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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
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Technical specification - 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% |
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 Nd2Fe14B magnets.
Benefits
- They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (according to literature),
- Neodymium magnets remain extremely resistant to demagnetization caused by magnetic disturbances,
- A magnet with a shiny gold surface is more attractive,
- Magnets possess impressive magnetic induction on the surface,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Possibility of accurate machining as well as adjusting to atypical applications,
- Versatile presence in advanced technology sectors – they are commonly used in mass storage devices, drive modules, medical devices, and industrial machines.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Limitations
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its 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 durability even at temperatures up to 230°C
- They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We suggest cover - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complicated forms.
- Health risk related to microscopic parts of magnets can be dangerous, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that tiny parts of these magnets are able to complicate diagnosis medical in case of swallowing.
- With large orders the cost of neodymium magnets can be a barrier,
Lifting parameters
Optimal lifting capacity of a neodymium magnet – what it depends on?
- using a base made of high-permeability steel, functioning as a ideal flux conductor
- with a thickness of at least 10 mm
- characterized by lack of roughness
- without any air gap between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- at room temperature
Magnet lifting force in use – key factors
- Gap (betwixt the magnet and the metal), since even a tiny clearance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or debris).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
- Steel type – low-carbon steel attracts best. Alloy steels lower magnetic properties and holding force.
- Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Roughness creates an air distance.
- Heat – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the lifting capacity is smaller. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.
Warnings
Machining danger
Combustion risk: Rare earth powder is highly flammable. Do not process magnets without safety gear as this may cause fire.
Material brittleness
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.
Safe distance
Do not bring magnets near a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.
Danger to pacemakers
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.
Permanent damage
Watch the temperature. Exposing the magnet to high heat will destroy its properties and pulling force.
Crushing force
Big blocks can crush fingers in a fraction of a second. Do not put your hand between two strong magnets.
Choking Hazard
Absolutely keep magnets away from children. Ingestion danger is high, and the consequences of magnets clamping inside the body are life-threatening.
Compass and GPS
Remember: neodymium magnets produce a field that confuses precision electronics. Maintain a separation from your mobile, device, and navigation systems.
Nickel allergy
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If an allergic reaction appears, immediately stop working with magnets and use protective gear.
Caution required
Handle magnets consciously. Their powerful strength can surprise even professionals. Be vigilant and do not underestimate their power.
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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