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SM 32x125 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130352
GTIN/EAN: 5906301813002
Diameter Ø
32 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
670 g
Magnetic Flux
~ 8 000 Gauss [±5%]
381.30 ZŁ with VAT / pcs + price for transport
310.00 ZŁ net + 23% VAT / pcs
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Detailed specification - SM 32x125 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x125 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130352 |
| GTIN/EAN | 5906301813002 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 670 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 4 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 32x125 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~764 | g |
| Active area | 89 | 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 (3 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% |
Environmental data
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other offers
Advantages and disadvantages of neodymium magnets.
Benefits
- They retain attractive force for almost ten years – the loss is just ~1% (according to analyses),
- They retain their magnetic properties even under strong external field,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
- In view of the ability of free forming and customization to individualized requirements, neodymium magnets can be manufactured in a wide range of shapes and sizes, which expands the range of possible applications,
- Key role in electronics industry – they are used in HDD drives, brushless drives, medical devices, as well as complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in miniature devices
Disadvantages
- At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
- Neodymium magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
- They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- We recommend cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated forms.
- Potential hazard to health – tiny shards of magnets can be dangerous, in case of ingestion, which is particularly important in the context of child health protection. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical when they are in the body.
- Due to neodymium price, their price is relatively high,
Pull force analysis
Breakaway strength of the magnet in ideal conditions – what contributes to it?
- using a plate made of low-carbon steel, acting as a magnetic yoke
- with a cross-section no less than 10 mm
- characterized by even structure
- under conditions of no distance (surface-to-surface)
- for force acting at a right angle (pull-off, not shear)
- at ambient temperature room level
Impact of factors on magnetic holding capacity in practice
- Clearance – existence of any layer (rust, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
- Loading method – catalog parameter refers to pulling vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
- Plate material – low-carbon steel attracts best. Alloy steels lower magnetic properties and holding force.
- Plate texture – ground elements ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.
Safe handling of neodymium magnets
Finger safety
Risk of injury: The pulling power is so great that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.
Caution required
Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.
GPS Danger
A strong magnetic field disrupts the operation of magnetometers in phones and navigation systems. Do not bring magnets near a smartphone to avoid breaking the sensors.
Protect data
Do not bring magnets near a wallet, computer, or TV. The magnetism can destroy these devices and wipe information from cards.
Metal Allergy
A percentage of the population suffer from a contact allergy to nickel, which is the standard coating for NdFeB magnets. Frequent touching might lead to skin redness. We suggest use safety gloves.
Combustion hazard
Drilling and cutting of neodymium magnets carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.
Material brittleness
Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.
Swallowing risk
NdFeB magnets are not suitable for play. Accidental ingestion of multiple magnets can lead to them attracting across intestines, which poses a severe health hazard and requires immediate surgery.
Heat warning
Avoid heat. Neodymium magnets are susceptible to heat. If you need operation above 80°C, look for HT versions (H, SH, UH).
Medical interference
Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.
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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