SM 32x325 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130460
GTIN/EAN: 5906301813316
Diameter Ø
32 mm [±1 mm]
Height
325 mm [±1 mm]
Weight
1800 g
Magnetic Flux
~ 10 000 Gauss [±5%]
1045.50 ZŁ with VAT / pcs + price for transport
850.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Product card - SM 32x325 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 32x325 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130460 |
| GTIN/EAN | 5906301813316 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 325 mm [±1 mm] |
| Weight | 1800 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 12 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 32x325 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 325 | mm (L) |
| Active length | 289 | mm |
| Section count | 12 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1986 | g |
| Active area | 291 | 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 (12 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% |
Ecology and recycling (GPSR)
| 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.
Strengths
- They do not lose power, even after nearly 10 years – the decrease in power is only ~1% (based on measurements),
- Neodymium magnets are highly resistant to demagnetization caused by external field sources,
- The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- Neodymium magnets deliver maximum magnetic induction on a small area, which ensures high operational effectiveness,
- 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...
- Possibility of accurate creating and optimizing to concrete needs,
- Fundamental importance in high-tech industry – they are utilized in hard drives, electric drive systems, medical equipment, and technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Disadvantages
- 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
- When exposed to high temperature, neodymium magnets experience a drop in strength. 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 immune to moisture, when using outdoors
- Limited possibility of making nuts in the magnet and complicated shapes - recommended is a housing - magnet mounting.
- Health risk to health – tiny shards of magnets can be dangerous, if swallowed, which becomes key in the context of child safety. Additionally, small elements of these magnets can complicate diagnosis medical after entering the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- using a sheet made of high-permeability steel, serving as a ideal flux conductor
- possessing a massiveness of min. 10 mm to avoid saturation
- with an ground contact surface
- with zero gap (without coatings)
- during pulling in a direction perpendicular to the mounting surface
- at ambient temperature approx. 20 degrees Celsius
What influences lifting capacity in practice
- Space between surfaces – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
- Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
- Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures lower magnetic properties and holding force.
- Surface condition – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
- Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was determined by applying a polished steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet and the plate reduces the load capacity.
Precautions when working with NdFeB magnets
Nickel coating and allergies
Medical facts indicate that the nickel plating (the usual finish) is a potent allergen. If you have an allergy, prevent direct skin contact or opt for coated magnets.
Threat to electronics
Powerful magnetic fields can erase data on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.
Compass and GPS
A powerful magnetic field disrupts the functioning of magnetometers in phones and GPS navigation. Do not bring magnets near a device to avoid breaking the sensors.
Hand protection
Risk of injury: The attraction force is so immense that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.
Flammability
Powder created during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
Implant safety
Medical warning: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.
Beware of splinters
Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them shattering into small pieces.
Powerful field
Use magnets consciously. Their huge power can shock even professionals. Plan your moves and respect their power.
Demagnetization risk
Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. Damage is permanent.
Swallowing risk
Product intended for adults. Small elements can be swallowed, leading to serious injuries. Keep away from kids and pets.
