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UMGB 75x28 [M8+M10] GW F200 +Lina GOBLIN / N38 - goblin magnetic holder

goblin magnetic holder

Catalog no 350436

GTIN/EAN: 5906301814788

5.00
Load capacity 280.00 kg / 2745.86 N
Diameter Ø
75 mm [±1 mm]
Height
28 mm [±1 mm]
Weight
900 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel
technical details »

215.00 zł with VAT / pcs + price for transport

174.80 zł net + 23% VAT / pcs

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Product card - UMGB 75x28 [M8+M10] GW F200 +Lina GOBLIN / N38 - goblin magnetic holder

Specification / characteristics - UMGB 75x28 [M8+M10] GW F200 +Lina GOBLIN / N38 - goblin magnetic holder

properties
properties values
Cat. no. 350436
GTIN/EAN 5906301814788
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 75 mm [±1 mm]
Height 28 mm [±1 mm]
Weight 900 g
Magnetization Direction ↑ axial
Load capacity ~ ? 280.00 kg / 2745.86 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGB 75x28 [M8+M10] GW F200 +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: 350436-2026
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Pros as well as cons of Nd2Fe14B magnets.

Strengths

Besides their remarkable strength, neodymium magnets offer the following advantages:
  • Their magnetic field is maintained, and after around ten years it drops only by ~1% (according to research),
  • They retain their magnetic properties even under close interference source,
  • By applying a smooth layer of silver, the element gains an proper look,
  • Neodymium magnets create maximum magnetic induction on a small area, which allows for strong attraction,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Possibility of exact shaping and adjusting to precise conditions,
  • Key role in future technologies – they are commonly used in computer drives, motor assemblies, precision medical tools, also complex engineering applications.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Disadvantages of NdFeB magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises their durability
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Limited possibility of creating nuts in the magnet and complicated shapes - preferred is cover - mounting mechanism.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products are able to disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Lifting parameters

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

Information about lifting capacity was determined for ideal contact conditions, taking into account:
  • with the contact of a sheet made of special test steel, ensuring maximum field concentration
  • with a thickness no less than 10 mm
  • characterized by even structure
  • without any air gap between the magnet and steel
  • for force applied at a right angle (in the magnet axis)
  • at room temperature

Practical aspects of lifting capacity – factors

It is worth knowing that the working load will differ depending on elements below, starting with the most relevant:
  • Air gap (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Metal type – different alloys reacts the same. High carbon content weaken the attraction effect.
  • Smoothness – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
  • Thermal environment – temperature increase causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Warnings
Do not drill into magnets

Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this may cause fire.

Phone sensors

Note: neodymium magnets generate a field that disrupts sensitive sensors. Keep a safe distance from your mobile, tablet, and navigation systems.

Safe operation

Use magnets consciously. Their huge power can shock even professionals. Stay alert and respect their power.

Do not give to children

Adult use only. Tiny parts pose a choking risk, causing intestinal necrosis. Store out of reach of children and animals.

Allergic reactions

It is widely known that nickel (the usual finish) is a common allergen. If you have an allergy, refrain from direct skin contact and select coated magnets.

Electronic hazard

Very strong magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.

Health Danger

For implant holders: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Finger safety

Pinching hazard: The pulling power is so great that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.

Maximum temperature

Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.

Eye protection

NdFeB magnets are ceramic materials, which means they are very brittle. Collision of two magnets leads to them breaking into small pieces.

Warning! Looking for details? Read our article: Why are neodymium magnets dangerous?