SM 19x225 [2xM6] / N50 - magnetic separator
magnetic separator
Catalog no 130241
GTIN/EAN: 5906301812708
Diameter Ø
19 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 12 000 Gauss [±5%]
492.00 ZŁ with VAT / pcs + price for transport
400.00 ZŁ net + 23% VAT / pcs
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Technical details - SM 19x225 [2xM6] / N50 - magnetic separator
Specification / characteristics - SM 19x225 [2xM6] / N50 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130241 |
| GTIN/EAN | 5906301812708 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 19 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 12 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM6 |
| Polarity | circumferential - 12 poles |
| Casing Tube Thickness | 0.5 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N50
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14-14.6 | kGs |
| remenance Br [min. - max.] ? | 1400-1460 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 47-51 | BH max MGOe |
| energy density [min. - max.] ? | 374-406 | 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 19x225 [2xM6] / N50
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 19 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~485 | g |
| Active area | 113 | 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) | 20.8 | kg (theor.) |
| Induction (surface) | ~12 000 | Gauss (Max) |
Chart 2: Field profile (8 sections)
Chart 3: Temperature performance
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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of neodymium magnets.
Advantages
- They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
- They are noted for resistance to demagnetization induced by external magnetic fields,
- In other words, due to the glossy finish of gold, the element looks attractive,
- Magnets are distinguished by exceptionally strong magnetic induction on the active area,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Due to the possibility of flexible forming and customization to individualized projects, magnetic components can be modeled in a wide range of forms and dimensions, which makes them more universal,
- Fundamental importance in innovative solutions – they serve a role in data components, electric motors, medical equipment, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in small systems
Cons
- To avoid cracks under impact, we suggest using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation as well as corrosion.
- Due to limitations in realizing nuts and complex forms in magnets, we recommend using casing - magnetic mount.
- Health risk related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child safety. Additionally, small components of these magnets are able to be problematic in diagnostics medical after entering the body.
- Due to complex production process, their price is higher than average,
Lifting parameters
Detachment force of the magnet in optimal conditions – what contributes to it?
- using a base made of mild steel, functioning as a ideal flux conductor
- with a cross-section of at least 10 mm
- with a surface free of scratches
- with zero gap (no impurities)
- during detachment in a direction vertical to the plane
- at conditions approx. 20°C
Magnet lifting force in use – key factors
- Air gap (between the magnet and the plate), since even a very small clearance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, corrosion or debris).
- Direction of force – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the plate is typically many times smaller (approx. 1/5 of the lifting capacity).
- Base massiveness – too thin steel does not accept the full field, causing part of the power to be lost to the other side.
- Material type – the best choice is pure iron steel. Cast iron may attract less.
- Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
- Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under shearing force the holding force is lower. Additionally, even a slight gap between the magnet and the plate lowers the load capacity.
Warnings
GPS and phone interference
Note: rare earth magnets generate a field that confuses precision electronics. Keep a separation from your phone, device, and GPS.
Dust is flammable
Dust generated during machining of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Warning for allergy sufferers
A percentage of the population have a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Extended handling can result in a rash. We suggest wear protective gloves.
Handling guide
Handle with care. Rare earth magnets act from a long distance and snap with huge force, often faster than you can react.
Safe distance
Very strong magnetic fields can destroy records on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Do not give to children
Always store magnets out of reach of children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are very dangerous.
Maximum temperature
Keep cool. Neodymium magnets are sensitive to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Risk of cracking
Beware of splinters. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. We recommend safety glasses.
Physical harm
Mind your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing everything in their path. Be careful!
ICD Warning
Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Stay away if you have medical devices.
