SMZR 25x150 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140234
GTIN/EAN: 5906301813422
Diameter Ø
25 mm [±1 mm]
Height
150 mm [±1 mm]
Weight
640 g
Magnetic Flux
~ 8 500 Gauss [±5%]
430.50 ZŁ with VAT / pcs + price for transport
350.00 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Give us a call
+48 22 499 98 98
if you prefer let us know via
request form
our website.
Specifications as well as form of a magnet can be analyzed using our
our magnetic calculator.
Same-day processing for orders placed before 14:00.
Detailed specification - SMZR 25x150 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x150 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140234 |
| GTIN/EAN | 5906301813422 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 640 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 5 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
SMZR 25x150 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 150 | mm (L) |
| Active length | 130 | mm |
| Section count | 5 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~560 | g |
| Active area | 102 | 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 (5 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 |
View also deals
![SM 32x500 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x500-2xm8-jan.jpg "SM 32x500 [2xM8] / N42 - magnetic separator")
Advantages and disadvantages of rare earth magnets.
Benefits
- They do not lose power, even after approximately ten years – the drop in lifting capacity is only ~1% (according to tests),
- They maintain their magnetic properties even under strong external field,
- By applying a smooth layer of gold, the element acquires an modern look,
- They feature high magnetic induction at the operating surface, which improves attraction properties,
- 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 versatility in shaping and the ability to modify to client solutions,
- Key role in modern technologies – they serve a role in data components, drive modules, precision medical tools, as well as multitasking production systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Limitations
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only protects them against impacts but also raises their durability
- NdFeB 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Limited ability of creating threads in the magnet and complex shapes - preferred is cover - magnet mounting.
- Potential hazard to health – tiny shards of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small elements of these magnets can be problematic in diagnostics medical in case of swallowing.
- With large orders the cost of neodymium magnets is a challenge,
Pull force analysis
Detachment force of the magnet in optimal conditions – what affects it?
- using a plate made of mild steel, functioning as a circuit closing element
- possessing a massiveness of at least 10 mm to ensure full flux closure
- with a surface cleaned and smooth
- under conditions of no distance (surface-to-surface)
- under perpendicular force vector (90-degree angle)
- in temp. approx. 20°C
Practical aspects of lifting capacity – factors
- Gap (between the magnet and the metal), as even a very small distance (e.g. 0.5 mm) can cause a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Steel grade – the best choice is high-permeability steel. Hardened steels may attract less.
- Base smoothness – the more even the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity testing was conducted on a smooth plate of optimal thickness, under perpendicular forces, whereas under shearing force the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.
Safe handling of NdFeB magnets
Safe distance
Powerful magnetic fields can destroy records on credit cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Swallowing risk
Product intended for adults. Tiny parts pose a choking risk, leading to severe trauma. Store out of reach of children and animals.
GPS and phone interference
GPS units and smartphones are extremely susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can decalibrate the sensors in your phone.
Dust explosion hazard
Dust produced during machining of magnets is flammable. Do not drill into magnets unless you are an expert.
Avoid contact if allergic
Studies show that the nickel plating (standard magnet coating) is a strong allergen. If you have an allergy, refrain from direct skin contact or choose versions in plastic housing.
Immense force
Be careful. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can react.
Physical harm
Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!
Danger to pacemakers
Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.
Magnet fragility
Watch out for shards. Magnets can explode upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.
Heat warning
Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. The loss of strength is permanent.
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
Rate the product
Your rating