SM 32x425 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130464
GTIN/EAN: 5906301813354
Diameter Ø
32 mm [±1 mm]
Height
425 mm [±1 mm]
Weight
2353 g
Magnetic Flux
~ 10 000 Gauss [±5%]
1463.70 ZŁ with VAT / pcs + price for transport
1190.00 ZŁ net + 23% VAT / pcs
1090.00 ZŁ net was the lowest price in the last 30 days
bulk discounts:
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Technical details - SM 32x425 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x425 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130464 |
| GTIN/EAN | 5906301813354 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 425 mm [±1 mm] |
| Weight | 2353 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 16 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 32x425 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 425 | mm (L) |
| Active length | 389 | mm |
| Section count | 16 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2598 | g |
| Active area | 391 | 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 (16 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Strengths as well as weaknesses of rare earth magnets.
Advantages
- They do not lose power, even over approximately 10 years – the decrease in power is only ~1% (according to tests),
- They possess excellent resistance to magnetism drop when exposed to external fields,
- The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnets have excellent magnetic induction on the surface,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
- Thanks to freedom in constructing and the ability to modify to client solutions,
- Wide application in innovative solutions – they are commonly used in computer drives, electric drive systems, medical equipment, as well as modern systems.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages
- To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in force. 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 suggest using waterproof magnets e.g. in rubber, plastic
- We suggest a housing - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
- Health risk to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which is particularly important in the context of child safety. Furthermore, 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 is a challenge,
Lifting parameters
Detachment force of the magnet in optimal conditions – what it depends on?
- using a base made of mild steel, serving as a magnetic yoke
- with a thickness minimum 10 mm
- characterized by smoothness
- with zero gap (without coatings)
- under axial force vector (90-degree angle)
- at standard ambient temperature
Impact of factors on magnetic holding capacity in practice
- Gap between surfaces – every millimeter of separation (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Steel type – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
- Surface condition – ground elements guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
- Thermal factor – hot environment weakens magnetic field. Too high temperature can permanently demagnetize the magnet.
Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the load capacity is reduced by as much as fivefold. Moreover, even a small distance between the magnet and the plate lowers the load capacity.
Precautions when working with NdFeB magnets
Pacemakers
People with a heart stimulator should keep an large gap from magnets. The magnetic field can stop the functioning of the implant.
GPS Danger
Note: neodymium magnets produce a field that confuses sensitive sensors. Keep a separation from your mobile, device, and GPS.
Fragile material
Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.
Dust explosion hazard
Dust generated during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.
Respect the power
Before use, check safety instructions. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
No play value
NdFeB magnets are not toys. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which poses a severe health hazard and requires urgent medical intervention.
Sensitization to coating
It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, refrain from direct skin contact and opt for encased magnets.
Keep away from computers
Powerful magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of at least 10 cm.
Physical harm
Danger of trauma: The pulling power is so immense that it can result in blood blisters, pinching, and broken bones. Use thick gloves.
Thermal limits
Watch the temperature. Exposing the magnet to high heat will destroy its magnetic structure and strength.
