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SM 32x300 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130300
GTIN/EAN: 5906301812937
Diameter Ø
32 mm [±1 mm]
Height
300 mm [±1 mm]
Weight
1610 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1020.90 ZŁ with VAT / pcs + price for transport
830.00 ZŁ net + 23% VAT / pcs
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Product card - SM 32x300 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x300 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130300 |
| GTIN/EAN | 5906301812937 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 300 mm [±1 mm] |
| Weight | 1610 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 11 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 32x300 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 300 | mm (L) |
| Active length | 264 | mm |
| Section count | 11 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1834 | g |
| Active area | 265 | 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 (11 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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
See also proposals
![UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread](https://cdn3.dhit.pl/graphics/products/umgw-60x30x15-m10-gw-cug.jpg "UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread")
Pros and cons of rare earth magnets.
Benefits
- They have stable power, and over around 10 years their attraction force decreases symbolically – ~1% (in testing),
- Magnets effectively defend themselves against loss of magnetization caused by external fields,
- A magnet with a smooth nickel surface has better aesthetics,
- Magnetic induction on the working part of the magnet turns out to be maximum,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of individual machining and adjusting to concrete needs,
- Versatile presence in electronics industry – they find application in computer drives, electric motors, medical equipment, as well as technologically advanced constructions.
- Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,
Cons
- At very strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
- Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- Limited ability of making threads in the magnet and complex shapes - preferred is casing - magnetic holder.
- Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these devices can complicate diagnosis medical in case of swallowing.
- High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Lifting parameters
Maximum lifting force for a neodymium magnet – what it depends on?
- on a plate made of structural steel, optimally conducting the magnetic flux
- with a cross-section no less than 10 mm
- with an ideally smooth contact surface
- with zero gap (without coatings)
- under vertical application of breakaway force (90-degree angle)
- at temperature approx. 20 degrees Celsius
Practical aspects of lifting capacity – factors
- Space between magnet and steel – every millimeter of distance (caused e.g. by veneer or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
- Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- Plate thickness – insufficiently thick plate causes magnetic saturation, causing part of the flux to be escaped to the other side.
- Metal type – not every steel reacts the same. Alloy additives worsen the attraction effect.
- Surface finish – ideal contact is obtained only on smooth steel. Rough texture create air cushions, weakening the magnet.
- Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a minimal clearance between the magnet and the plate decreases the holding force.
H&S for magnets
Heat sensitivity
Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
Handling rules
Before starting, read the rules. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.
Medical implants
Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.
Swallowing risk
Always store magnets away from children. Risk of swallowing is significant, and the consequences of magnets clamping inside the body are life-threatening.
Dust is flammable
Dust produced during grinding of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Cards and drives
Equipment safety: Strong magnets can ruin data carriers and sensitive devices (pacemakers, medical aids, timepieces).
Keep away from electronics
Note: rare earth magnets produce a field that confuses precision electronics. Keep a separation from your mobile, tablet, and navigation systems.
Eye protection
Beware of splinters. Magnets can explode upon uncontrolled impact, launching shards into the air. Wear goggles.
Avoid contact if allergic
Medical facts indicate that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, refrain from touching magnets with bare hands and choose versions in plastic housing.
Hand protection
Large magnets can crush fingers instantly. Under no circumstances place 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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