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 data of the product - 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
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Strengths as well as weaknesses of neodymium magnets.
Strengths
- They do not lose power, even over around 10 years – the reduction in power is only ~1% (theoretically),
- They are resistant to demagnetization induced by external field influence,
- Thanks to the shimmering finish, the coating of Ni-Cu-Ni, gold, or silver-plated gives an visually attractive appearance,
- Magnets possess maximum magnetic induction on the active area,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to freedom in shaping and the capacity to modify to individual projects,
- Universal use in advanced technology sectors – they are commonly used in data components, electric motors, medical equipment, also other advanced devices.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Weaknesses
- Brittleness is one of their disadvantages. Upon strong impact they can break. We recommend keeping them in a special holder, which not only secures them against impacts but also raises their 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 those in rubber or plastics, which prevent oxidation as well as corrosion.
- Limited ability of making threads in the magnet and complicated shapes - preferred is casing - mounting mechanism.
- Possible danger to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small components of these magnets are able to complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price is relatively high,
Lifting parameters
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- with the use of a sheet made of low-carbon steel, ensuring full magnetic saturation
- possessing a thickness of at least 10 mm to ensure full flux closure
- characterized by smoothness
- without the slightest insulating layer between the magnet and steel
- under axial application of breakaway force (90-degree angle)
- in temp. approx. 20°C
Determinants of practical lifting force of a magnet
- Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
- Angle of force application – highest force is available only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels decrease magnetic properties and holding force.
- Surface condition – ground elements ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
- Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.
Safe handling of neodymium magnets
Physical harm
Risk of injury: The attraction force is so great that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.
Shattering risk
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.
Handling rules
Exercise caution. Neodymium magnets attract from a distance and snap with massive power, often quicker than you can move away.
Adults only
Adult use only. Small elements can be swallowed, causing severe trauma. Store away from children and animals.
Danger to pacemakers
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Dust is flammable
Drilling and cutting of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Allergy Warning
Studies show that nickel (the usual finish) is a common allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or select versions in plastic housing.
Heat warning
Watch the temperature. Heating the magnet to high heat will ruin its properties and pulling force.
Electronic devices
Data protection: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).
GPS and phone interference
Be aware: neodymium magnets generate a field that interferes with sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.
