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SM 32x150 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130297
GTIN/EAN: 5906301812906
Diameter Ø
32 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
804 g
Magnetic Flux
~ 8 000 Gauss [±5%]
455.10 ZŁ with VAT / pcs + price for transport
370.00 ZŁ net + 23% VAT / pcs
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Data sheet - SM 32x150 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x150 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130297 |
| GTIN/EAN | 5906301812906 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 804 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 5 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 |
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Pros
- They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
- Magnets very well resist against demagnetization caused by foreign field sources,
- A magnet with a smooth silver surface is more attractive,
- Magnetic induction on the surface of the magnet remains maximum,
- 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...
- Thanks to modularity in constructing and the capacity to adapt to unusual requirements,
- Significant place in innovative solutions – they find application in HDD drives, electric motors, medical devices, and complex engineering applications.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Cons
- At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets decrease 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
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- Limited ability of creating nuts in the magnet and complex shapes - recommended is a housing - magnetic holder.
- Possible danger related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child safety. Furthermore, tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
- With budget limitations the cost of neodymium magnets can be a barrier,
Pull force analysis
Highest magnetic holding force – what it depends on?
- with the use of a yoke made of low-carbon steel, ensuring full magnetic saturation
- possessing a massiveness of minimum 10 mm to ensure full flux closure
- with a plane cleaned and smooth
- under conditions of no distance (metal-to-metal)
- during pulling in a direction perpendicular to the plane
- at room temperature
Determinants of practical lifting force of a magnet
- Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Load vector – highest force is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – too thin plate does not close the flux, causing part of the power to be lost into the air.
- Steel grade – ideal substrate is pure iron steel. Hardened steels may attract less.
- Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.
Lifting capacity was determined using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.
Safety rules for work with neodymium magnets
Danger to the youngest
NdFeB magnets are not suitable for play. Eating multiple magnets may result in them attracting across intestines, which poses a critical condition and requires urgent medical intervention.
Dust explosion hazard
Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.
Allergy Warning
A percentage of the population experience a contact allergy to nickel, which is the common plating for NdFeB magnets. Extended handling may cause a rash. It is best to wear safety gloves.
Compass and GPS
Be aware: rare earth magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your mobile, tablet, and navigation systems.
Physical harm
Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!
Data carriers
Powerful magnetic fields can erase data on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Maximum temperature
Avoid heat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Safe operation
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Eye protection
Protect your eyes. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.
Warning for heart patients
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
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14.99 ZŁ
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Płatność przy odbiorze (pobranie):
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23.00 ZŁ
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