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SM 32x425 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130380
GTIN/EAN: 5906301813286
Diameter Ø
32 mm [±1 mm]
Height
425 mm [±1 mm]
Weight
2280 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1266.90 ZŁ with VAT / pcs + price for transport
1030.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical parameters - SM 32x425 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x425 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130380 |
| GTIN/EAN | 5906301813286 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 425 mm [±1 mm] |
| Weight | 2280 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 16 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 32x425 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 425 | mm (L) |
| Active length | 389 | mm |
| Section count | 16 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2598 | g |
| Active area | 391 | 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 (16 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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Strengths and weaknesses of Nd2Fe14B magnets.
Benefits
- They do not lose strength, even after around ten years – the decrease in strength is only ~1% (theoretically),
- Neodymium magnets remain remarkably resistant to loss of magnetic properties caused by external interference,
- A magnet with a smooth silver surface looks better,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- 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...
- Considering the possibility of accurate shaping and adaptation to unique projects, magnetic components can be modeled in a variety of forms and dimensions, which increases their versatility,
- Huge importance in electronics industry – they are commonly used in computer drives, brushless drives, medical devices, as well as industrial machines.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Limitations
- To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing threads and complicated forms in magnets, we recommend using casing - magnetic holder.
- Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Additionally, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
- Due to expensive raw materials, their price is relatively high,
Holding force characteristics
Highest magnetic holding force – what contributes to it?
- with the application of a yoke made of low-carbon steel, ensuring maximum field concentration
- possessing a thickness of at least 10 mm to avoid saturation
- with a plane free of scratches
- with total lack of distance (no paint)
- under vertical application of breakaway force (90-degree angle)
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
- Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
- Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures lower magnetic properties and holding force.
- Surface condition – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
- Thermal environment – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, however under shearing force the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate lowers the load capacity.
Precautions when working with NdFeB magnets
Do not drill into magnets
Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this risks ignition.
Sensitization to coating
Some people have a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching may cause an allergic reaction. It is best to wear protective gloves.
Demagnetization risk
Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. Damage is permanent.
No play value
These products are not suitable for play. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and necessitates immediate surgery.
Bone fractures
Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying anything in their path. Exercise extreme caution!
Material brittleness
Neodymium magnets are ceramic materials, meaning they are very brittle. Impact of two magnets will cause them breaking into shards.
Caution required
Be careful. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can react.
Warning for heart patients
Warning for patients: Powerful magnets affect electronics. Keep at least 30 cm distance or request help to handle the magnets.
Phone sensors
An intense magnetic field interferes with the functioning of magnetometers in phones and navigation systems. Maintain magnets close to a smartphone to avoid damaging the sensors.
Magnetic media
Avoid bringing magnets close to a purse, computer, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.
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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