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%]
1020.90 ZŁ with VAT / pcs + price for transport
830.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Detailed specification - 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
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
Pros and cons of neodymium magnets.
Strengths
- They do not lose magnetism, even over around 10 years – the decrease in strength is only ~1% (according to tests),
- They retain their magnetic properties even under close interference source,
- The use of an shiny finish of noble metals (nickel, gold, silver) causes the element to present itself better,
- They feature high magnetic induction at the operating surface, making them more effective,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
- Thanks to the ability of accurate molding and adaptation to specialized requirements, neodymium magnets can be created in a wide range of shapes and sizes, which expands the range of possible applications,
- Huge importance in innovative solutions – they are commonly used in magnetic memories, motor assemblies, medical equipment, and industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Disadvantages
- At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their strength 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
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
- Limited possibility of producing threads in the magnet and complex shapes - recommended is a housing - mounting mechanism.
- Possible danger to health – tiny shards of magnets can be dangerous, if swallowed, which is particularly important in the context of child safety. Furthermore, small elements of these devices are able to be problematic in diagnostics medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities
Lifting parameters
Highest magnetic holding force – what affects it?
- using a base made of low-carbon steel, serving as a circuit closing element
- possessing a massiveness of at least 10 mm to avoid saturation
- with a plane cleaned and smooth
- under conditions of no distance (surface-to-surface)
- during detachment in a direction vertical to the mounting surface
- at standard ambient temperature
Practical aspects of lifting capacity – factors
- Distance (betwixt the magnet and the metal), because even a tiny distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
- Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, 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.
- Material type – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
- Surface finish – full contact is possible only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
- Thermal environment – temperature increase results in weakening of induction. Check the maximum operating temperature for a given model.
Lifting capacity testing was performed on a smooth plate of optimal thickness, under a perpendicular pulling force, whereas under parallel forces the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
H&S for magnets
Life threat
Patients with a heart stimulator should maintain an absolute distance from magnets. The magnetic field can disrupt the functioning of the implant.
Magnets are brittle
Neodymium magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets leads to them shattering into small pieces.
Flammability
Powder generated during cutting of magnets is flammable. Avoid drilling into magnets without proper cooling and knowledge.
Crushing risk
Mind your fingers. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Exercise extreme caution!
Allergic reactions
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If redness occurs, immediately stop working with magnets and wear gloves.
GPS Danger
A strong magnetic field negatively affects the functioning of compasses in smartphones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.
Safe operation
Be careful. Neodymium magnets attract from a distance and snap with huge force, often quicker than you can move away.
Keep away from computers
Data protection: Neodymium magnets can ruin data carriers and delicate electronics (pacemakers, hearing aids, mechanical watches).
Demagnetization risk
Regular neodymium magnets (grade N) lose power when the temperature surpasses 80°C. This process is irreversible.
This is not a toy
Product intended for adults. Tiny parts can be swallowed, causing intestinal necrosis. Keep away from kids and pets.
