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SM 25x100 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130366
GTIN/EAN: 5906301813149
Diameter Ø
25 mm [±1 mm]
Height
100 mm [±1 mm]
Weight
360 g
Magnetic Flux
~ 8 500 Gauss [±5%]
319.80 ZŁ with VAT / pcs + price for transport
260.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Force and structure of neodymium magnets can be reviewed using our
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Technical - SM 25x100 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x100 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130366 |
| GTIN/EAN | 5906301813149 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 100 mm [±1 mm] |
| Weight | 360 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 3 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | 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.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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 25x100 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 100 | mm (L) |
| Active length | 64 | mm |
| Section count | 2 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~373 | g |
| Active area | 50 | 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) | 18.1 | kg (theor.) |
| Induction (surface) | ~8 500 | Gauss (Max) |
Chart 2: Field profile (2 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also proposals
![UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/um-32x18x8-m6-gz-jix.jpg "UMGZ 32x18x8 [M6] GZ / N38 - magnetic holder external thread")
![SM 32x200 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x200-2xm8-fub.jpg "SM 32x200 [2xM8] / N42 - magnetic separator")
Pros and cons of Nd2Fe14B magnets.
Benefits
- Their strength remains stable, and after around 10 years it drops only by ~1% (theoretically),
- They retain their magnetic properties even under close interference source,
- In other words, due to the metallic finish of nickel, the element is aesthetically pleasing,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to flexibility in shaping and the ability to adapt to client solutions,
- Versatile presence in high-tech industry – they are utilized in HDD drives, brushless drives, diagnostic systems, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in small systems
Weaknesses
- At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material immune to moisture, in case of application outdoors
- Due to limitations in realizing nuts and complex forms in magnets, we recommend using cover - magnetic holder.
- Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these products can disrupt the diagnostic process medical when they are in the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Maximum lifting capacity of the magnet – what affects it?
- using a plate made of low-carbon steel, acting as a ideal flux conductor
- possessing a massiveness of at least 10 mm to avoid saturation
- characterized by smoothness
- without any clearance between the magnet and steel
- under vertical application of breakaway force (90-degree angle)
- in neutral thermal conditions
Determinants of lifting force in real conditions
- Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
- Angle of force application – highest force is available only during pulling at a 90° angle. The shear force of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Plate thickness – insufficiently thick steel does not close the flux, causing part of the power to be wasted into the air.
- Material composition – different alloys reacts the same. Alloy additives worsen the interaction with the magnet.
- Plate texture – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
- Temperature – temperature increase results in weakening of force. It is worth remembering the thermal limit for a given model.
Lifting capacity was assessed by applying a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Additionally, even a slight gap between the magnet and the plate decreases the load capacity.
Safety rules for work with neodymium magnets
GPS Danger
A strong magnetic field negatively affects the functioning of magnetometers in phones and GPS navigation. Do not bring magnets close to a device to avoid breaking the sensors.
Nickel allergy
Studies show that nickel (the usual finish) is a potent allergen. If you have an allergy, refrain from touching magnets with bare hands and select coated magnets.
Pinching danger
Mind your fingers. Two powerful magnets will join instantly with a force of massive weight, destroying anything in their path. Exercise extreme caution!
Product not for children
Neodymium magnets are not intended for children. Accidental ingestion of multiple magnets can lead to them attracting across intestines, which poses a direct threat to life and necessitates urgent medical intervention.
Safe operation
Before starting, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Eye protection
NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Impact of two magnets will cause them shattering into shards.
Protect data
Powerful magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.
ICD Warning
For implant holders: Powerful magnets disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.
Demagnetization risk
Keep cool. NdFeB magnets are sensitive to temperature. If you need operation above 80°C, inquire about special high-temperature series (H, SH, UH).
Combustion hazard
Dust produced during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
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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