SMZR 25x250 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140236
GTIN/EAN: 5906301813446
Diameter Ø
25 mm [±1 mm]
Height
250 mm [±1 mm]
Weight
840 g
Magnetic Flux
~ 8 500 Gauss [±5%]
676.50 ZŁ with VAT / pcs + price for transport
550.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical parameters of the product - SMZR 25x250 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x250 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140236 |
| GTIN/EAN | 5906301813446 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 250 mm [±1 mm] |
| Weight | 840 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 9 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 25x250 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 250 | mm (L) |
| Active length | 230 | mm |
| Section count | 10 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~933 | g |
| Active area | 181 | 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 (10 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Strengths as well as weaknesses of neodymium magnets.
Advantages
- Their magnetic field is maintained, and after around 10 years it drops only by ~1% (according to research),
- Neodymium magnets are characterized by highly resistant to loss of magnetic properties caused by magnetic disturbances,
- Thanks to the glossy finish, the plating of Ni-Cu-Ni, gold-plated, or silver-plated gives an modern appearance,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Considering the option of precise molding and adaptation to specialized solutions, magnetic components can be modeled in a broad palette of shapes and sizes, which amplifies use scope,
- Key role in modern technologies – they serve a role in magnetic memories, motor assemblies, medical devices, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which allows their use in small systems
Cons
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Due to limitations in creating nuts and complicated forms in magnets, we recommend using casing - magnetic holder.
- Health risk resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the context of child safety. Additionally, small elements of these devices are able to disrupt the diagnostic process medical when they are in the body.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Pull force analysis
Maximum magnetic pulling force – what it depends on?
- with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
- with a cross-section no less than 10 mm
- characterized by even structure
- without any insulating layer between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- at room temperature
Practical aspects of lifting capacity – factors
- Space between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
- Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
- Base massiveness – too thin sheet does not accept the full field, causing part of the flux to be escaped to the other side.
- Material composition – different alloys attracts identically. High carbon content worsen the attraction effect.
- Smoothness – full contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
- Temperature – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity was determined with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.
Warnings
Protective goggles
Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
Protect data
Avoid bringing magnets close to a wallet, computer, or screen. The magnetic field can destroy these devices and erase data from cards.
Machining danger
Combustion risk: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Crushing risk
Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.
Powerful field
Exercise caution. Neodymium magnets attract from a distance and snap with massive power, often quicker than you can react.
Health Danger
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Precision electronics
A powerful magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Maintain magnets close to a smartphone to avoid breaking the sensors.
Heat sensitivity
Keep cool. NdFeB magnets are sensitive to temperature. If you need resistance above 80°C, ask us about HT versions (H, SH, UH).
Skin irritation risks
Medical facts indicate that the nickel plating (standard magnet coating) is a strong allergen. For allergy sufferers, refrain from touching magnets with bare hands and choose encased magnets.
No play value
Absolutely store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are life-threatening.
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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