SMZR 32x250 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140469
GTIN/EAN: 5906301813538
Diameter Ø
32 mm [±1 mm]
Height
250 mm [±1 mm]
Weight
1490 g
Magnetic Flux
~ 10 000 Gauss [±5%]
738.00 ZŁ with VAT / pcs + price for transport
600.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical parameters - SMZR 32x250 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 32x250 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140469 |
| GTIN/EAN | 5906301813538 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 250 mm [±1 mm] |
| Weight | 1490 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 8 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
SMZR 32x250 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 250 | mm (L) |
| Active length | 230 | mm |
| Section count | 10 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~1528 | g |
| Active area | 231 | 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
Pros and cons of Nd2Fe14B magnets.
Strengths
- They retain full power for almost ten years – the loss is just ~1% (in theory),
- Magnets very well resist against demagnetization caused by foreign field sources,
- By using a decorative layer of gold, the element presents an elegant look,
- The surface of neodymium magnets generates a intense magnetic field – this is a key feature,
- Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures approaching 230°C and above...
- Possibility of individual forming and optimizing to precise needs,
- Versatile presence in high-tech industry – they find application in data components, drive modules, advanced medical instruments, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which enables their usage in miniature devices
Weaknesses
- They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
- Neodymium magnets decrease their power 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 durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of producing threads in the magnet and complex forms - preferred is casing - magnetic holder.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child health protection. It is also worth noting that small elements of these devices can disrupt the diagnostic process medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum magnetic pulling force – what contributes to it?
- using a base made of low-carbon steel, acting as a circuit closing element
- possessing a thickness of min. 10 mm to avoid saturation
- with a plane cleaned and smooth
- without the slightest insulating layer between the magnet and steel
- during pulling in a direction vertical to the mounting surface
- in neutral thermal conditions
Magnet lifting force in use – key factors
- Clearance – existence of foreign body (rust, tape, air) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Plate thickness – too thin sheet causes magnetic saturation, causing part of the flux to be escaped into the air.
- Steel grade – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
- Surface condition – smooth surfaces ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).
Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
Warnings
Fragile material
Neodymium magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets leads to them shattering into shards.
Power loss in heat
Watch the temperature. Heating the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Safe operation
Handle with care. Rare earth magnets attract from a distance and snap with massive power, often faster than you can move away.
Crushing force
Watch your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!
Compass and GPS
GPS units and smartphones are highly susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.
Threat to electronics
Device Safety: Strong magnets can damage data carriers and sensitive devices (heart implants, hearing aids, timepieces).
Dust is flammable
Drilling and cutting of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.
Health Danger
For implant holders: Powerful magnets affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.
Skin irritation risks
Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If an allergic reaction appears, cease handling magnets and use protective gear.
Swallowing risk
Adult use only. Tiny parts pose a choking risk, leading to intestinal necrosis. Keep out of reach of children and animals.
