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SM 25x400 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130365
GTIN/EAN: 5906301813392
- Diameter Ø
- 25 mm [±1 mm]
- Height
- 400 mm [±1 mm]
- Weight
- 1560 g
- Magnetic Flux
- ~ 6 500 Gauss [±5%]
1131.60 zł with VAT / pcs + price for transport
920.00 zł net + 23% VAT / pcs
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Technical of the product - SM 25x400 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 25x400 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130365 |
| GTIN/EAN | 5906301813392 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 400 mm [±1 mm] |
| Weight | 1560 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 6 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 15 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 25x400 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 400 | mm (L) |
| Active length | 364 | mm |
| Section count | 15 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1492 | g |
| Active area | 286 | 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) | 10.6 | kg (theor.) |
| Induction (surface) | ~6 500 | Gauss (Max) |
Chart 2: Field profile (15 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% |
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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Strengths and weaknesses of neodymium magnets.
Pros
- They have stable power, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
- They are resistant to demagnetization induced by presence of other magnetic fields,
- In other words, due to the metallic layer of silver, the element looks attractive,
- Neodymium magnets generate maximum magnetic induction on a their surface, which allows for strong attraction,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures reaching 230°C and above...
- Thanks to freedom in forming and the capacity to customize to unusual requirements,
- Versatile presence in modern industrial fields – they are commonly used in mass storage devices, electric motors, diagnostic systems, and other advanced devices.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Limitations
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
- NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 extremely resistant to heat
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of making nuts in the magnet and complicated forms - recommended is casing - magnet mounting.
- Possible danger to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child safety. Furthermore, tiny parts of these products are able to complicate diagnosis medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Highest magnetic holding force – what contributes to it?
- on a base made of structural steel, effectively closing the magnetic field
- whose thickness equals approx. 10 mm
- with a surface cleaned and smooth
- without the slightest air gap between the magnet and steel
- under perpendicular application of breakaway force (90-degree angle)
- at ambient temperature room level
Impact of factors on magnetic holding capacity in practice
- Gap (betwixt the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
- Loading method – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Material type – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
- Surface quality – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
- Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a minimal clearance between the magnet and the plate lowers the holding force.
Warnings
Warning for allergy sufferers
Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction appears, immediately stop handling magnets and wear gloves.
Keep away from electronics
Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Keep a separation from your mobile, tablet, and GPS.
Fire risk
Mechanical processing of NdFeB material carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Handling guide
Exercise caution. Rare earth magnets act from a distance and snap with huge force, often quicker than you can react.
Protective goggles
NdFeB magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets leads to them breaking into small pieces.
Keep away from computers
Data protection: Strong magnets can damage payment cards and delicate electronics (heart implants, medical aids, mechanical watches).
Choking Hazard
Strictly store magnets out of reach of children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are fatal.
ICD Warning
Warning for patients: Powerful magnets affect electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
Maximum temperature
Monitor thermal conditions. Exposing the magnet to high heat will ruin its magnetic structure and pulling force.
Pinching danger
Pinching hazard: The pulling power is so immense that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.
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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