![Magnetic holder with internal thread UMGW 42x20x9 [M6] GW / N38](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Magnetic holder with internal thread UMGW 42x20x9 [M6] GW / N38")
![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 - ujęcie 2](https://cdn3.dhit.pl/graphics/products/umgw-42x20x9-m8-gw-vam.jpg)
UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread
magnetic holder internal thread
Catalog no 180320
GTIN/EAN: 5906301813767
Diameter Ø
42 mm [±1 mm]
Height
20 mm [±1 mm]
Height
9 mm [±1 mm]
Weight
78 g
Load capacity
66.00 kg / 647.24 N
33.95 ZŁ with VAT / pcs + price for transport
27.60 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us
+48 22 499 98 98
or contact us by means of
form
our website.
Weight along with structure of magnetic components can be estimated using our
modular calculator.
Same-day processing for orders placed before 14:00.
Technical of the product - UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread
Specification / characteristics - UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread
| properties | values |
|---|---|
| Cat. no. | 180320 |
| GTIN/EAN | 5906301813767 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 42 mm [±1 mm] |
| Height | 20 mm [±1 mm] |
| Height | 9 mm [±1 mm] |
| Weight | 78 g |
| Load capacity ~ ? | 66.00 kg / 647.24 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 |
Elemental analysis
| 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 products
Advantages and disadvantages of Nd2Fe14B magnets.
Advantages
- They have constant strength, and over more than ten years their attraction force decreases symbolically – ~1% (according to theory),
- Magnets effectively resist against loss of magnetization caused by foreign field sources,
- In other words, due to the aesthetic finish of nickel, the element gains visual value,
- The surface of neodymium magnets generates a maximum magnetic field – this is a distinguishing feature,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Considering the ability of flexible molding and customization to specialized requirements, neodymium magnets can be created in a variety of forms and dimensions, which amplifies use scope,
- Universal use in high-tech industry – they are used in hard drives, brushless drives, medical devices, also industrial machines.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening 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.
- We recommend a housing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex forms.
- Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, tiny parts of these devices can disrupt the diagnostic process medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Maximum lifting force for a neodymium magnet – what it depends on?
- with the application of a yoke made of special test steel, guaranteeing maximum field concentration
- with a thickness minimum 10 mm
- with an ground contact surface
- with zero gap (no impurities)
- during detachment in a direction vertical to the plane
- at temperature room level
Determinants of lifting force in real conditions
- Distance (betwixt the magnet and the metal), because even a tiny distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick steel does not accept the full field, causing part of the power to be wasted into the air.
- Steel grade – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
- Surface structure – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, however under shearing force the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.
Warnings
Nickel allergy
Certain individuals have a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching can result in dermatitis. We strongly advise wear protective gloves.
Conscious usage
Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
Cards and drives
Data protection: Neodymium magnets can damage payment cards and delicate electronics (heart implants, medical aids, timepieces).
Warning for heart patients
Warning for patients: Powerful magnets disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.
Thermal limits
Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Magnet fragility
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Impact of two magnets will cause them breaking into shards.
GPS Danger
GPS units and smartphones are highly susceptible to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.
Pinching danger
Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Mechanical processing
Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Product not for children
Strictly keep magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are tragic.
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
Rate the product
Your rating