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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

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

435.24 with VAT / pcs + price for transport

353.85 ZŁ net + 23% VAT / pcs

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Physical properties - 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
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%
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: 350438-2026
Measurement Calculator
Magnet pull force

Magnetic Field

See also deals

Pros and cons of neodymium magnets.

Advantages

Apart from their notable magnetism, neodymium magnets have these key benefits:
  • They do not lose power, even during nearly 10 years – the reduction in strength is only ~1% (according to tests),
  • They do not lose their magnetic properties even under external field action,
  • By using a lustrous coating of nickel, the element has an professional look,
  • They feature high magnetic induction at the operating surface, which affects their effectiveness,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling operation at temperatures approaching 230°C and above...
  • Thanks to the possibility of free shaping and adaptation to unique solutions, magnetic components can be produced in a broad palette of shapes and sizes, which amplifies use scope,
  • Universal use in innovative solutions – they are used in HDD drives, electric drive systems, precision medical tools, also technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Limitations

Cons of neodymium magnets: application proposals
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets decrease their strength 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 stability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • We recommend a housing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child safety. Additionally, small elements of these magnets can complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Best holding force of the magnet in ideal parameterswhat contributes to it?

Information about lifting capacity was determined for the most favorable conditions, taking into account:
  • on a plate made of structural steel, effectively closing the magnetic field
  • with a cross-section no less than 10 mm
  • with an ideally smooth contact surface
  • under conditions of gap-free contact (metal-to-metal)
  • for force acting at a right angle (pull-off, not shear)
  • at standard ambient temperature

Determinants of practical lifting force of a magnet

Effective lifting capacity impacted by working environment parameters, such as (from priority):
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Angle of force application – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
  • Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal reduce efficiency.
  • Thermal factor – high temperature weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under shearing force the holding force is lower. In addition, even a small distance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets
Flammability

Fire warning: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.

Handling rules

Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.

Product not for children

Only for adults. Tiny parts pose a choking risk, causing serious injuries. Store out of reach of kids and pets.

Maximum temperature

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

GPS and phone interference

Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can ruin the sensors in your phone.

Magnetic media

Equipment safety: Neodymium magnets can ruin payment cards and sensitive devices (heart implants, hearing aids, mechanical watches).

Magnets are brittle

Protect your eyes. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Sensitization to coating

Some people suffer from a contact allergy to nickel, which is the typical protective layer for NdFeB magnets. Extended handling might lead to an allergic reaction. It is best to use protective gloves.

ICD Warning

For implant holders: Powerful magnets affect medical devices. Keep at least 30 cm distance or ask another person to handle the magnets.

Serious injuries

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

Danger! Learn more about risks in the article: Safety of working with magnets.