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
bulk discounts:
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Product card - 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 |
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of rare earth magnets.
Advantages
- They do not lose power, even over around ten years – the drop in power is only ~1% (based on measurements),
- Neodymium magnets are characterized by extremely resistant to loss of magnetic properties caused by external magnetic fields,
- A magnet with a shiny silver surface is more attractive,
- The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
- Thanks to flexibility in constructing and the capacity to customize to client solutions,
- Huge importance in modern technologies – they are used in HDD drives, electric motors, advanced medical instruments, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Weaknesses
- At very strong impacts they can crack, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating nuts and complex shapes in magnets, we recommend using casing - magnetic mechanism.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these magnets are able to complicate diagnosis medical in case of swallowing.
- Due to neodymium price, their price exceeds standard values,
Holding force characteristics
Highest magnetic holding force – what it depends on?
- using a plate made of mild steel, serving as a ideal flux conductor
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by lack of roughness
- without any air gap between the magnet and steel
- during detachment in a direction vertical to the mounting surface
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Base massiveness – too thin steel does not accept the full field, causing part of the power to be escaped into the air.
- Plate material – low-carbon steel gives the best results. Alloy admixtures reduce magnetic permeability and holding force.
- Plate texture – ground elements ensure maximum contact, which increases field saturation. Uneven metal reduce efficiency.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.
Lifting capacity was assessed using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.
Safe handling of NdFeB magnets
Serious injuries
Large magnets can smash fingers instantly. Never place your hand between two attracting surfaces.
Nickel coating and allergies
Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation occurs, immediately stop working with magnets and wear gloves.
Electronic devices
Powerful magnetic fields can corrupt files on payment cards, hard drives, and storage devices. Keep a distance of min. 10 cm.
Life threat
Medical warning: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Magnets are brittle
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.
Product not for children
NdFeB magnets are not suitable for play. Swallowing several magnets can lead to them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.
Handling guide
Handle magnets with awareness. Their immense force can shock even professionals. Stay alert and do not underestimate their force.
Flammability
Powder produced during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Heat sensitivity
Monitor thermal conditions. Heating the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Phone sensors
Be aware: rare earth magnets generate a field that disrupts precision electronics. Maintain a safe distance from your mobile, device, and GPS.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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