NCM 30x13.5x5 / N38 - channel magnetic holder
channel magnetic holder
Catalog no 360488
GTIN/EAN: 5906301814870
Diameter Ø
30 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
14 g
Magnetization Direction
↑ axial
Load capacity
16.00 kg / 156.91 N
Coating
[NiCuNi] Nickel
9.40 ZŁ with VAT / pcs + price for transport
7.64 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - NCM 30x13.5x5 / N38 - channel magnetic holder
Specification / characteristics - NCM 30x13.5x5 / N38 - channel magnetic holder
| properties | values |
|---|---|
| Cat. no. | 360488 |
| GTIN/EAN | 5906301814870 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 30 mm [±1 mm] |
| Height | 13.5 mm [±1 mm] |
| Weight | 14 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 16.00 kg / 156.91 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 |
Other deals
Strengths as well as weaknesses of neodymium magnets.
Advantages
- They retain attractive force for around 10 years – the drop is just ~1% (in theory),
- They feature excellent resistance to magnetism drop when exposed to opposing magnetic fields,
- By covering with a smooth layer of silver, the element presents an nice look,
- The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Possibility of individual forming as well as modifying to complex conditions,
- Universal use in modern industrial fields – they serve a role in data components, electric drive systems, advanced medical instruments, also modern systems.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Disadvantages
- To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- 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 secure oxidation and corrosion.
- Limited ability of producing threads in the magnet and complex shapes - recommended is a housing - mounting mechanism.
- Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small components of these products can be problematic in diagnostics medical in case of swallowing.
- Due to complex production process, their price is relatively high,
Holding force characteristics
Detachment force of the magnet in optimal conditions – what contributes to it?
- using a plate made of low-carbon steel, serving as a magnetic yoke
- with a cross-section no less than 10 mm
- with a plane free of scratches
- without the slightest insulating layer between the magnet and steel
- under axial application of breakaway force (90-degree angle)
- in stable room temperature
Practical lifting capacity: influencing factors
- Distance (between the magnet and the metal), because even a tiny distance (e.g. 0.5 mm) results in a decrease in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
- Angle of force application – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Chemical composition of the base – mild steel attracts best. Alloy steels decrease magnetic permeability and lifting capacity.
- Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
- Temperature – temperature increase results in weakening of induction. It is worth remembering the thermal limit for a given model.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate reduces the lifting capacity.
Safe handling of neodymium magnets
Heat warning
Control the heat. Heating the magnet above 80 degrees Celsius will ruin its magnetic structure and strength.
Protect data
Very strong magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Maintain a gap of min. 10 cm.
Choking Hazard
Strictly store magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are tragic.
Fire warning
Fire hazard: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.
Crushing force
Danger of trauma: The attraction force is so immense that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.
Keep away from electronics
Remember: neodymium magnets produce a field that confuses sensitive sensors. Maintain a separation from your phone, tablet, and GPS.
Material brittleness
NdFeB magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them breaking into small pieces.
Allergy Warning
Some people suffer from a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Frequent touching might lead to skin redness. We suggest wear protective gloves.
Respect the power
Use magnets consciously. Their powerful strength can surprise even experienced users. Be vigilant and respect their power.
Medical implants
Patients with a heart stimulator should keep an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.
