UMS 32x10.5x5.5x8 / N38 - conical magnetic holder
conical magnetic holder
Catalog no 220329
GTIN/EAN: 5906301814191
Diameter Ø
32 mm [±1 mm]
cone dimension Ø
10.5x5.5 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
37 g
Magnetization Direction
↑ axial
Load capacity
25.00 kg / 245.17 N
Coating
[NiCuNi] Nickel
12.09 ZŁ with VAT / pcs + price for transport
9.83 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical of the product - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder
Specification / characteristics - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 220329 |
| GTIN/EAN | 5906301814191 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| cone dimension Ø | 10.5x5.5 mm [±1 mm] |
| Height | 8 mm [±1 mm] |
| Weight | 37 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 25.00 kg / 245.17 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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Pros and cons of neodymium magnets.
Advantages
- Their strength remains stable, and after approximately 10 years it drops only by ~1% (according to research),
- They have excellent resistance to weakening of magnetic properties due to external fields,
- Thanks to the metallic finish, the surface of nickel, gold, or silver-plated gives an visually attractive appearance,
- Neodymium magnets deliver maximum magnetic induction on a their surface, which allows for strong attraction,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
- Thanks to freedom in shaping and the ability to adapt to unusual requirements,
- Key role in advanced technology sectors – they are commonly used in magnetic memories, electric motors, medical equipment, as well as technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience 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 recommend using waterproof magnets e.g. in rubber, plastic
- Limited ability of producing threads in the magnet and complex shapes - recommended is casing - magnet mounting.
- Health risk resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small components of these magnets can complicate diagnosis medical when they are in the body.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Maximum magnetic pulling force – what it depends on?
- on a base made of mild steel, optimally conducting the magnetic flux
- possessing a massiveness of at least 10 mm to ensure full flux closure
- characterized by even structure
- with zero gap (no coatings)
- for force applied at a right angle (in the magnet axis)
- at temperature approx. 20 degrees Celsius
Determinants of practical lifting force of a magnet
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (typically approx. 20-30% of maximum force).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Material type – the best choice is pure iron steel. Hardened steels may attract less.
- Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Temperature – heating the magnet results in weakening of force. Check the thermal limit for a given model.
Lifting capacity was determined using a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate reduces the load capacity.
Safe handling of NdFeB magnets
This is not a toy
NdFeB magnets are not intended for children. Eating a few magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and requires urgent medical intervention.
Magnets are brittle
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.
Operating temperature
Standard neodymium magnets (N-type) lose power when the temperature exceeds 80°C. Damage is permanent.
Allergy Warning
Medical facts indicate that nickel (the usual finish) is a common allergen. If your skin reacts to metals, avoid direct skin contact or select encased magnets.
Implant safety
Individuals with a ICD should keep an large gap from magnets. The magnetic field can interfere with the functioning of the implant.
Threat to navigation
A powerful magnetic field disrupts the functioning of magnetometers in smartphones and navigation systems. Do not bring magnets near a device to prevent damaging the sensors.
Hand protection
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Do not underestimate power
Use magnets consciously. Their immense force can shock even experienced users. Be vigilant and respect their force.
Combustion hazard
Dust produced during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Cards and drives
Equipment safety: Strong magnets can damage payment cards and delicate electronics (heart implants, hearing aids, mechanical watches).
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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