AM klisza magnetyczna 50 x 50 mm - magnetic accessories
magnetic accessories
Catalog no 080471
GTIN/EAN: 5906301812517
Weight
0.05 g
24.60 ZŁ with VAT / pcs + price for transport
20.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - AM klisza magnetyczna 50 x 50 mm - magnetic accessories
Specification / characteristics - AM klisza magnetyczna 50 x 50 mm - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080471 |
| GTIN/EAN | 5906301812517 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 0.05 g |
| 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 |
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 |
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Strengths and weaknesses of rare earth magnets.
Pros
- They retain magnetic properties for around ten years – the loss is just ~1% (based on simulations),
- Magnets very well protect themselves against loss of magnetization caused by external fields,
- The use of an refined layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnetic induction on the working part of the magnet is very high,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for action at temperatures reaching 230°C and above...
- Thanks to flexibility in shaping and the ability to customize to complex applications,
- Key role in advanced technology sectors – they serve a role in magnetic memories, brushless drives, precision medical tools, also modern systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Limitations
- Brittleness is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a steel housing, which not only protects them against impacts but also increases their durability
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. 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. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- Limited possibility of producing threads in the magnet and complex shapes - recommended is cover - magnetic holder.
- Health risk resulting from small fragments of magnets can be dangerous, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these magnets can be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets can be a barrier,
Pull force analysis
Detachment force of the magnet in optimal conditions – what contributes to it?
- with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
- whose thickness equals approx. 10 mm
- with a plane perfectly flat
- with zero gap (without coatings)
- for force applied at a right angle (in the magnet axis)
- at temperature approx. 20 degrees Celsius
Determinants of lifting force in real conditions
- Distance (betwixt the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or dirt).
- Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
- Base massiveness – too thin plate causes magnetic saturation, causing part of the flux to be lost to the other side.
- Material type – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
- Thermal factor – high temperature reduces magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on a smooth plate of optimal thickness, under perpendicular forces, however under shearing force the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.
Safe handling of NdFeB magnets
Protective goggles
NdFeB magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets leads to them cracking into small pieces.
Finger safety
Big blocks can smash fingers instantly. Under no circumstances put your hand betwixt two attracting surfaces.
Combustion hazard
Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Pacemakers
Medical warning: Strong magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.
Metal Allergy
Certain individuals experience a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Extended handling may cause a rash. We recommend wear protective gloves.
Safe operation
Handle magnets consciously. Their immense force can surprise even professionals. Be vigilant and respect their force.
Choking Hazard
Always keep magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are tragic.
Phone sensors
Be aware: neodymium magnets generate a field that confuses sensitive sensors. Keep a safe distance from your mobile, tablet, and navigation systems.
Protect data
Device Safety: Strong magnets can damage data carriers and delicate electronics (heart implants, medical aids, timepieces).
Operating temperature
Keep cool. Neodymium magnets are sensitive to heat. If you need operation above 80°C, ask us about special high-temperature series (H, SH, UH).
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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