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SM 25x125 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130367
GTIN/EAN: 5906301813156
Diameter Ø
25 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
460 g
Magnetic Flux
~ 8 500 Gauss [±5%]
418.20 ZŁ with VAT / pcs + price for transport
340.00 ZŁ net + 23% VAT / pcs
320.00 ZŁ net was the lowest price in the last 30 days
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Product card - SM 25x125 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x125 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130367 |
| GTIN/EAN | 5906301813156 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 460 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 4 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 25x125 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~466 | g |
| Active area | 70 | 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 (3 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also proposals
Pros as well as cons of rare earth magnets.
Benefits
- Their magnetic field is maintained, and after around 10 years it drops only by ~1% (theoretically),
- They retain their magnetic properties even under strong external field,
- A magnet with a smooth gold surface is more attractive,
- Neodymium magnets achieve maximum magnetic induction on a small surface, which ensures high operational effectiveness,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to the possibility of flexible forming and customization to individualized projects, magnetic components can be created in a variety of geometric configurations, which expands the range of possible applications,
- Significant place in advanced technology sectors – they are utilized in HDD drives, electromotive mechanisms, precision medical tools, also industrial machines.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Limited possibility of producing nuts in the magnet and complex forms - preferred is cover - magnet mounting.
- Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these devices are able to complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price is higher than average,
Pull force analysis
Maximum lifting capacity of the magnet – what contributes to it?
- using a base made of low-carbon steel, acting as a magnetic yoke
- possessing a massiveness of minimum 10 mm to avoid saturation
- with a plane free of scratches
- with total lack of distance (without paint)
- under axial force direction (90-degree angle)
- at temperature approx. 20 degrees Celsius
Key elements affecting lifting force
- Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Plate material – mild steel attracts best. Alloy steels decrease magnetic permeability and holding force.
- Surface finish – ideal contact is obtained only on smooth steel. Rough texture reduce the real contact area, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of induction. Check the thermal limit for a given model.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of NdFeB magnets
Dust is flammable
Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.
Eye protection
Neodymium magnets are sintered ceramics, which means they are very brittle. Collision of two magnets will cause them breaking into shards.
Powerful field
Exercise caution. Neodymium magnets attract from a long distance and snap with huge force, often faster than you can react.
Heat sensitivity
Regular neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. This process is irreversible.
Electronic devices
Device Safety: Strong magnets can damage payment cards and delicate electronics (heart implants, medical aids, mechanical watches).
Phone sensors
An intense magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Keep magnets close to a smartphone to prevent damaging the sensors.
Crushing risk
Protect your hands. Two powerful magnets will snap together immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!
Metal Allergy
A percentage of the population suffer from a contact allergy to Ni, which is the common plating for neodymium magnets. Extended handling may cause skin redness. We strongly advise use safety gloves.
Keep away from children
NdFeB magnets are not suitable for play. Eating multiple magnets can lead to them pinching intestinal walls, which poses a direct threat to life and requires urgent medical intervention.
Life threat
Individuals with a pacemaker have to maintain an safe separation from magnets. The magnetic field can interfere with the operation of the life-saving device.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
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Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
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Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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