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SM 25x350 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130355
GTIN/EAN: 5906301813033
Diameter Ø
25 mm [±1 mm]
Height
350 mm [±1 mm]
Weight
1360 g
Magnetic Flux
~ 8 500 Gauss [±5%]
1057.80 ZŁ with VAT / pcs + price for transport
860.00 ZŁ net + 23% VAT / pcs
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Technical parameters - SM 25x350 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x350 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130355 |
| GTIN/EAN | 5906301813033 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 350 mm [±1 mm] |
| Weight | 1360 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 13 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 25x350 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 350 | mm (L) |
| Active length | 314 | mm |
| Section count | 13 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1306 | g |
| Active area | 247 | 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 (13 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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Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- They retain magnetic properties for almost 10 years – the loss is just ~1% (in theory),
- Magnets effectively protect themselves against loss of magnetization caused by foreign field sources,
- The use of an metallic layer 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 shape) at temperatures up to 230°C and above...
- Due to the potential of free molding and adaptation to specialized requirements, neodymium magnets can be manufactured in a broad palette of forms and dimensions, which increases their versatility,
- Huge importance in modern industrial fields – they serve a role in data components, electromotive mechanisms, advanced medical instruments, as well as modern systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets decrease their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of creating nuts in the magnet and complex forms - preferred is casing - magnetic holder.
- Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Lifting parameters
Detachment force of the magnet in optimal conditions – what affects it?
- using a base made of high-permeability steel, serving as a ideal flux conductor
- whose thickness reaches at least 10 mm
- with a surface cleaned and smooth
- with direct contact (without impurities)
- during detachment in a direction vertical to the mounting surface
- at conditions approx. 20°C
Practical lifting capacity: influencing factors
- Air gap (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to varnish, rust or debris).
- Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Material type – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
- Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
- Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.
Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate decreases the lifting capacity.
Safe handling of NdFeB magnets
Flammability
Powder produced during grinding of magnets is flammable. Do not drill into magnets unless you are an expert.
Sensitization to coating
Certain individuals have a contact allergy to Ni, which is the typical protective layer for neodymium magnets. Extended handling may cause a rash. It is best to wear safety gloves.
Handling guide
Exercise caution. Rare earth magnets act from a long distance and snap with massive power, often faster than you can move away.
Protect data
Device Safety: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).
Bodily injuries
Protect your hands. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Product not for children
These products are not intended for children. Accidental ingestion of several magnets may result in them attracting across intestines, which poses a critical condition and necessitates urgent medical intervention.
Medical interference
Individuals with a ICD should keep an large gap from magnets. The magnetic field can interfere with the operation of the life-saving device.
Permanent damage
Keep cool. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Compass and GPS
Remember: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your mobile, device, and GPS.
Magnet fragility
NdFeB magnets are sintered ceramics, meaning they are very brittle. Clashing of two magnets will cause them cracking into shards.
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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