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
bulk discounts:
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Technical data 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages as well as disadvantages of neodymium magnets.
Benefits
- Their magnetic field remains stable, and after around ten years it decreases only by ~1% (theoretically),
- Neodymium magnets are characterized by exceptionally resistant to loss of magnetic properties caused by magnetic disturbances,
- A magnet with a shiny gold surface has an effective appearance,
- The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing 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 versatility in constructing and the capacity to modify to complex applications,
- Huge importance in future technologies – they are used in HDD drives, drive modules, medical devices, and modern systems.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Disadvantages
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening 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 advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
- Due to limitations in realizing threads and complicated forms in magnets, we propose using cover - magnetic holder.
- Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. Furthermore, small elements of these products can complicate diagnosis medical when they are in the body.
- Due to neodymium price, their price is relatively high,
Pull force analysis
Maximum lifting force for a neodymium magnet – what affects it?
- with the application of a sheet made of low-carbon steel, ensuring full magnetic saturation
- whose transverse dimension equals approx. 10 mm
- with an ideally smooth touching surface
- under conditions of no distance (surface-to-surface)
- during pulling in a direction perpendicular to the mounting surface
- at temperature approx. 20 degrees Celsius
Determinants of practical lifting force of a magnet
- Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
- Force direction – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Metal type – different alloys attracts identically. Alloy additives weaken the attraction effect.
- Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.
Holding force was measured on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a small distance between the magnet and the plate reduces the lifting capacity.
Safety rules for work with NdFeB magnets
Maximum temperature
Keep cool. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Threat to electronics
Do not bring magnets close to a wallet, computer, or screen. The magnetism can irreversibly ruin these devices and erase data from cards.
Nickel coating and allergies
Studies show that the nickel plating (the usual finish) is a potent allergen. If your skin reacts to metals, prevent direct skin contact or choose encased magnets.
Pinching danger
Watch your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Health Danger
Individuals with a heart stimulator have to keep an absolute distance from magnets. The magnetism can interfere with the functioning of the life-saving device.
Impact on smartphones
A strong magnetic field disrupts the operation of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to prevent damaging the sensors.
Caution required
Handle magnets consciously. Their powerful strength can shock even experienced users. Plan your moves and do not underestimate their power.
Fire risk
Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.
Fragile material
Neodymium magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them shattering into small pieces.
Product not for children
Neodymium magnets are not toys. Eating several magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and necessitates immediate surgery.
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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