SMZR 25x100 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140232
GTIN/EAN: 5906301813408
Diameter Ø
25 mm [±1 mm]
Height
100 mm [±1 mm]
Weight
440 g
Magnetic Flux
~ 8 500 Gauss [±5%]
307.50 ZŁ with VAT / pcs + price for transport
250.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical data of the product - SMZR 25x100 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x100 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140232 |
| GTIN/EAN | 5906301813408 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 100 mm [±1 mm] |
| Weight | 440 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 3 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 25x100 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 100 | mm (L) |
| Active length | 80 | mm |
| Section count | 3 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~373 | g |
| Active area | 63 | 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 (3 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% |
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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Advantages as well as disadvantages of rare earth magnets.
Benefits
- Their magnetic field remains stable, and after approximately ten years it drops only by ~1% (according to research),
- Magnets perfectly defend themselves against demagnetization caused by foreign field sources,
- A magnet with a shiny nickel surface looks better,
- They are known for high magnetic induction at the operating surface, which improves attraction properties,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, enabling functioning at temperatures reaching 230°C and above...
- Thanks to versatility in forming and the ability to customize to individual projects,
- Fundamental importance in advanced technology sectors – they find application in computer drives, electric motors, advanced medical instruments, also industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Disadvantages
- They are fragile upon heavy 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 strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
- Due to limitations in creating nuts and complicated shapes in magnets, we propose using cover - magnetic holder.
- Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Furthermore, tiny parts of these products are able to disrupt the diagnostic process medical in case of swallowing.
- Due to complex production process, their price is higher than average,
Holding force characteristics
Maximum magnetic pulling force – what contributes to it?
- on a block made of structural steel, perfectly concentrating the magnetic field
- with a cross-section of at least 10 mm
- with an polished contact surface
- with zero gap (without impurities)
- under perpendicular force vector (90-degree angle)
- at temperature room level
Magnet lifting force in use – key factors
- Gap between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Plate material – low-carbon steel gives the best results. Higher carbon content decrease magnetic properties and holding force.
- Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
- Thermal conditions – NdFeB sinters have a sensitivity to temperature. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate reduces the load capacity.
Precautions when working with NdFeB magnets
Bodily injuries
Large magnets can crush fingers instantly. Never place your hand between two strong magnets.
Nickel coating and allergies
A percentage of the population have a sensitization to Ni, which is the common plating for NdFeB magnets. Frequent touching can result in dermatitis. We suggest wear protective gloves.
Medical interference
Life threat: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Cards and drives
Data protection: Neodymium magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Thermal limits
Regular neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.
This is not a toy
Always keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are tragic.
Magnetic interference
An intense magnetic field interferes with the operation of magnetometers in smartphones and GPS navigation. Keep magnets close to a smartphone to prevent damaging the sensors.
Mechanical processing
Mechanical processing of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Protective goggles
Beware of splinters. Magnets can explode upon uncontrolled impact, launching shards into the air. Wear goggles.
Respect the power
Before use, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.
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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