KM HF - 22 kg - magnetic bracket
magnetic bracket
Catalog no 170257
GTIN/EAN: 5906301813699
Weight
593 g
Load capacity
22.00 kg / 215.75 N
29.52 ZŁ with VAT / pcs + price for transport
24.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters as well as appearance of neodymium magnets can be reviewed with our
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Technical specification - KM HF - 22 kg - magnetic bracket
Specification / characteristics - KM HF - 22 kg - magnetic bracket
| properties | values |
|---|---|
| Cat. no. | 170257 |
| GTIN/EAN | 5906301813699 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 593 g |
| Load capacity ~ ? | 22.00 kg / 215.75 N |
| Manufacturing Tolerance | ±1 mm |
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.
Pros
- Their magnetic field remains stable, and after around 10 years it decreases only by ~1% (theoretically),
- Magnets perfectly resist against loss of magnetization caused by foreign field sources,
- Thanks to the shimmering finish, the surface of nickel, gold-plated, or silver gives an aesthetic appearance,
- Magnetic induction on the working layer of the magnet is very high,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Thanks to modularity in forming and the ability to modify to specific needs,
- Wide application in modern industrial fields – they serve a role in magnetic memories, motor assemblies, medical equipment, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in small systems
Limitations
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises 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 and 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 start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in producing nuts and complicated shapes in magnets, we recommend using casing - magnetic mount.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small components of these magnets can complicate diagnosis medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Holding force characteristics
Detachment force of the magnet in optimal conditions – what it depends on?
- on a base made of structural steel, optimally conducting the magnetic field
- whose transverse dimension equals approx. 10 mm
- characterized by lack of roughness
- with total lack of distance (no coatings)
- under axial force direction (90-degree angle)
- at temperature room level
Determinants of lifting force in real conditions
- Clearance – existence of any layer (paint, tape, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of nominal force).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Plate material – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which improves force. Uneven metal reduce efficiency.
- Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet and the plate reduces the load capacity.
Warnings
Dust is flammable
Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
Safe operation
Handle magnets consciously. Their huge power can shock even professionals. Plan your moves and do not underestimate their force.
Warning for heart patients
People with a heart stimulator must maintain an large gap from magnets. The magnetism can interfere with the functioning of the life-saving device.
Nickel allergy
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation occurs, immediately stop handling magnets and wear gloves.
Danger to the youngest
Always keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are tragic.
GPS Danger
Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Do not overheat magnets
Control the heat. Exposing the magnet to high heat will ruin its properties and strength.
Shattering risk
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Threat to electronics
Intense magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Crushing risk
Pinching hazard: The pulling power is so immense that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.
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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