SMZR 25x225 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140235
GTIN/EAN: 5906301813439
Diameter Ø
25 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
740 g
Magnetic Flux
~ 8 500 Gauss [±5%]
615.00 ZŁ with VAT / pcs + price for transport
500.00 ZŁ net + 23% VAT / pcs
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Detailed specification - SMZR 25x225 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x225 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140235 |
| GTIN/EAN | 5906301813439 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 740 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 8 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 25x225 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 225 | mm (L) |
| Active length | 205 | mm |
| Section count | 8 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~839 | g |
| Active area | 161 | 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 (8 sections)
Chart 3: Temperature performance
Elemental analysis
| 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
Pros and cons of neodymium magnets.
Advantages
- They have unchanged lifting capacity, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
- Neodymium magnets prove to be extremely resistant to demagnetization caused by external field sources,
- By covering with a shiny layer of nickel, the element presents an nice look,
- Magnetic induction on the working part of the magnet remains very high,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Due to the option of accurate shaping and adaptation to individualized projects, NdFeB magnets can be created in a variety of geometric configurations, which increases their versatility,
- Key role in future technologies – they find application in mass storage devices, motor assemblies, precision medical tools, as well as other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
- Neodymium magnets decrease 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
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Limited ability of producing threads in the magnet and complex forms - preferred is casing - mounting mechanism.
- Health risk to health – tiny shards of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Furthermore, small components of these products are able to disrupt the diagnostic process medical after entering the body.
- Due to neodymium price, their price is higher than average,
Pull force analysis
Maximum lifting force for a neodymium magnet – what contributes to it?
- using a sheet made of high-permeability steel, acting as a ideal flux conductor
- with a thickness of at least 10 mm
- characterized by even structure
- with total lack of distance (no impurities)
- during detachment in a direction vertical to the plane
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Gap between magnet and steel – every millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
- Force direction – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Base massiveness – too thin sheet does not close the flux, causing part of the power to be lost to the other side.
- Steel grade – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
- Smoothness – full contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Temperature influence – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Safety rules for work with NdFeB magnets
Finger safety
Watch your fingers. Two large magnets will join instantly with a force of massive weight, crushing everything in their path. Exercise extreme caution!
Adults only
Only for adults. Small elements pose a choking risk, leading to severe trauma. Store out of reach of children and animals.
Shattering risk
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them cracking into shards.
Dust explosion hazard
Combustion risk: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this risks ignition.
Conscious usage
Handle magnets consciously. Their powerful strength can surprise even experienced users. Be vigilant and respect their force.
Power loss in heat
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. The loss of strength is permanent.
Medical implants
Life threat: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.
Magnetic interference
GPS units and mobile phones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Threat to electronics
Avoid bringing magnets near a wallet, laptop, or TV. The magnetic field can permanently damage these devices and erase data from cards.
Nickel allergy
Studies show that the nickel plating (the usual finish) is a strong allergen. If you have an allergy, prevent direct skin contact and select coated magnets.
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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