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SM 25x275 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130372
GTIN/EAN: 5906301813200
Diameter Ø
25 mm [±1 mm]
Height
275 mm [±1 mm]
Weight
1060 g
Magnetic Flux
~ 8 500 Gauss [±5%]
836.40 ZŁ with VAT / pcs + price for transport
680.00 ZŁ net + 23% VAT / pcs
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Detailed specification - SM 25x275 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x275 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130372 |
| GTIN/EAN | 5906301813200 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 275 mm [±1 mm] |
| Weight | 1060 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 10 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 25x275 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 275 | mm (L) |
| Active length | 239 | mm |
| Section count | 10 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1026 | g |
| Active area | 188 | 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 (10 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% |
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 as well as cons of Nd2Fe14B magnets.
Strengths
- They virtually do not lose power, because even after 10 years the performance loss is only ~1% (according to literature),
- They are extremely resistant to demagnetization induced by presence of other magnetic fields,
- The use of an aesthetic finish of noble metals (nickel, gold, silver) causes the element to look better,
- Magnets are distinguished by huge magnetic induction on the active area,
- 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...
- In view of the option of precise forming and adaptation to individualized requirements, magnetic components can be produced in a broad palette of geometric configurations, which increases their versatility,
- Huge importance in advanced technology sectors – they are commonly used in computer drives, electric motors, medical equipment, and modern systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Cons
- To avoid cracks under impact, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
- We suggest a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complex forms.
- Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, small components of these products are able to complicate diagnosis medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Maximum magnetic pulling force – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic flux
- possessing a massiveness of minimum 10 mm to ensure full flux closure
- with a surface free of scratches
- without the slightest insulating layer between the magnet and steel
- during pulling in a direction vertical to the plane
- at conditions approx. 20°C
Determinants of lifting force in real conditions
- Distance – the presence of foreign body (rust, dirt, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Plate thickness – insufficiently thick steel causes magnetic saturation, causing part of the flux to be lost to the other side.
- Material type – the best choice is high-permeability steel. Cast iron may have worse magnetic properties.
- Plate texture – ground elements ensure maximum contact, which improves force. Uneven metal weaken the grip.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the lifting capacity.
Safety rules for work with NdFeB magnets
Magnetic media
Do not bring magnets near a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.
Eye protection
Beware of splinters. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.
ICD Warning
For implant holders: Strong magnetic fields affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.
Warning for allergy sufferers
A percentage of the population suffer from a contact allergy to nickel, which is the standard coating for NdFeB magnets. Frequent touching might lead to skin redness. It is best to wear safety gloves.
Heat warning
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
Threat to navigation
An intense magnetic field negatively affects the operation of compasses in phones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.
Swallowing risk
Strictly keep magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are fatal.
Pinching danger
Mind your fingers. Two large magnets will snap together instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Flammability
Powder produced during grinding of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Do not underestimate power
Handle magnets consciously. Their powerful strength can shock even professionals. Be vigilant and do not underestimate their power.
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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