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SM 25x100 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130366
GTIN/EAN: 5906301813149
Diameter Ø
25 mm [±1 mm]
Height
100 mm [±1 mm]
Weight
360 g
Magnetic Flux
~ 8 500 Gauss [±5%]
319.80 ZŁ with VAT / pcs + price for transport
260.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power and shape of neodymium magnets can be calculated on our
power calculator.
Orders placed before 14:00 will be shipped the same business day.
Detailed specification - SM 25x100 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x100 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130366 |
| GTIN/EAN | 5906301813149 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 100 mm [±1 mm] |
| Weight | 360 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 3 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 25x100 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 100 | mm (L) |
| Active length | 64 | mm |
| Section count | 2 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~373 | g |
| Active area | 50 | 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 (2 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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Strengths as well as weaknesses of Nd2Fe14B magnets.
Advantages
- They retain full power for nearly 10 years – the drop is just ~1% (according to analyses),
- They are noted for resistance to demagnetization induced by external disturbances,
- The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
- 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 ability of accurate shaping and adaptation to specialized needs, NdFeB magnets can be produced in a broad palette of shapes and sizes, which increases their versatility,
- Universal use in modern industrial fields – they are used in hard drives, drive modules, medical equipment, and technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which allows their use in miniature devices
Cons
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 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 creating threads and complicated forms in magnets, we recommend using a housing - magnetic mount.
- Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these devices are able to disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Detachment force of the magnet in optimal conditions – what contributes to it?
- on a block made of structural steel, effectively closing the magnetic field
- whose thickness equals approx. 10 mm
- characterized by even structure
- with direct contact (without paint)
- for force applied at a right angle (pull-off, not shear)
- in stable room temperature
Magnet lifting force in use – key factors
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of generating force.
- Plate material – mild steel attracts best. Higher carbon content reduce magnetic permeability and holding force.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
- Thermal factor – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity was measured with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet and the plate decreases the load capacity.
Safety rules for work with neodymium magnets
Magnetic interference
GPS units and smartphones are extremely sensitive to magnetism. Direct contact with a strong magnet can permanently damage the sensors in your phone.
Safe distance
Avoid bringing magnets near a purse, laptop, or screen. The magnetism can permanently damage these devices and erase data from cards.
Allergy Warning
Allergy Notice: The nickel-copper-nickel coating contains nickel. If redness happens, immediately stop working with magnets and wear gloves.
Machining danger
Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Keep away from children
Only for adults. Tiny parts pose a choking risk, leading to severe trauma. Keep out of reach of kids and pets.
Eye protection
Despite metallic appearance, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into hazardous fragments.
Do not overheat magnets
Avoid heat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Serious injuries
Watch your fingers. Two powerful magnets will snap together immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Handling guide
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
Health Danger
People with a ICD should keep an large gap from magnets. The magnetism can stop the functioning of the implant.
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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