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SM 18x150 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130271
GTIN/EAN: 5906301812739
Diameter Ø
18 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
332.10 ZŁ with VAT / pcs + price for transport
270.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters along with structure of neodymium magnets can be verified using our
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Physical properties - SM 18x150 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x150 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130271 |
| GTIN/EAN | 5906301812739 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 5 400 Gauss [±5%] |
| Size/Mount Quantity | 2xM5 |
| Polarity | circumferential - 7 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 |
Table 1: Rod construction
SM 18x150 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 150 | mm (L) |
| Active length | 114 | mm |
| Section count | 4 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~290 | g |
| Active area | 64 | cm² (Area) |
| Housing material | AISI 304 | 1.4301 (Inox) |
| Surface finish | Ra < 0.8 µm | Polished |
| Temp. class | 80°C | Standard (N) |
| Force loss (at max °C) | -12.8% | Reversible loss (physics) |
| Force (calculated) | 3.8 | kg (theor.) |
| Induction (surface) | ~5 400 | Gauss (Max) |
Chart 2: Field profile (4 sections)
Chart 3: Temperature performance
Material specification
| 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
- They do not lose strength, even during nearly ten years – the decrease in strength is only ~1% (according to tests),
- Magnets effectively defend themselves against demagnetization caused by foreign field sources,
- Thanks to the shimmering finish, the coating of nickel, gold-plated, or silver gives an professional appearance,
- Neodymium magnets generate maximum magnetic induction on a small surface, which ensures high operational effectiveness,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Thanks to flexibility in shaping and the capacity to customize to client solutions,
- Universal use in innovative solutions – they are commonly used in hard drives, electromotive mechanisms, advanced medical instruments, also other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape as well as 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
- They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited ability of producing nuts in the magnet and complex shapes - recommended is a housing - magnetic holder.
- Health risk resulting from small fragments of magnets pose a threat, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these products can complicate diagnosis medical in case of swallowing.
- With budget limitations the cost of neodymium magnets can be a barrier,
Lifting parameters
Maximum lifting capacity of the magnet – what contributes to it?
- using a base made of mild steel, serving as a circuit closing element
- with a thickness minimum 10 mm
- with an polished touching surface
- without the slightest air gap between the magnet and steel
- under perpendicular force direction (90-degree angle)
- in temp. approx. 20°C
Practical lifting capacity: influencing factors
- Clearance – the presence of any layer (paint, dirt, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Steel grade – the best choice is high-permeability steel. Hardened steels may have worse magnetic properties.
- Surface finish – ideal contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.
Safe handling of neodymium magnets
GPS and phone interference
Remember: rare earth magnets generate a field that confuses precision electronics. Maintain a safe distance from your mobile, device, and navigation systems.
Metal Allergy
Studies show that the nickel plating (standard magnet coating) is a common allergen. If you have an allergy, avoid direct skin contact or choose encased magnets.
Danger to the youngest
Only for adults. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep out of reach of children and animals.
Keep away from computers
Avoid bringing magnets close to a wallet, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.
Medical interference
Patients with a pacemaker should keep an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.
Bone fractures
Risk of injury: The pulling power is so great that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.
Power loss in heat
Keep cool. NdFeB magnets are sensitive to heat. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).
Combustion hazard
Dust created during machining of magnets is flammable. Do not drill into magnets unless you are an expert.
Fragile material
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets will cause them cracking into small pieces.
Do not underestimate power
Use magnets consciously. Their powerful strength can surprise even professionals. Plan your moves and do not underestimate their power.
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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