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UMH 32x8x46 [M6] / N38 - magnetic holder with hook

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500
Rating: 5

magnetic holder with hook

Catalog no 310427

GTIN: 5906301814566

Diameter Ø

32 mm [±1 mm]

Height

46 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

53 g

Magnetization Direction

↑ axial

Load capacity

38.00 kg / 372.65 N

Coating

[NiCuNi] Nickel

22.14 ZŁ with VAT / pcs + price for transport

18.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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Lifting power along with form of a neodymium magnet can be analyzed with our force calculator.

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UMH 32x8x46 [M6] / N38 - magnetic holder with hook

Specification / characteristics UMH 32x8x46 [M6] / N38 - magnetic holder with hook

properties

properties	values
Cat. no.	310427
GTIN	5906301814566
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	32 mm [±1 mm]
Height	46 mm [±1 mm]
Height	8 mm [±1 mm]
Weight	53 g
Magnetization Direction	↑ axial
Load capacity ~ ?	38.00 kg / 372.65 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 32x8x46 [M6] / N38 - magnetic holder with hook

properties	values	units
remenance Br [Min. - Max.] ?	12.2-12.6	kGs
remenance Br [Min. - Max.] ?	1220-1260	T
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 106	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10-6	°C^-1
Young's modulus	1.7 x 104	kg/mm²

Measurement Calculator

Magnet Pull Force

Force in kg

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UMH 16x5x32 [M4] / N38 - magnetic holder with hook

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Holders with a hook are indispensable in large-format stores and warehouses for suspending advertisements (POS systems). In workshops and garages, they work perfectly for guiding cables or hanging work lighting.

The magnet has a standard threaded socket, which allows replacing the hook with any other accessory with a thread. Thanks to this, one magnet can perform many functions - sometimes be a hook, and sometimes a holder for a bolt.

The nominal capacity (e.g., 38.00 kg) refers to perpendicular (vertical) force when mounted on the ceiling. When mounting on a wall (vertically), the holding force is much lower due to shear force (the magnet may slide).

Thanks to the metal cover, attraction force is concentrated, which significantly increases capacity compared to a bare magnet. A bare magnet could crack upon sudden application to metal, and the holder is resistant to this.

For outdoor use (in rain), metal hangers may eventually develop a rusty coating over time. If you are looking for an outdoor hanger, choose a model in rubberized or plastic housing, which is tight.

Advantages and disadvantages of rare earth magnets.

Pros

Besides their high retention, neodymium magnets are valued for these benefits:

Their strength remains stable, and after around ten years it drops only by ~1% (according to research),
They show high resistance to demagnetization induced by external magnetic fields,
Thanks to the shiny finish, the surface of nickel, gold, or silver gives an clean appearance,
The surface of neodymium magnets generates a unique magnetic field – this is a key feature,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
Thanks to flexibility in forming and the capacity to modify to complex applications,
Significant place in innovative solutions – they are commonly used in data components, motor assemblies, precision medical tools, and multitasking production systems.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:

To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its 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
They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic holder, due to difficulties in producing nuts inside the magnet and complex forms.
Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
Due to complex production process, their price is relatively high,

Lifting parameters

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

The load parameter shown represents the peak performance, measured under ideal test conditions, specifically:

using a plate made of high-permeability steel, acting as a magnetic yoke
possessing a thickness of at least 10 mm to ensure full flux closure
characterized by even structure
without any insulating layer between the magnet and steel
during pulling in a direction vertical to the plane
at temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

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

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the magnet efficiency, often by half at just 0.5 mm.
Direction of force – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly several times lower (approx. 1/5 of the lifting capacity).
Plate thickness – too thin steel does not close the flux, causing part of the power to be escaped into the air.
Material type – the best choice is high-permeability steel. Cast iron may attract less.
Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.

Safety rules for work with neodymium magnets

GPS Danger

Remember: rare earth magnets produce a field that disrupts precision electronics. Keep a safe distance from your phone, tablet, and GPS.

Pacemakers

Health Alert: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.

Physical harm

Risk of injury: The attraction force is so great that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.

Machining danger

Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Eye protection

Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.

Operating temperature

Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.

This is not a toy

Only for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Store away from kids and pets.

Threat to electronics

Do not bring magnets near a purse, laptop, or TV. The magnetism can permanently damage these devices and erase data from cards.

Nickel coating and allergies

It is widely known that nickel (the usual finish) is a common allergen. For allergy sufferers, prevent direct skin contact or choose encased magnets.

Handling rules

Handle with care. Rare earth magnets attract from a distance and connect with huge force, often faster than you can move away.

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

UMH 32x8x46 [M6] / N38 - magnetic holder with hook

Hunting for a discount?

UMH 32x8x46 [M6] / N38 - magnetic holder with hook

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Magnet Pull Force

Magnetic Field

Other offers

MPL 50x20x20 / N38 - lamellar magnet

UMS 16x6.5x3.5x5 / N38 - conical magnetic holder

MW 12x1 / N38 - cylindrical magnet

UMH 16x5x32 [M4] / N38 - magnetic holder with hook

Advantages and disadvantages of rare earth magnets.

Pros

Weaknesses

Lifting parameters

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

What influences lifting capacity in practice

GPS Danger

Pacemakers

Physical harm

Machining danger

Eye protection

Operating temperature

This is not a toy

Threat to electronics

Nickel coating and allergies

Handling rules

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C