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AM szekla [M10] - magnetic accessories
magnetic accessories
Catalog no 080267
GTIN/EAN: 5906301812463
- Weight
- 118 g
How we measure these parameters — certificates and measurements
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Technical specification - AM szekla [M10] - magnetic accessories
Specification / characteristics - AM szekla [M10] - magnetic accessories
| properties | values |
|---|---|
| Cat. no. | 080267 |
| GTIN/EAN | 5906301812463 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Weight | 118 g |
| Load capacity ~ ? | 320.00 kg / 3138.13 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 | 310 | °C |
| Curie Temperature TF | 590 | °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 products
Pros and cons of Nd2Fe14B magnets.
Strengths
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- They retain their magnetic properties even under strong external field,
- By covering with a reflective coating of gold, the element gains an nice look,
- They feature high magnetic induction at the operating surface, which affects their effectiveness,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Thanks to flexibility in designing and the ability to modify to specific needs,
- Fundamental importance in electronics industry – they are utilized in magnetic memories, motor assemblies, diagnostic systems, also other advanced devices.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Disadvantages
- Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited ability of making nuts in the magnet and complicated forms - preferred is cover - magnet mounting.
- Health risk resulting from small fragments of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these magnets are able to be problematic in diagnostics medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Best holding force of the magnet in ideal parameters – what it depends on?
- on a plate made of structural steel, perfectly concentrating the magnetic flux
- with a thickness of at least 10 mm
- characterized by even structure
- under conditions of gap-free contact (surface-to-surface)
- for force applied at a right angle (pull-off, not shear)
- in neutral thermal conditions
Determinants of practical lifting force of a magnet
- Gap (between the magnet and the plate), as even a very small distance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
- Material composition – different alloys reacts the same. High carbon content weaken the attraction effect.
- Surface finish – ideal contact is possible only on polished steel. Rough texture create air cushions, reducing force.
- Temperature influence – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was assessed with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate reduces the lifting capacity.
Safe handling of neodymium magnets
Do not underestimate power
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Mechanical processing
Mechanical processing of NdFeB material poses a fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Danger to the youngest
Absolutely keep magnets away from children. Ingestion danger is significant, and the effects of magnets clamping inside the body are tragic.
GPS and phone interference
An intense magnetic field disrupts the operation of magnetometers in smartphones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.
Metal Allergy
Studies show that nickel (the usual finish) is a common allergen. For allergy sufferers, refrain from direct skin contact or opt for coated magnets.
Magnets are brittle
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Crushing force
Protect your hands. Two large magnets will snap together instantly with a force of massive weight, destroying everything in their path. Be careful!
Danger to pacemakers
Warning for patients: Powerful magnets disrupt electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.
Threat to electronics
Do not bring magnets near a wallet, computer, or screen. The magnetic field can destroy these devices and wipe information from cards.
Heat warning
Control the heat. Exposing the magnet to high heat will permanently weaken its properties and strength.
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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