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UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread
rubber magnetic holder external thread
Catalog no 340310
GTIN/EAN: 5906301814726
Diameter Ø
22 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
15 g
Load capacity
5.10 kg / 50.01 N
7.38 ZŁ with VAT / pcs + price for transport
6.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread
Specification / characteristics - UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 340310 |
| GTIN/EAN | 5906301814726 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 22 mm [±1 mm] |
| Height | 6 mm [±1 mm] |
| Weight | 15 g |
| Load capacity ~ ? | 5.10 kg / 50.01 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 |
Elemental analysis
| 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 as well as disadvantages of rare earth magnets.
Pros
- They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
- They are resistant to demagnetization induced by external disturbances,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to present itself better,
- They feature high magnetic induction at the operating surface, making them more effective,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to freedom in shaping and the capacity to customize to unusual requirements,
- Huge importance in high-tech industry – they serve a role in magnetic memories, electric drive systems, precision medical tools, and complex engineering applications.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Disadvantages
- Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also raises their durability
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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 those in rubber or plastics, which prevent oxidation as well as corrosion.
- Limited possibility of creating nuts in the magnet and complicated forms - recommended is casing - magnet mounting.
- Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child safety. Furthermore, small components of these magnets are able to 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
Holding force characteristics
Detachment force of the magnet in optimal conditions – what affects it?
- on a plate made of structural steel, optimally conducting the magnetic flux
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by smoothness
- under conditions of ideal adhesion (metal-to-metal)
- under vertical application of breakaway force (90-degree angle)
- in stable room temperature
Magnet lifting force in use – key factors
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Plate thickness – insufficiently thick steel does not close the flux, causing part of the flux to be lost to the other side.
- Steel grade – ideal substrate is pure iron steel. Hardened steels may have worse magnetic properties.
- Plate texture – ground elements ensure maximum contact, which increases field saturation. Uneven metal reduce efficiency.
- Temperature influence – high temperature weakens pulling force. Too high temperature can permanently damage the magnet.
Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.
Safety rules for work with neodymium magnets
Demagnetization risk
Watch the temperature. Exposing the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Risk of cracking
Despite metallic appearance, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.
Nickel coating and allergies
Some people have a sensitization to nickel, which is the common plating for neodymium magnets. Frequent touching may cause skin redness. We suggest use protective gloves.
Cards and drives
Very strong magnetic fields can erase data on payment cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.
Impact on smartphones
A strong magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Maintain magnets close to a device to prevent damaging the sensors.
Machining danger
Powder generated during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
Product not for children
NdFeB magnets are not intended for children. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and requires immediate surgery.
Handling guide
Be careful. Neodymium magnets act from a distance and snap with huge force, often faster than you can react.
Pacemakers
Life threat: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Physical harm
Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
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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