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UMS 60x18x8.5x15 / N38 - conical magnetic holder

conical magnetic holder

Catalog no 220404

GTIN/EAN: 5906301814238

5.00

Diameter Ø

60 mm [±1 mm]

cone dimension Ø

18x8.5 mm [±1 mm]

Height

15 mm [±1 mm]

Weight

250 g

Magnetization Direction

↑ axial

Load capacity

112.00 kg / 1098.34 N

Coating

[NiCuNi] Nickel

see properties »

62.78 ZŁ with VAT / pcs + price for transport

51.04 ZŁ net + 23% VAT / pcs

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Strength along with shape of a neodymium magnet can be estimated with our magnetic calculator.

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Detailed specification - UMS 60x18x8.5x15 / N38 - conical magnetic holder

Specification / characteristics - UMS 60x18x8.5x15 / N38 - conical magnetic holder

properties
properties values
Cat. no. 220404
GTIN/EAN 5906301814238
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 60 mm [±1 mm]
cone dimension Ø 18x8.5 mm [±1 mm]
Height 15 mm [±1 mm]
Weight 250 g
Magnetization Direction ↑ axial
Load capacity ~ ? 112.00 kg / 1098.34 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMS 60x18x8.5x15 / 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 specification and ecology
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: 220404-2026
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This type of holder is perfect for mounting magnetic latches in cabinets, doors, and flaps. 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.
Despite the steel housing, the magnet itself is prone to cracking under strong point pressure. It is best to use a screw with a countersunk head perfectly matched to the hole. The screw head should not protrude above the magnet surface, but it cannot burst it either.
For two magnets screwed with cones facing each other (faces) to attract, they must have different polarity. In our offer, we try to mark or pair holders if explicitly stated in the description. A set of magnet + plate is cheaper and holds just as strongly.
The declared capacity (e.g., 112.00 kg) refers to the perpendicular force needed to detach the magnet from thick steel. If the magnet hangs vertically, gravity causes it to slide with much less load. 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. The housing absorbs impacts, preventing the magnet from crumbling and cracking. A bare ring has a dispersed field on both sides but is weaker in point holding.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Pros

Besides their high retention, neodymium magnets are valued for these benefits:
  • They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
  • Neodymium magnets are distinguished by highly resistant to loss of magnetic properties caused by external field sources,
  • By applying a reflective layer of silver, the element has an aesthetic look,
  • They are known for high magnetic induction at the operating surface, making them more effective,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to modularity in designing and the capacity to adapt to complex applications,
  • Universal use in advanced technology sectors – they find application in magnetic memories, electromotive mechanisms, diagnostic systems, as well as modern systems.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Characteristics of disadvantages of neodymium magnets: application proposals
  • At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power 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 rust. Therefore while using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited ability of producing threads in the magnet and complex forms - recommended is casing - magnet mounting.
  • Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these products are able to disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what contributes to it?

The lifting capacity listed is a measurement result conducted under standard conditions:
  • with the contact of a yoke made of low-carbon steel, guaranteeing maximum field concentration
  • with a thickness minimum 10 mm
  • with a plane free of scratches
  • without the slightest clearance between the magnet and steel
  • during detachment in a direction vertical to the mounting surface
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

Please note that the magnet holding will differ subject to the following factors, starting with the most relevant:
  • Distance (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to paint, rust or dirt).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
  • Metal type – not every steel reacts the same. High carbon content worsen the attraction effect.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Uneven metal reduce efficiency.
  • Thermal environment – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate reduces the holding force.

Safety rules for work with neodymium magnets
Thermal limits

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

Impact on smartphones

A strong magnetic field interferes with the operation of compasses in phones and navigation systems. Do not bring magnets near a smartphone to avoid breaking the sensors.

Pacemakers

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

Magnetic media

Powerful magnetic fields can erase data on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Risk of cracking

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Dust explosion hazard

Fire hazard: Neodymium dust is highly flammable. Do not process magnets without safety gear as this may cause fire.

Immense force

Use magnets with awareness. Their huge power can shock even professionals. Stay alert and do not underestimate their force.

Do not give to children

Absolutely store magnets away from children. Choking hazard is significant, and the consequences of magnets clamping inside the body are very dangerous.

Bone fractures

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

Allergy Warning

Some people suffer from a sensitization to Ni, which is the standard coating for NdFeB magnets. Prolonged contact might lead to an allergic reaction. We strongly advise wear safety gloves.

Warning! Looking for details? Check our post: Are neodymium magnets dangerous?