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UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
magnetic holder rubber internal thread
Catalog no 160307
GTIN/EAN: 5906301813651
Diameter Ø
43 mm [±1 mm]
Height
6 mm [±1 mm]
Weight
29 g
Load capacity
8.70 kg / 85.32 N
10.46 ZŁ with VAT / pcs + price for transport
8.50 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power as well as shape of neodymium magnets can be analyzed on our
power calculator.
Orders placed before 14:00 will be shipped the same business day.
Product card - UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
Specification / characteristics - UMGGW 43x6 [M4] GW / N38 - magnetic holder rubber internal thread
| properties | values |
|---|---|
| Cat. no. | 160307 |
| GTIN/EAN | 5906301813651 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 43 mm [±1 mm] |
| Height | 6 mm [±1 mm] |
| Weight | 29 g |
| Load capacity ~ ? | 8.70 kg / 85.32 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 neodymium magnets.
Benefits
- They retain magnetic properties for almost ten years – the drop is just ~1% (in theory),
- Magnets perfectly resist against loss of magnetization caused by external fields,
- Thanks to the shimmering finish, the plating of Ni-Cu-Ni, gold-plated, or silver-plated gives an modern appearance,
- Magnetic induction on the surface of the magnet turns out to be very high,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Due to the potential of free forming and adaptation to unique needs, magnetic components can be manufactured in a wide range of shapes and sizes, which amplifies use scope,
- Wide application in innovative solutions – they are utilized in computer drives, electric drive systems, advanced medical instruments, as well as other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Cons
- At strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Limited ability of making nuts in the magnet and complicated forms - recommended is casing - mounting mechanism.
- Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these products can be problematic in diagnostics medical when they are in the body.
- Due to complex production process, their price is higher than average,
Holding force characteristics
Maximum lifting force for a neodymium magnet – what affects it?
- on a block made of structural steel, perfectly concentrating the magnetic field
- possessing a thickness of at least 10 mm to avoid saturation
- characterized by even structure
- without any insulating layer between the magnet and steel
- during detachment in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
Determinants of lifting force in real conditions
- Air gap (between the magnet and the metal), as even a tiny clearance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Metal type – different alloys reacts the same. High carbon content weaken the interaction with the magnet.
- Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
- Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was measured with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the load capacity is reduced by as much as 75%. In addition, even a small distance between the magnet’s surface and the plate reduces the holding force.
Safety rules for work with neodymium magnets
Powerful field
Handle magnets with awareness. Their immense force can surprise even experienced users. Plan your moves and do not underestimate their power.
Keep away from electronics
Be aware: rare earth magnets generate a field that confuses precision electronics. Keep a safe distance from your mobile, tablet, and GPS.
Bodily injuries
Pinching hazard: The attraction force is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Health Danger
Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Magnet fragility
Neodymium magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them cracking into small pieces.
Heat sensitivity
Standard neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.
Data carriers
Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can permanently damage these devices and erase data from cards.
Fire warning
Dust created during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.
Adults only
Absolutely store magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are very dangerous.
Allergic reactions
Nickel alert: The nickel-copper-nickel coating consists of nickel. If skin irritation appears, immediately stop working with magnets and use protective gear.
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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