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SM 25x225 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130292
GTIN/EAN: 5906301812852
Diameter Ø
25 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 6 500 Gauss [±5%]
615.00 ZŁ with VAT / pcs + price for transport
500.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Data sheet - SM 25x225 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 25x225 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130292 |
| GTIN/EAN | 5906301812852 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 6 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 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 |
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
![SM 25x325 [2xM8] / N52 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-25x325-2xm8-bit.jpg "SM 25x325 [2xM8] / N52 - magnetic separator")
Strengths as well as weaknesses of rare earth magnets.
Benefits
- They do not lose power, even over approximately ten years – the decrease in lifting capacity is only ~1% (based on measurements),
- Magnets very well protect themselves against loss of magnetization caused by ambient magnetic noise,
- By applying a lustrous coating of gold, the element has an professional look,
- Magnets exhibit very high magnetic induction on the working surface,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Considering the ability of free molding and adaptation to custom projects, neodymium magnets can be manufactured in a broad palette of geometric configurations, which makes them more universal,
- Key role in modern industrial fields – they are utilized in mass storage devices, electric drive systems, advanced medical instruments, and other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which enables their usage in small systems
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We recommend casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated shapes.
- Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets is economically unviable,
Lifting parameters
Maximum lifting force for a neodymium magnet – what contributes to it?
- on a plate made of structural steel, optimally conducting the magnetic flux
- with a thickness of at least 10 mm
- with an polished contact surface
- with total lack of distance (no coatings)
- under perpendicular application of breakaway force (90-degree angle)
- in stable room temperature
Determinants of practical lifting force of a magnet
- Distance (between the magnet and the plate), because even a very small distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
- Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
- Steel thickness – too thin sheet does not close the flux, causing part of the power to be lost into the air.
- Steel type – mild steel attracts best. Alloy steels reduce magnetic properties and lifting capacity.
- Surface quality – the more even the plate, the better the adhesion and higher the lifting capacity. Roughness acts like micro-gaps.
- Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.
Holding force was checked on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Warnings
Fire risk
Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.
Threat to electronics
Avoid bringing magnets near a wallet, laptop, or screen. The magnetism can permanently damage these devices and erase data from cards.
Magnets are brittle
Neodymium magnets are ceramic materials, meaning they are very brittle. Clashing of two magnets leads to them breaking into small pieces.
Do not give to children
Absolutely keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets clamping inside the body are fatal.
Crushing risk
Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Danger to pacemakers
Patients with a ICD must maintain an large gap from magnets. The magnetic field can disrupt the functioning of the life-saving device.
Nickel allergy
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If an allergic reaction appears, cease handling magnets and wear gloves.
Heat warning
Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.
Powerful field
Use magnets consciously. Their huge power can shock even professionals. Plan your moves and do not underestimate their force.
Magnetic interference
Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.
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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