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SM 18x125 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130270
GTIN/EAN: 5906301812722
Diameter Ø
18 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
276.75 ZŁ with VAT / pcs + price for transport
225.00 ZŁ net + 23% VAT / pcs
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Technical - SM 18x125 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x125 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130270 |
| GTIN/EAN | 5906301812722 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 125 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 - 6 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 18x125 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~242 | g |
| Active area | 50 | 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 (3 sections)
Chart 3: Temperature performance
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% |
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.
Pros
- They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- Magnets very well defend themselves against demagnetization caused by external fields,
- By using a reflective coating of gold, the element gains an aesthetic look,
- Magnetic induction on the working layer of the magnet turns out to be extremely intense,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
- Considering the option of accurate molding and customization to unique needs, NdFeB magnets can be created in a wide range of forms and dimensions, which makes them more universal,
- Wide application in future technologies – they are used in magnetic memories, drive modules, medical devices, as well as complex engineering applications.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength 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
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Limited ability of creating nuts in the magnet and complex forms - recommended is cover - mounting mechanism.
- Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these products are able to disrupt the diagnostic process medical in case of swallowing.
- With large orders the cost of neodymium magnets is a challenge,
Holding force characteristics
Magnetic strength at its maximum – what it depends on?
- with the application of a sheet made of special test steel, ensuring full magnetic saturation
- whose transverse dimension reaches at least 10 mm
- with an polished touching surface
- under conditions of ideal adhesion (surface-to-surface)
- during detachment in a direction vertical to the plane
- at room temperature
Lifting capacity in practice – influencing factors
- Distance (between the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or debris).
- Direction of force – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly many times smaller (approx. 1/5 of the lifting capacity).
- Steel thickness – too thin sheet does not close the flux, causing part of the flux to be lost to the other side.
- Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
- Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
- Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was determined by applying a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Safety rules for work with NdFeB magnets
GPS and phone interference
A powerful magnetic field disrupts the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.
Finger safety
Big blocks can break fingers in a fraction of a second. Never place your hand between two attracting surfaces.
Magnets are brittle
Protect your eyes. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Operating temperature
Keep cool. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
Electronic hazard
Equipment safety: Strong magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Nickel coating and allergies
A percentage of the population experience a contact allergy to Ni, which is the standard coating for neodymium magnets. Extended handling can result in skin redness. We recommend use safety gloves.
Machining danger
Machining of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Danger to pacemakers
Warning for patients: Strong magnetic fields affect electronics. Keep at least 30 cm distance or request help to work with the magnets.
Handling guide
Before starting, read the rules. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.
This is not a toy
These products are not suitable for play. Eating multiple magnets may result in them connecting inside the digestive tract, which poses a critical condition and requires immediate surgery.
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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