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UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread
magnetic holder internal thread
Catalog no 180420
GTIN/EAN: 5906301813798
Diameter Ø
75 mm [±1 mm]
Height
33 mm [±1 mm]
Height
18 mm [±1 mm]
Weight
475 g
Magnetization Direction
↑ axial
Load capacity
162.00 kg / 1588.68 N
Coating
[NiCuNi] Nickel
189.91 ZŁ with VAT / pcs + price for transport
154.40 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical data of the product - UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread
Specification / characteristics - UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread
| properties | values |
|---|---|
| Cat. no. | 180420 |
| GTIN/EAN | 5906301813798 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 75 mm [±1 mm] |
| Height | 33 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Weight | 475 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 162.00 kg / 1588.68 N |
| Coating | [NiCuNi] Nickel |
| 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 |
Material specification
| 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 |
Other deals
Pros as well as cons of rare earth magnets.
Pros
- They retain attractive force for almost 10 years – the loss is just ~1% (in theory),
- They possess excellent resistance to weakening of magnetic properties due to external fields,
- A magnet with a metallic gold surface looks better,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Considering the possibility of flexible forming and customization to custom needs, magnetic components can be produced in a variety of geometric configurations, which increases their versatility,
- Huge importance in future technologies – they are utilized in data components, motor assemblies, advanced medical instruments, also multitasking production systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also increases their durability
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 extremely resistant to heat
- When exposed to humidity, magnets usually 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.
- Due to limitations in producing nuts and complicated forms in magnets, we recommend using casing - magnetic mount.
- Possible danger resulting from small fragments of magnets are risky, in case of ingestion, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these magnets can disrupt the diagnostic process medical after entering the body.
- With budget limitations the cost of neodymium magnets is economically unviable,
Holding force characteristics
Maximum lifting capacity of the magnet – what it depends on?
- using a base made of mild steel, acting as a magnetic yoke
- whose thickness reaches at least 10 mm
- with an ground contact surface
- under conditions of ideal adhesion (surface-to-surface)
- under perpendicular application of breakaway force (90-degree angle)
- in neutral thermal conditions
Practical aspects of lifting capacity – factors
- Air gap (betwixt the magnet and the plate), as even a very small clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
- Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Plate material – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and lifting capacity.
- Plate texture – ground elements guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
- Temperature influence – high temperature weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.
Precautions when working with neodymium magnets
Hand protection
Big blocks can break fingers in a fraction of a second. Never put your hand betwixt two strong magnets.
Swallowing risk
NdFeB magnets are not toys. Accidental ingestion of a few magnets can lead to them attracting across intestines, which poses a severe health hazard and necessitates immediate surgery.
Threat to navigation
An intense magnetic field interferes with the operation of compasses in phones and GPS navigation. Maintain magnets near a device to avoid damaging the sensors.
Heat warning
Control the heat. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.
Electronic devices
Avoid bringing magnets near a purse, laptop, or TV. The magnetism can irreversibly ruin these devices and wipe information from cards.
Magnet fragility
Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Flammability
Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.
Warning for allergy sufferers
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness happens, cease working with magnets and use protective gear.
Implant safety
Life threat: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Immense force
Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.
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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