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SM 32x400 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130302
GTIN/EAN: 5906301812951
Diameter Ø
32 mm [±1 mm]
Height
400 mm [±1 mm]
Weight
2145 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1193.10 ZŁ with VAT / pcs + price for transport
970.00 ZŁ net + 23% VAT / pcs
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Technical details - SM 32x400 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x400 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130302 |
| GTIN/EAN | 5906301812951 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 400 mm [±1 mm] |
| Weight | 2145 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 15 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 32x400 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 400 | mm (L) |
| Active length | 364 | mm |
| Section count | 15 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2445 | g |
| Active area | 366 | 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 (15 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
Strengths and weaknesses of Nd2Fe14B magnets.
Strengths
- They retain attractive force for nearly 10 years – the loss is just ~1% (in theory),
- They feature excellent resistance to weakening of magnetic properties when exposed to external magnetic sources,
- A magnet with a smooth gold surface has better aesthetics,
- Neodymium magnets generate maximum magnetic induction on a their surface, which increases force concentration,
- Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
- Thanks to modularity in shaping and the capacity to modify to complex applications,
- Versatile presence in high-tech industry – they are utilized in HDD drives, brushless drives, medical equipment, as well as modern systems.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in small systems
Disadvantages
- To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
- Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
- They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Limited ability of creating threads in the magnet and complex forms - preferred is casing - magnetic holder.
- Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the context of child health protection. Additionally, tiny parts of these products are able to be problematic in diagnostics medical in case of swallowing.
- 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 affects it?
- on a plate made of mild steel, perfectly concentrating the magnetic field
- with a cross-section minimum 10 mm
- with an ideally smooth touching surface
- under conditions of no distance (metal-to-metal)
- during detachment in a direction vertical to the mounting surface
- at ambient temperature room level
Key elements affecting lifting force
- Gap between surfaces – every millimeter of distance (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
- Direction of force – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
- Metal type – different alloys attracts identically. Alloy additives worsen the interaction with the magnet.
- Smoothness – full contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
- Thermal environment – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.
Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the lifting capacity is smaller. Moreover, even a small distance between the magnet’s surface and the plate decreases the load capacity.
H&S for magnets
Maximum temperature
Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. Damage is permanent.
Safe distance
Do not bring magnets near a purse, computer, or screen. The magnetism can destroy these devices and erase data from cards.
Threat to navigation
A strong magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.
Magnets are brittle
Protect your eyes. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Wear goggles.
Sensitization to coating
Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, cease working with magnets and use protective gear.
Product not for children
Absolutely store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are life-threatening.
Flammability
Machining of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Warning for heart patients
Patients with a pacemaker have to maintain an large gap from magnets. The magnetism can interfere with the operation of the implant.
Safe operation
Handle with care. Rare earth magnets act from a distance and connect with huge force, often faster than you can react.
Pinching danger
Large magnets can crush fingers in a fraction of a second. Do not put your hand between two attracting surfaces.
Tabela kosztu i czasu dostawy
Płatność przed wysyłką:
GLS kurier
Przesyłka będzie u Ciebie za 2-3 dni
14.99 ZŁ
InPost Paczkomaty 24/7
Przesyłka będzie u Ciebie za 1-2 dni
12.30 ZŁ
Płatność przy odbiorze (pobranie):
GLS kurier
Przesyłka będzie u Ciebie za 1-2 dni
23.00 ZŁ
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