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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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Specifications along with structure of neodymium magnets can be tested with our
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Product card - 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 as well as weaknesses of neodymium magnets.
Pros
- They have constant strength, and over nearly ten years their attraction force decreases symbolically – ~1% (according to theory),
- They do not lose their magnetic properties even under external field action,
- Thanks to the smooth finish, the coating of nickel, gold-plated, or silver-plated gives an professional appearance,
- Neodymium magnets create maximum magnetic induction on a their surface, which allows for strong attraction,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- In view of the possibility of precise forming and customization to unique requirements, NdFeB magnets can be modeled in a wide range of forms and dimensions, which expands the range of possible applications,
- Huge importance in electronics industry – they are utilized in mass storage devices, motor assemblies, precision medical tools, as well as technologically advanced constructions.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Limitations
- To avoid cracks under impact, we recommend using special steel holders. Such a solution secures the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their power 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 suggest using waterproof magnets e.g. in rubber, plastic
- Limited possibility of creating threads in the magnet and complex shapes - preferred is cover - magnet mounting.
- Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, small components of these devices can complicate diagnosis medical when they are in the body.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Holding force characteristics
Highest magnetic holding force – what it depends on?
- on a base made of mild steel, effectively closing the magnetic field
- with a cross-section minimum 10 mm
- characterized by even structure
- under conditions of ideal adhesion (surface-to-surface)
- for force acting at a right angle (in the magnet axis)
- at standard ambient temperature
Key elements affecting lifting force
- Gap between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of nominal force).
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Steel grade – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
- Smoothness – ideal contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
- Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under shearing force the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the load capacity.
Warnings
Hand protection
Mind your fingers. Two powerful magnets will join instantly with a force of massive weight, destroying everything in their path. Be careful!
Pacemakers
Life threat: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Safe distance
Avoid bringing magnets close to a purse, laptop, or TV. The magnetism can destroy these devices and erase data from cards.
Material brittleness
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Allergy Warning
Some people suffer from a sensitization to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact can result in dermatitis. We suggest use protective gloves.
Fire warning
Mechanical processing of neodymium magnets carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Impact on smartphones
Be aware: rare earth magnets produce a field that disrupts precision electronics. Maintain a safe distance from your mobile, tablet, and navigation systems.
Handling rules
Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.
Do not give to children
NdFeB magnets are not intended for children. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which constitutes a critical condition and requires urgent medical intervention.
Maximum temperature
Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.
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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