UMH 42x9x46 [M6] / N38 - magnetic holder with hook

UMH 42x9x46 [M6] / N38 - magnetic holder with hook - ujęcie 2

Product available Ships tomorrow

UMH 42x9x46 [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 310429

GTIN/EAN: 5906301814580

5.00

Diameter Ø

42 mm [±1 mm]

Height

46 mm [±1 mm]

Height

9 mm [±1 mm]

Weight

90 g

Magnetization Direction

↑ axial

Load capacity

66.00 kg / 647.24 N

Coating

[NiCuNi] Nickel

product parameters »

35.99 ZŁ with VAT / pcs + price for transport

29.26 ZŁ net + 23% VAT / pcs

bulk discounts:

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Call us now +48 22 499 98 98 otherwise send us a note by means of inquiry form the contact page.
Weight as well as appearance of a neodymium magnet can be tested with our modular calculator.

Same-day processing for orders placed before 14:00.

Technical - UMH 42x9x46 [M6] / N38 - magnetic holder with hook

Specification / characteristics - UMH 42x9x46 [M6] / N38 - magnetic holder with hook

properties

properties	values
Cat. no.	310429
GTIN/EAN	5906301814580
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	42 mm [±1 mm]
Height	46 mm [±1 mm]
Height	9 mm [±1 mm]
Weight	90 g
Magnetization Direction	↑ axial
Load capacity ~ ?	66.00 kg / 647.24 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 42x9x46 [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

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: 310429-2026

Magnet Unit Converter

Pulling force

Force in kg

Force (N)

Pounds (lbs)

Magnetic Induction

Induction (Gs)

Induction (T)

Enter your figure in one of the inputs, and the rest will recalculate automatically.

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395.40 ZŁ brutto / pcs

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UMC 60x9/5x15 / N38 - cylindrical magnetic holder

64.94 ZŁ brutto / pcs

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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.

The nominal capacity (e.g., 66.00 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).

The steel housing (cup) shields the magnetic field, directing all its power downwards, onto the contact surface. Additionally, steel protects the brittle magnet from cracking upon hitting the ceiling or beam.

Standard holders are coated with a layer of nickel or zinc, which protects them from corrosion indoors. In home and office conditions, they will serve for many years without signs of wear.

Strengths and weaknesses of rare earth magnets.

Strengths

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

Their magnetic field is durable, and after approximately ten years it decreases only by ~1% (theoretically),
They feature excellent resistance to weakening of magnetic properties due to external magnetic sources,
By using a decorative layer of silver, the element gains an proper look,
Neodymium magnets generate maximum magnetic induction on a small area, which allows for strong attraction,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Thanks to versatility in designing and the capacity to modify to complex applications,
Versatile presence in electronics industry – they serve a role in data components, brushless drives, diagnostic systems, and technologically advanced constructions.
Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in miniature devices

Disadvantages

Disadvantages of neodymium magnets:

At very strong impacts they can break, therefore we recommend placing them in special holders. 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 and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
Limited possibility of making nuts in the magnet and complex forms - preferred is cover - mounting mechanism.
Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these devices can be problematic in diagnostics medical after entering the body.
Due to expensive raw materials, their price is relatively high,

Lifting parameters

Maximum holding power of the magnet – what affects it?

Information about lifting capacity was defined for the most favorable conditions, including:

using a plate made of high-permeability steel, serving as a magnetic yoke
whose transverse dimension equals approx. 10 mm
with an polished contact surface
under conditions of gap-free contact (metal-to-metal)
during pulling in a direction perpendicular to the mounting surface
in temp. approx. 20°C

What influences lifting capacity in practice

It is worth knowing that the application force will differ depending on the following factors, starting with the most relevant:

Distance – existence of any layer (rust, tape, gap) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
Direction of force – highest force is reached only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
Steel thickness – too thin steel causes magnetic saturation, causing part of the power to be lost into the air.
Plate material – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and lifting capacity.
Smoothness – full contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
Thermal factor – high temperature weakens pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Additionally, even a small distance between the magnet and the plate decreases the holding force.

H&S for magnets

Operating temperature

Do not overheat. Neodymium magnets are susceptible to temperature. If you need operation above 80°C, ask us about HT versions (H, SH, UH).

Dust is flammable

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

GPS and phone interference

GPS units and mobile phones are highly susceptible to magnetic fields. Direct contact with a strong magnet can permanently damage the sensors in your phone.

Handling guide

Handle magnets with awareness. Their powerful strength can surprise even professionals. Stay alert and respect their force.

Threat to electronics

Do not bring magnets close to a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Medical implants

Individuals with a pacemaker have to maintain an absolute distance from magnets. The magnetic field can interfere with the operation of the implant.

Material brittleness

Protect your eyes. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.

Avoid contact if allergic

Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness happens, immediately stop handling magnets and wear gloves.

Hand protection

Risk of injury: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.

Adults only

Product intended for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Store away from children and animals.

Caution! Looking for details? Check our post: Are neodymium magnets dangerous?

UMH 42x9x46 [M6] / N38 - magnetic holder with hook

Technical - UMH 42x9x46 [M6] / N38 - magnetic holder with hook

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Elemental analysis

Environmental data

Pulling force

Magnetic Induction

View also products

MPL 10x10x10 / N38 - lamellar magnet

MW 70x40 / N38 - cylindrical magnet

UMC 60x9/5x15 / N38 - cylindrical magnetic holder

MP 5x1.5x3 / N38 - ring magnet

Strengths and weaknesses of rare earth magnets.

Strengths

Disadvantages

Lifting parameters

Maximum holding power of the magnet – what affects it?

What influences lifting capacity in practice

H&S for magnets

Operating temperature

Dust is flammable

GPS and phone interference

Handling guide

Threat to electronics

Medical implants

Material brittleness

Avoid contact if allergic

Hand protection

Adults only

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C