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Product available Ships tomorrow

UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

conical magnetic holder

Catalog no 220330

GTIN/EAN: 5906301814207

5.00

Diameter Ø

36 mm [±1 mm]

cone dimension Ø

10.5x6.5 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

45 g

Magnetization Direction

↑ axial

Load capacity

29.00 kg / 284.39 N

Coating

[NiCuNi] Nickel

see technical specifications »

22.94 ZŁ with VAT / pcs + price for transport

18.65 ZŁ net + 23% VAT / pcs

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Give us a call +48 888 99 98 98 otherwise let us know by means of contact form the contact page.
Lifting power and appearance of magnetic components can be analyzed with our force calculator.

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Physical properties - UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

Specification / characteristics - UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

properties
properties values
Cat. no. 220330
GTIN/EAN 5906301814207
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]
cone dimension Ø 10.5x6.5 mm [±1 mm]
Height 8 mm [±1 mm]
Weight 45 g
Magnetization Direction ↑ axial
Load capacity ~ ? 29.00 kg / 284.39 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMS 36x10.5x6.5x8 / N38 - conical 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
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%
Environmental data
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: 220330-2026
Magnet Unit Converter
Force (pull)
Field Strength
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Countersunk magnets are indispensable in carpentry, furniture making, and modeling as hidden closures. The holder can be screwed directly to wood, wall, metal, or plastic. The steel cup strengthens the magnet force and protects it from cracking upon impact.
Neodymium magnets are sintered ceramics, which means they are very hard but also brittle. It is best to use a screw with a countersunk head perfectly matched to the hole. Using too large a countersunk screw may cause the magnetic ring to crack.
For two magnets screwed with cones facing each other (faces) to attract, they must have different polarity. Often a more convenient and cheaper solution is using one magnet and a steel washer (plate) as an armature. Mounting a magnet to a plate eliminates the problem of matching poles and is easier.
The declared capacity (e.g., 29.00 kg) refers to the perpendicular force needed to detach the magnet from thick steel. In practice, when mounted on a wall (shear force), the magnet will hold significantly less (approx. 20-30% of nominal). When selecting a magnet for a cabinet, remember that the air gap (e.g., bumpers, seals) weakens the grip.
Thanks to the metal cup, the magnetic field is concentrated on the active side, which significantly increases force. It is a more durable and safer solution in everyday use than a bare ring. The countersunk holder is a professional mounting solution with increased durability.

Pros as well as cons of Nd2Fe14B magnets.

Advantages

Apart from their consistent magnetism, neodymium magnets have these key benefits:
  • They have stable power, and over nearly 10 years their attraction force decreases symbolically – ~1% (according to theory),
  • They feature excellent resistance to magnetism drop when exposed to opposing magnetic fields,
  • In other words, due to the aesthetic layer of nickel, the element gains visual value,
  • Magnets possess maximum magnetic induction on the outer side,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
  • Possibility of precise shaping and adapting to concrete needs,
  • Key role in electronics industry – they are utilized in HDD drives, brushless drives, medical devices, also complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in compact constructions

Disadvantages

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
  • NdFeB magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 very resistant to heat
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • Limited ability of creating nuts in the magnet and complex shapes - recommended is cover - mounting mechanism.
  • Possible danger related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, small components of these products can complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Highest magnetic holding force – what it depends on?

The force parameter is a theoretical maximum value performed under standard conditions:
  • on a base made of mild steel, effectively closing the magnetic field
  • possessing a thickness of at least 10 mm to ensure full flux closure
  • with a surface cleaned and smooth
  • with zero gap (no paint)
  • for force acting at a right angle (pull-off, not shear)
  • in neutral thermal conditions

Determinants of practical lifting force of a magnet

In real-world applications, the actual lifting capacity depends on many variables, presented from the most important:
  • Clearance – existence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
  • 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.
  • Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
  • Plate texture – ground elements ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
  • Temperature influence – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Lifting capacity was measured with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the holding force.

Warnings
Physical harm

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

GPS Danger

A powerful magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Keep magnets near a smartphone to avoid damaging the sensors.

Implant safety

Individuals with a pacemaker have to keep an safe separation from magnets. The magnetism can disrupt the functioning of the implant.

Electronic hazard

Do not bring magnets close to a purse, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Immense force

Handle magnets with awareness. Their powerful strength can surprise even professionals. Plan your moves and do not underestimate their power.

Flammability

Fire warning: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.

Protective goggles

NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them cracking into small pieces.

Danger to the youngest

These products are not intended for children. Accidental ingestion of multiple magnets can lead to them pinching intestinal walls, which poses a critical condition and necessitates immediate surgery.

Skin irritation risks

A percentage of the population have a contact allergy to Ni, which is the common plating for NdFeB magnets. Extended handling may cause dermatitis. We suggest wear safety gloves.

Power loss in heat

Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.

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