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UMGZ 36x18x8 [M6] GZ / N38 - magnetic holder external thread

magnetic holder external thread

Catalog no 190325

GTIN/EAN: 5906301813842

5.00
Load capacity 40.00 kg / 392.27 N
Diameter Ø
36 mm [±1 mm]
Height
18 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
50 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

product parameters »

20.30 zł net / pcs

24.97 zł with VAT (23% VAT) / pcs

price for transport

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Gross
price from 1 pcs
20.30 zł
24.97 zł
price from 20 pcs
19.08 zł
23.47 zł
price from 40 pcs
17.86 zł
21.97 zł

Frequently asked questions

Which magnetic holder is suitable for moving metal parts in a workshop?
Choose a device designed for the intended handling task and check its rated conditions, attachment point and the steel being gripped. A basic permanent-magnet holder is not a certified device for lifting a load over people.
How do I choose a holder for hanging a heavy item and check its real grip?
Compare the catalogue pull rating with the actual steel thickness, surface condition, gap and load direction. Grip along a vertical surface differs from perpendicular pull. Add an independent mechanical safeguard where falling would cause harm.
Which magnetic holders can be used outdoors?
Check the coating, housing and permitted operating conditions on the individual product card. Rubber can help protect a painted surface, but do not assume that every holder is suitable for permanent immersion or salt spray.
How should I choose a strong threaded holder for field work?
Select an internal or external thread to match the part being attached. Then check the holder dimensions, pull rating, surface condition and moisture protection. Dirt and gaps can reduce practical grip.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical - UMGZ 36x18x8 [M6] GZ / N38 - magnetic holder external thread

Specification / characteristics - UMGZ 36x18x8 [M6] GZ / N38 - magnetic holder external thread

properties
properties values
Cat. no. 190325
GTIN/EAN 5906301813842
Distributor Dhit sp. z o.o.
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 50 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 UMGZ 36x18x8 [M6] GZ / N38 - magnetic holder external thread
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working 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 310 °C
Curie Temperature TF 590 °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%

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: 190325-2026
Measurement Calculator

Pulling force

Field Strength

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This type of holder has a protruding threaded stud (screw), making it perfect for mounting in through holes. Thanks to this, you get a solid, magnetized mounting point without welding or gluing. Used for mounting sensors, panels, plates, and exhibition elements.
The threaded stud is an integral part of the steel housing, but avoid overtightening the thread. We recommend using spring washers to avoid the need for forceful tightening. The magnet itself is protected by a steel cup and is very resistant to impact.
Above this temperature, the magnet may irreversibly lose some of its power. We also offer holders made of ferrite magnets (resistant up to 200°C) or special high-temperature versions. Remember that even momentary overheating can weaken the holder.
Holders are equipped with standard metric threads (e.g., M4, M6, M8, M10). Exact screw dimensions can be found in the product technical table. The thread is made of galvanized steel, ensuring corrosion resistance.
The magnetic system in a cup is more energy-efficient than the magnet itself of the same dimensions. It is a solution optimized for strong holding with direct contact, not attracting from afar.

Pros and cons of Nd2Fe14B magnets.

Strengths

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They have stable power, and over nearly ten years their performance decreases symbolically – ~1% (in testing),
  • They retain their magnetic properties even under external field action,
  • A magnet with a metallic gold surface has better aesthetics,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of precise machining and adapting to complex applications,
  • Universal use in modern technologies – they are commonly used in magnetic memories, electric drive systems, medical devices, also technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of NdFeB magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We suggest a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complicated forms.
  • Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these devices are able to complicate diagnosis medical after entering the body.
  • Due to complex production process, their price is relatively high,

Pull force analysis

Maximum magnetic pulling force – what it depends on?

The lifting capacity listed is a measurement result conducted under specific, ideal conditions:
  • on a base made of structural steel, optimally conducting the magnetic flux
  • possessing a massiveness of min. 10 mm to ensure full flux closure
  • characterized by even structure
  • without the slightest air gap between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • in temp. approx. 20°C

Practical lifting capacity: influencing factors

Bear in mind that the magnet holding will differ depending on the following factors, in order of importance:
  • Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the surface is typically several times lower (approx. 1/5 of the lifting capacity).
  • Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Material type – ideal substrate is high-permeability steel. Stainless steels may attract less.
  • Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
  • Thermal environment – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate reduces the holding force.

Warnings
Life threat

Patients with a ICD have to keep an safe separation from magnets. The magnetism can disrupt the operation of the implant.

Do not drill into magnets

Mechanical processing of NdFeB material carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Magnet fragility

Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

Heat warning

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Safe operation

Use magnets with awareness. Their huge power can surprise even experienced users. Plan your moves and do not underestimate their force.

GPS and phone interference

An intense magnetic field negatively affects the operation of compasses in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

This is not a toy

Neodymium magnets are not toys. Accidental ingestion of a few magnets can lead to them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates urgent medical intervention.

Nickel allergy

Some people suffer from a sensitization to nickel, which is the standard coating for neodymium magnets. Prolonged contact can result in an allergic reaction. We suggest wear safety gloves.

Hand protection

Large magnets can break fingers in a fraction of a second. Never put your hand betwixt two attracting surfaces.

Threat to electronics

Very strong magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.

Warning! Need more info? Read our article: Are neodymium magnets dangerous?