SMZR 25x200 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140444
GTIN/EAN: 5906301813507
- Diameter Ø
- 25 mm [±1 mm]
- Height
- 200 mm [±1 mm]
- Weight
- 0.01 g
- Magnetic Flux
- ~ 8 500 Gauss [±5%]
553.50 zł with VAT / pcs + price for transport
450.00 zł net + 23% VAT / pcs
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Technical - SMZR 25x200 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x200 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140444 |
| GTIN/EAN | 5906301813507 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 200 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 7 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 25x200 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 200 | mm (L) |
| Active length | 180 | mm |
| Section count | 7 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~746 | g |
| Active area | 141 | 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 (7 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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Strengths and weaknesses of neodymium magnets.
Pros
- Their power is maintained, and after around ten years it drops only by ~1% (according to research),
- They retain their magnetic properties even under close interference source,
- By using a smooth layer of silver, the element gains an elegant look,
- Magnets exhibit extremely high magnetic induction on the surface,
- 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...
- Due to the potential of accurate forming and customization to individualized requirements, NdFeB magnets can be modeled in a wide range of shapes and sizes, which expands the range of possible applications,
- Universal use in advanced technology sectors – they serve a role in data components, motor assemblies, precision medical tools, and other advanced devices.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Limitations
- They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend 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 those in rubber or plastics, which secure oxidation and corrosion.
- Limited ability of making nuts in the magnet and complicated shapes - recommended is casing - magnetic holder.
- Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these devices are able to complicate diagnosis medical in case of swallowing.
- Due to complex production process, their price is higher than average,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- using a sheet made of high-permeability steel, functioning as a circuit closing element
- whose transverse dimension is min. 10 mm
- characterized by lack of roughness
- under conditions of no distance (surface-to-surface)
- for force applied at a right angle (in the magnet axis)
- in temp. approx. 20°C
What influences lifting capacity in practice
- Gap (betwixt the magnet and the plate), because even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Direction of force – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Steel grade – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
- Surface quality – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).
Lifting capacity was assessed by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under parallel forces the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet’s surface and the plate lowers the holding force.
Precautions when working with NdFeB magnets
Do not underestimate power
Handle magnets with awareness. Their immense force can shock even professionals. Plan your moves and respect their power.
Bodily injuries
Pinching hazard: The pulling power is so great that it can result in hematomas, crushing, and even bone fractures. Use thick gloves.
Pacemakers
For implant holders: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.
Keep away from children
Product intended for adults. Small elements pose a choking risk, causing intestinal necrosis. Store away from children and animals.
Protective goggles
Protect your eyes. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Permanent damage
Monitor thermal conditions. Exposing the magnet to high heat will ruin its properties and strength.
Warning for allergy sufferers
Some people experience a sensitization to nickel, which is the typical protective layer for neodymium magnets. Extended handling can result in an allergic reaction. We suggest use protective gloves.
Safe distance
Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (pacemakers, medical aids, timepieces).
Precision electronics
A strong magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Do not bring magnets near a device to prevent breaking the sensors.
Fire risk
Combustion risk: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.
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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