SM 18x200 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130273
GTIN/EAN: 5906301812753
Diameter Ø
18 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
442.80 ZŁ with VAT / pcs + price for transport
360.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - SM 18x200 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x200 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130273 |
| GTIN/EAN | 5906301812753 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 200 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 5 400 Gauss [±5%] |
| Size/Mount Quantity | 2xM5 |
| 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 |
Elemental analysis
| 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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Pros as well as cons of neodymium magnets.
Strengths
- They retain magnetic properties for around 10 years – the loss is just ~1% (in theory),
- They have excellent resistance to magnetism drop as a result of opposing magnetic fields,
- Thanks to the smooth finish, the coating of nickel, gold, or silver gives an clean appearance,
- The surface of neodymium magnets generates a strong magnetic field – this is a key feature,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
- Thanks to modularity in forming and the ability to modify to specific needs,
- Huge importance in modern industrial fields – they are utilized in computer drives, brushless drives, medical devices, also complex engineering applications.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength 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 during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Limited possibility of creating nuts in the magnet and complex shapes - recommended is a housing - magnet mounting.
- Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small components of these devices can be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Lifting parameters
Optimal lifting capacity of a neodymium magnet – what affects it?
- using a sheet made of low-carbon steel, serving as a ideal flux conductor
- whose transverse dimension reaches at least 10 mm
- with a plane free of scratches
- with zero gap (without coatings)
- during pulling in a direction perpendicular to the mounting surface
- in stable room temperature
What influences lifting capacity in practice
- Space between surfaces – every millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Metal type – not every steel attracts identically. Alloy additives weaken the interaction with the magnet.
- Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Thermal factor – high temperature reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was assessed by applying a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the load capacity.
H&S for magnets
Nickel coating and allergies
Certain individuals have a sensitization to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact can result in an allergic reaction. We strongly advise use safety gloves.
Maximum temperature
Standard neodymium magnets (N-type) lose power when the temperature goes above 80°C. This process is irreversible.
Life threat
People with a ICD must maintain an absolute distance from magnets. The magnetism can disrupt the operation of the implant.
Do not drill into magnets
Dust generated during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Magnetic interference
GPS units and smartphones are extremely sensitive to magnetism. Close proximity with a strong magnet can ruin the internal compass in your phone.
Crushing risk
Large magnets can crush fingers in a fraction of a second. Under no circumstances put your hand betwixt two attracting surfaces.
Beware of splinters
Despite the nickel coating, the material is delicate and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.
Immense force
Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.
Product not for children
Absolutely store magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are life-threatening.
Data carriers
Avoid bringing magnets near a purse, laptop, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.
