← previous
next →
Product available Ships tomorrow

UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180319

GTIN/EAN: 5906301813750

5.00

Diameter Ø

36 mm [±1 mm]

Height

18 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

52 g

Magnetization Direction

↑ axial

Load capacity

40.00 kg / 392.27 N

Coating

[NiCuNi] Nickel

see parameters »

23.99 ZŁ with VAT / pcs + price for transport

19.50 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
19.50 ZŁ
23.99 ZŁ
price from 20 pcs
18.33 ZŁ
22.55 ZŁ
price from 80 pcs
17.16 ZŁ
21.11 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Can't decide what to choose?

Call us now +48 22 499 98 98 if you prefer get in touch through contact form the contact section.
Parameters along with appearance of magnetic components can be analyzed using our power calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical data - UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

Specification / characteristics - UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

properties
properties values
Cat. no. 180319
GTIN/EAN 5906301813750
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 36 mm [±1 mm]
Height 18 mm [±1 mm]
Height 8 mm [±1 mm]
Weight 52 g
Magnetization Direction ↑ axial
Load capacity ~ ? 40.00 kg / 392.27 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGW 36x18x8 [M8] 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
Technical specification and ecology
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%
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: 180319-2026
Measurement Calculator
Pulling force
Field Strength
Simply populate one field, to let the converter calculate everything else instantly.

View also deals

SM 32x400 [2xM8] / N42 - magnetic separator
Product available Ships tomorrow

SM 32x400 [2xM8] / N42 - magnetic separator

1340.70 ZŁ brutto / pcs
UMP 107x40 [M8+M10] GW F400 Lina / N38 - search holder
Product available Ships tomorrow

UMP 107x40 [M8+M10] GW F400 Lina / N38 - search holder

450.00 ZŁ brutto / pcs
MW 9.5x1 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 9.5x1 / N38 - cylindrical magnet

0.295 ZŁ brutto / pcs
SM 32x425 [2xM8] / N52 - magnetic separator
Product available Ships tomorrow

SM 32x425 [2xM8] / N52 - magnetic separator

1463.70 ZŁ brutto / pcs
A magnetic holder (magnet in a steel cup) is much stronger on one side than a bare magnet of the same dimensions. Thanks to this, the holder is more durable, resistant, and safer to mount. The bushing with internal thread allows easy screwing of any element (bolt, hook, handle).
Care must be taken not to screw the bolt too deep into the magnet bushing. We recommend checking thread depth before assembly and shortening the screw if necessary. It is worth securing the thread with thread glue if the connection is to be durable and resistant to vibrations.
They are indispensable when building exhibition stands and shop displays (POS systems). They serve as a base for hooks, cable holders, organizers, and lighting systems. In the workshop, they can serve as mounting points for tools or measuring instruments.
The stated force is the maximum laboratory value obtained on a clean, smooth sheet. Air gap (rust, paint, dirt) also drastically lowers holding power. We always recommend choosing a magnet with power reserve, especially if the surface is not ideal.
The housing has anti-corrosion protection in the form of galvanic zinc or nickel plating. In rain and frost, the coating may degrade over time if not protected. The neodymium magnet itself inside is also nickel-plated.

Strengths and weaknesses of Nd2Fe14B magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:
  • They do not lose power, even during around 10 years – the decrease in lifting capacity is only ~1% (theoretically),
  • They are extremely resistant to demagnetization induced by external disturbances,
  • In other words, due to the smooth finish of nickel, the element gains visual value,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • 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 modularity in constructing and the capacity to adapt to specific needs,
  • Universal use in high-tech industry – they are commonly used in data components, motor assemblies, diagnostic systems, and technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in compact constructions

Cons

Disadvantages of NdFeB magnets:
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
  • Neodymium magnets lose 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 durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in creating nuts and complicated shapes in magnets, we recommend using a housing - magnetic mount.
  • Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these products can disrupt the diagnostic process medical after entering 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 holding power of the magnet – what affects it?

Information about lifting capacity was determined for the most favorable conditions, taking into account:
  • on a block made of structural steel, effectively closing the magnetic flux
  • with a cross-section no less than 10 mm
  • characterized by lack of roughness
  • under conditions of no distance (surface-to-surface)
  • under axial force vector (90-degree angle)
  • in temp. approx. 20°C

Lifting capacity in real conditions – factors

Bear in mind that the working load may be lower depending on elements below, starting with the most relevant:
  • Clearance – the presence of foreign body (rust, tape, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
  • Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Plate material – mild steel attracts best. Alloy steels lower magnetic properties and lifting capacity.
  • Smoothness – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Thermal environment – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was measured using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate lowers the holding force.

Safe handling of NdFeB magnets
Data carriers

Data protection: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, mechanical watches).

Heat sensitivity

Control the heat. Heating the magnet to high heat will permanently weaken its magnetic structure and strength.

Physical harm

Watch your fingers. Two powerful magnets will join instantly with a force of massive weight, destroying everything in their path. Be careful!

Shattering risk

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Keep away from children

Absolutely keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are fatal.

Handling rules

Exercise caution. Neodymium magnets act from a long distance and snap with huge force, often faster than you can react.

Compass and GPS

GPS units and mobile phones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Combustion hazard

Powder created during machining of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.

Skin irritation risks

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness appears, immediately stop working with magnets and use protective gear.

Pacemakers

For implant holders: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.

Attention! Details about risks in the article: Magnet Safety Guide.