UMH 48x11x65 [M6] / N38 - magnetic holder with hook

Product available Ships today (order by 14:00)

UMH 48x11x65 [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 310430

GTIN/EAN: 5906301814597

5.00

Diameter Ø

48 mm [±1 mm]

Height

65 mm [±1 mm]

Height

11 mm [±1 mm]

Weight

145 g

Magnetization Direction

↑ axial

Load capacity

88.00 kg / 862.99 N

Coating

[NiCuNi] Nickel

technical parameters »

68.88 ZŁ with VAT / pcs + price for transport

56.00 ZŁ net + 23% VAT / pcs

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Technical data of the product - UMH 48x11x65 [M6] / N38 - magnetic holder with hook

Specification / characteristics - UMH 48x11x65 [M6] / N38 - magnetic holder with hook

properties

properties	values
Cat. no.	310430
GTIN/EAN	5906301814597
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	48 mm [±1 mm]
Height	65 mm [±1 mm]
Height	11 mm [±1 mm]
Weight	145 g
Magnetization Direction	↑ axial
Load capacity ~ ?	88.00 kg / 862.99 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 48x11x65 [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 and environmental data

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%

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: 310430-2025

Measurement Calculator

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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. Check the thread size in the product specification to select matching replacements.

You will get the greatest force by mounting the magnet on a thick, smooth steel surface vertically. If you hang the magnet on a wall, the real capacity is approx. 20-30% of the nominal value.

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.

In the bathroom or kitchen, they will work perfectly, provided they are not directly splashed with water. Metal elements can rust with constant contact with atmospheric moisture.

Advantages as well as disadvantages of neodymium magnets.

Strengths

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

Their magnetic field remains stable, and after approximately ten years it drops only by ~1% (theoretically),
They have excellent resistance to magnetic field loss when exposed to external magnetic sources,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to look better,
Neodymium magnets create maximum magnetic induction on a small surface, which ensures high operational effectiveness,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
Possibility of precise creating as well as modifying to specific conditions,
Fundamental importance in modern industrial fields – they serve a role in computer drives, electric drive systems, medical equipment, as well as technologically advanced constructions.
Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
Neodymium magnets decrease 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 durability even at temperatures up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
We suggest casing - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated shapes.
Possible danger to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, tiny parts of these devices can complicate diagnosis medical in case of swallowing.
With large orders the cost of neodymium magnets is a challenge,

Lifting parameters

Highest magnetic holding force – what contributes to it?

The load parameter shown refers to the peak performance, obtained under ideal test conditions, namely:

using a plate made of high-permeability steel, functioning as a magnetic yoke
with a thickness minimum 10 mm
with a surface free of scratches
under conditions of gap-free contact (surface-to-surface)
for force applied at a right angle (in the magnet axis)
at standard ambient temperature

Lifting capacity in practice – influencing factors

Real force impacted by working environment parameters, mainly (from priority):

Distance – existence of any layer (paint, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Base massiveness – too thin plate does not accept the full field, causing part of the flux to be lost into the air.
Material composition – different alloys reacts the same. High carbon content weaken the attraction effect.
Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Thermal conditions – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.

Warnings

This is not a toy

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Keep away from children and animals.

Bone fractures

Protect your hands. Two powerful magnets will join instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!

Medical implants

Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Safe distance

Device Safety: Neodymium magnets can ruin data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).

Shattering risk

Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Phone sensors

GPS units and mobile phones are highly susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.

Skin irritation risks

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If skin irritation appears, immediately stop handling magnets and use protective gear.

Handling guide

Be careful. Neodymium magnets act from a distance and snap with massive power, often quicker than you can move away.

Operating temperature

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and pulling force.

Dust explosion hazard

Machining of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Caution! Learn more about hazards in the article: Magnet Safety Guide.

UMH 48x11x65 [M6] / N38 - magnetic holder with hook

Technical data of the product - UMH 48x11x65 [M6] / N38 - magnetic holder with hook

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Elemental analysis

Ecology and recycling (GPSR)

Force (pull)

Field Strength

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Advantages as well as disadvantages of neodymium magnets.

Strengths

Cons

Lifting parameters

Highest magnetic holding force – what contributes to it?

Lifting capacity in practice – influencing factors

Warnings

This is not a toy

Bone fractures

Medical implants

Safe distance

Shattering risk

Phone sensors

Skin irritation risks

Handling guide

Operating temperature

Dust explosion hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C