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neodymium magnets

We provide blue color magnets Nd2Fe14B - our proposal. Practically all magnesy neodymowe on our website are in stock for immediate purchase (check the list). Check out the magnet price list for more details see the magnet price list

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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

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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

Holders with a hook are indispensable in large-format stores and warehouses for suspending advertisements (POS systems). You can use them to organize wires, hang tools, or clothes on metal racks.
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., 112 kg) refers to perpendicular (vertical) force when mounted on the ceiling. For heavy ceiling ads or tools, we recommend choosing a magnet with a considerable power reserve.
The steel housing (cup) shields the magnetic field, directing all its power downwards, onto the contact surface. 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. If you are looking for an outdoor hanger, choose a model in rubberized or plastic housing, which is tight.

Advantages and disadvantages of NdFeB magnets.

Besides their remarkable pulling force, neodymium magnets offer the following advantages:

  • Their power is maintained, and after around ten years it drops only by ~1% (theoretically),
  • Neodymium magnets are exceptionally resistant to loss of magnetic properties caused by magnetic disturbances,
  • By applying a decorative coating of nickel, the element has an modern look,
  • Magnetic induction on the working part of the magnet remains exceptional,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to freedom in constructing and the ability to customize to individual projects,
  • Universal use in modern industrial fields – they serve a role in magnetic memories, electromotive mechanisms, diagnostic systems, and complex engineering applications.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals

  • To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • We warn that neodymium magnets can reduce 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 rust. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in producing threads and complicated forms in magnets, we propose using cover - magnetic mechanism.
  • Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Furthermore, tiny parts of these products can be problematic in diagnostics medical after entering the body.
  • With large orders the cost of neodymium magnets is a challenge,

Magnetic strength at its maximum – what it depends on?

The specified lifting capacity concerns the peak performance, recorded under laboratory conditions, meaning:

  • with the use of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • with a cross-section minimum 10 mm
  • with an polished touching surface
  • with total lack of distance (without coatings)
  • for force acting at a right angle (pull-off, not shear)
  • in stable room temperature

Practical aspects of lifting capacity – factors

During everyday use, the actual lifting capacity results from several key aspects, listed from most significant:

  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
  • Steel thickness – insufficiently thick steel causes magnetic saturation, causing part of the flux to be escaped to the other side.
  • Material composition – different alloys reacts the same. High carbon content worsen the interaction with the magnet.
  • Base smoothness – the more even the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
  • Thermal environment – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

* Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a small distance {between} the magnet and the plate lowers the load capacity.

Warnings

Flammability

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Magnets are brittle

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

No play value

Neodymium magnets are not suitable for play. Eating a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and requires urgent medical intervention.

Implant safety

Warning for patients: Strong magnetic fields disrupt electronics. Maintain at least 30 cm distance or request help to handle the magnets.

Bodily injuries

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

Caution required

Use magnets consciously. Their powerful strength can shock even experienced users. Plan your moves and do not underestimate their force.

Magnetic media

Do not bring magnets close to a purse, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Nickel coating and allergies

Medical facts indicate that nickel (standard magnet coating) is a common allergen. For allergy sufferers, refrain from touching magnets with bare hands and select encased magnets.

Threat to navigation

A powerful magnetic field disrupts the functioning of magnetometers in smartphones and navigation systems. Maintain magnets close to a smartphone to avoid damaging the sensors.

Maximum temperature

Keep cool. Neodymium magnets are susceptible to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

Attention!

Need more info? Check our post: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98