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SM 25x400 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130470
GTIN/EAN: 5906301813132
Diameter Ø
25 mm [±1 mm]
Height
400 mm [±1 mm]
Weight
1560 g
Magnetic Flux
~ 8 500 Gauss [±5%]
1205.40 ZŁ with VAT / pcs + price for transport
980.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Strength as well as structure of neodymium magnets can be estimated using our
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Product card - SM 25x400 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x400 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130470 |
| GTIN/EAN | 5906301813132 |
| 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 | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 15 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 25x400 [2xM8] / N52
| 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) | 18.1 | kg (theor.) |
| Induction (surface) | ~8 500 | 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 |
Other proposals
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Pros as well as cons of rare earth magnets.
Advantages
- They virtually do not lose strength, because even after ten years the performance loss is only ~1% (according to literature),
- Magnets effectively protect themselves against loss of magnetization caused by ambient magnetic noise,
- A magnet with a shiny nickel surface looks better,
- Magnetic induction on the working part of the magnet turns out to be extremely intense,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Thanks to flexibility in designing and the capacity to adapt to complex applications,
- Universal use in modern industrial fields – they are utilized in mass storage devices, electric drive systems, medical equipment, and modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in compact constructions
Disadvantages
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
- Limited ability of producing threads in the magnet and complex forms - recommended is a housing - magnetic holder.
- Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that small components of these devices are able to complicate diagnosis medical after entering the body.
- With budget limitations the cost of neodymium magnets can be a barrier,
Pull force analysis
Highest magnetic holding force – what affects it?
- on a block made of mild steel, optimally conducting the magnetic flux
- with a thickness minimum 10 mm
- with a plane perfectly flat
- under conditions of ideal adhesion (surface-to-surface)
- under perpendicular force vector (90-degree angle)
- at temperature approx. 20 degrees Celsius
Key elements affecting lifting force
- Distance – existence of any layer (rust, tape, air) acts as an insulator, which lowers capacity steeply (even by 50% at 0.5 mm).
- Angle of force application – highest force is available only during perpendicular pulling. The force required to slide of the magnet along the surface is typically many times smaller (approx. 1/5 of the lifting capacity).
- Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Metal type – different alloys reacts the same. High carbon content weaken the attraction effect.
- Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity was measured by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a minimal clearance between the magnet and the plate decreases the lifting capacity.
Safe handling of neodymium magnets
Protect data
Intense magnetic fields can erase data on credit cards, HDDs, and storage devices. Keep a distance of at least 10 cm.
Implant safety
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.
Power loss in heat
Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Handling rules
Handle magnets with awareness. Their huge power can shock even professionals. Stay alert and respect their force.
Serious injuries
Mind your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!
This is not a toy
Strictly store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets connecting inside the body are tragic.
Dust explosion hazard
Drilling and cutting of NdFeB material poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Material brittleness
Despite the nickel coating, the material is delicate and not impact-resistant. Do not hit, as the magnet may crumble into sharp, dangerous pieces.
Nickel coating and allergies
Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation happens, cease working with magnets and wear gloves.
Keep away from electronics
A strong magnetic field interferes with the functioning of compasses in smartphones and GPS navigation. Do not bring magnets near a smartphone to avoid breaking the sensors.
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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