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SM 32x275 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130458
GTIN/EAN: 5906301813293
Diameter Ø
32 mm [±1 mm]
Height
275 mm [±1 mm]
Weight
1520 g
Magnetic Flux
~ 10 000 Gauss [±5%]
897.90 ZŁ with VAT / pcs + price for transport
730.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters and form of neodymium magnets can be estimated using our
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Physical properties - SM 32x275 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x275 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130458 |
| GTIN/EAN | 5906301813293 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 275 mm [±1 mm] |
| Weight | 1520 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| 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 32x275 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 275 | mm (L) |
| Active length | 239 | mm |
| Section count | 10 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1681 | g |
| Active area | 240 | 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) | 41 | kg (theor.) |
| Induction (surface) | ~10 000 | Gauss (Max) |
Chart 2: Field profile (10 sections)
Chart 3: Temperature performance
Chemical composition
| 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 and disadvantages of neodymium magnets.
Strengths
- They do not lose power, even during around ten years – the decrease in power is only ~1% (theoretically),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- In other words, due to the metallic surface of gold, the element is aesthetically pleasing,
- Magnets exhibit excellent magnetic induction on the outer side,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures reaching 230°C and above...
- Thanks to modularity in shaping and the capacity to modify to unusual requirements,
- Key role in electronics industry – they find application in data components, drive modules, medical devices, also industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in compact constructions
Cons
- At very strong impacts they can break, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- We recommend cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complicated shapes.
- Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the context of child safety. Furthermore, small components of these magnets are able to complicate diagnosis medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum lifting force for a neodymium magnet – what contributes to it?
- with the contact of a yoke made of special test steel, guaranteeing full magnetic saturation
- whose transverse dimension reaches at least 10 mm
- characterized by even structure
- under conditions of gap-free contact (surface-to-surface)
- during pulling in a direction vertical to the plane
- in stable room temperature
Determinants of lifting force in real conditions
- Distance (betwixt the magnet and the plate), since even a microscopic clearance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
- Angle of force application – highest force is available only during perpendicular pulling. The shear force of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and lifting capacity.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
- Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity was assessed with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.
Safety rules for work with NdFeB magnets
Material brittleness
Watch out for shards. Magnets can explode upon uncontrolled impact, launching shards into the air. Wear goggles.
Demagnetization risk
Standard neodymium magnets (grade N) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Allergic reactions
It is widely known that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, refrain from direct skin contact and opt for coated magnets.
Do not drill into magnets
Combustion risk: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.
Electronic devices
Avoid bringing magnets near a wallet, laptop, or TV. The magnetic field can irreversibly ruin these devices and erase data from cards.
Powerful field
Handle with care. Neodymium magnets act from a distance and snap with massive power, often faster than you can react.
Medical implants
People with a heart stimulator have to maintain an safe separation from magnets. The magnetism can interfere with the operation of the implant.
Hand protection
Large magnets can smash fingers instantly. Never put your hand between two attracting surfaces.
GPS and phone interference
Note: rare earth magnets generate a field that disrupts sensitive sensors. Keep a separation from your mobile, device, and GPS.
Keep away from children
Adult use only. Tiny parts can be swallowed, leading to severe trauma. Keep out of reach of children and animals.
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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