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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

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47.99 ZŁ with VAT / pcs + price for transport

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Physical properties - 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 modeling of the magnet - data

Presented values are the result of a mathematical analysis. Values were calculated on models for the material Nd₂Fe₁₄B. Operational parameters might slightly deviate from the simulation results. Use these data as a reference point during assembly planning.

Table 1: Static pull force (force vs gap) - characteristics
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	warning
1 mm	4400 Gs 440.0 mT	8.83 kg / 19.47 LBS 8832.4 g / 86.6 N	warning
2 mm	4254 Gs 425.4 mT	8.26 kg / 18.21 LBS 8258.2 g / 81.0 N	warning
3 mm	4107 Gs 410.7 mT	7.70 kg / 16.97 LBS 7697.5 g / 75.5 N	warning
5 mm	3812 Gs 381.2 mT	6.63 kg / 14.62 LBS 6630.0 g / 65.0 N	warning
10 mm	3097 Gs 309.7 mT	4.38 kg / 9.65 LBS 4375.1 g / 42.9 N	warning
15 mm	2463 Gs 246.3 mT	2.77 kg / 6.10 LBS 2767.8 g / 27.2 N	warning
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

Magnetic force decreases drastically per each millimeter of distance. Remember that even a very thin break (e.g., contamination, varnish, dust) significantly reduces the pull force. Neodymiums operate most effectively during direct contact; gap drastically cuts the force. Analyze how flashily the pull force fall, when the magnet does not adhere directly to the steel surface. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Shear hold (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 table below shows the theoretical shear load necessary to start the shifting of the magnet down along a vertical metal surface (considering standard friction coefficient). The holding force depends on the air gap between the magnet and the surface.

Table 3: Wall mounting (sliding) - vertical pull
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 mounting a holder on a vertical wall (e.g., a board), it will only hold only approx. 20%-30% of nominal attraction strength. Gravitational force and a low friction coefficient cause that products move down easier than they detach. Designing a hanger? Note that the sliding force is much weaker than the perpendicular breakaway force. On a slippery surface, the element will give way down under a noticeably lighter load. Using a rubber layer can effectively 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 too thin steel cannot focus the entire magnetic field, which wastes potential of the magnet. Should you install a neodymium to a weak sheet, the field will pass right through and the attraction force will be weaker. To squeeze the maximum of this neodymium's potential, you require a sufficiently solid piece of metal. The saturation phenomenon means that on thin elements (e.g., car bodies), the product works worse. We advise picking the steel thickness from these parameters.

Table 5: Working in heat (material behavior) - thermal limit
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 after exceeding the maximum temperature. Avoid high temperatures – excessive heat can irreversibly demagnetize this product. With every degree above norm, the magnet's force momentarily drops. Do not use this magnet close to ovens higher than its safe range. Exceeding the critical threshold will result in permanent loss of magnetic properties.

*Important note: Temperature resistance is determined by both grade, but also on the magnet's shape. Low-profile magnets (low permeance coefficient) may lose charge permanently sooner than taller cylinders. Red status in the table indicates a risk of irreversible loss for this particular item.

Table 6: Two magnets (attraction) - field range
MP 60x20x5 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Sliding Force (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 wider radius than a neodymium and metal setup. The setup of magnet-to-magnet generates a stronger field and a larger range of performance. Want to build a strong closure? Use a pair of magnets instead of a neodymium and a striker plate. Exercise caution that when connecting a pair of magnets, the pinch force is huge. The levitation is a bit weaker than the attraction, but still impressive.
*Flux density in repulsion mode is approximately ~0 Gs at the geometric center between the magnets (resulting from vector opposition).
Note: Estimates show shear force of a pair of matching magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Safety (HSE) (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
Car key	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 large risk to electronics and pacemakers. These magnets generate a field that prevents correct functioning of sensitive medical devices. Notice: the invisible magnetic field acts through matter and plastic. Exceptional care must be taken by people with hearing aids and insulin pumps. Influence will be felt by: automatic timepieces, car keys, membranes, and displays. Avoid contact with magnetic cards, hard drives, or precise measuring instruments.

Table 8: Impact energy (cracking risk) - 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

Magnetic elements are prone to chipping – a violent impact against metal causes immediate chipping. Control the attraction moment – a neodymium left loose turns into a projectile. Striking energy can trigger coating fragments or injury to skin. Be sure to control the product during mounting so it doesn't hit with great force against the steel surface. A contact at a velocity of dozens of km/h means shattering of the neodymium. Wear safety glasses when playing with powerful specimens.

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)

Neodymium magnets are highly susceptible to corrosion without proper protection. Moisture resistance is crucial for installations in bathrooms or outdoors.

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 pole surface. Key data when building generators and motors. The P_c coefficient determines the working geometry.

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%

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

In water, the magnet feels stronger thanks to Archimedes' principle. Note: for permanent underwater work, we recommend magnets with an anti-corrosive (epoxy) coating.

1. Vertical hold

*Warning: On a vertical surface, the magnet holds merely ~20% of its perpendicular strength.

2. Efficiency vs thickness

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

3. Heat tolerance

*For N38 grade, the critical 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.

Technical specification and ecology

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 magnet with a hole MP 60x20x5 / N38 is created for mechanical fastening, 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. It is also often used in advertising for fixing signs and in workshops for organizing tools.

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. 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.

Moisture can penetrate micro-cracks in the coating and cause oxidation of the magnet. 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. 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.

It is a magnetic ring with a diameter of 60 mm and thickness 5 mm. The key parameter here is the holding force 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. In the case of connecting two rings, make sure one is turned the right way. We do not offer paired sets with marked poles in this category, but they are easy to match manually.

Strengths and weaknesses of rare earth magnets.

Benefits

In addition to their pulling strength, neodymium magnets provide the following advantages:

They retain attractive force for around 10 years – the drop is just ~1% (in theory),
They are noted for resistance to demagnetization induced by external disturbances,
By applying a reflective layer of silver, the element has an modern look,
They show high magnetic induction at the operating surface, making them more effective,
Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
Thanks to flexibility in designing and the capacity to customize to client solutions,
Fundamental importance in modern technologies – they are used in data components, brushless drives, medical devices, as well as other advanced devices.
Thanks to their power density, small magnets offer high operating force, in miniature format,

Limitations

Problematic aspects of neodymium magnets and proposals for their use:

They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
NdFeB magnets lose power 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 very 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 secure oxidation and corrosion.
We suggest casing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these products can disrupt the diagnostic process medical after entering the body.
Due to neodymium price, their price exceeds standard values,

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Information about lifting capacity was determined for ideal contact conditions, assuming:

on a base made of mild steel, effectively closing the magnetic field
possessing a thickness of minimum 10 mm to ensure full flux closure
with a surface free of scratches
without any air gap between the magnet and steel
for force acting at a right angle (pull-off, not shear)
at conditions approx. 20°C

Key elements affecting lifting force

In practice, the real power is determined by several key aspects, ranked from crucial:

Clearance – existence of any layer (rust, dirt, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
Angle of force application – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
Chemical composition of the base – mild steel gives the best results. Higher carbon content lower magnetic permeability and holding force.
Surface quality – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets

Protective goggles

NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets leads to them cracking into shards.

Serious injuries

Large magnets can break fingers instantly. Never put your hand between two strong magnets.

Electronic hazard

Powerful magnetic fields can destroy records on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Precision electronics

Navigation devices and mobile phones are highly sensitive to magnetic fields. Direct contact with a strong magnet can decalibrate the sensors in your phone.

Medical interference

For implant holders: Strong magnetic fields affect electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.

Flammability

Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.

Powerful field

Use magnets with awareness. Their huge power can surprise even experienced users. Be vigilant and respect their power.

Product not for children

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.

Skin irritation risks

It is widely known that nickel (the usual finish) is a strong allergen. For allergy sufferers, avoid direct skin contact or choose versions in plastic housing.

Thermal limits

Keep cool. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Caution! More info about hazards in the article: Safety of working with magnets.

MP 60x20x5 / N38 - ring magnet

Physical properties - MP 60x20x5 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Technical modeling of the magnet - data

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

Table 2: Shear hold (wall) MP 60x20x5 / N38

Table 3: Wall mounting (sliding) - vertical pull MP 60x20x5 / N38

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

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

Table 6: Two magnets (attraction) - field range MP 60x20x5 / N38

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

Table 8: Impact energy (cracking risk) - 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. Efficiency vs thickness

3. Heat tolerance

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

Elemental analysis

Environmental data

Force (pull)

Field Strength

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Strengths and weaknesses of rare earth magnets.

Benefits

Limitations

Lifting parameters

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Key elements affecting lifting force

H&S for magnets

Protective goggles

Serious injuries

Electronic hazard

Precision electronics

Medical interference

Flammability

Powerful field

Product not for children

Skin irritation risks

Thermal limits

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

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

Table 2: Shear hold (wall)
MP 60x20x5 / N38

Table 3: Wall mounting (sliding) - vertical pull
MP 60x20x5 / N38

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

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

Table 6: Two magnets (attraction) - field range
MP 60x20x5 / N38

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

Table 8: Impact energy (cracking risk) - 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