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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
bulk discounts:
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Technical - 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
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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
![SM 18x150 [2xM5] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-18x150-2xm5-pec.jpg "SM 18x150 [2xM5] / N42 - magnetic separator")
Advantages and disadvantages of neodymium magnets.
Strengths
- They retain full power for around 10 years – the drop is just ~1% (in theory),
- They do not lose their magnetic properties even under external field action,
- A magnet with a metallic silver surface looks better,
- Neodymium magnets deliver maximum magnetic induction on a their surface, which allows for strong attraction,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Due to the potential of flexible shaping and customization to individualized solutions, NdFeB magnets can be manufactured in a broad palette of shapes and sizes, which makes them more universal,
- Wide application in future technologies – they are used in magnetic memories, electric motors, medical devices, also complex engineering applications.
- Thanks to their power density, small magnets offer high operating force, with minimal size,
Cons
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
- Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We suggest a housing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complicated shapes.
- Potential hazard related to microscopic parts of magnets pose a threat, in case of ingestion, which becomes key in the context of child health protection. Furthermore, tiny parts of these devices can disrupt the diagnostic process medical when they are in the body.
- With budget limitations the cost of neodymium magnets is a challenge,
Holding force characteristics
Maximum magnetic pulling force – what it depends on?
- with the contact of a sheet made of special test steel, guaranteeing full magnetic saturation
- possessing a massiveness of minimum 10 mm to avoid saturation
- with a plane perfectly flat
- with total lack of distance (without paint)
- for force applied at a right angle (in the magnet axis)
- at conditions approx. 20°C
Determinants of lifting force in real conditions
- Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
- Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
- Plate material – low-carbon steel gives the best results. Higher carbon content decrease magnetic permeability and lifting capacity.
- Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
- Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and at low temperatures gain strength (up to a certain limit).
Lifting capacity was assessed using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
Warnings
Phone sensors
A powerful magnetic field disrupts the functioning of magnetometers in smartphones and GPS navigation. Keep magnets near a device to avoid damaging the sensors.
Physical harm
Large magnets can smash fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.
Dust is flammable
Combustion risk: Rare earth powder is explosive. Do not process magnets in home conditions as this may cause fire.
Thermal limits
Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and pulling force.
Do not underestimate power
Handle magnets with awareness. Their powerful strength can surprise even professionals. Be vigilant and do not underestimate their power.
Do not give to children
Adult use only. Tiny parts can be swallowed, causing severe trauma. Store away from children and animals.
Avoid contact if allergic
Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If your skin reacts to metals, avoid direct skin contact and opt for versions in plastic housing.
Warning for heart patients
Warning for patients: Powerful magnets affect medical devices. Keep at least 30 cm distance or request help to handle the magnets.
Electronic devices
Avoid bringing magnets close to a purse, computer, or TV. The magnetism can destroy these devices and wipe information from cards.
Magnets are brittle
Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments 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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