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SM 25x300 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130373
GTIN/EAN: 5906301813217
Diameter Ø
25 mm [±1 mm]
Height
300 mm [±1 mm]
Weight
1160 g
Magnetic Flux
~ 8 500 Gauss [±5%]
910.20 ZŁ with VAT / pcs + price for transport
740.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Physical properties - SM 25x300 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x300 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130373 |
| GTIN/EAN | 5906301813217 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 1160 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 11 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
SM 25x300 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 300 | mm (L) |
| Active length | 264 | mm |
| Section count | 11 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1119 | g |
| Active area | 207 | 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 (11 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other products
Pros and cons of rare earth magnets.
Advantages
- They do not lose magnetism, even after nearly 10 years – the drop in power is only ~1% (based on measurements),
- They retain their magnetic properties even under close interference source,
- Thanks to the glossy finish, the surface of Ni-Cu-Ni, gold, or silver-plated gives an professional appearance,
- They feature high magnetic induction at the operating surface, making them more effective,
- Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures approaching 230°C and above...
- Thanks to flexibility in designing and the ability to modify to client solutions,
- Significant place in electronics industry – they are utilized in data components, electromotive mechanisms, diagnostic systems, and modern systems.
- Thanks to concentrated force, small magnets offer high operating force, in miniature format,
Disadvantages
- They are prone to damage 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
- 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, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Limited ability of making threads in the magnet and complicated forms - preferred is cover - magnet mounting.
- Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small elements of these devices can be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Best holding force of the magnet in ideal parameters – what it depends on?
- on a base made of mild steel, perfectly concentrating the magnetic flux
- whose transverse dimension reaches at least 10 mm
- with a plane perfectly flat
- under conditions of ideal adhesion (surface-to-surface)
- for force acting at a right angle (pull-off, not shear)
- in temp. approx. 20°C
Lifting capacity in practice – influencing factors
- Space between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Material composition – different alloys attracts identically. Alloy additives weaken the attraction effect.
- Plate texture – smooth surfaces guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
- Thermal environment – heating the magnet causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was carried out on a smooth plate of suitable thickness, under a perpendicular pulling force, however under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Warnings
Immense force
Handle magnets consciously. Their huge power can surprise even experienced users. Plan your moves and respect their force.
Medical implants
Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Crushing risk
Pinching hazard: The pulling power is so great that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.
Heat warning
Avoid heat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).
Nickel allergy
Certain individuals suffer from a contact allergy to nickel, which is the common plating for neodymium magnets. Frequent touching might lead to skin redness. We suggest wear safety gloves.
Adults only
Absolutely store magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are fatal.
Phone sensors
A strong magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Maintain magnets close to a smartphone to avoid damaging the sensors.
Mechanical processing
Dust produced during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.
Magnetic media
Avoid bringing magnets close to a purse, computer, or TV. The magnetic field can destroy these devices and erase data from cards.
Material brittleness
Neodymium magnets are sintered ceramics, which means they are very brittle. Collision of two magnets will cause them cracking into small pieces.
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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