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
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Lifting power along with structure of a neodymium magnet can be estimated with our
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Detailed specification - 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
Elemental analysis
| 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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Advantages and disadvantages of rare earth magnets.
Benefits
- Their power is maintained, and after around ten years it decreases only by ~1% (according to research),
- Magnets effectively resist against demagnetization caused by foreign field sources,
- By applying a reflective coating of nickel, the element gains an professional look,
- Magnets are distinguished by very high magnetic induction on the outer side,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Thanks to versatility in designing and the ability to adapt to client solutions,
- Significant place in future technologies – they find application in mass storage devices, electric motors, medical devices, and industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- We recommend cover - magnetic holder, due to difficulties in producing threads inside the magnet and complicated forms.
- Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products can disrupt the diagnostic process medical when they are in the body.
- With mass production the cost of neodymium magnets is a challenge,
Holding force characteristics
Maximum lifting capacity of the magnet – what affects it?
- using a sheet made of mild steel, functioning as a circuit closing element
- possessing a massiveness of at least 10 mm to avoid saturation
- with an ground contact surface
- with total lack of distance (without impurities)
- under vertical force direction (90-degree angle)
- in stable room temperature
Impact of factors on magnetic holding capacity in practice
- Distance – existence of foreign body (rust, dirt, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Base massiveness – insufficiently thick steel does not accept the full field, causing part of the power to be lost into the air.
- Material type – the best choice is high-permeability steel. Hardened steels may generate lower lifting capacity.
- Surface quality – the more even the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Thermal environment – heating the magnet results in weakening of force. Check the maximum operating temperature for a given model.
Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the holding force.
Safety rules for work with neodymium magnets
Demagnetization risk
Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. This process is irreversible.
Sensitization to coating
It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, refrain from direct skin contact and choose versions in plastic housing.
Immense force
Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
This is not a toy
Neodymium magnets are not intended for children. Eating multiple magnets can lead to them connecting inside the digestive tract, which poses a critical condition and necessitates urgent medical intervention.
Beware of splinters
Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into hazardous fragments.
Electronic hazard
Equipment safety: Strong magnets can ruin data carriers and delicate electronics (heart implants, medical aids, timepieces).
Dust is flammable
Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Life threat
For implant holders: Strong magnetic fields disrupt electronics. Maintain minimum 30 cm distance or ask another person to handle the magnets.
Compass and GPS
An intense magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Do not bring magnets near a device to avoid damaging the sensors.
Bone fractures
Watch your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!
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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