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UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180419

GTIN/EAN: 5906301813781

5.00

Diameter Ø

60 mm [±1 mm]

Height

30 mm [±1 mm]

Height

15 mm [±1 mm]

Weight

260 g

Magnetization Direction

↑ axial

Load capacity

112.00 kg / 1098.34 N

Coating

[NiCuNi] Nickel

check technical specifications »

102.96 ZŁ with VAT / pcs + price for transport

83.71 ZŁ net + 23% VAT / pcs

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Technical details - UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

Specification / characteristics - UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

properties
properties values
Cat. no. 180419
GTIN/EAN 5906301813781
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 60 mm [±1 mm]
Height 30 mm [±1 mm]
Height 15 mm [±1 mm]
Weight 260 g
Magnetization Direction ↑ axial
Load capacity ~ ? 112.00 kg / 1098.34 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread
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
Chemical composition
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: 180419-2026
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Force (pull)
Magnetic Induction
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A magnetic holder (magnet in a steel cup) is much stronger on one side than a bare magnet of the same dimensions. The metal cover secures the magnet against mechanical damage, which is common in workshop conditions. The bushing with internal thread allows easy screwing of any element (bolt, hook, handle).
Too long a screw can pass through the bushing and push out or damage the magnet glued into the bottom of the cup. We recommend checking thread depth before assembly and shortening the screw if necessary. You can use a spacer washer or lock nut to limit screwing depth.
These holders are commonly used in industry, advertising, and construction for quick mounting. They allow mounting without drilling in steel substrate, which is crucial in rented spaces. Ideal for fixing lighting on machine tools and welding tables.
The stated force is the maximum laboratory value obtained on a clean, smooth sheet. On a thin surface or painted cabinet, the magnet will hold much weaker (even by 50-70%). We always recommend choosing a magnet with power reserve, especially if the surface is not ideal.
Steel cups are usually coated with a layer of nickel (shiny) or zinc (matte/bright), providing basic protection. However, these are not fully stainless products and may corrode with constant contact with water. The whole is well protected for standard workshop and industrial applications.

Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Apart from their superior power, neodymium magnets have these key benefits:
  • Their magnetic field is durable, and after around ten years it drops only by ~1% (according to research),
  • They have excellent resistance to magnetism drop due to external fields,
  • By using a smooth layer of silver, the element has an nice look,
  • Magnetic induction on the top side of the magnet is extremely intense,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of exact shaping and optimizing to atypical conditions,
  • Key role in modern industrial fields – they are used in hard drives, electric drive systems, medical devices, also multitasking production systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • Neodymium magnets decrease their power 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 durability even at temperatures up to 230°C
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • Limited ability of producing nuts in the magnet and complex shapes - recommended is a housing - magnetic holder.
  • Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Maximum lifting capacity of the magnet – what affects it?

The lifting capacity listed is a theoretical maximum value executed under the following configuration:
  • using a base made of high-permeability steel, functioning as a ideal flux conductor
  • with a cross-section minimum 10 mm
  • characterized by lack of roughness
  • with direct contact (no impurities)
  • under perpendicular force vector (90-degree angle)
  • at standard ambient temperature

Lifting capacity in real conditions – factors

It is worth knowing that the magnet holding may be lower depending on elements below, starting with the most relevant:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – insufficiently thick sheet causes magnetic saturation, causing part of the flux to be escaped to the other side.
  • Material type – ideal substrate is high-permeability steel. Stainless steels may have worse magnetic properties.
  • Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Safe handling of NdFeB magnets
Heat warning

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. This process is irreversible.

Pacemakers

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Skin irritation risks

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction happens, immediately stop working with magnets and use protective gear.

Dust explosion hazard

Dust created during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.

Electronic hazard

Do not bring magnets near a purse, computer, or screen. The magnetic field can destroy these devices and wipe information from cards.

Beware of splinters

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Immense force

Handle with care. Neodymium magnets act from a long distance and connect with massive power, often faster than you can react.

Bodily injuries

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

Keep away from electronics

Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can ruin the internal compass in your phone.

Swallowing risk

These products are not intended for children. Accidental ingestion of multiple magnets can lead to them attracting across intestines, which constitutes a critical condition and requires immediate surgery.

Danger! Learn more about risks in the article: Magnet Safety Guide.