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SM 25x175 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130369
GTIN/EAN: 5906301813170
Diameter Ø
25 mm [±1 mm]
Height
175 mm [±1 mm]
Weight
660 g
Magnetic Flux
~ 9 500 Gauss [±5%]
541.20 ZŁ with VAT / pcs + price for transport
440.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - SM 25x175 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x175 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130369 |
| GTIN/EAN | 5906301813170 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 175 mm [±1 mm] |
| Weight | 660 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 9 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 6 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 25x175 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 175 | mm (L) |
| Active length | 139 | mm |
| Section count | 6 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~653 | g |
| Active area | 109 | 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) | 22.6 | kg (theor.) |
| Induction (surface) | ~9 500 | Gauss (Max) |
Chart 2: Field profile (6 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Pros as well as cons of neodymium magnets.
Benefits
- They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
- They retain their magnetic properties even under close interference source,
- Thanks to the reflective finish, the surface of Ni-Cu-Ni, gold, or silver gives an modern appearance,
- Magnets are distinguished by impressive magnetic induction on the active area,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- In view of the option of accurate shaping and adaptation to specialized requirements, NdFeB magnets can be produced in a variety of shapes and sizes, which increases their versatility,
- Versatile presence in electronics industry – they serve a role in computer drives, electric motors, diagnostic systems, also multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also increases its resistance to damage
- Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Due to limitations in producing threads and complicated forms in magnets, we propose using cover - magnetic mechanism.
- Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Lifting parameters
Maximum lifting capacity of the magnet – what it depends on?
- on a base made of structural steel, perfectly concentrating the magnetic field
- with a cross-section no less than 10 mm
- with an polished touching surface
- with total lack of distance (without paint)
- for force applied at a right angle (in the magnet axis)
- in neutral thermal conditions
Lifting capacity in real conditions – factors
- Distance (between the magnet and the plate), since even a microscopic distance (e.g. 0.5 mm) leads to a reduction in force by up to 50% (this also applies to paint, rust or dirt).
- Load vector – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Material composition – not every steel reacts the same. Alloy additives worsen the attraction effect.
- Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
- Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.
Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a slight gap between the magnet and the plate lowers the lifting capacity.
Precautions when working with neodymium magnets
Heat warning
Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.
Safe distance
Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).
Bone fractures
Pinching hazard: The attraction force is so great that it can result in blood blisters, crushing, and broken bones. Use thick gloves.
Impact on smartphones
GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
No play value
Always keep magnets out of reach of children. Risk of swallowing is high, and the consequences of magnets connecting inside the body are life-threatening.
Safe operation
Handle magnets with awareness. Their immense force can shock even experienced users. Stay alert and respect their power.
Nickel allergy
Medical facts indicate that nickel (the usual finish) is a strong allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and choose versions in plastic housing.
Risk of cracking
NdFeB magnets are ceramic materials, which means they are prone to chipping. Collision of two magnets leads to them shattering into shards.
Pacemakers
Individuals with a heart stimulator have to maintain an absolute distance from magnets. The magnetism can disrupt the operation of the life-saving device.
Dust explosion hazard
Dust created during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
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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