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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 details - 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
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 |
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Strengths as well as weaknesses of Nd2Fe14B magnets.
Benefits
- Their magnetic field is maintained, and after approximately 10 years it decreases only by ~1% (according to research),
- They feature excellent resistance to magnetism drop when exposed to opposing magnetic fields,
- A magnet with a shiny silver surface has better aesthetics,
- Neodymium magnets generate maximum magnetic induction on a small area, which increases force concentration,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- In view of the option of accurate forming and customization to individualized projects, NdFeB magnets can be created in a wide range of geometric configurations, which amplifies use scope,
- Significant place in electronics industry – they serve a role in computer drives, electric motors, precision medical tools, as well as other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Cons
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. 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 - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of creating nuts in the magnet and complicated shapes - preferred is cover - magnet mounting.
- Possible danger related to microscopic parts of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that small elements of these products are able to complicate diagnosis medical in case of swallowing.
- With large orders the cost of neodymium magnets can be a barrier,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- on a base made of mild steel, effectively closing the magnetic flux
- possessing a thickness of minimum 10 mm to avoid saturation
- with a surface free of scratches
- without any air gap between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at standard ambient temperature
Lifting capacity in real conditions – factors
- Distance – the presence of any layer (rust, tape, air) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
- Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
- Plate material – low-carbon steel gives the best results. Higher carbon content decrease magnetic permeability and lifting capacity.
- Surface quality – the smoother and more polished the surface, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate reduces the load capacity.
Safety rules for work with neodymium magnets
Powerful field
Use magnets consciously. Their huge power can shock even professionals. Plan your moves and respect their force.
No play value
Neodymium magnets are not suitable for play. Swallowing multiple magnets may result in them attracting across intestines, which poses a severe health hazard and requires urgent medical intervention.
Data carriers
Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.
Metal Allergy
Studies show that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from touching magnets with bare hands or opt for versions in plastic housing.
Permanent damage
Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.
ICD Warning
Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.
Compass and GPS
A strong magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Keep magnets near a device to prevent damaging the sensors.
Beware of splinters
Neodymium magnets are ceramic materials, meaning they are fragile like glass. Collision of two magnets will cause them breaking into shards.
Mechanical processing
Combustion risk: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.
Crushing risk
Mind your fingers. Two large magnets will join immediately with a force of several hundred kilograms, crushing everything in their path. Be careful!
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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