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SM 32x175 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130353
GTIN/EAN: 5906301813019
Diameter Ø
32 mm [±1 mm]
Height
175 mm [±1 mm]
Weight
940 g
Magnetic Flux
~ 8 000 Gauss [±5%]
528.90 ZŁ with VAT / pcs + price for transport
430.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Parameters and appearance of a neodymium magnet can be reviewed using our
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Physical properties - SM 32x175 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x175 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130353 |
| GTIN/EAN | 5906301813019 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 175 mm [±1 mm] |
| Weight | 940 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 6 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 32x175 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 175 | mm (L) |
| Active length | 139 | mm |
| Section count | 6 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1070 | g |
| Active area | 140 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (6 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths and weaknesses of rare earth magnets.
Strengths
- They have stable power, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
- Magnets very well defend themselves against demagnetization caused by external fields,
- In other words, due to the metallic finish of silver, the element becomes visually attractive,
- Magnetic induction on the surface of the magnet turns out to be maximum,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures approaching 230°C and above...
- Possibility of detailed modeling and adapting to concrete requirements,
- Huge importance in high-tech industry – they find application in computer drives, motor assemblies, medical devices, and technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
- Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
- Due to complex production process, their price exceeds standard values,
Pull force analysis
Magnetic strength at its maximum – what it depends on?
- with the contact of a yoke made of low-carbon steel, ensuring full magnetic saturation
- possessing a thickness of min. 10 mm to ensure full flux closure
- characterized by even structure
- under conditions of gap-free contact (surface-to-surface)
- under axial force direction (90-degree angle)
- at ambient temperature approx. 20 degrees Celsius
Lifting capacity in real conditions – factors
- Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is usually many times smaller (approx. 1/5 of the lifting capacity).
- Plate thickness – too thin sheet does not close the flux, causing part of the flux to be lost to the other side.
- Metal type – different alloys attracts identically. Alloy additives weaken the attraction effect.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
- Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.
Safe handling of neodymium magnets
Machining danger
Mechanical processing of neodymium magnets carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
GPS and phone interference
A powerful magnetic field disrupts the operation of compasses in phones and navigation systems. Maintain magnets near a smartphone to prevent damaging the sensors.
Do not underestimate power
Exercise caution. Neodymium magnets attract from a long distance and snap with huge force, often faster than you can move away.
Eye protection
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Allergic reactions
Nickel alert: The nickel-copper-nickel coating consists of nickel. If redness occurs, immediately stop handling magnets and wear gloves.
Medical interference
Warning for patients: Powerful magnets affect medical devices. Keep minimum 30 cm distance or request help to handle the magnets.
Crushing risk
Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, crushing anything in their path. Be careful!
Do not give to children
Product intended for adults. Small elements can be swallowed, causing severe trauma. Store out of reach of children and animals.
Data carriers
Very strong magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Maintain a gap of at least 10 cm.
Thermal limits
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will ruin its properties and strength.
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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