SM 32x275 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130458
GTIN/EAN: 5906301813293
Diameter Ø
32 mm [±1 mm]
Height
275 mm [±1 mm]
Weight
1520 g
Magnetic Flux
~ 10 000 Gauss [±5%]
897.90 ZŁ with VAT / pcs + price for transport
730.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Lifting power along with form of neodymium magnets can be calculated on our
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Physical properties - SM 32x275 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x275 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130458 |
| GTIN/EAN | 5906301813293 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 275 mm [±1 mm] |
| Weight | 1520 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 10 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 32x275 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 275 | mm (L) |
| Active length | 239 | mm |
| Section count | 10 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1681 | g |
| Active area | 240 | 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) | 41 | kg (theor.) |
| Induction (surface) | ~10 000 | Gauss (Max) |
Chart 2: Field profile (10 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Advantages and disadvantages of Nd2Fe14B magnets.
Strengths
- Their magnetic field is durable, and after around ten years it drops only by ~1% (theoretically),
- Neodymium magnets remain extremely resistant to demagnetization caused by external interference,
- A magnet with a smooth nickel surface has better aesthetics,
- Magnets exhibit very high magnetic induction on the working surface,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- Thanks to freedom in forming and the ability to customize to client solutions,
- Versatile presence in electronics industry – they serve a role in magnetic memories, electromotive mechanisms, diagnostic systems, and complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices
Cons
- They are fragile upon heavy 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
- They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of producing nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
- Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Additionally, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
- With large orders the cost of neodymium magnets can be a barrier,
Lifting parameters
Maximum lifting capacity of the magnet – what it depends on?
- on a block made of structural steel, perfectly concentrating the magnetic flux
- whose transverse dimension reaches at least 10 mm
- with a plane perfectly flat
- with zero gap (no impurities)
- during pulling in a direction perpendicular to the mounting surface
- at room temperature
What influences lifting capacity in practice
- Distance (between the magnet and the metal), because even a microscopic distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or dirt).
- Load vector – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
- Material composition – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
- Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
- Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.
Safety rules for work with NdFeB magnets
Permanent damage
Control the heat. Heating the magnet to high heat will ruin its magnetic structure and pulling force.
Flammability
Powder produced during cutting of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
GPS Danger
Remember: rare earth magnets generate a field that confuses sensitive sensors. Maintain a separation from your phone, device, and navigation systems.
Nickel allergy
A percentage of the population suffer from a contact allergy to Ni, which is the common plating for neodymium magnets. Frequent touching might lead to an allergic reaction. We recommend wear protective gloves.
Protective goggles
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
This is not a toy
Product intended for adults. Tiny parts pose a choking risk, causing severe trauma. Keep away from kids and pets.
Crushing risk
Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, destroying anything in their path. Be careful!
Caution required
Be careful. Rare earth magnets act from a long distance and connect with massive power, often faster than you can move away.
Threat to electronics
Do not bring magnets near a wallet, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.
Health Danger
For implant holders: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.
