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UMGZ 16x13x5 [M4] GZ / N38 - magnetic holder external thread
magnetic holder external thread
Catalog no 190321
GTIN/EAN: 5906301813804
Diameter Ø
16 mm [±1 mm]
Height
13 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
7 g
Load capacity
5.00 kg / 49.03 N
3.89 ZŁ with VAT / pcs + price for transport
3.16 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power along with structure of neodymium magnets can be analyzed with our
power calculator.
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Technical parameters of the product - UMGZ 16x13x5 [M4] GZ / N38 - magnetic holder external thread
Specification / characteristics - UMGZ 16x13x5 [M4] GZ / N38 - magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 190321 |
| GTIN/EAN | 5906301813804 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 16 mm [±1 mm] |
| Height | 13 mm [±1 mm] |
| Height | 5 mm [±1 mm] |
| Weight | 7 g |
| Load capacity ~ ? | 5.00 kg / 49.03 N |
| 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- They retain magnetic properties for nearly 10 years – the loss is just ~1% (according to analyses),
- They possess excellent resistance to weakening of magnetic properties due to external magnetic sources,
- By applying a shiny coating of silver, the element acquires an modern look,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which ensures high operational effectiveness,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of precise forming as well as adjusting to individual needs,
- Significant place in modern technologies – they find application in magnetic memories, electric drive systems, diagnostic systems, and complex engineering applications.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Limitations
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets demagnetize 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 usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
- We recommend cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complex shapes.
- Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, small components of these magnets can complicate diagnosis medical in case of swallowing.
- Due to neodymium price, their price is relatively high,
Pull force analysis
Best holding force of the magnet in ideal parameters – what contributes to it?
- with the application of a sheet made of special test steel, ensuring full magnetic saturation
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- under conditions of no distance (metal-to-metal)
- during detachment in a direction vertical to the mounting surface
- at ambient temperature room level
Key elements affecting lifting force
- Distance (betwixt the magnet and the metal), because even a tiny clearance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
- Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Steel thickness – insufficiently thick sheet does not close the flux, causing part of the power to be escaped to the other side.
- Metal type – not every steel reacts the same. High carbon content weaken the attraction effect.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Rough surfaces reduce efficiency.
- Temperature influence – high temperature reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of neodymium magnets
Nickel allergy
Certain individuals experience a sensitization to nickel, which is the typical protective layer for neodymium magnets. Extended handling may cause skin redness. It is best to wear protective gloves.
Eye protection
Despite metallic appearance, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Threat to electronics
Data protection: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).
Threat to navigation
GPS units and mobile phones are extremely susceptible to magnetism. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.
Implant safety
For implant holders: Powerful magnets affect medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.
Keep away from children
Only for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep away from kids and pets.
Demagnetization risk
Keep cool. Neodymium magnets are sensitive to heat. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Combustion hazard
Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Conscious usage
Use magnets with awareness. Their huge power can shock even experienced users. Be vigilant and do not underestimate their power.
Pinching danger
Big blocks can crush fingers instantly. Under no circumstances place your hand between two attracting surfaces.
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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