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

UMC 75x11/6x18 / N38 - cylindrical magnetic holder

cylindrical magnetic holder

Catalog no 320414

GTIN/EAN: 5906301814702

5.00

Diameter

75 mm [±1 mm]

internal diameter Ø

11/6 mm [±1 mm]

Height

18 mm [±1 mm]

Weight

465 g

Magnetization Direction

↑ axial

Load capacity

155.00 kg / 1520.03 N

Coating

[NiCuNi] Nickel

technical details »

169.86 ZŁ with VAT / pcs + price for transport

138.10 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
138.10 ZŁ
169.86 ZŁ
price from 5 pcs
129.81 ZŁ
159.67 ZŁ
price from 10 pcs
121.53 ZŁ
149.48 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Looking for a better price?

Pick up the phone and ask +48 22 499 98 98 alternatively contact us using inquiry form the contact page.
Strength and form of magnets can be reviewed on our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Technical - UMC 75x11/6x18 / N38 - cylindrical magnetic holder

Specification / characteristics - UMC 75x11/6x18 / N38 - cylindrical magnetic holder

properties
properties values
Cat. no. 320414
GTIN/EAN 5906301814702
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 75 mm [±1 mm]
internal diameter Ø 11/6 mm [±1 mm]
Height 18 mm [±1 mm]
Weight 465 g
Magnetization Direction ↑ axial
Load capacity ~ ? 155.00 kg / 1520.03 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMC 75x11/6x18 / N38 - cylindrical magnetic holder
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
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: 320414-2026
Magnet Unit Converter
Magnet pull force
Magnetic Field
Simply populate a single box, to let the tool compute everything else instantly.

Check out also products

BM 380x180x70 [4x M8] - magnetic beam
Product available Ships today (order by 14:00)

BM 380x180x70 [4x M8] - magnetic beam

4185.08 ZŁ brutto / pcs
MW 12x1 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 12x1 / N38 - cylindrical magnet

0.578 ZŁ brutto / pcs
UMH 75x18x68 [M8] / N38 - magnetic holder with hook
Product available Ships today (order by 14:00)

UMH 75x18x68 [M8] / N38 - magnetic holder with hook

202.95 ZŁ brutto / pcs
MPL 10x5x1.5 / N38 - lamellar magnet
Product available Ships today (order by 14:00)

MPL 10x5x1.5 / N38 - lamellar magnet

0.381 ZŁ brutto / pcs
These are magnets in the shape of a rod in a brass or steel sleeve, ideal for embedding in deep sockets. Used where the magnet must be hidden deep in the material or precisely positioned.
These holders usually have an internal thread (blind or through) on the back wall. Thanks to the long body, the magnet is stable in the hole and does not tilt.
The construction causes the magnetic flux to short-circuit inside, making the sides practically non-magnetic. This is a key feature when mounting in steel sockets so the magnet doesn't "stick" to the hole walls during insertion.
It is one of the most durable types of holders, resistant to crushing. Thanks to the solid build, the holder withstands repeated impacts and shocks during work cycles.
These holders are produced with standard tolerance for industrial magnets (usually ±0.1 mm or h6). It is an industrial product, not a precise machine element, although the execution is careful.

Pros and cons of Nd2Fe14B magnets.

Pros

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:
  • They retain magnetic properties for almost ten years – the drop is just ~1% (based on simulations),
  • They have excellent resistance to weakening of magnetic properties due to external fields,
  • By using a decorative coating of silver, the element has an proper look,
  • The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Thanks to the ability of accurate forming and adaptation to specialized requirements, magnetic components can be created in a wide range of forms and dimensions, which amplifies use scope,
  • Huge importance in modern industrial fields – they are utilized in computer drives, electromotive mechanisms, advanced medical instruments, and industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in compact constructions

Weaknesses

Disadvantages of neodymium magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Due to limitations in producing nuts and complex shapes in magnets, we recommend using a housing - magnetic holder.
  • Potential hazard resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, tiny parts of these magnets can be problematic in diagnostics medical when they are in the body.
  • Due to neodymium price, their price exceeds standard values,

Lifting parameters

Maximum lifting capacity of the magnet – what affects it?

The load parameter shown concerns the peak performance, measured under optimal environment, specifically:
  • using a base made of mild steel, serving as a magnetic yoke
  • whose thickness is min. 10 mm
  • characterized by lack of roughness
  • without any air gap between the magnet and steel
  • under vertical force direction (90-degree angle)
  • at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

In real-world applications, the actual holding force is determined by a number of factors, listed from crucial:
  • Gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, rust or debris).
  • Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Plate material – low-carbon steel attracts best. Alloy admixtures decrease magnetic permeability and lifting capacity.
  • Surface condition – smooth surfaces ensure maximum contact, which increases force. Uneven metal reduce efficiency.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.

Safety rules for work with NdFeB magnets
Hand protection

Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying anything in their path. Exercise extreme caution!

Demagnetization risk

Control the heat. Exposing the magnet to high heat will ruin its properties and strength.

Pacemakers

People with a pacemaker should keep an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.

Swallowing risk

Neodymium magnets are not suitable for play. Swallowing multiple magnets may result in them connecting inside the digestive tract, which poses a direct threat to life and necessitates immediate surgery.

Fragile material

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

Precision electronics

An intense magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Maintain magnets near a device to avoid damaging the sensors.

Sensitization to coating

Certain individuals experience a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Extended handling can result in an allergic reaction. We suggest wear safety gloves.

Magnetic media

Intense magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Immense force

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Machining danger

Powder produced during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

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