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UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread
magnetic holder external thread
Catalog no 190324
GTIN/EAN: 5906301813835
Diameter Ø
32 mm [±1 mm]
Height
18 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
40 g
Load capacity
34.00 kg / 333.43 N
17.98 ZŁ with VAT / pcs + price for transport
14.62 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread
Specification / characteristics - UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread
| properties | values |
|---|---|
| Cat. no. | 190324 |
| GTIN/EAN | 5906301813835 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 40 g |
| Load capacity ~ ? | 34.00 kg / 333.43 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 |
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Advantages as well as disadvantages of neodymium magnets.
Advantages
- Their magnetic field remains stable, and after around 10 years it decreases only by ~1% (according to research),
- Magnets perfectly resist against demagnetization caused by ambient magnetic noise,
- By covering with a lustrous coating of gold, the element gains an modern look,
- Neodymium magnets generate maximum magnetic induction on a small area, which ensures high operational effectiveness,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Possibility of individual modeling as well as adjusting to concrete applications,
- Versatile presence in advanced technology sectors – they find application in data components, electric drive systems, precision medical tools, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in miniature devices
Cons
- Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (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 very resistant to heat
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Limited possibility of creating threads in the magnet and complicated shapes - preferred is a housing - magnetic holder.
- Potential hazard related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets can complicate diagnosis medical in case of swallowing.
- With large orders the cost of neodymium magnets is a challenge,
Pull force analysis
Maximum holding power of the magnet – what affects it?
- using a base made of high-permeability steel, serving as a circuit closing element
- with a cross-section minimum 10 mm
- with an ideally smooth contact surface
- with total lack of distance (no paint)
- for force acting at a right angle (in the magnet axis)
- in neutral thermal conditions
Practical aspects of lifting capacity – factors
- Air gap (between the magnet and the metal), because even a tiny distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Material type – ideal substrate is pure iron steel. Stainless steels may attract less.
- Surface quality – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Operating temperature – 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).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the holding force is lower. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
Safe handling of NdFeB magnets
Cards and drives
Device Safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, timepieces).
ICD Warning
Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Safe operation
Be careful. Rare earth magnets attract from a long distance and connect with huge force, often faster than you can move away.
Pinching danger
Big blocks can smash fingers in a fraction of a second. Never place your hand between two attracting surfaces.
This is not a toy
Product intended for adults. Small elements pose a choking risk, leading to severe trauma. Store out of reach of children and animals.
Power loss in heat
Watch the temperature. Exposing the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.
Dust is flammable
Drilling and cutting of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Warning for allergy sufferers
Studies show that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from direct skin contact and choose versions in plastic housing.
Compass and GPS
Be aware: neodymium magnets produce a field that confuses precision electronics. Maintain a separation from your phone, tablet, and navigation systems.
Shattering risk
Despite the nickel coating, neodymium is delicate and not impact-resistant. 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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