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
bulk discounts:
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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
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 |
Other proposals
Pros and cons of neodymium magnets.
Benefits
- Their power remains stable, and after around 10 years it decreases only by ~1% (theoretically),
- They are resistant to demagnetization induced by external disturbances,
- The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
- Possibility of custom creating and modifying to concrete conditions,
- Versatile presence in advanced technology sectors – they are utilized in magnetic memories, brushless drives, medical equipment, also multitasking production systems.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 very resistant to heat
- 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 secure oxidation and corrosion.
- Limited possibility of creating threads in the magnet and complex shapes - preferred is a housing - mounting mechanism.
- Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
- With budget limitations the cost of neodymium magnets is economically unviable,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what it depends on?
- using a plate made of mild steel, acting as a circuit closing element
- with a cross-section no less than 10 mm
- with a plane free of scratches
- with zero gap (without paint)
- under axial application of breakaway force (90-degree angle)
- at room temperature
Practical aspects of lifting capacity – factors
- Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
- Smoothness – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
- Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.
Warnings
Product not for children
Strictly store magnets away from children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are life-threatening.
Thermal limits
Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. Damage is permanent.
Caution required
Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.
Bone fractures
Protect your hands. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Be careful!
Risk of cracking
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them shattering into shards.
Medical interference
Individuals with a heart stimulator should keep an large gap from magnets. The magnetism can stop the operation of the implant.
Phone sensors
GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can permanently damage the sensors in your phone.
Machining danger
Combustion risk: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.
Nickel coating and allergies
Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and wear gloves.
Threat to electronics
Data protection: Strong magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, timepieces).
