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SM 18x150 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130271
GTIN/EAN: 5906301812739
- Diameter Ø
- 18 mm [±1 mm]
- Height
- 150 mm [±1 mm]
- Weight
- 0.01 g
- Magnetic Flux
- ~ 5 400 Gauss [±5%]
332.10 zł with VAT / pcs + price for transport
270.00 zł net + 23% VAT / pcs
bulk discounts:
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Detailed specification - SM 18x150 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x150 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130271 |
| GTIN/EAN | 5906301812739 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 150 mm [±1 mm] |
| Weight | 0.01 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 5 400 Gauss [±5%] |
| Size/Mount Quantity | 2xM5 |
| Polarity | circumferential - 7 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 18x150 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 150 | mm (L) |
| Active length | 114 | mm |
| Section count | 4 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~290 | g |
| Active area | 64 | 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) | 3.8 | kg (theor.) |
| Induction (surface) | ~5 400 | Gauss (Max) |
Chart 2: Field profile (4 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 |
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Advantages as well as disadvantages of rare earth magnets.
Advantages
- They retain attractive force for almost ten years – the drop is just ~1% (based on simulations),
- They do not lose their magnetic properties even under external field action,
- Thanks to the shiny finish, the coating of Ni-Cu-Ni, gold, or silver-plated gives an clean appearance,
- Magnetic induction on the working part of the magnet remains exceptional,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Possibility of individual creating and adjusting to defined requirements,
- Significant place in future technologies – they find application in HDD drives, brushless drives, diagnostic systems, also multitasking production systems.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Weaknesses
- Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also raises their durability
- When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
- Limited ability of creating threads in the magnet and complex shapes - recommended is cover - magnet mounting.
- Health risk related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets can be problematic in diagnostics medical in case of swallowing.
- High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities
Holding force characteristics
Magnetic strength at its maximum – what contributes to it?
- using a plate made of low-carbon steel, functioning as a circuit closing element
- possessing a massiveness of at least 10 mm to avoid saturation
- with a plane cleaned and smooth
- with total lack of distance (without paint)
- during pulling in a direction perpendicular to the mounting surface
- in temp. approx. 20°C
Impact of factors on magnetic holding capacity in practice
- Air gap (between the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
- Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of maximum force).
- Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Chemical composition of the base – low-carbon steel attracts best. Alloy steels reduce magnetic permeability and holding force.
- Surface condition – smooth surfaces ensure maximum contact, which improves force. Uneven metal reduce efficiency.
- Temperature – heating the magnet results in weakening of induction. It is worth remembering the thermal limit for a given model.
Lifting capacity was determined by applying a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Safe handling of neodymium magnets
Sensitization to coating
Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If skin irritation happens, cease working with magnets and use protective gear.
Dust explosion hazard
Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this risks ignition.
Pinching danger
Large magnets can break fingers in a fraction of a second. Under no circumstances put your hand between two attracting surfaces.
Magnet fragility
NdFeB magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them cracking into shards.
Electronic devices
Device Safety: Strong magnets can ruin payment cards and sensitive devices (pacemakers, hearing aids, timepieces).
Phone sensors
A strong magnetic field disrupts the functioning of compasses in phones and navigation systems. Do not bring magnets near a device to prevent breaking the sensors.
Immense force
Handle magnets consciously. Their powerful strength can surprise even professionals. Stay alert and respect their force.
Choking Hazard
Always store magnets away from children. Ingestion danger is significant, and the effects of magnets connecting inside the body are fatal.
Demagnetization risk
Standard neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Medical interference
For implant holders: Powerful magnets disrupt electronics. Keep at least 30 cm distance or ask another person to work with the magnets.
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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