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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 |
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also deals
![UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread](https://cdn3.dhit.pl/graphics/products/um-42x20x9-m8-gw-god.jpg "UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread")
Strengths and weaknesses of rare earth magnets.
Strengths
- They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (according to literature),
- They are noted for resistance to demagnetization induced by external disturbances,
- In other words, due to the reflective surface of silver, the element is aesthetically pleasing,
- Magnetic induction on the working part of the magnet remains extremely intense,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Considering the possibility of flexible shaping and customization to specialized projects, neodymium magnets can be created in a variety of geometric configurations, which expands the range of possible applications,
- Fundamental importance in innovative solutions – they are utilized in hard drives, electric drive systems, medical devices, as well as other advanced devices.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Weaknesses
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of producing threads in the magnet and complicated shapes - recommended is a housing - magnet mounting.
- Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- on a block made of structural steel, optimally conducting the magnetic field
- with a thickness minimum 10 mm
- with a plane cleaned and smooth
- with direct contact (no coatings)
- during detachment in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
Determinants of lifting force in real conditions
- Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
- Base massiveness – too thin steel does not close the flux, causing part of the power to be lost to the other side.
- Steel grade – the best choice is pure iron steel. Stainless steels may attract less.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
- Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity was measured using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.
Precautions when working with neodymium magnets
Fire risk
Fire warning: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.
Nickel coating and allergies
Some people experience a contact allergy to nickel, which is the common plating for NdFeB magnets. Prolonged contact may cause skin redness. We suggest wear safety gloves.
Conscious usage
Exercise caution. Neodymium magnets act from a distance and snap with huge force, often quicker than you can move away.
Eye protection
Neodymium magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets will cause them shattering into small pieces.
Impact on smartphones
Navigation devices and mobile phones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Electronic hazard
Very strong magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Keep a distance of at least 10 cm.
ICD Warning
People with a pacemaker have to maintain an safe separation from magnets. The magnetism can disrupt the operation of the implant.
Pinching danger
Watch your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
No play value
Product intended for adults. Small elements pose a choking risk, causing intestinal necrosis. Store away from children and animals.
Operating temperature
Do not overheat. NdFeB magnets are susceptible to heat. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
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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