Product available Ships today (order by 14:00)

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: PLN 1-6500
Rating: 5

magnetic holder with hook

Catalog no 310427

GTIN/EAN: 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

check parameters »

22.14 ZŁ with VAT / pcs + price for transport

18.00 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Contact us by phone +48 888 99 98 98 or contact us via inquiry form the contact page.
Force as well as shape of a magnet can be estimated with our online calculation tool.

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Physical properties - 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/EAN	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	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 specification and ecology

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%

Ecology and recycling (GPSR)

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: 310427-2026

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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 tip is fully demountable - you can unscrew the hook and screw in a bolt, eyelet, or other element in its place. Thanks to this, one magnet can perform many functions - sometimes be a hook, and sometimes a holder for a bolt.

The given value defines the maximum load when suspended under a thick, horizontal ceiling beam. When mounting on a wall (vertically), the holding force is much lower due to shear force (the magnet may slide).

The cup acts as a magnetic armature, intensifying the neodymium action and increasing efficiency. 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. Metal elements can rust with constant contact with atmospheric moisture.

Pros as well as cons of rare earth magnets.

Pros

Apart from their superior holding force, neodymium magnets have these key benefits:

They retain magnetic properties for almost ten years – the loss is just ~1% (according to analyses),
Magnets perfectly resist against loss of magnetization caused by foreign field sources,
Thanks to the shimmering finish, the plating of Ni-Cu-Ni, gold, or silver-plated gives an visually attractive appearance,
They are known for high magnetic induction at the operating surface, which increases their power,
Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
Due to the ability of flexible shaping and adaptation to specialized solutions, NdFeB magnets can be modeled in a broad palette of shapes and sizes, which amplifies use scope,
Wide application in electronics industry – they find application in data components, motor assemblies, precision medical tools, also complex engineering applications.
Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Cons

Disadvantages of neodymium magnets:

At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
Limited ability of making nuts in the magnet and complex shapes - recommended is a housing - magnetic holder.
Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Information about lifting capacity is the result of a measurement for ideal contact conditions, assuming:

on a block made of structural steel, perfectly concentrating the magnetic field
possessing a massiveness of minimum 10 mm to avoid saturation
with a surface free of scratches
with direct contact (no coatings)
under axial application of breakaway force (90-degree angle)
at standard ambient temperature

Practical aspects of lifting capacity – factors

In practice, the actual holding force results from several key aspects, ranked from most significant:

Air gap (betwixt the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
Metal type – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal weaken the grip.
Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

Warnings

Keep away from computers

Very strong magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.

Eye protection

Protect your eyes. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Wear goggles.

Caution required

Exercise caution. Rare earth magnets attract from a long distance and connect with massive power, often quicker than you can move away.

No play value

Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Store away from children and animals.

Hand protection

Protect your hands. Two large magnets will snap together instantly with a force of massive weight, destroying anything in their path. Exercise extreme caution!

Do not overheat magnets

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.

Keep away from electronics

Navigation devices and mobile phones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Nickel allergy

Some people have a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Frequent touching may cause an allergic reaction. We strongly advise use protective gloves.

Danger to pacemakers

Individuals with a ICD must keep an absolute distance from magnets. The magnetic field can interfere with the functioning of the implant.

Combustion hazard

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

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

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

Other proposals

SM 25x125 [2xM8] / N52 - magnetic separator

UMGGW 88x8.5 [M6] GW / N38 - magnetic holder rubber internal thread

MP 20x5x5 / N38 - ring magnet

MW 70x20 / N38 - cylindrical magnet

Pros as well as cons of rare earth magnets.

Pros

Cons

Lifting parameters

Maximum holding power of the magnet – what it depends on?

Practical aspects of lifting capacity – factors

Warnings

Keep away from computers

Eye protection

Caution required

No play value

Hand protection

Do not overheat magnets

Keep away from electronics

Nickel allergy

Danger to pacemakers

Combustion hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C