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UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread

magnetic holder external thread

Catalog no 190324

GTIN/EAN: 5906301813835

5.00

Diameter Ø

32 mm [±1 mm]

Height

18 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

40 g

Load capacity

34.00 kg / 333.43 N

Coating

[NiCuNi] Nickel

view technical specifications »

17.98 ZŁ with VAT / pcs + price for transport

14.62 ZŁ net + 23% VAT / pcs

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Technical details - UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread

Specification / characteristics - UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread

properties
properties values
Cat. no. 190324
GTIN/EAN 5906301813835
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 32 mm [±1 mm]
Height 18 mm [±1 mm]
Height 8 mm [±1 mm]
Weight 40 g
Load capacity ~ ? 34.00 kg / 333.43 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external 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 and environmental data
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%
Sustainability
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: 190324-2026
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This type of holder has a integrated threaded stud (screw), making it ideal for mounting in through holes. Mounting consists of inserting the screw into the hole and securing with a nut (e.g., wing nut). They are commonly used in machine building, exhibition stands, lighting, and advertising.
The threaded stud is an integral part of the steel housing, but avoid overtightening the thread. Do not use the magnet as a structural bolt transferring huge mechanical loads in shear. The magnet itself is protected by a steel cup and is very resistant to impact.
Maximum operating temperature is 80 degrees Celsius for the standard version. For furnaces, dryers, and powder coating shops, we recommend other types of magnets. Remember that even momentary overheating can weaken the holder.
We use standardized threads that fit typical nuts available in every store. Exact screw dimensions can be found in the product technical table. It is a solid threaded connection, ready for use.
The magnetic system in a cup is more energy-efficient than the magnet itself of the same dimensions. This force drops very quickly with increasing distance (air gap).

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

Apart from their consistent power, neodymium magnets have these key benefits:
  • They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
  • Magnets very well resist against demagnetization caused by foreign field sources,
  • In other words, due to the smooth layer of silver, the element becomes visually attractive,
  • They feature high magnetic induction at the operating surface, which increases their power,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to freedom in constructing and the capacity to adapt to unusual requirements,
  • Fundamental importance in high-tech industry – they serve a role in hard drives, drive modules, medical equipment, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in small systems

Limitations

Problematic aspects of neodymium magnets: weaknesses and usage proposals
  • At very strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Limited ability of creating nuts in the magnet and complicated shapes - preferred is cover - magnetic holder.
  • Possible danger related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that tiny parts of these devices are able to complicate diagnosis medical when they are in the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

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

The force parameter is a theoretical maximum value executed under standard conditions:
  • using a base made of low-carbon steel, functioning as a ideal flux conductor
  • whose transverse dimension reaches at least 10 mm
  • characterized by lack of roughness
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction vertical to the mounting surface
  • at ambient temperature room level

Determinants of practical lifting force of a magnet

Bear in mind that the working load may be lower influenced by elements below, starting with the most relevant:
  • Clearance – existence of foreign body (rust, tape, gap) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Direction of force – maximum parameter is available only during pulling at a 90° angle. The shear force of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets
Sensitization to coating

A percentage of the population have a hypersensitivity to nickel, which is the typical protective layer for NdFeB magnets. Extended handling may cause an allergic reaction. We suggest use protective gloves.

Magnetic interference

Note: neodymium magnets generate a field that confuses sensitive sensors. Keep a safe distance from your phone, tablet, and GPS.

Physical harm

Large magnets can smash fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.

Protect data

Intense magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Medical interference

For implant holders: Powerful magnets affect electronics. Maintain minimum 30 cm distance or request help to work with the magnets.

Product not for children

These products are not intended for children. Swallowing multiple magnets can lead to them connecting inside the digestive tract, which constitutes a severe health hazard and requires immediate surgery.

Eye protection

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

Do not overheat magnets

Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Powerful field

Use magnets consciously. Their immense force can shock even professionals. Plan your moves and do not underestimate their force.

Dust is flammable

Fire hazard: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

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