Product available Ships tomorrow

MP 30x6x10 / 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 030197

GTIN/EAN: 5906301812142

5.00

Diameter

30 mm [±0,1 mm]

internal diameter Ø

6 mm [±0,1 mm]

Height

10 mm [±0,1 mm]

Weight

50.89 g

Magnetization Direction

↑ axial

Load capacity

20.71 kg / 203.16 N

Magnetic Induction

343.81 mT / 3438 Gs

Coating

[NiCuNi] Nickel

view technical data »

16.00 ZŁ with VAT / pcs + price for transport

13.01 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

13.01 ZŁ

16.00 ZŁ

price from 50 pcs

12.23 ZŁ

15.04 ZŁ

price from 200 pcs

11.45 ZŁ

14.08 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Can't decide what to choose?

Pick up the phone and ask +48 888 99 98 98 otherwise contact us by means of our online form through our site.
Specifications as well as form of magnetic components can be tested using our force calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical - MP 30x6x10 / N38 - ring magnet

Specification / characteristics - MP 30x6x10 / N38 - ring magnet

properties

properties	values
Cat. no.	030197
GTIN/EAN	5906301812142
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	30 mm [±0,1 mm]
internal diameter Ø	6 mm [±0,1 mm]
Height	10 mm [±0,1 mm]
Weight	50.89 g
Magnetization Direction	↑ axial
Load capacity ~ ?	20.71 kg / 203.16 N
Magnetic Induction ~ ?	343.81 mT / 3438 Gs
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±0.1 mm

Magnetic properties of material N38

Specification / characteristics MP 30x6x10 / 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

Physical simulation of the assembly - data

The following information constitute the direct effect of a engineering analysis. Results are based on algorithms for the class Nd₂Fe₁₄B. Real-world parameters may deviate from the simulation results. Treat these data as a preliminary roadmap when designing systems.

Table 1: Static force (pull vs distance) - characteristics
MP 30x6x10 / N38

Distance (mm)	Induction (Gauss) / mT	Pull Force (kg/lbs/g/N)	Risk Status
0 mm	5619 Gs 561.9 mT	20.71 kg / 45.66 LBS 20710.0 g / 203.2 N	crushing
1 mm	5241 Gs 524.1 mT	18.01 kg / 39.71 LBS 18011.7 g / 176.7 N	crushing
2 mm	4861 Gs 486.1 mT	15.50 kg / 34.17 LBS 15498.1 g / 152.0 N	crushing
3 mm	4490 Gs 449.0 mT	13.22 kg / 29.15 LBS 13223.5 g / 129.7 N	crushing
5 mm	3792 Gs 379.2 mT	9.43 kg / 20.79 LBS 9429.0 g / 92.5 N	medium risk
10 mm	2404 Gs 240.4 mT	3.79 kg / 8.36 LBS 3791.3 g / 37.2 N	medium risk
15 mm	1526 Gs 152.6 mT	1.53 kg / 3.37 LBS 1527.0 g / 15.0 N	safe
20 mm	1000 Gs 100.0 mT	0.66 kg / 1.45 LBS 655.5 g / 6.4 N	safe
30 mm	482 Gs 48.2 mT	0.15 kg / 0.34 LBS 152.6 g / 1.5 N	safe
50 mm	161 Gs 16.1 mT	0.02 kg / 0.04 LBS 17.0 g / 0.2 N	safe

Pulling power decreases sharply with every mm of spacing. Remember that even the smallest gap (e.g., contamination, paint, dust) strongly diminishes the holding power. Magnetic products hold most effectively at the point of direct contact; gap kills the force. Analyze how rapidly the load capacity plummet, when the magnet does not touch flatly to the metal substrate. When calculating the mounting, eliminate unnecessary gaps.

Table 2: Sliding hold (vertical surface)
MP 30x6x10 / N38

Distance (mm)	Friction coefficient	Pull Force (kg/lbs/g/N)
0 mm	Stal (~0.2)	4.14 kg / 9.13 LBS 4142.0 g / 40.6 N
1 mm	Stal (~0.2)	3.60 kg / 7.94 LBS 3602.0 g / 35.3 N
2 mm	Stal (~0.2)	3.10 kg / 6.83 LBS 3100.0 g / 30.4 N
3 mm	Stal (~0.2)	2.64 kg / 5.83 LBS 2644.0 g / 25.9 N
5 mm	Stal (~0.2)	1.89 kg / 4.16 LBS 1886.0 g / 18.5 N
10 mm	Stal (~0.2)	0.76 kg / 1.67 LBS 758.0 g / 7.4 N
15 mm	Stal (~0.2)	0.31 kg / 0.67 LBS 306.0 g / 3.0 N
20 mm	Stal (~0.2)	0.13 kg / 0.29 LBS 132.0 g / 1.3 N
30 mm	Stal (~0.2)	0.03 kg / 0.07 LBS 30.0 g / 0.3 N
50 mm	Stal (~0.2)	0.00 kg / 0.01 LBS 4.0 g / 0.0 N

The table below calculates the theoretical force needed to initiate the downward movement of the magnet vertically along a vertical steel wall (considering typical friction). This parameter is a function of the gap size between the magnet and the surface.

Table 3: Vertical assembly (shearing) - vertical pull
MP 30x6x10 / N38

Surface type	Friction coefficient / % Mocy	Max load (kg/lbs/g/N)
Raw steel	µ = 0.3 30% Nominalnej Siły	6.21 kg / 13.70 LBS 6213.0 g / 60.9 N
Painted steel (standard)	µ = 0.2 20% Nominalnej Siły	4.14 kg / 9.13 LBS 4142.0 g / 40.6 N
Oily/slippery steel	µ = 0.1 10% Nominalnej Siły	2.07 kg / 4.57 LBS 2071.0 g / 20.3 N
Magnet with anti-slip rubber	µ = 0.5 50% Nominalnej Siły	10.36 kg / 22.83 LBS 10355.0 g / 101.6 N

When placing a magnet on a vertical wall (e.g., a car body), it will only hold just approx. 20%-30% of nominal attraction strength. Gravity and a low friction coefficient mean that holders slide down faster than they detach. Want to create 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 load. Application of an anti-slip coating can significantly raise the stability.

Table 4: Material efficiency (saturation) - sheet metal selection
MP 30x6x10 / N38

Steel thickness (mm)	% power	Real pull force (kg/lbs/g/N)
0.5 mm	5%	1.04 kg / 2.28 LBS 1035.5 g / 10.2 N
1 mm	13%	2.59 kg / 5.71 LBS 2588.8 g / 25.4 N
2 mm	25%	5.18 kg / 11.41 LBS 5177.5 g / 50.8 N
3 mm	38%	7.77 kg / 17.12 LBS 7766.3 g / 76.2 N
5 mm	63%	12.94 kg / 28.54 LBS 12943.8 g / 127.0 N
10 mm	100%	20.71 kg / 45.66 LBS 20710.0 g / 203.2 N
11 mm	100%	20.71 kg / 45.66 LBS 20710.0 g / 203.2 N
12 mm	100%	20.71 kg / 45.66 LBS 20710.0 g / 203.2 N

A thin metal plate is not enough to absorb the entire magnetic field, which squanders power of the magnet. Should you install a neodymium to a thin surface, the magnetism will penetrate right through and the pull force will drop sharply. To utilize full efficiency of this neodymium's power, you require a sufficiently solid backing of steel. The material oversaturation means that on thin elements (e.g., thin profiles), the product shows lower pull force. We advise picking the steel thickness from these parameters.

Table 5: Thermal stability (stability) - power drop
MP 30x6x10 / N38

Ambient temp. (°C)	Power loss	Remaining pull (kg/lbs/g/N)	Status
20 °C	0.0%	20.71 kg / 45.66 LBS 20710.0 g / 203.2 N	OK
40 °C	-2.2%	20.25 kg / 44.65 LBS 20254.4 g / 198.7 N	OK
60 °C	-4.4%	19.80 kg / 43.65 LBS 19798.8 g / 194.2 N	OK
80 °C	-6.6%	19.34 kg / 42.64 LBS 19343.1 g / 189.8 N
100 °C	-28.8%	14.75 kg / 32.51 LBS 14745.5 g / 144.7 N

Standard neodymium magnets irreversibly lose strength above the temperature limit. Protect against heat – high temperature can irreversibly destroy this product. As the temperature rises, the neodymium's capacity temporarily drops. Refrain from using this magnet in hot environments exceeding its operating temperature limit. Ignoring the limit will result in destruction of magnetic properties.

*Important note: Thermal stability depends not only on the material grade, and the Permeance Coefficient Pc. Thin magnets (low permeance coefficient) are more susceptible to demagnetization sooner compared to rod magnets. The danger warning in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 30x6x10 / N38

Gap (mm)	Attraction (kg/lbs) (N-S)	Shear Force (kg/lbs/g/N)	Repulsion (kg/lbs) (N-N)
0 mm	103.97 kg / 229.22 LBS 6 035 Gs	15.60 kg / 34.38 LBS 15596 g / 153.0 N	N/A
1 mm	97.15 kg / 214.17 LBS 10 864 Gs	14.57 kg / 32.13 LBS 14572 g / 143.0 N	87.43 kg / 192.75 LBS ~0 Gs
2 mm	90.42 kg / 199.35 LBS 10 481 Gs	13.56 kg / 29.90 LBS 13564 g / 133.1 N	81.38 kg / 179.42 LBS ~0 Gs
3 mm	83.97 kg / 185.13 LBS 10 100 Gs	12.60 kg / 27.77 LBS 12596 g / 123.6 N	75.57 kg / 166.61 LBS ~0 Gs
5 mm	71.94 kg / 158.60 LBS 9 349 Gs	10.79 kg / 23.79 LBS 10791 g / 105.9 N	64.75 kg / 142.74 LBS ~0 Gs
10 mm	47.34 kg / 104.36 LBS 7 583 Gs	7.10 kg / 15.65 LBS 7100 g / 69.7 N	42.60 kg / 93.92 LBS ~0 Gs
20 mm	19.03 kg / 41.96 LBS 4 809 Gs	2.86 kg / 6.29 LBS 2855 g / 28.0 N	17.13 kg / 37.77 LBS ~0 Gs
50 mm	1.53 kg / 3.37 LBS 1 363 Gs	0.23 kg / 0.51 LBS 229 g / 2.2 N	1.38 kg / 3.03 LBS ~0 Gs
60 mm	0.77 kg / 1.69 LBS 965 Gs	0.11 kg / 0.25 LBS 115 g / 1.1 N	0.69 kg / 1.52 LBS ~0 Gs
70 mm	0.41 kg / 0.90 LBS 706 Gs	0.06 kg / 0.14 LBS 61 g / 0.6 N	0.37 kg / 0.81 LBS ~0 Gs
80 mm	0.23 kg / 0.51 LBS 531 Gs	0.03 kg / 0.08 LBS 35 g / 0.3 N	0.21 kg / 0.46 LBS ~0 Gs
90 mm	0.14 kg / 0.30 LBS 409 Gs	0.02 kg / 0.05 LBS 21 g / 0.2 N	0.12 kg / 0.27 LBS ~0 Gs
100 mm	0.09 kg / 0.19 LBS 322 Gs	0.01 kg / 0.03 LBS 13 g / 0.1 N	0.08 kg / 0.17 LBS ~0 Gs

Two magnetic products interact from a much further distance than a magnet and steel setup. The setup of magnet-to-magnet generates a stronger field and a larger range of action. Planning to create a powerful holder? Apply two magnets instead of one magnet and a striker plate. Exercise caution that when bringing together two magnets, the pinch force is massive. The repulsion force is a bit weaker than the attraction, but still impressive.
*Flux density in repulsion mode drops to ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Calculations show sliding force of dual matching neodymium magnets (friction ~0.15 for Ni-Ni plating).

Table 7: Hazards (implants) - precautionary measures
MP 30x6x10 / N38

Object / Device	Limit (Gauss) / mT	Safe distance
Pacemaker	5 Gs (0.5 mT)	19.5 cm
Hearing aid	10 Gs (1.0 mT)	15.0 cm
Mechanical watch	20 Gs (2.0 mT)	12.0 cm
Phone / Smartphone	40 Gs (4.0 mT)	9.0 cm
Car key	50 Gs (5.0 mT)	8.5 cm
Payment card	400 Gs (40.0 mT)	3.5 cm
HDD hard drive	600 Gs (60.0 mT)	3.0 cm

Powerful magnet radiation poses a large risk to electronics as well as medical implants. These neodymiums generate a field that destroys function of digital equipment. Remember: the invisible magnetic field acts through matter and glass. Special caution must be taken by people with cochlear implants and insulin pumps. The risk also applies to: automatic timepieces, remotes, speakers, and screens. Do not bring the product near payment cards, hard drives, or sensitive navigation tools.

Table 8: Dynamics (kinetic energy) - collision effects
MP 30x6x10 / N38

Start from (mm)	Speed (km/h)	Energy (J)
10 mm	22.55 km/h (6.26 m/s)	1.00 J
30 mm	35.40 km/h (9.83 m/s)	2.46 J
50 mm	45.52 km/h (12.64 m/s)	4.07 J
100 mm	64.34 km/h (17.87 m/s)	8.13 J

Magnetic elements are very brittle – a violent impact against metal causes immediate chipping. Watch the impact speed – a neodymium left loose turns into a projectile. Impact energy can trigger coating fragments or dangerous crushing to fingers. Hold the magnet firmly during installation so it doesn't slam with momentum against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Corrosion resistance
MP 30x6x10 / 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. Improper coating selection is the most common cause of magnet failure over time.

Table 10: Construction data (Flux)
MP 30x6x10 / N38

Parameter	Value	SI Unit / Description
Magnetic Flux	31 585 Mx	315.8 µWb
P_c Coefficient	0.96	High (Stable)

Total magnetic flux emitted by the pole surface. Essential parameter in coil applications as well as sensors. The P_c coefficient defines the working geometry.

Table 11: Hydrostatics and buoyancy
MP 30x6x10 / N38

Environment	Effective steel pull	Effect
Air (land)	20.71 kg	Standard
Water (riverbed)	23.71 kg (+3.00 kg buoyancy gain)	+14.5%

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

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

1. Vertical hold

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

2. Efficiency vs thickness

*Thin metal sheet (e.g. 0.5mm PC case) drastically limits the holding force.

3. Heat tolerance

*For standard magnets, 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) = 0.96

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

Material specification

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

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: 030197-2026

Magnet Unit Converter

Pulling force

Force in kg

Force (N)

lbs

Field Strength

Gauss (Gs)

Tesla (T)

Insert a value in one of the inputs, and all other values convert on the fly.

Other deals

Product available Ships tomorrow

UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread

7.38 ZŁ brutto / pcs

Product available Ships tomorrow

MW 55x25 / N38 - cylindrical magnet

154.21 ZŁ brutto / pcs

Product available Ships tomorrow

UMGGW 66x8.5 [M8] GW / N38 - magnetic holder rubber internal thread

23.37 ZŁ brutto / pcs

Product available Ships tomorrow

MPL 20x5x5 / N38 - lamellar magnet

2.76 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. Thanks to the hole (often for a screw), this model enables easy screwing to wood, wall, plastic, or metal. This product with a force of 20.71 kg works great as a door latch, speaker holder, or mounting element in devices.

This material behaves more like porcelain than steel, so it doesn't forgive mistakes during mounting. 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.

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 easily scratched when tightening the screw, which will become a corrosion focus. If you must use it outside, paint it with anti-corrosion paint after mounting.

The inner hole diameter determines the maximum size of the mounting element. For magnets with a straight hole, a conical head can act like a wedge and burst the magnet. Always check that the screw head is not larger than the outer diameter of the magnet (30 mm), so it doesn't protrude beyond the outline.

It is a magnetic ring with a diameter of 30 mm and thickness 10 mm. The key parameter here is the holding force amounting to approximately 20.71 kg (force ~203.16 N). The product has a [NiCuNi] coating and is made of NdFeB material. Inner hole dimension: 6 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). When ordering a larger quantity, magnets are usually packed in stacks, where they are already naturally paired.

Strengths and weaknesses of Nd₂Fe₁₄B magnets.

Advantages

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

They virtually do not lose power, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
Magnets perfectly resist against loss of magnetization caused by external fields,
In other words, due to the shiny surface of nickel, the element gains visual value,
Neodymium magnets ensure maximum magnetic induction on a contact point, which ensures high operational effectiveness,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of individual shaping as well as modifying to precise conditions,
Key role in modern technologies – they serve a role in HDD drives, electromotive mechanisms, advanced medical instruments, also complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in miniature devices

Limitations

Disadvantages of NdFeB magnets:

They are fragile upon too strong 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
Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
Due to limitations in producing nuts and complicated forms in magnets, we recommend using a housing - magnetic holder.
Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these magnets are able to disrupt the diagnostic process medical after entering the body.
Due to neodymium price, their price is higher than average,

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what it depends on?

Magnet power was defined for the most favorable conditions, taking into account:

with the application of a sheet made of special test steel, ensuring full magnetic saturation
possessing a massiveness of at least 10 mm to avoid saturation
characterized by smoothness
with zero gap (without paint)
for force acting at a right angle (in the magnet axis)
at ambient temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

In practice, the actual holding force depends on a number of factors, ranked from crucial:

Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, however under shearing force the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings

Protect data

Equipment safety: Strong magnets can ruin payment cards and delicate electronics (heart implants, medical aids, timepieces).

Serious injuries

Protect your hands. Two large magnets will join immediately with a force of massive weight, destroying anything in their path. Be careful!

Health Danger

Warning for patients: Powerful magnets affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Protective goggles

NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Collision of two magnets will cause them cracking into small pieces.

Machining danger

Mechanical processing of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Avoid contact if allergic

It is widely known that nickel (standard magnet coating) is a strong allergen. If your skin reacts to metals, prevent direct skin contact or opt for coated magnets.

Operating temperature

Watch the temperature. Heating the magnet to high heat will ruin its magnetic structure and pulling force.

GPS Danger

GPS units and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

This is not a toy

Absolutely store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are life-threatening.

Handling rules

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Warning! Want to know more? Check our post: Why are neodymium magnets dangerous?

MP 30x6x10 / N38 - ring magnet

Technical - MP 30x6x10 / N38 - ring magnet

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical simulation of the assembly - data

Table 1: Static force (pull vs distance) - characteristics MP 30x6x10 / N38

Table 2: Sliding hold (vertical surface) MP 30x6x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull MP 30x6x10 / N38

Table 4: Material efficiency (saturation) - sheet metal selection MP 30x6x10 / N38

Table 5: Thermal stability (stability) - power drop MP 30x6x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range MP 30x6x10 / N38

Table 7: Hazards (implants) - precautionary measures MP 30x6x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects MP 30x6x10 / N38

Table 9: Corrosion resistance MP 30x6x10 / N38

Table 10: Construction data (Flux) MP 30x6x10 / N38

Table 11: Hydrostatics and buoyancy MP 30x6x10 / N38

1. Vertical hold

2. Efficiency vs thickness

3. Heat tolerance

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

Material specification

Environmental data

Pulling force

Field Strength

Other deals

UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread

MW 55x25 / N38 - cylindrical magnet

UMGGW 66x8.5 [M8] GW / N38 - magnetic holder rubber internal thread

MPL 20x5x5 / N38 - lamellar magnet

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Limitations

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what it depends on?

Determinants of lifting force in real conditions

Warnings

Protect data

Serious injuries

Health Danger

Protective goggles

Machining danger

Avoid contact if allergic

Operating temperature

GPS Danger

This is not a toy

Handling rules

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Table 1: Static force (pull vs distance) - characteristics
MP 30x6x10 / N38

Table 2: Sliding hold (vertical surface)
MP 30x6x10 / N38

Table 3: Vertical assembly (shearing) - vertical pull
MP 30x6x10 / N38

Table 4: Material efficiency (saturation) - sheet metal selection
MP 30x6x10 / N38

Table 5: Thermal stability (stability) - power drop
MP 30x6x10 / N38

Table 6: Magnet-Magnet interaction (attraction) - field range
MP 30x6x10 / N38

Table 7: Hazards (implants) - precautionary measures
MP 30x6x10 / N38

Table 8: Dynamics (kinetic energy) - collision effects
MP 30x6x10 / N38

Table 9: Corrosion resistance
MP 30x6x10 / N38

Table 10: Construction data (Flux)
MP 30x6x10 / N38

Table 11: Hydrostatics and buoyancy
MP 30x6x10 / N38

Strengths and weaknesses of Nd₂Fe₁₄B magnets.