SMZR 25x125 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140233
GTIN/EAN: 5906301813415
Diameter Ø
25 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
540 g
Magnetic Flux
~ 8 500 Gauss [±5%]
369.00 ZŁ with VAT / pcs + price for transport
300.00 ZŁ net + 23% VAT / pcs
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Technical parameters of the product - SMZR 25x125 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x125 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140233 |
| GTIN/EAN | 5906301813415 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 540 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 4 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 25x125 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 125 | mm (L) |
| Active length | 105 | mm |
| Section count | 4 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~466 | g |
| Active area | 82 | 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 (4 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros and cons of neodymium magnets.
Pros
- They retain attractive force for around 10 years – the drop is just ~1% (in theory),
- Magnets perfectly defend themselves against demagnetization caused by external fields,
- In other words, due to the aesthetic layer of nickel, the element becomes visually attractive,
- They show high magnetic induction at the operating surface, which affects their effectiveness,
- 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 potential of free molding and adaptation to individualized requirements, NdFeB magnets can be manufactured in a variety of forms and dimensions, which makes them more universal,
- Wide application in high-tech industry – they find application in magnetic memories, electromotive mechanisms, advanced medical instruments, also industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Weaknesses
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- Limited ability of creating nuts in the magnet and complicated shapes - preferred is casing - magnet mounting.
- Possible danger to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. It is also worth noting that small elements of these devices are able to disrupt the diagnostic process medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Lifting parameters
Detachment force of the magnet in optimal conditions – what affects it?
- with the use of a yoke made of special test steel, ensuring maximum field concentration
- possessing a massiveness of min. 10 mm to ensure full flux closure
- characterized by lack of roughness
- with zero gap (without impurities)
- under vertical force direction (90-degree angle)
- at ambient temperature room level
Determinants of practical lifting force of a magnet
- Clearance – the presence of any layer (rust, dirt, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
- Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Steel grade – the best choice is high-permeability steel. Stainless steels may have worse magnetic properties.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
- Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Precautions when working with NdFeB magnets
Cards and drives
Avoid bringing magnets close to a purse, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.
Swallowing risk
Only for adults. Tiny parts can be swallowed, causing intestinal necrosis. Store away from children and animals.
Maximum temperature
Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. The loss of strength is permanent.
Crushing risk
Mind your fingers. Two large magnets will snap together instantly with a force of massive weight, destroying everything in their path. Be careful!
Shattering risk
Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.
GPS Danger
Navigation devices and smartphones are highly susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Dust is flammable
Fire warning: Rare earth powder is explosive. Avoid machining magnets in home conditions as this may cause fire.
Respect the power
Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.
Medical implants
Warning for patients: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.
Nickel coating and allergies
Allergy Notice: The nickel-copper-nickel coating consists of nickel. If skin irritation happens, immediately stop working with magnets and use protective gear.
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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