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SM 25x300 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130373
GTIN/EAN: 5906301813217
- Diameter Ø
- 25 mm [±1 mm]
- Height
- 300 mm [±1 mm]
- Weight
- 1160 g
- Magnetic Flux
- ~ 8 500 Gauss [±5%]
910.20 zł with VAT / pcs + price for transport
740.00 zł net + 23% VAT / pcs
bulk discounts:
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Technical details - SM 25x300 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x300 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130373 |
| GTIN/EAN | 5906301813217 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 1160 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 11 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 25x300 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 300 | mm (L) |
| Active length | 264 | mm |
| Section count | 11 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1119 | g |
| Active area | 207 | 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 (11 sections)
Chart 3: Temperature performance
Elemental analysis
| 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 |
Other products
Pros as well as cons of Nd2Fe14B magnets.
Strengths
- Their magnetic field is maintained, and after around 10 years it drops only by ~1% (according to research),
- Magnets perfectly protect themselves against loss of magnetization caused by external fields,
- In other words, due to the metallic finish of nickel, the element gains visual value,
- Magnetic induction on the surface of the magnet turns out to be extremely intense,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- In view of the option of accurate forming and adaptation to custom solutions, magnetic components can be manufactured in a wide range of forms and dimensions, which increases their versatility,
- Versatile presence in advanced technology sectors – they are used in magnetic memories, motor assemblies, medical equipment, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in miniature devices
Cons
- Susceptibility to cracking 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 increases their durability
- Neodymium magnets decrease their strength 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 stability even at temperatures up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We recommend cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complicated forms.
- Potential hazard related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, tiny parts of these magnets are able to complicate diagnosis medical after entering the body.
- With budget limitations the cost of neodymium magnets can be a barrier,
Holding force characteristics
Magnetic strength at its maximum – what affects it?
- on a base made of structural steel, effectively closing the magnetic field
- whose transverse dimension reaches at least 10 mm
- with an polished contact surface
- with direct contact (without paint)
- for force applied at a right angle (in the magnet axis)
- at temperature room level
Practical lifting capacity: influencing factors
- Distance (betwixt the magnet and the metal), as even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, rust or debris).
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds much less (often approx. 20-30% of maximum force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Material type – the best choice is high-permeability steel. Stainless steels may attract less.
- Surface structure – the more even the plate, the larger the contact zone and stronger the hold. Unevenness acts like micro-gaps.
- 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).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate lowers the load capacity.
Safe handling of NdFeB magnets
No play value
Absolutely keep magnets away from children. Ingestion danger is significant, and the effects of magnets connecting inside the body are tragic.
Power loss in heat
Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.
Safe distance
Do not bring magnets near a purse, computer, or TV. The magnetism can destroy these devices and erase data from cards.
Magnets are brittle
Watch out for shards. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.
Sensitization to coating
Some people experience a sensitization to nickel, which is the common plating for neodymium magnets. Prolonged contact might lead to dermatitis. We suggest use protective gloves.
Medical implants
Patients with a pacemaker should maintain an large gap from magnets. The magnetic field can disrupt the operation of the life-saving device.
Do not underestimate power
Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.
Crushing risk
Mind your fingers. Two large magnets will snap together immediately with a force of massive weight, crushing anything in their path. Exercise extreme caution!
Do not drill into magnets
Drilling and cutting of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Phone sensors
A strong magnetic field interferes with the operation of magnetometers in phones and navigation systems. Maintain magnets near a device to avoid damaging the sensors.
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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