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UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder

goblin magnetic holder

Catalog no 350438

GTIN/EAN: 5906301814801

5.00
Load capacity 480.00 kg / 4707.19 N
Diameter Ø
107 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
2350 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
technical parameters »

435.24 zł with VAT / pcs + price for transport

353.85 zł net + 23% VAT / pcs

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Force and form of a neodymium magnet can be calculated on our modular calculator.

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Detailed specification - UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder

Specification / characteristics - UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder

properties
properties values
Cat. no. 350438
GTIN/EAN 5906301814801
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 107 mm [±1 mm]
Height 40 mm [±1 mm]
Weight 2350 g
Magnetization Direction ↑ axial
Load capacity ~ ? 480.00 kg / 4707.19 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGB 107x40 [M8+M10] GW F400 +Lina GOBLIN / N38 - goblin magnetic holder
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

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
Engineering data and GPSR

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: 350438-2026
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Advantages and disadvantages of rare earth magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:
  • Their strength is maintained, and after around 10 years it drops only by ~1% (according to research),
  • They possess excellent resistance to magnetic field loss when exposed to external fields,
  • Thanks to the shimmering finish, the coating of Ni-Cu-Ni, gold-plated, or silver-plated gives an aesthetic appearance,
  • Magnets are distinguished by maximum magnetic induction on the working surface,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
  • In view of the option of free molding and adaptation to individualized needs, neodymium magnets can be produced in a broad palette of forms and dimensions, which amplifies use scope,
  • Versatile presence in future technologies – they serve a role in magnetic memories, electromotive mechanisms, medical devices, and technologically advanced constructions.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Cons

Characteristics of disadvantages of neodymium magnets: tips and applications.
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating nuts and complicated forms in magnets, we recommend using a housing - magnetic mechanism.
  • Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these devices are able to complicate diagnosis medical when they are in the body.
  • Due to neodymium price, their price exceeds standard values,

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what it depends on?

Information about lifting capacity is the result of a measurement for the most favorable conditions, including:
  • with the contact of a sheet made of low-carbon steel, ensuring full magnetic saturation
  • whose transverse dimension reaches at least 10 mm
  • characterized by even structure
  • under conditions of gap-free contact (surface-to-surface)
  • during pulling in a direction vertical to the mounting surface
  • at temperature room level

Determinants of practical lifting force of a magnet

In practice, the actual holding force results from several key aspects, presented from crucial:
  • Air gap (betwixt the magnet and the plate), because even a microscopic distance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
  • Angle of force application – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
  • Steel grade – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
  • Surface finish – ideal contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Precautions when working with NdFeB magnets
Impact on smartphones

A powerful magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Keep magnets near a smartphone to avoid breaking the sensors.

Conscious usage

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Adults only

Neodymium magnets are not intended for children. Swallowing multiple magnets may result in them attracting across intestines, which constitutes a direct threat to life and necessitates urgent medical intervention.

Finger safety

Big blocks can break fingers in a fraction of a second. Never put your hand between two attracting surfaces.

Eye protection

Protect your eyes. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Keep away from computers

Do not bring magnets close to a wallet, laptop, or screen. The magnetic field can destroy these devices and wipe information from cards.

Power loss in heat

Avoid heat. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).

Do not drill into magnets

Combustion risk: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.

Allergic reactions

It is widely known that nickel (the usual finish) is a strong allergen. If your skin reacts to metals, avoid direct skin contact or select encased magnets.

Pacemakers

People with a pacemaker have to maintain an large gap from magnets. The magnetism can disrupt the operation of the implant.

Attention! Details about hazards in the article: Safety of working with magnets.