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neodymium magnets

We provide blue color magnets Nd2Fe14B - our store's offer. Practically all magnesy on our website are in stock for immediate delivery (check the list). Check out the magnet pricing for more details check the magnet price list

Magnets for water searching F300 GOLD

Where to purchase powerful neodymium magnet? Magnet holders in airtight and durable steel enclosure are perfect for use in difficult, demanding weather conditions, including during snow and rain see more

magnetic holders

Holders with magnets can be applied to enhance manufacturing, exploring underwater areas, or locating meteors made of ore see...

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UMH 60x15x69 [M8] / N38 - magnetic holder with hook

magnetic holder with hook

Catalog no 310431

GTIN: 5906301814603

5

Diameter Ø [±0,1 mm]

60 mm

Height [±0,1 mm]

69 mm

Height [±0,1 mm]

15 mm

Weight

300 g

Magnetization Direction

↑ axial

Load capacity

112 kg / 1098.34 N

Coating

[NiCuNi] nickel

143.91 with VAT / pcs + price for transport

117.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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Lifting power along with form of magnetic components can be verified with our force calculator.

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UMH 60x15x69 [M8] / N38 - magnetic holder with hook
Specification/characteristics UMH 60x15x69 [M8] / N38 - magnetic holder with hook
properties
values
Cat. no.
310431
GTIN
5906301814603
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
60 mm [±0,1 mm]
Height
69 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
300 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
112 kg / 1098.34 N
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

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

Shopping tips

A hook magnet is an ideal solution for quick mounting of banners, signs, and markings on steel ceiling structures. You can use them to organize wires, hang tools, or clothes on metal racks.
The magnet has a standard threaded socket, which allows replacing the hook with any other accessory with a thread. Check the thread size in the product specification to select matching replacements.
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).
Thanks to the metal cover, attraction force is concentrated, which significantly increases capacity compared to a bare magnet. Additionally, steel protects the brittle magnet from cracking upon hitting the ceiling or beam.
In the bathroom or kitchen, they will work perfectly, provided they are not directly splashed with water. If you are looking for an outdoor hanger, choose a model in rubberized or plastic housing, which is tight.

Strengths as well as weaknesses of neodymium magnets.

Besides their stability, neodymium magnets are valued for these benefits:

  • They retain full power for almost ten years – the loss is just ~1% (in theory),
  • They have excellent resistance to magnetic field loss as a result of opposing magnetic fields,
  • In other words, due to the reflective layer of silver, the element looks attractive,
  • Magnets have extremely high magnetic induction on the outer side,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of custom shaping and modifying to precise applications,
  • Key role in future technologies – they are utilized in hard drives, electric motors, medical devices, as well as modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in small systems

Problematic aspects of neodymium magnets: application proposals

  • Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also increases their durability
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Limited ability of creating nuts in the magnet and complicated forms - preferred is a housing - mounting mechanism.
  • Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Additionally, small elements of these magnets can complicate diagnosis medical after entering the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Maximum lifting force for a neodymium magnet – what it depends on?

Breakaway force was defined for ideal contact conditions, taking into account:

  • on a block made of structural steel, effectively closing the magnetic field
  • whose transverse dimension reaches at least 10 mm
  • with an ground contact surface
  • with zero gap (no impurities)
  • for force applied at a right angle (pull-off, not shear)
  • at room temperature

Practical aspects of lifting capacity – factors

Effective lifting capacity impacted by working environment parameters, such as (from most important):

  • Space between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Plate material – mild steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
  • Smoothness – full contact is obtained only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Thermal environment – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

* Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the lifting capacity is smaller. Additionally, even a slight gap {between} the magnet’s surface and the plate reduces the lifting capacity.

H&S for magnets

Bone fractures

Risk of injury: The pulling power is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

Allergic reactions

Nickel alert: The nickel-copper-nickel coating consists of nickel. If an allergic reaction occurs, cease handling magnets and wear gloves.

Protect data

Very strong magnetic fields can destroy records on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Mechanical processing

Powder produced during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.

Choking Hazard

Strictly keep magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are very dangerous.

Health Danger

For implant holders: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.

Do not overheat magnets

Control the heat. Exposing the magnet to high heat will ruin its magnetic structure and strength.

Magnet fragility

Beware of splinters. Magnets can fracture upon violent connection, launching shards into the air. We recommend safety glasses.

Phone sensors

Be aware: rare earth magnets produce a field that confuses sensitive sensors. Maintain a separation from your mobile, tablet, and navigation systems.

Caution required

Handle magnets consciously. Their immense force can surprise even professionals. Stay alert and do not underestimate their force.

Security!

Need more info? Check our post: Why are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98