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SM 25x150 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130368
GTIN/EAN: 5906301813163
Diameter Ø
25 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
560 g
Magnetic Flux
~ 8 500 Gauss [±5%]
467.40 ZŁ with VAT / pcs + price for transport
380.00 ZŁ net + 23% VAT / pcs
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Product card - SM 25x150 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x150 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130368 |
| GTIN/EAN | 5906301813163 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 560 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 5 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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 25x150 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 150 | mm (L) |
| Active length | 114 | mm |
| Section count | 4 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~560 | g |
| Active area | 90 | 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) | 18.1 | kg (theor.) |
| Induction (surface) | ~8 500 | Gauss (Max) |
Chart 2: Field profile (4 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 Nd2Fe14B magnets.
Pros
- They do not lose strength, even over approximately 10 years – the drop in power is only ~1% (according to tests),
- They feature excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
- The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- The surface of neodymium magnets generates a intense 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...
- Thanks to versatility in designing and the capacity to adapt to unusual requirements,
- Key role in electronics industry – they find application in computer drives, electric motors, advanced medical instruments, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices
Weaknesses
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a strong case, which not only secures them against impacts but also increases their durability
- Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- We suggest a housing - magnetic holder, due to difficulties in creating threads inside the magnet and complex shapes.
- Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these magnets can complicate diagnosis medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Lifting parameters
Breakaway strength of the magnet in ideal conditions – what affects it?
- on a block made of mild steel, effectively closing the magnetic flux
- whose thickness reaches at least 10 mm
- with an ideally smooth contact surface
- with total lack of distance (no coatings)
- under vertical force vector (90-degree angle)
- in temp. approx. 20°C
Lifting capacity in practice – influencing factors
- Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
- Base massiveness – too thin steel causes magnetic saturation, causing part of the flux to be escaped into the air.
- Chemical composition of the base – mild steel gives the best results. Higher carbon content lower magnetic permeability and lifting capacity.
- Surface quality – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
- Thermal environment – temperature increase causes a temporary drop of force. Check the maximum operating temperature for a given model.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the holding force.
Safe handling of NdFeB magnets
Bodily injuries
Pinching hazard: The attraction force is so great that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.
Nickel coating and allergies
Certain individuals suffer from a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to dermatitis. It is best to wear safety gloves.
Heat sensitivity
Do not overheat. Neodymium magnets are susceptible to temperature. If you require operation above 80°C, ask us about HT versions (H, SH, UH).
Immense force
Use magnets with awareness. Their huge power can surprise even experienced users. Stay alert and do not underestimate their power.
Fire warning
Powder created during grinding of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
Magnetic interference
Be aware: rare earth magnets produce a field that disrupts precision electronics. Maintain a separation from your phone, tablet, and navigation systems.
Keep away from computers
Equipment safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).
Risk of cracking
Despite the nickel coating, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Do not give to children
Only for adults. Small elements pose a choking risk, leading to severe trauma. Store out of reach of kids and pets.
Health Danger
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
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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