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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
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Technical - 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% |
Sustainability
| 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.
Benefits
- Their magnetic field is maintained, and after approximately 10 years it drops only by ~1% (according to research),
- They do not lose their magnetic properties even under close interference source,
- A magnet with a metallic silver surface is more attractive,
- The surface of neodymium magnets generates a powerful magnetic field – this is a distinguishing feature,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures reaching 230°C and above...
- Considering the option of accurate forming and adaptation to custom solutions, magnetic components can be produced in a variety of shapes and sizes, which amplifies use scope,
- Huge importance in innovative solutions – they are commonly used in data components, electric drive systems, precision medical tools, also complex engineering applications.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Cons
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited possibility of producing nuts in the magnet and complex shapes - recommended is casing - magnetic holder.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these magnets can disrupt the diagnostic process medical when they are in the body.
- With large orders the cost of neodymium magnets is economically unviable,
Pull force analysis
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
- possessing a massiveness of at least 10 mm to ensure full flux closure
- with a plane cleaned and smooth
- under conditions of no distance (metal-to-metal)
- under perpendicular force vector (90-degree angle)
- at ambient temperature room level
Determinants of practical lifting force of a magnet
- Gap (between the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
- Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
- Base massiveness – too thin plate does not accept the full field, causing part of the flux to be lost to the other side.
- Chemical composition of the base – mild steel gives the best results. Alloy steels lower magnetic properties and lifting capacity.
- Surface quality – the more even the plate, the better the adhesion and stronger the hold. Unevenness creates an air distance.
- Thermal factor – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.
Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, however under parallel forces the holding force is lower. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.
Precautions when working with NdFeB magnets
Do not underestimate power
Handle magnets consciously. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their force.
Medical interference
Life threat: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.
Machining danger
Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.
Hand protection
Danger of trauma: The pulling power is so great that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Warning for allergy sufferers
Warning for allergy sufferers: The nickel-copper-nickel coating contains nickel. If redness happens, cease working with magnets and use protective gear.
Keep away from children
Product intended for adults. Tiny parts can be swallowed, causing serious injuries. Keep out of reach of children and animals.
GPS Danger
Be aware: rare earth magnets produce a field that interferes with precision electronics. Keep a safe distance from your mobile, device, and navigation systems.
Magnetic media
Do not bring magnets close to a purse, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.
Permanent damage
Avoid heat. NdFeB magnets are susceptible to heat. If you need operation above 80°C, inquire about HT versions (H, SH, UH).
Magnets are brittle
Beware of splinters. Magnets can fracture upon violent connection, ejecting shards into the air. Wear goggles.
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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