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
bulk discounts:
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Technical parameters - 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% |
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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Pros as well as cons of neodymium magnets.
Advantages
- They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
- They retain their magnetic properties even under close interference source,
- Thanks to the shiny finish, the surface of nickel, gold-plated, or silver gives an modern appearance,
- The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to flexibility in shaping and the ability to modify to complex applications,
- Wide application in advanced technology sectors – they find application in HDD drives, drive modules, precision medical tools, as well as industrial machines.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Disadvantages
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power 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 rust. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
- 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, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
- With large orders the cost of neodymium magnets is a challenge,
Pull force analysis
Optimal lifting capacity of a neodymium magnet – what affects it?
- on a plate made of structural steel, optimally conducting the magnetic flux
- possessing a thickness of min. 10 mm to ensure full flux closure
- with a surface cleaned and smooth
- with total lack of distance (without impurities)
- during detachment in a direction perpendicular to the mounting surface
- in temp. approx. 20°C
Determinants of practical lifting force of a magnet
- Distance (betwixt the magnet and the metal), since even a very small clearance (e.g. 0.5 mm) can cause a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
- Direction of force – highest force is available only during perpendicular pulling. The shear force of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
- Chemical composition of the base – mild steel gives the best results. Alloy steels decrease magnetic permeability and lifting capacity.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Rough surfaces reduce efficiency.
- Temperature – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under shearing force the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of NdFeB magnets
Mechanical processing
Dust produced during machining of magnets is self-igniting. Do not drill into magnets unless you are an expert.
Demagnetization risk
Regular neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.
Respect the power
Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.
Choking Hazard
Product intended for adults. Tiny parts pose a choking risk, causing serious injuries. Keep out of reach of children and animals.
Cards and drives
Device Safety: Strong magnets can damage data carriers and delicate electronics (heart implants, hearing aids, mechanical watches).
Metal Allergy
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, cease handling magnets and use protective gear.
Magnets are brittle
Protect your eyes. Magnets can fracture upon violent connection, launching shards into the air. We recommend safety glasses.
Magnetic interference
Navigation devices and smartphones are highly sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Crushing risk
Mind your fingers. Two powerful magnets will join immediately with a force of several hundred kilograms, destroying everything in their path. Be careful!
Medical implants
People with a heart stimulator should maintain an large gap from magnets. The magnetism can interfere with the functioning of the life-saving device.
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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