SM 32x200 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130298
GTIN/EAN: 5906301812913
Diameter Ø
32 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
1070 g
Magnetic Flux
~ 8 000 Gauss [±5%]
725.70 ZŁ with VAT / pcs + price for transport
590.00 ZŁ net + 23% VAT / pcs
490.00 ZŁ net was the lowest price in the last 30 days
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Physical properties - SM 32x200 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x200 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130298 |
| GTIN/EAN | 5906301812913 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 200 mm [±1 mm] |
| Weight | 1070 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 7 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 32x200 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 200 | mm (L) |
| Active length | 164 | mm |
| Section count | 7 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1222 | g |
| Active area | 165 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (7 sections)
Chart 3: Temperature performance
Elemental analysis
| 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other deals
Advantages as well as disadvantages of neodymium magnets.
Strengths
- They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (according to literature),
- Magnets very well defend themselves against demagnetization caused by external fields,
- A magnet with a shiny nickel surface looks better,
- They show high magnetic induction at the operating surface, which increases their power,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to flexibility in designing and the ability to customize to individual projects,
- Fundamental importance in electronics industry – they find application in hard drives, brushless drives, medical equipment, and industrial machines.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Cons
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
- 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 stability even at temperatures up to 230°C
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Limited possibility of producing nuts in the magnet and complex shapes - preferred is cover - magnetic holder.
- Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that 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
Maximum holding power of the magnet – what it depends on?
- on a plate made of mild steel, optimally conducting the magnetic field
- with a cross-section of at least 10 mm
- characterized by lack of roughness
- without the slightest insulating layer between the magnet and steel
- during detachment in a direction vertical to the mounting surface
- at temperature room level
Practical lifting capacity: influencing factors
- Clearance – existence of any layer (paint, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick steel causes magnetic saturation, causing part of the power to be lost to the other side.
- Material composition – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
- Thermal environment – temperature increase results in weakening of force. Check the thermal limit for a given model.
Lifting capacity testing was carried out on a smooth plate of optimal thickness, under perpendicular forces, in contrast under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate lowers the holding force.
Warnings
Conscious usage
Use magnets consciously. Their huge power can shock even professionals. Be vigilant and do not underestimate their force.
Threat to navigation
Note: rare earth magnets generate a field that disrupts precision electronics. Keep a safe distance from your mobile, device, and navigation systems.
Fire warning
Dust produced during grinding of magnets is flammable. Avoid drilling into magnets unless you are an expert.
Maximum temperature
Watch the temperature. Exposing the magnet above 80 degrees Celsius will permanently weaken its magnetic structure and strength.
Shattering risk
NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Collision of two magnets leads to them cracking into shards.
Magnetic media
Intense magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.
No play value
Always keep magnets away from children. Choking hazard is significant, and the consequences of magnets connecting inside the body are very dangerous.
Allergy Warning
Certain individuals have a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Prolonged contact may cause dermatitis. We suggest use safety gloves.
Medical implants
Patients with a ICD must maintain an large gap from magnets. The magnetism can disrupt the functioning of the implant.
Pinching danger
Big blocks can smash fingers instantly. Never place your hand betwixt two attracting surfaces.
