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SM 32x225 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130375
GTIN/EAN: 5906301813231
Diameter Ø
32 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
1245 g
Magnetic Flux
~ 8 000 Gauss [±5%]
848.70 ZŁ with VAT / pcs + price for transport
690.00 ZŁ net + 23% VAT / pcs
610.00 ZŁ net was the lowest price in the last 30 days
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Technical data of the product - SM 32x225 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x225 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130375 |
| GTIN/EAN | 5906301813231 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 1245 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 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 32x225 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1375 | g |
| Active area | 190 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (8 sections)
Chart 3: Temperature performance
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths and weaknesses of neodymium magnets.
Advantages
- Their magnetic field is maintained, and after around 10 years it decreases only by ~1% (according to research),
- They are extremely resistant to demagnetization induced by external field influence,
- Thanks to the shiny finish, the plating of Ni-Cu-Ni, gold-plated, or silver gives an elegant appearance,
- Magnetic induction on the working layer of the magnet turns out to be extremely intense,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
- Thanks to versatility in constructing and the ability to modify to complex applications,
- Significant place in modern technologies – they are utilized in hard drives, electric drive systems, medical equipment, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in compact constructions
Weaknesses
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation as well as corrosion.
- We recommend cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complicated shapes.
- Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical in case of swallowing.
- With large orders the cost of neodymium magnets is a challenge,
Lifting parameters
Highest magnetic holding force – what affects it?
- with the application of a sheet made of special test steel, guaranteeing full magnetic saturation
- whose transverse dimension equals approx. 10 mm
- characterized by lack of roughness
- without any air gap between the magnet and steel
- during pulling in a direction perpendicular to the mounting surface
- at conditions approx. 20°C
What influences lifting capacity in practice
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Force direction – catalog parameter refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
- Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
- Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
Safety rules for work with NdFeB magnets
Shattering risk
NdFeB magnets are ceramic materials, meaning they are very brittle. Impact of two magnets will cause them shattering into shards.
Allergy Warning
It is widely known that nickel (the usual finish) is a common allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or choose versions in plastic housing.
Danger to pacemakers
Warning for patients: Powerful magnets affect electronics. Maintain minimum 30 cm distance or ask another person to work with the magnets.
Handling rules
Handle magnets with awareness. Their immense force can shock even experienced users. Stay alert and respect their power.
Do not overheat magnets
Keep cool. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, look for HT versions (H, SH, UH).
GPS Danger
A powerful magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.
Electronic hazard
Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, medical aids, mechanical watches).
Pinching danger
Risk of injury: The pulling power is so immense that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Do not give to children
Absolutely store magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are very dangerous.
Machining danger
Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this may cause fire.
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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