20x5 / N38

Table 10: Construction data (P_c)
MP 60x20x5 / N38

Table 11: Physics of underwater searching
MP 60x20x5 / N38

Pros as well as cons of Nd₂Fe₁₄B magnets.