NCM 40x13.5x5 / N38 - channel magnetic holder
channel magnetic holder
Catalog no 360489
GTIN/EAN: 5906301814887
Diameter Ø
40 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
18.4 g
Magnetization Direction
↑ axial
Load capacity
17.00 kg / 166.71 N
Coating
[NiCuNi] Nickel
14.19 ZŁ with VAT / pcs + price for transport
11.54 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters as well as shape of a neodymium magnet can be calculated using our
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Technical parameters of the product - NCM 40x13.5x5 / N38 - channel magnetic holder
Specification / characteristics - NCM 40x13.5x5 / N38 - channel magnetic holder
| properties | values |
|---|---|
| Cat. no. | 360489 |
| GTIN/EAN | 5906301814887 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 40 mm [±1 mm] |
| Height | 13.5 mm [±1 mm] |
| Weight | 18.4 g |
| Magnetization Direction | ↑ axial |
| Load capacity ~ ? | 17.00 kg / 166.71 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% |
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 neodymium magnets.
Advantages
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (according to literature),
- They possess excellent resistance to magnetism drop due to external magnetic sources,
- Thanks to the smooth finish, the plating 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,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Thanks to flexibility in forming and the ability to modify to unusual requirements,
- Huge importance in future technologies – they are used in HDD drives, electric motors, advanced medical instruments, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in compact constructions
Limitations
- At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic mount.
- Potential hazard to health – tiny shards of magnets are risky, if swallowed, 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.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities
Holding force characteristics
Maximum magnetic pulling force – what affects it?
- using a base made of high-permeability steel, acting as a magnetic yoke
- possessing a thickness of minimum 10 mm to avoid saturation
- with an ideally smooth contact surface
- under conditions of no distance (metal-to-metal)
- for force applied at a right angle (in the magnet axis)
- at conditions approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Clearance – existence of foreign body (paint, tape, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
- Plate thickness – insufficiently thick steel causes magnetic saturation, causing part of the flux to be escaped to the other side.
- Chemical composition of the base – low-carbon steel gives the best results. Higher carbon content decrease magnetic properties and lifting capacity.
- Smoothness – full contact is obtained only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
- Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Safe handling of neodymium magnets
Medical interference
People with a ICD have to maintain an safe separation from magnets. The magnetism can disrupt the functioning of the life-saving device.
Beware of splinters
NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Clashing of two magnets will cause them shattering into small pieces.
Respect the power
Use magnets with awareness. Their huge power can surprise even professionals. Stay alert and respect their force.
Threat to navigation
Remember: neodymium magnets generate a field that confuses sensitive sensors. Maintain a safe distance from your mobile, device, and GPS.
Avoid contact if allergic
Some people suffer from a sensitization to nickel, which is the common plating for neodymium magnets. Frequent touching may cause skin redness. We suggest use safety gloves.
No play value
Strictly keep magnets out of reach of children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are life-threatening.
Fire risk
Dust created during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.
Data carriers
Data protection: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, mechanical watches).
Bodily injuries
Protect your hands. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Heat warning
Keep cool. NdFeB magnets are susceptible to temperature. If you need operation above 80°C, inquire about HT versions (H, SH, UH).
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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