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SM 32x250 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130299
GTIN/EAN: 5906301812920
Diameter Ø
32 mm [±1 mm]
Height
250 mm [±1 mm]
Weight
1240 g
Magnetic Flux
~ 8 000 Gauss [±5%]
873.30 ZŁ with VAT / pcs + price for transport
710.00 ZŁ net + 23% VAT / pcs
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Technical specification - SM 32x250 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x250 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130299 |
| GTIN/EAN | 5906301812920 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 250 mm [±1 mm] |
| Weight | 1240 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 9 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 32x250 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 250 | mm (L) |
| Active length | 214 | mm |
| Section count | 9 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1528 | g |
| Active area | 215 | 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 (9 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.
Pros
- Their magnetic field is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
- They retain their magnetic properties even under strong external field,
- By covering with a shiny layer of silver, the element gains an nice look,
- Magnets are characterized by extremely high magnetic induction on the outer layer,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of custom forming and adjusting to concrete requirements,
- Universal use in electronics industry – they find application in data components, electric motors, medical equipment, and other advanced devices.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Weaknesses
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power 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 when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in producing threads and complicated shapes in magnets, we propose using a housing - magnetic mount.
- Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which gains importance in the context of child health protection. Furthermore, small elements of these devices are able to complicate diagnosis medical when they are in the body.
- With mass production the cost of neodymium magnets is a challenge,
Lifting parameters
Maximum magnetic pulling force – what it depends on?
- with the contact of a sheet made of low-carbon steel, guaranteeing full magnetic saturation
- possessing a massiveness of min. 10 mm to avoid saturation
- with a plane free of scratches
- under conditions of ideal adhesion (metal-to-metal)
- under axial application of breakaway force (90-degree angle)
- at room temperature
Practical lifting capacity: influencing factors
- Gap (between the magnet and the plate), since even a very small distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Load vector – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Metal type – different alloys attracts identically. High carbon content worsen the attraction effect.
- Surface finish – ideal contact is possible only on polished steel. Rough texture create air cushions, weakening the magnet.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet and the plate lowers the lifting capacity.
Safe handling of NdFeB magnets
Fire warning
Powder generated during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.
Eye protection
Protect your eyes. Magnets can explode upon uncontrolled impact, launching shards into the air. We recommend safety glasses.
Keep away from computers
Avoid bringing magnets near a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.
Magnetic interference
Be aware: rare earth magnets generate a field that confuses precision electronics. Keep a safe distance from your mobile, device, and navigation systems.
Conscious usage
Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Think ahead.
Pinching danger
Danger of trauma: The attraction force is so immense that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.
Warning for allergy sufferers
It is widely known that the nickel plating (the usual finish) is a common allergen. If you have an allergy, prevent touching magnets with bare hands and choose coated magnets.
Demagnetization risk
Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.
Medical interference
Patients with a heart stimulator must keep an safe separation from magnets. The magnetic field can disrupt the operation of the life-saving device.
Keep away from children
NdFeB magnets are not toys. Swallowing a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and requires immediate surgery.
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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