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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%]
492.00 zł with VAT / pcs + price for transport
400.00 zł net + 23% VAT / pcs
bulk discounts:
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Strength and shape of a neodymium magnet can be checked using our
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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
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 |
Other offers
Pros and cons of Nd2Fe14B magnets.
Advantages
- They retain attractive force for almost 10 years – the loss is just ~1% (according to analyses),
- They are extremely resistant to demagnetization induced by external field influence,
- By applying a lustrous coating of nickel, the element gains an modern look,
- Neodymium magnets create maximum magnetic induction on a small area, which increases force concentration,
- 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 freedom in shaping and the ability to modify to complex applications,
- Significant place in innovative solutions – they serve a role in mass storage devices, motor assemblies, medical devices, also other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions
Weaknesses
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- We suggest a housing - magnetic mount, due to difficulties in realizing threads inside the magnet and complex forms.
- Possible danger to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum holding power of the magnet – what contributes to it?
- with the use of a yoke made of special test steel, ensuring maximum field concentration
- whose thickness equals approx. 10 mm
- characterized by even structure
- without the slightest air gap between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- at ambient temperature room level
Lifting capacity in practice – influencing factors
- Space between magnet and steel – 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 attempting to slide, the magnet holds much less (typically approx. 20-30% of nominal force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
- Surface structure – the more even the surface, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
- Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.
H&S for magnets
Do not drill into magnets
Combustion risk: Rare earth powder is highly flammable. Do not process magnets in home conditions as this may cause fire.
Pacemakers
For implant holders: Strong magnetic fields affect medical devices. Maintain minimum 30 cm distance or ask another person to work with the magnets.
Allergic reactions
Certain individuals have a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Frequent touching may cause skin redness. It is best to wear safety gloves.
Magnet fragility
Neodymium magnets are ceramic materials, which means they are fragile like glass. Clashing of two magnets leads to them shattering into shards.
Maximum temperature
Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Choking Hazard
These products are not intended for children. Accidental ingestion of several magnets can lead to them connecting inside the digestive tract, which constitutes a critical condition and requires urgent medical intervention.
Bone fractures
Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!
Electronic hazard
Avoid bringing magnets near a wallet, computer, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.
GPS Danger
An intense magnetic field disrupts the functioning of magnetometers in smartphones and navigation systems. Keep magnets near a device to prevent damaging the sensors.
Do not underestimate power
Exercise caution. Rare earth magnets attract from a distance and snap with massive power, often faster than you can react.
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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