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SM 25x400 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130365
GTIN/EAN: 5906301813392
Diameter Ø
25 mm [±1 mm]
Height
400 mm [±1 mm]
Weight
1560 g
Magnetic Flux
~ 6 500 Gauss [±5%]
1131.60 ZŁ with VAT / pcs + price for transport
920.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical of the product - SM 25x400 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 25x400 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130365 |
| GTIN/EAN | 5906301813392 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 400 mm [±1 mm] |
| Weight | 1560 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 6 500 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 15 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 25x400 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 400 | mm (L) |
| Active length | 364 | mm |
| Section count | 15 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1492 | g |
| Active area | 286 | 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 (15 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 |
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Strengths as well as weaknesses of neodymium magnets.
Strengths
- They retain full power for almost ten years – the loss is just ~1% (in theory),
- Magnets effectively protect themselves against loss of magnetization caused by foreign field sources,
- A magnet with a metallic gold surface has an effective appearance,
- The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Due to the possibility of accurate molding and adaptation to unique projects, NdFeB magnets can be produced in a wide range of shapes and sizes, which makes them more universal,
- Huge importance in innovative solutions – they serve a role in magnetic memories, electric motors, medical equipment, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in compact constructions
Weaknesses
- At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience 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
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
- We suggest casing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex forms.
- Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which gains importance in the context of child health protection. Additionally, small components of these devices can complicate diagnosis medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Lifting parameters
Maximum magnetic pulling force – what affects it?
- on a block made of mild steel, optimally conducting the magnetic flux
- possessing a massiveness of at least 10 mm to ensure full flux closure
- characterized by even structure
- with zero gap (no coatings)
- for force applied at a right angle (in the magnet axis)
- in stable room temperature
Magnet lifting force in use – key factors
- Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) diminishes the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is reached only during pulling at a 90° angle. The force required to slide of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Steel grade – ideal substrate is pure iron steel. Cast iron may generate lower lifting capacity.
- Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate decreases the holding force.
Warnings
Crushing force
Risk of injury: The pulling power is so great that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.
Allergic reactions
A percentage of the population have a hypersensitivity to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to dermatitis. We recommend use protective gloves.
Caution required
Use magnets with awareness. Their immense force can surprise even professionals. Stay alert and do not underestimate their power.
Medical implants
Warning for patients: Powerful magnets affect electronics. Maintain at least 30 cm distance or request help to handle the magnets.
Mechanical processing
Dust generated during machining of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.
Risk of cracking
Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.
Electronic hazard
Intense magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
GPS and phone interference
GPS units and mobile phones are highly sensitive to magnetic fields. Close proximity with a strong magnet can permanently damage the sensors in your phone.
Keep away from children
These products are not toys. Accidental ingestion of multiple magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and necessitates urgent medical intervention.
Operating temperature
Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. The loss of strength is permanent.
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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