SM 32x500 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130374
GTIN/EAN: 5906301813224
Diameter Ø
32 mm [±1 mm]
Height
500 mm [±1 mm]
Weight
2670 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1488.30 ZŁ with VAT / pcs + price for transport
1210.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Technical - SM 32x500 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x500 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130374 |
| GTIN/EAN | 5906301813224 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 500 mm [±1 mm] |
| Weight | 2670 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 19 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 32x500 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 500 | mm (L) |
| Active length | 464 | mm |
| Section count | 20 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~3056 | g |
| Active area | 466 | 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 (20 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
Pros as well as cons of rare earth magnets.
Pros
- They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (based on calculations),
- They are resistant to demagnetization induced by external magnetic fields,
- The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
- Magnets exhibit huge magnetic induction on the outer side,
- Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
- Possibility of custom shaping as well as adjusting to concrete conditions,
- Universal use in innovative solutions – they are used in hard drives, motor assemblies, advanced medical instruments, as well as other advanced devices.
- Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Limitations
- 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 increases its resistance to damage
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
- Limited possibility of creating nuts in the magnet and complex forms - recommended is casing - mounting mechanism.
- Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that small components of these products are able to complicate diagnosis medical in case of swallowing.
- Due to expensive raw materials, their price is higher than average,
Holding force characteristics
Maximum holding power of the magnet – what contributes to it?
- with the application of a sheet made of special test steel, ensuring maximum field concentration
- with a thickness of at least 10 mm
- with a plane free of scratches
- under conditions of gap-free contact (metal-to-metal)
- during detachment in a direction perpendicular to the plane
- at standard ambient temperature
Lifting capacity in practice – influencing factors
- Clearance – existence of any layer (rust, tape, air) acts as an insulator, which reduces capacity 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 drastically, often to levels of 20-30% of the maximum value.
- Base massiveness – too thin sheet does not close the flux, causing part of the power to be wasted to the other side.
- Material type – ideal substrate is pure iron steel. Hardened steels may generate lower lifting capacity.
- Smoothness – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
- Temperature influence – high temperature weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate reduces the lifting capacity.
H&S for magnets
Cards and drives
Powerful magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Stay away of at least 10 cm.
Skin irritation risks
Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If redness occurs, immediately stop handling magnets and use protective gear.
Precision electronics
GPS units and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can ruin the sensors in your phone.
Magnets are brittle
Neodymium magnets are sintered ceramics, which means they are fragile like glass. Impact of two magnets leads to them cracking into shards.
Immense force
Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.
Heat sensitivity
Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).
Keep away from children
Adult use only. Tiny parts can be swallowed, leading to intestinal necrosis. Keep out of reach of children and animals.
Serious injuries
Large magnets can break fingers in a fraction of a second. Never put your hand between two strong magnets.
Combustion hazard
Mechanical processing of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Warning for heart patients
Warning for patients: Powerful magnets affect electronics. Maintain at least 30 cm distance or ask another person to handle the magnets.
