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SM 18x225 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130274
GTIN/EAN: 5906301812760
Diameter Ø
18 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
498.15 ZŁ with VAT / pcs + price for transport
405.00 ZŁ net + 23% VAT / pcs
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Technical - SM 18x225 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x225 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130274 |
| GTIN/EAN | 5906301812760 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 225 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 - 10 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 18x225 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 225 | mm (L) |
| Active length | 189 | mm |
| Section count | 8 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~435 | g |
| Active area | 107 | 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 (8 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 |
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Strengths and weaknesses of Nd2Fe14B magnets.
Benefits
- They retain magnetic properties for around ten years – the drop is just ~1% (according to analyses),
- They are noted for resistance to demagnetization induced by presence of other magnetic fields,
- The use of an refined layer of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
- Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures approaching 230°C and above...
- Possibility of detailed shaping and adjusting to atypical applications,
- Wide application in modern industrial fields – they are utilized in data components, electric motors, medical equipment, as well as technologically advanced constructions.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Disadvantages
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
- When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their power 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 corrode. Therefore during using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
- We suggest cover - magnetic holder, due to difficulties in realizing threads inside the magnet and complex shapes.
- Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
- With mass production the cost of neodymium magnets can be a barrier,
Pull force analysis
Maximum holding power of the magnet – what it depends on?
- using a base made of mild steel, functioning as a magnetic yoke
- possessing a thickness of min. 10 mm to avoid saturation
- with a plane free of scratches
- under conditions of gap-free contact (metal-to-metal)
- under vertical application of breakaway force (90-degree angle)
- at room temperature
Key elements affecting lifting force
- Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
- Angle of force application – maximum parameter is available only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
- Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
- Material type – ideal substrate is high-permeability steel. Hardened steels may attract less.
- Base smoothness – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
- Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).
Lifting capacity was determined with the use of a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under shearing force the holding force is lower. Moreover, even a slight gap between the magnet and the plate reduces the holding force.
Precautions when working with neodymium magnets
ICD Warning
People with a ICD should keep an safe separation from magnets. The magnetic field can disrupt the functioning of the life-saving device.
Dust explosion hazard
Mechanical processing of neodymium magnets poses a fire risk. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
Do not overheat magnets
Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. Damage is permanent.
Keep away from children
NdFeB magnets are not toys. Swallowing multiple magnets may result in them pinching intestinal walls, which constitutes a severe health hazard and requires urgent medical intervention.
Protect data
Avoid bringing magnets near a purse, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.
Magnetic interference
A powerful magnetic field interferes with the operation of compasses in phones and navigation systems. Keep magnets close to a device to avoid breaking the sensors.
Fragile material
Neodymium magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets will cause them shattering into small pieces.
Bodily injuries
Watch your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!
Skin irritation risks
A percentage of the population suffer from a contact allergy to Ni, which is the common plating for NdFeB magnets. Frequent touching can result in skin redness. We suggest wear safety gloves.
Conscious usage
Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.
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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