← previous
next →
Product available Ships today (order by 14:00)

UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180318

GTIN/EAN: 5906301813743

5.00

Diameter Ø

32 mm [±1 mm]

Height

18 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

42 g

Magnetization Direction

↑ axial

Load capacity

34.00 kg / 333.43 N

Coating

[NiCuNi] Nickel

technical details »

15.22 ZŁ with VAT / pcs + price for transport

12.37 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
12.37 ZŁ
15.22 ZŁ
price from 30 pcs
11.63 ZŁ
14.30 ZŁ
price from 130 pcs
10.89 ZŁ
13.39 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Hunting for a discount?

Call us +48 888 99 98 98 alternatively drop us a message using our online form the contact form page.
Force and shape of a magnet can be checked with our modular calculator.

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

Physical properties - UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

Specification / characteristics - UMGW 32x18x8 [M6] GW / N38 - magnetic holder internal thread

properties
properties values
Cat. no. 180318
GTIN/EAN 5906301813743
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 42 g
Magnetization Direction ↑ axial
Load capacity ~ ? 34.00 kg / 333.43 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGW 32x18x8 [M6] 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 and environmental data
Material specification
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: 180318-2026
Quick Unit Converter
Magnet pull force
Magnetic Field
Put your value in a single field to see the conversion in all other fields at once.

Other deals

SM 32x325 [2xM8] / N42 - magnetic separator
Product available Ships today (order by 14:00)

SM 32x325 [2xM8] / N42 - magnetic separator

1143.90 ZŁ brutto / pcs
MW 5x25 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 5x25 / N38 - cylindrical magnet

2.31 ZŁ brutto / pcs
SM 25x275 [2xM8] / N42 - magnetic separator
Product available Ships today (order by 14:00)

SM 25x275 [2xM8] / N42 - magnetic separator

762.60 ZŁ brutto / pcs
MW 8x1.5 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 8x1.5 / N38 - cylindrical magnet

0.455 ZŁ brutto / pcs
The steel cup acts as an armature, concentrating the magnetic flux and increasing capacity even several times. The metal cover secures the magnet against mechanical damage, which is common in workshop conditions. The threaded hole allows creating a functional mounting point in seconds.
Care must be taken not to screw the bolt too deep into the magnet bushing. Neodymium magnets are brittle, and direct pressure from a screw can cause them to crack or detach. 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 enable creating demountable connections that can be easily moved. In the workshop, they can serve as mounting points for tools or measuring instruments.
Nominal capacity (for this model approx. 34.00 kg) is measured in ideal conditions: perpendicular detachment from thick steel (min. 10mm). 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.
Standard coating effectively protects against moisture in indoor conditions. 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.

Pros as well as cons of neodymium magnets.

Advantages

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after ten years the performance loss is only ~1% (according to literature),
  • They feature excellent resistance to magnetism drop due to opposing magnetic fields,
  • By covering with a reflective layer of nickel, the element presents an nice look,
  • Magnets are characterized by huge magnetic induction on the working surface,
  • Neodymium magnets are characterized by extremely 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 versatility in designing and the ability to adapt to complex applications,
  • Huge importance in future technologies – they are commonly used in computer drives, electric motors, diagnostic systems, as well as technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,

Disadvantages

Disadvantages of NdFeB magnets:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
  • Neodymium magnets lose their force 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • Due to limitations in producing nuts and complicated shapes in magnets, we propose using casing - magnetic holder.
  • Health risk to health – tiny shards of magnets are risky, in case of ingestion, which becomes key in the context of child safety. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
  • Due to complex production process, their price exceeds standard values,

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?

The load parameter shown represents the peak performance, obtained under optimal environment, namely:
  • with the contact of a yoke made of low-carbon steel, guaranteeing maximum field concentration
  • with a cross-section of at least 10 mm
  • with an ideally smooth touching surface
  • without any air gap between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • in temp. approx. 20°C

Determinants of practical lifting force of a magnet

Real force impacted by specific conditions, mainly (from most important):
  • Air gap (between the magnet and the metal), because even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to paint, corrosion or debris).
  • Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of generating force.
  • Plate material – low-carbon steel attracts best. Alloy steels reduce magnetic properties and holding force.
  • Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on a smooth plate of suitable thickness, under perpendicular forces, however under parallel forces the holding force is lower. In addition, even a minimal clearance between the magnet and the plate reduces the load capacity.

Safety rules for work with neodymium magnets
Serious injuries

Protect your hands. Two powerful magnets will snap together immediately with a force of massive weight, crushing everything in their path. Be careful!

Warning for allergy sufferers

Medical facts indicate that nickel (the usual finish) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and opt for versions in plastic housing.

Do not give to children

Absolutely store magnets away from children. Ingestion danger is significant, and the effects of magnets connecting inside the body are fatal.

Life threat

People with a pacemaker have to maintain an absolute distance from magnets. The magnetism can interfere with the operation of the implant.

Operating temperature

Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. The loss of strength is permanent.

Mechanical processing

Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Threat to navigation

GPS units and mobile phones are highly sensitive to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Handling rules

Before use, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Protective goggles

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

Keep away from computers

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

Caution! More info about risks in the article: Magnet Safety Guide.