![Magnetic bar SM 25x225 [2xM8] / N52](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Magnetic bar SM 25x225 [2xM8] / N52")
![SM 25x225 [2xM8] / N52 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-25x225-2xm8-lod.jpg)
SM 25x225 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130354
GTIN/EAN: 5906301813026
Diameter Ø
25 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 9 500 Gauss [±5%]
688.80 ZŁ with VAT / pcs + price for transport
560.00 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?Looking for a better price?
Give us a call
+48 888 99 98 98
or let us know using
inquiry form
the contact form page.
Force as well as appearance of a magnet can be reviewed with our
online calculation tool.
Same-day processing for orders placed before 14:00.
SM 25x225 [2xM8] / N52 - magnetic separator
Specification / characteristics SM 25x225 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130354 |
| GTIN/EAN | 5906301813026 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 9 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 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 |
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
![BM 320x180x70 [4x M8] - magnetic beam](https://cdn3.dhit.pl/graphics/products/bm-320x180x70-4x-m8-rar.jpg "BM 320x180x70 [4x M8] - magnetic beam")
Strengths and weaknesses of rare earth magnets.
Pros
- Their strength remains stable, and after approximately ten years it drops only by ~1% (according to research),
- They possess excellent resistance to magnetism drop as a result of external fields,
- By using a shiny layer of gold, the element acquires an proper look,
- Magnetic induction on the surface of the magnet is strong,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of exact shaping as well as adapting to defined conditions,
- Significant place in electronics industry – they are utilized in hard drives, motor assemblies, advanced medical instruments, as well as technologically advanced constructions.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only secures them against impacts but also raises their durability
- We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- They oxidize in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Due to limitations in producing threads and complex shapes in magnets, we recommend using a housing - magnetic mechanism.
- Possible danger to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small components of these magnets are able to be problematic in diagnostics medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what it depends on?
- on a block made of structural steel, perfectly concentrating the magnetic field
- whose transverse dimension is min. 10 mm
- with a plane free of scratches
- without any clearance between the magnet and steel
- during detachment in a direction perpendicular to the mounting surface
- at ambient temperature room level
What influences lifting capacity in practice
- Gap (between the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) leads to a decrease in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
- Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
- Chemical composition of the base – mild steel attracts best. Higher carbon content lower magnetic permeability and lifting capacity.
- Plate texture – smooth surfaces ensure maximum contact, which increases force. Rough surfaces reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. When it is hot they are weaker, and in frost they can be stronger (up to a certain limit).
Lifting capacity was determined by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the load capacity.
Combustion hazard
Powder generated during machining of magnets is flammable. Do not drill into magnets unless you are an expert.
Choking Hazard
NdFeB magnets are not intended for children. Accidental ingestion of a few magnets may result in them connecting inside the digestive tract, which poses a critical condition and requires urgent medical intervention.
GPS Danger
GPS units and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can ruin the internal compass in your phone.
Handling guide
Exercise caution. Rare earth magnets act from a long distance and snap with huge force, often quicker than you can move away.
Nickel allergy
Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, avoid direct skin contact or choose versions in plastic housing.
Danger to pacemakers
Medical warning: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.
Keep away from computers
Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Eye protection
Watch out for shards. Magnets can explode upon violent connection, launching shards into the air. Eye protection is mandatory.
Crushing force
Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!
Do not overheat magnets
Avoid heat. NdFeB magnets are sensitive to temperature. If you need operation above 80°C, inquire about HT versions (H, SH, UH).
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
Rate the product
Your rating