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SM 25x100 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130287
GTIN/EAN: 5906301812807
Diameter Ø
25 mm [±1 mm]
Height
100 mm [±1 mm]
Weight
360 g
Magnetic Flux
~ 6 500 Gauss [±5%]
246.00 ZŁ with VAT / pcs + price for transport
200.00 ZŁ net + 23% VAT / pcs
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Technical of the product - SM 25x100 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 25x100 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130287 |
| GTIN/EAN | 5906301812807 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 100 mm [±1 mm] |
| Weight | 360 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 6 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 3 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 25x100 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 100 | mm (L) |
| Active length | 64 | mm |
| Section count | 2 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~373 | g |
| Active area | 50 | 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 (2 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% |
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.
Strengths
- They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
- Magnets very well protect themselves against demagnetization caused by foreign field sources,
- A magnet with a shiny silver surface has better aesthetics,
- Neodymium magnets achieve maximum magnetic induction on a their surface, which increases force concentration,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Considering the option of precise shaping and customization to custom requirements, magnetic components can be modeled in a variety of forms and dimensions, which makes them more universal,
- Wide application in modern technologies – they are commonly used in magnetic memories, brushless drives, medical devices, also industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which enables their usage in miniature devices
Weaknesses
- They are fragile upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power 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
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Limited possibility of producing threads in the magnet and complicated forms - preferred is cover - magnetic holder.
- Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Additionally, tiny parts of these products are able to disrupt the diagnostic process medical in case of swallowing.
- With budget limitations the cost of neodymium magnets is a challenge,
Pull force analysis
Maximum lifting capacity of the magnet – what affects it?
- using a plate made of low-carbon steel, functioning as a ideal flux conductor
- possessing a massiveness of minimum 10 mm to avoid saturation
- with a plane cleaned and smooth
- under conditions of gap-free contact (surface-to-surface)
- during pulling in a direction vertical to the mounting surface
- at room temperature
Lifting capacity in practice – influencing factors
- Gap between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Load vector – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Material composition – not every steel attracts identically. High carbon content worsen the attraction effect.
- Surface quality – the more even the surface, the larger the contact zone and stronger the hold. Unevenness creates an air distance.
- Temperature influence – hot environment reduces pulling force. Too high temperature can permanently demagnetize the magnet.
Lifting capacity testing was performed on a smooth plate of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
Safe handling of neodymium magnets
Hand protection
Large magnets can smash fingers instantly. Under no circumstances place your hand betwixt two attracting surfaces.
Skin irritation risks
Some people suffer from a hypersensitivity to nickel, which is the common plating for neodymium magnets. Extended handling can result in skin redness. We strongly advise use safety gloves.
Magnetic interference
Note: neodymium magnets generate a field that disrupts sensitive sensors. Maintain a separation from your mobile, tablet, and navigation systems.
Powerful field
Handle magnets consciously. Their huge power can surprise even experienced users. Be vigilant and do not underestimate their power.
Magnets are brittle
Protect your eyes. Magnets can explode upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.
Warning for heart patients
Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Thermal limits
Monitor thermal conditions. Exposing the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Fire warning
Fire warning: Neodymium dust is explosive. Do not process magnets without safety gear as this may cause fire.
Safe distance
Avoid bringing magnets close to a wallet, computer, or screen. The magnetic field can destroy these devices and erase data from cards.
Product not for children
Neodymium magnets are not toys. Eating multiple magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and necessitates immediate surgery.
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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