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SM 25x200 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130364
GTIN/EAN: 5906301813125
Diameter Ø
25 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
760 g
Magnetic Flux
~ 8 500 Gauss [±5%]
615.00 ZŁ with VAT / pcs + price for transport
500.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical details - SM 25x200 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x200 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130364 |
| GTIN/EAN | 5906301813125 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 200 mm [±1 mm] |
| Weight | 760 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 7 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 25x200 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 200 | mm (L) |
| Active length | 164 | mm |
| Section count | 7 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~746 | g |
| Active area | 129 | 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 (7 sections)
Chart 3: Temperature performance
Material specification
| 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 Nd2Fe14B magnets.
Advantages
- They have constant strength, and over around ten years their performance decreases symbolically – ~1% (in testing),
- They are resistant to demagnetization induced by external field influence,
- Thanks to the metallic finish, the coating of nickel, gold, or silver gives an clean appearance,
- Neodymium magnets generate maximum magnetic induction on a small area, which allows for strong attraction,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
- Thanks to the potential of free molding and adaptation to specialized needs, NdFeB magnets can be produced in a wide range of geometric configurations, which makes them more universal,
- Universal use in electronics industry – they serve a role in computer drives, electric drive systems, diagnostic systems, and complex engineering applications.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength 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 rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We suggest cover - magnetic holder, due to difficulties in producing threads inside the magnet and complex forms.
- Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small elements of these products can disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what affects it?
- using a plate made of mild steel, acting as a circuit closing element
- with a thickness of at least 10 mm
- characterized by even structure
- under conditions of ideal adhesion (metal-to-metal)
- during detachment in a direction vertical to the mounting surface
- in neutral thermal conditions
Magnet lifting force in use – key factors
- Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) 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 capacity drops drastically, often to levels of 20-30% of the nominal value.
- Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
- Metal type – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
- Surface structure – the smoother and more polished the surface, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity was measured by applying a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under shearing force the holding force is lower. Additionally, even a small distance between the magnet and the plate lowers the lifting capacity.
Safety rules for work with neodymium magnets
Bone fractures
Large magnets can crush fingers in a fraction of a second. Do not put your hand betwixt two attracting surfaces.
Medical interference
Warning for patients: Powerful magnets disrupt medical devices. Maintain at least 30 cm distance or request help to work with the magnets.
Material brittleness
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Electronic devices
Avoid bringing magnets near a purse, computer, or TV. The magnetism can irreversibly ruin these devices and erase data from cards.
Adults only
Neodymium magnets are not suitable for play. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which poses a severe health hazard and necessitates urgent medical intervention.
Flammability
Dust created during machining of magnets is combustible. Do not drill into magnets without proper cooling and knowledge.
Heat sensitivity
Keep cool. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, look for special high-temperature series (H, SH, UH).
GPS and phone interference
An intense magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Keep magnets close to a smartphone to prevent damaging the sensors.
Respect the power
Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.
Avoid contact if allergic
Medical facts indicate that the nickel plating (the usual finish) is a common allergen. If you have an allergy, avoid direct skin contact or choose encased magnets.
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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