UMC 32x11/3x8 / N38 - cylindrical magnetic holder
cylindrical magnetic holder
Catalog no 320409
GTIN/EAN: 5906301814658
Diameter
32 mm [±1 mm]
internal diameter Ø
11/3 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
36 g
Load capacity
23.00 kg / 225.55 N
Coating
[NiCuNi] Nickel
17.98 ZŁ with VAT / pcs + price for transport
14.62 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - UMC 32x11/3x8 / N38 - cylindrical magnetic holder
Specification / characteristics - UMC 32x11/3x8 / N38 - cylindrical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 320409 |
| GTIN/EAN | 5906301814658 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter | 32 mm [±1 mm] |
| internal diameter Ø | 11/3 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 36 g |
| Load capacity ~ ? | 23.00 kg / 225.55 N |
| Coating | [NiCuNi] Nickel |
| 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% |
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 Nd2Fe14B magnets.
Strengths
- They virtually do not lose strength, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- Magnets effectively protect themselves against demagnetization caused by foreign field sources,
- Thanks to the reflective finish, the layer of Ni-Cu-Ni, gold-plated, or silver-plated gives an clean appearance,
- Magnets possess very high magnetic induction on the outer layer,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Thanks to versatility in shaping and the capacity to adapt to unusual requirements,
- Versatile presence in advanced technology sectors – they find application in data components, electromotive mechanisms, advanced medical instruments, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Weaknesses
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 very resistant to heat
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in creating threads and complicated forms in magnets, we recommend using cover - magnetic holder.
- Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products are able to complicate diagnosis medical after entering the body.
- Due to expensive raw materials, their price exceeds standard values,
Pull force analysis
Maximum lifting force for a neodymium magnet – what contributes to it?
- using a sheet made of mild steel, serving as a circuit closing element
- possessing a thickness of minimum 10 mm to avoid saturation
- with a surface perfectly flat
- with total lack of distance (without coatings)
- for force acting at a right angle (in the magnet axis)
- at conditions approx. 20°C
Key elements affecting lifting force
- Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
- Smoothness – ideal contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity was measured with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the load capacity is reduced by as much as 75%. Moreover, even a small distance between the magnet’s surface and the plate lowers the holding force.
H&S for magnets
Material brittleness
Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.
Metal Allergy
It is widely known that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or choose encased magnets.
Machining danger
Drilling and cutting of NdFeB material poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.
Pacemakers
People with a ICD must keep an safe separation from magnets. The magnetic field can stop the operation of the implant.
Electronic hazard
Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (heart implants, medical aids, timepieces).
This is not a toy
These products are not toys. Accidental ingestion of multiple magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates urgent medical intervention.
Powerful field
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
Bodily injuries
Danger of trauma: The pulling power is so immense that it can cause blood blisters, pinching, and broken bones. Protective gloves are recommended.
Operating temperature
Standard neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.
Keep away from electronics
Note: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your mobile, tablet, and GPS.
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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