UMS 16x6.5x3.5x5 / N38 - conical magnetic holder
conical magnetic holder
Catalog no 220326
GTIN/EAN: 5906301814160
Diameter Ø
16 mm [±1 mm]
cone dimension Ø
6.5x3.5 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
5.5 g
Magnetization Direction
↑ axial
Load capacity
5.00 kg / 49.03 N
Coating
[NiCuNi] Nickel
4.48 ZŁ with VAT / pcs + price for transport
3.64 ZŁ net + 23% VAT / pcs
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Physical properties - UMS 16x6.5x3.5x5 / N38 - conical magnetic holder
Specification / characteristics - UMS 16x6.5x3.5x5 / N38 - conical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 220326 |
| GTIN/EAN | 5906301814160 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 16 mm [±1 mm] |
| cone dimension Ø | 6.5x3.5 mm [±1 mm] |
| Height | 5 mm [±1 mm] |
| Weight | 5.5 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 5.00 kg / 49.03 N |
| Coating | [NiCuNi] Nickel |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N38
| 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
| 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 |
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 |
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Advantages as well as disadvantages of rare earth magnets.
Pros
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (according to literature),
- They retain their magnetic properties even under close interference source,
- By covering with a decorative coating of silver, the element has an proper look,
- Neodymium magnets ensure maximum magnetic induction on a small area, which increases force concentration,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of detailed machining and modifying to atypical requirements,
- Wide application in modern industrial fields – they are utilized in magnetic memories, electric motors, precision medical tools, and industrial machines.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in realizing nuts and complicated shapes in magnets, we propose using casing - magnetic mount.
- Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these devices can disrupt the diagnostic process medical when they are in the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Holding force characteristics
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- with the contact of a sheet made of special test steel, ensuring full magnetic saturation
- with a thickness no less than 10 mm
- with an ideally smooth contact surface
- without the slightest air gap between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at temperature room level
Practical lifting capacity: influencing factors
- Distance – the presence of any layer (rust, dirt, gap) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Steel type – mild steel gives the best results. Alloy steels decrease magnetic permeability and holding force.
- Surface condition – ground elements ensure maximum contact, which improves force. Rough surfaces weaken the grip.
- Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, however under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet and the plate decreases the holding force.
Warnings
Danger to pacemakers
Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.
Electronic hazard
Avoid bringing magnets near a purse, laptop, or screen. The magnetic field can irreversibly ruin these devices and wipe information from cards.
Allergy Warning
A percentage of the population suffer from a sensitization to Ni, which is the typical protective layer for neodymium magnets. Frequent touching can result in dermatitis. We suggest wear protective gloves.
Fragile material
Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.
Combustion hazard
Powder created during grinding of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.
Magnetic interference
Navigation devices and mobile phones are extremely sensitive to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Swallowing risk
Always keep magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are life-threatening.
Bodily injuries
Large magnets can crush fingers instantly. Do not put your hand betwixt two attracting surfaces.
Do not underestimate power
Handle magnets with awareness. Their immense force can shock even professionals. Stay alert and respect their force.
Demagnetization risk
Avoid heat. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).
Tabela kosztu i czasu dostawy
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Przesyłka będzie u Ciebie za 2-3 dni
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12.30 ZŁ
Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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