UMS 75x19x10.5x18 / N38 - conical magnetic holder
conical magnetic holder
Catalog no 220405
GTIN/EAN: 5906301814245
Diameter Ø
75 mm [±1 mm]
cone dimension Ø
19x10.5 mm [±1 mm]
Height
18 mm [±1 mm]
Weight
465 g
Magnetization Direction
↑ axial
Load capacity
162.00 kg / 1588.68 N
Coating
[NiCuNi] Nickel
125.56 ZŁ with VAT / pcs + price for transport
102.08 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - UMS 75x19x10.5x18 / N38 - conical magnetic holder
Specification / characteristics - UMS 75x19x10.5x18 / N38 - conical magnetic holder
| properties | values |
|---|---|
| Cat. no. | 220405 |
| GTIN/EAN | 5906301814245 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 75 mm [±1 mm] |
| cone dimension Ø | 19x10.5 mm [±1 mm] |
| Height | 18 mm [±1 mm] |
| Weight | 465 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 162.00 kg / 1588.68 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 |
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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Pros as well as cons of rare earth magnets.
Pros
- They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
- Magnets effectively defend themselves against demagnetization caused by ambient magnetic noise,
- In other words, due to the shiny layer of silver, the element gains a professional look,
- The surface of neodymium magnets generates a unique magnetic field – this is a distinguishing feature,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Considering the ability of flexible shaping and adaptation to unique needs, magnetic components can be created in a variety of forms and dimensions, which increases their versatility,
- Huge importance in modern industrial fields – they find application in computer drives, brushless drives, advanced medical instruments, as well as industrial machines.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- To avoid cracks under impact, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- NdFeB magnets lose force 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 extremely resistant to heat
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We suggest casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complicated forms.
- Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these devices can be problematic in diagnostics medical when they are in the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Pull force analysis
Maximum magnetic pulling force – what affects it?
- using a base made of mild steel, acting as a ideal flux conductor
- possessing a thickness of minimum 10 mm to avoid saturation
- with a plane cleaned and smooth
- with total lack of distance (no paint)
- under axial application of breakaway force (90-degree angle)
- at temperature approx. 20 degrees Celsius
Practical lifting capacity: influencing factors
- Distance (betwixt the magnet and the metal), since even a tiny distance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
- Direction of force – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Steel type – mild steel gives the best results. Alloy steels reduce magnetic properties and lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
- Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the load capacity.
Safe handling of NdFeB magnets
Adults only
Only for adults. Tiny parts pose a choking risk, leading to serious injuries. Store away from kids and pets.
Precision electronics
Remember: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your phone, device, and navigation systems.
Protective goggles
NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets will cause them breaking into shards.
Power loss in heat
Standard neodymium magnets (grade N) lose magnetization when the temperature surpasses 80°C. Damage is permanent.
Hand protection
Risk of injury: The pulling power is so immense that it can result in hematomas, crushing, and broken bones. Use thick gloves.
Fire warning
Mechanical processing of neodymium magnets poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Medical implants
For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or request help to work with the magnets.
Handling guide
Be careful. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.
Avoid contact if allergic
Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop handling magnets and use protective gear.
Keep away from computers
Intense magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.
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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