Product available Ships today (order by 14:00)

MP 60x20x5 / N38 - ring 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

ring magnet

Catalog no 030204

GTIN/EAN: 5906301812210

5.00

Load capacity 9.41 kg / 92.27 N Magnetic Induction 101.92 mT / 1019 Gs

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
Coating: [NiCuNi] Nickel

How we measure these parameters — certificates and measurements

view properties »

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Frequently asked questions

What is the hole in a ring magnet for?

For mounting on a screw or a shaft. The bore may be cylindrical or countersunk for a screw head. The hole removes magnet volume, so a ring holds less than a disc of the same outside diameter.

What is the polarisation?

Axial as standard — poles on the flat faces of the ring. Diametrical polarisation is made to order.

What sizes are available?

Outside diameter from 5 to 62 mm from stock. To order up to 200 mm outside diameter, 180 mm bore and 40 mm height, with a lead time of 25–35 days.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

Order by 14:00 and we’ll ship today!

Detailed specification - 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
Remanence Br ?	12.2-12.6	kGs
Remanence Br ?	1220-1260	mT
Coercivity bHc ?	10.8-11.5	kOe
Coercivity bHc ?	860-915	kA/m
Intrinsic coercivity iHc	≥ 12	kOe
Intrinsic coercivity iHc	≥ 955	kA/m
Energy product BHmax ?	36-38	BH max MGOe
Energy product BHmax ?	287-303	BH max KJ/m
Maximum working 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	310	°C
Curie Temperature TF	590	°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 assembly - technical parameters

The following values constitute the result of a mathematical analysis. Values were calculated on algorithms for the material Nd₂Fe₁₄B. Actual conditions might slightly differ from theoretical values. Use these calculations as a reference point when designing systems.

Table 1: Static force (pull vs gap) - power drop
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	strong
1 mm	4400 Gs 440.0 mT	8.83 kg / 19.47 LBS 8832.4 g / 86.6 N	strong
2 mm	4254 Gs 425.4 mT	8.26 kg / 18.21 LBS 8258.2 g / 81.0 N	strong
3 mm	4107 Gs 410.7 mT	7.70 kg / 16.97 LBS 7697.5 g / 75.5 N	strong
5 mm	3812 Gs 381.2 mT	6.63 kg / 14.62 LBS 6630.0 g / 65.0 N	strong
10 mm	3097 Gs 309.7 mT	4.38 kg / 9.65 LBS 4375.1 g / 42.9 N	strong
15 mm	2463 Gs 246.3 mT	2.77 kg / 6.10 LBS 2767.8 g / 27.2 N	strong
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 weakens sharply with every mm of distance. Note that even a microscopic distance (e.g., contamination, paint, veneer) strongly diminishes the holding power. Magnets operate most effectively at the point of direct contact; distance kills the power. Analyze how flashily the pull force fall, when the product does not touch flatly to the steel surface. When planning the mounting, avoid redundant distances.

Table 2: Sliding capacity (vertical surface)
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 indicates the estimated shear load sufficient to start the shifting of the magnet downwards on a vertical steel wall (considering typical friction coefficient). This value is relative to 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 plane (e.g., a car body), it will only hold only about 20%-30% of nominal attraction strength. Gravity as well as a low friction coefficient cause that holders move down faster than they pop off the substrate. Designing a vertical fastening? Consider that the sliding force is noticeably lower than the perpendicular breakaway force. On a smooth steel, the magnet will slide down under a significantly smaller cargo. Utilizing a rubberized layer can effectively improve the result.

Table 4: Material efficiency (saturation) - sheet metal selection
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 is unable to focus the entire magnetic field, which weakens actual performance of the magnet. If you attach a powerful product to a thin surface, the field will penetrate right through and the pull force will drop sharply. To squeeze full efficiency of this magnet's potential, you require a sufficiently solid element of metal. The material oversaturation causes that on delicate walls (e.g., appliance housings), the product holds weaker. We recommend selecting the steel dimension from these parameters.

Table 5: Thermal stability (stability) - 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

Classic neodymiums change their properties strength past the thermal threshold. Avoid high temperatures – excessive heat can permanently demagnetize this product. With every degree above norm, the neodymium's capacity briefly decreases. Avoid using this product close to ovens higher than its working range. Exceeding the critical threshold will lead to destruction of magnetic properties.

*Important note: Heat tolerance is determined by both grade, but also on the magnet's shape. Flat magnets (low permeance coefficient) risk losing magnetic properties under lower heat stress than long magnets. Red status in the table indicates permanent field degradation for this particular item.

Table 6: Two magnets (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 magnetic products interact from a significantly greater distance than a magnet and sheet setup. Such a system of two magnets generates a stronger field and a larger range of action. Want to build a strong closure? Utilize two neodymiums instead of a neodymium and a striker plate. Be careful that when connecting a pair of magnets, the collision energy is massive. The levitation is a bit weaker than the connection force, but still significant.
*Flux density for N-N configuration drops to ~0 Gs in the exact middle of the gap (caused by magnetic field nullification).
* Results show sliding force of two matching magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Protective zones (implants) - 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
Mobile device	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

Powerful magnet radiation poses a serious hazard to IT equipment as well as medical implants. These magnets produce a flux that destroys function of sensitive medical devices. Remember: the invisible magnetic field passes through tissues and glass. Increased vigilance must be exercised by people with cochlear implants and insulin pumps. Influence will be felt by: mechanical watches, remotes, membranes, and displays. Avoid contact with magnetic cards, HDD media, or precise measuring instruments.

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

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	13.47 km/h (3.74 m/s)	0.66 J
30 mm	16.98 km/h (4.72 m/s)	1.05 J
50 mm	17.46 km/h (4.85 m/s)	1.11 J
100 mm	17.58 km/h (4.88 m/s)	1.12 J

Magnetic elements are prone to chipping – a strong collision with metal can result in shattering. Control the attraction moment – a magnet released freely becomes dangerous. Kinetic force can destroy the magnet or injury to fingers. Hold the magnet firmly during mounting so it doesn't hit violently against the steel surface. A collision at high speed means shattering of the neodymium. Wear eye protection when working with large magnets.

Table 9: Coating parameters (durability)
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)

For outdoor applications, an epoxy coating is required; standard nickel is intended for indoor use. Note the thickness of the protective layer.

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

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

Flux value passing through the magnet pole. Essential parameter in coil applications as well as sensors. P_c value defines the working geometry.

Table 11: Underwater work (magnet fishing)
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: This magnet has a standard nickel coating. After use in water, it must be dried and maintained immediately, otherwise it will rust!

Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Vertical hold

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

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) significantly reduces the holding force.

3. Thermal stability

*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) = 0.62

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%

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: 030204-2026

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The ring-shaped magnet MP 60x20x5 / N38 is created for permanent mounting, where glue might fail or be insufficient. Thanks to the hole (often for a screw), this model enables quick installation to wood, wall, plastic, or metal. This product with a force of 9.41 kg works great as a cabinet closure, speaker holder, or mounting element in devices.

This is a crucial issue when working with model MP 60x20x5 / N38. Neodymium magnets are sintered ceramics, which means they are very brittle and inelastic. One turn too many can destroy the magnet, so do it slowly. The flat screw head should evenly press the magnet. 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 easily scratched when tightening the screw, which will become a corrosion focus. This product is dedicated for inside building use. For outdoor applications, we recommend choosing magnets in hermetic housing or additional protection with varnish.

The inner hole diameter determines the maximum size of the mounting element. If the magnet does not have a chamfer (cone), we recommend using a screw with a flat or cylindrical head, or possibly using a washer. Aesthetic mounting requires selecting the appropriate head size.

This model is characterized by dimensions Ø60x5 mm and a weight of 94.25 g. The pulling force of this model is an impressive 9.41 kg, which translates to 92.27 N in newtons. The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 20 mm.

These magnets are magnetized axially (through the thickness), which means one flat side is the N pole and the other is S. 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). We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Pros and cons of Nd₂Fe₁₄B magnets.

Advantages

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

They have constant strength, and over nearly 10 years their attraction force decreases symbolically – ~1% (in testing),
They possess excellent resistance to magnetism drop as a result of opposing magnetic fields,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
The surface of neodymium magnets generates a powerful magnetic field – this is a key feature,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to versatility in forming and the capacity to adapt to client solutions,
Huge importance in electronics industry – they find application in mass storage devices, drive modules, precision medical tools, as well as multitasking production systems.
Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Cons

Disadvantages of NdFeB magnets:

At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
We suggest casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated shapes.
Health risk resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small elements of these products can complicate diagnosis medical after entering the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Maximum holding power of the magnet – what affects it?

Magnet power was defined for optimal configuration, assuming:

on a plate made of structural steel, perfectly concentrating the magnetic field
whose transverse dimension equals approx. 10 mm
characterized by smoothness
without the slightest insulating layer between the magnet and steel
under vertical force direction (90-degree angle)
in neutral thermal conditions

Lifting capacity in real conditions – factors

Real force impacted by specific conditions, mainly (from most important):

Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Plate material – low-carbon steel gives the best results. Higher carbon content lower magnetic permeability and lifting capacity.
Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
Heat – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet and the plate reduces the lifting capacity.

H&S for magnets

Keep away from electronics

GPS units and smartphones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Do not underestimate power

Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Nickel coating and allergies

Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and wear gloves.

Electronic devices

Very strong magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.

Demagnetization risk

Do not overheat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Do not give to children

Absolutely store magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are tragic.

Risk of cracking

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets leads to them breaking into small pieces.

Finger safety

Mind your fingers. Two powerful magnets will join immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Dust is flammable

Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.

Medical interference

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

Warning! More info about risks in the article: Magnet Safety Guide.

MP 60x20x5 / N38 - ring magnet

Detailed specification - MP 60x20x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical modeling of the assembly - technical parameters

Table 1: Static force (pull vs gap) - power drop MP 60x20x5 / N38

Table 2: Sliding capacity (vertical surface) MP 60x20x5 / N38

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

Table 4: Material efficiency (saturation) - sheet metal selection MP 60x20x5 / N38

Table 5: Thermal stability (stability) - power drop MP 60x20x5 / N38

Table 6: Two magnets (repulsion) - field collision MP 60x20x5 / N38

Table 7: Protective zones (implants) - precautionary measures MP 60x20x5 / N38

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

Table 9: Coating parameters (durability) MP 60x20x5 / N38

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

Table 11: Underwater work (magnet fishing) MP 60x20x5 / N38

1. Vertical hold

2. Steel thickness impact

3. Thermal stability

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

Elemental analysis

Environmental data

Pulling force

Field Strength

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Pros and cons of Nd2Fe14B magnets.

Advantages

Cons

Lifting parameters

Maximum holding power of the magnet – what affects it?

Lifting capacity in real conditions – factors

H&S for magnets

Keep away from electronics

Do not underestimate power

Nickel coating and allergies

Electronic devices

Demagnetization risk

Do not give to children

Risk of cracking

Finger safety

Dust is flammable

Medical interference

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs gap) - power drop
MP 60x20x5 / N38

Table 2: Sliding capacity (vertical surface)
MP 60x20x5 / N38

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

Table 4: Material efficiency (saturation) - sheet metal selection
MP 60x20x5 / N38

Table 5: Thermal stability (stability) - power drop
MP 60x20x5 / N38

Table 6: Two magnets (repulsion) - field collision
MP 60x20x5 / N38

Table 7: Protective zones (implants) - precautionary measures
MP 60x20x5 / N38

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

Table 9: Coating parameters (durability)
MP 60x20x5 / N38

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

Table 11: Underwater work (magnet fishing)
MP 60x20x5 / N38

Pros and cons of Nd₂Fe₁₄B magnets.