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UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
magnetic holder rubber internal thread
Catalog no 160304
GTIN/EAN: 5906301813620
Diameter Ø
22 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
12 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 parameters - UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
Specification / characteristics - UMGGW 22x6 [M4] GW / N38 - magnetic holder rubber internal thread
| properties | values |
|---|---|
| Cat. no. | 160304 |
| GTIN/EAN | 5906301813620 |
| 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 | 12 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Pros and cons of Nd2Fe14B magnets.
Benefits
- They do not lose strength, even over approximately 10 years – the reduction in lifting capacity is only ~1% (according to tests),
- They feature excellent resistance to magnetism drop due to external magnetic sources,
- In other words, due to the shiny finish of gold, the element gains a professional look,
- Neodymium magnets deliver maximum magnetic induction on a small surface, which increases force concentration,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures reaching 230°C and above...
- In view of the ability of flexible forming and adaptation to individualized projects, neodymium magnets can be modeled in a broad palette of forms and dimensions, which amplifies use scope,
- Versatile presence in future technologies – they are used in hard drives, drive modules, diagnostic systems, also technologically advanced constructions.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- Neodymium magnets decrease their power 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 stability even at temperatures up to 230°C
- They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing nuts and complicated shapes in magnets, we recommend using a housing - magnetic holder.
- Possible danger to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, tiny parts of these products can complicate diagnosis medical after entering the body.
- With mass production the cost of neodymium magnets is economically unviable,
Pull force analysis
Maximum lifting force for a neodymium magnet – what affects it?
- using a base made of high-permeability steel, acting as a magnetic yoke
- with a thickness no less than 10 mm
- characterized by smoothness
- under conditions of ideal adhesion (surface-to-surface)
- during pulling in a direction vertical to the mounting surface
- in neutral thermal conditions
Practical lifting capacity: influencing factors
- Distance (betwixt the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
- Direction of force – maximum parameter is available only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
- Steel thickness – too thin plate does not accept the full field, causing part of the flux to be escaped into the air.
- Material type – ideal substrate is pure iron steel. Cast iron may attract less.
- Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
- Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.
Safety rules for work with NdFeB magnets
Magnetic interference
GPS units and smartphones are highly sensitive to magnetic fields. Close proximity with a strong magnet can decalibrate the sensors in your phone.
Do not overheat magnets
Regular neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Caution required
Exercise caution. Neodymium magnets act from a long distance and snap with massive power, often quicker than you can react.
Do not drill into magnets
Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Cards and drives
Do not bring magnets close to a purse, computer, or TV. The magnetic field can destroy these devices and erase data from cards.
Allergic reactions
Some people experience a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Extended handling might lead to dermatitis. We recommend wear safety gloves.
Medical interference
Patients with a pacemaker should keep an large gap from magnets. The magnetic field can disrupt the functioning of the life-saving device.
Swallowing risk
Only for adults. Small elements pose a choking risk, causing serious injuries. Store out of reach of children and animals.
Physical harm
Pinching hazard: The attraction force is so great that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.
Risk of cracking
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
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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