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SM 25x375 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130363
GTIN/EAN: 5906301813118
Diameter Ø
25 mm [±1 mm]
Height
375 mm [±1 mm]
Weight
1460 g
Magnetic Flux
~ 8 500 Gauss [±5%]
1131.60 ZŁ with VAT / pcs + price for transport
920.00 ZŁ net + 23% VAT / pcs
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Technical specification - SM 25x375 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x375 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130363 |
| GTIN/EAN | 5906301813118 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 375 mm [±1 mm] |
| Weight | 1460 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 14 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 25x375 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 375 | mm (L) |
| Active length | 339 | mm |
| Section count | 14 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1399 | g |
| Active area | 266 | 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 (14 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% |
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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Advantages as well as disadvantages of neodymium magnets.
Benefits
- They have stable power, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
- Neodymium magnets are characterized by extremely resistant to demagnetization caused by external field sources,
- In other words, due to the shiny finish of gold, the element becomes visually attractive,
- Neodymium magnets achieve maximum magnetic induction on a small surface, which increases force concentration,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
- Possibility of precise modeling and optimizing to individual conditions,
- Fundamental importance in future technologies – they are commonly used in hard drives, motor assemblies, precision medical tools, as well as industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in compact constructions
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
- 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.
- They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- Due to limitations in realizing threads and complex forms in magnets, we recommend using casing - magnetic mechanism.
- Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which becomes key in the context of child safety. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- using a plate made of high-permeability steel, acting as a ideal flux conductor
- possessing a thickness of min. 10 mm to avoid saturation
- characterized by lack of roughness
- without any clearance between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at standard ambient temperature
Practical aspects of lifting capacity – factors
- Space between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
- Metal type – not every steel reacts the same. High carbon content weaken the interaction with the magnet.
- Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Thermal environment – temperature increase results in weakening of induction. Check the thermal limit for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the load capacity.
Safe handling of NdFeB magnets
Hand protection
Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.
Respect the power
Exercise caution. Neodymium magnets act from a distance and snap with massive power, often faster than you can react.
Machining danger
Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.
Medical interference
People with a pacemaker have to keep an absolute distance from magnets. The magnetism can stop the functioning of the life-saving device.
Risk of cracking
Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets will cause them cracking into small pieces.
Swallowing risk
Only for adults. Small elements pose a choking risk, causing severe trauma. Keep away from kids and pets.
Phone sensors
An intense magnetic field negatively affects the functioning of magnetometers in smartphones and navigation systems. Do not bring magnets near a device to avoid breaking the sensors.
Skin irritation risks
Studies show that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands or choose encased magnets.
Demagnetization risk
Keep cool. Neodymium magnets are susceptible to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).
Electronic hazard
Equipment safety: Strong magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).
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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