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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
bulk discounts:
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Technical details - 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) | 17.3 | kg (theor.) |
| Induction (surface) | ~6 500 | Gauss (Max) |
Chart 2: Field profile (3 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% |
Sustainability
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
Other proposals
![SM 18x200 [2xM5] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-18x200-2xm5-gig.jpg "SM 18x200 [2xM5] / N42 - magnetic separator")
Pros and cons of Nd2Fe14B magnets.
Pros
- They retain magnetic properties for nearly 10 years – the drop is just ~1% (in theory),
- They have excellent resistance to magnetism drop when exposed to opposing magnetic fields,
- By using a decorative coating of gold, the element acquires an professional look,
- Magnetic induction on the working part of the magnet is maximum,
- 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...
- In view of the option of precise molding and adaptation to unique projects, magnetic components can be produced in a wide range of geometric configurations, which increases their versatility,
- Key role in high-tech industry – they find application in HDD drives, drive modules, medical equipment, as well as other advanced devices.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which allows their use in small systems
Weaknesses
- At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
- When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
- We suggest casing - magnetic mount, due to difficulties in realizing threads inside the magnet and complicated forms.
- Health risk resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. Additionally, small elements of these products can disrupt the diagnostic process medical in case of swallowing.
- Due to neodymium price, their price is higher than average,
Pull force analysis
Maximum lifting capacity of the magnet – what it depends on?
- using a base made of high-permeability steel, acting as a ideal flux conductor
- whose thickness is min. 10 mm
- characterized by lack of roughness
- without any insulating layer between the magnet and steel
- during detachment in a direction vertical to the mounting surface
- at ambient temperature approx. 20 degrees Celsius
Lifting capacity in real conditions – factors
- Distance – existence of any layer (paint, tape, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
- Load vector – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the surface is typically many times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – insufficiently thick steel does not close the flux, causing part of the flux to be wasted into the air.
- Chemical composition of the base – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
- Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
- Thermal factor – high temperature reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.
Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.
Safe handling of NdFeB magnets
Medical interference
Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Keep away from computers
Do not bring magnets near a purse, computer, or screen. The magnetic field can irreversibly ruin these devices and erase data from cards.
Impact on smartphones
A powerful magnetic field disrupts the functioning of compasses in phones and navigation systems. Keep magnets close to a smartphone to prevent damaging the sensors.
Avoid contact if allergic
A percentage of the population experience a sensitization to nickel, which is the common plating for NdFeB magnets. Frequent touching can result in skin redness. We strongly advise wear safety gloves.
Pinching danger
Big blocks can smash fingers in a fraction of a second. Under no circumstances place your hand between two strong magnets.
Risk of cracking
Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Eye protection is mandatory.
Do not drill into magnets
Mechanical processing of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Powerful field
Handle magnets with awareness. Their huge power can surprise even experienced users. Plan your moves and respect their force.
Adults only
Product intended for adults. Small elements pose a choking risk, leading to intestinal necrosis. Keep away from children and animals.
Thermal limits
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.
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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