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SM 18x100 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130269
GTIN/EAN: 5906301812715
Diameter Ø
18 mm [±1 mm]
Height
100 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
221.40 ZŁ with VAT / pcs + price for transport
180.00 ZŁ net + 23% VAT / pcs
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Parameters as well as structure of neodymium magnets can be tested on our
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Technical details - SM 18x100 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x100 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130269 |
| GTIN/EAN | 5906301812715 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 100 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 - 5 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 18x100 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 100 | mm (L) |
| Active length | 64 | mm |
| Section count | 2 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~193 | g |
| Active area | 36 | 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 (2 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% |
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.
Advantages
- They do not lose strength, even after approximately ten years – the drop in power is only ~1% (theoretically),
- Neodymium magnets remain remarkably resistant to magnetic field loss caused by magnetic disturbances,
- The use of an aesthetic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
- They show high magnetic induction at the operating surface, making them more effective,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
- Possibility of exact creating and adjusting to atypical needs,
- Fundamental importance in high-tech industry – they are used in computer drives, brushless drives, diagnostic systems, and complex engineering applications.
- Thanks to their power density, small magnets offer high operating force, occupying minimum space,
Disadvantages
- They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
- 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 and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Due to limitations in creating threads and complicated shapes in magnets, we recommend using cover - magnetic mount.
- Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child safety. Additionally, tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
- Due to neodymium price, their price exceeds standard values,
Pull force analysis
Highest magnetic holding force – what it depends on?
- with the contact of a yoke made of special test steel, guaranteeing maximum field concentration
- whose transverse dimension equals approx. 10 mm
- with an polished touching surface
- with zero gap (without impurities)
- for force applied at a right angle (in the magnet axis)
- at room temperature
Practical lifting capacity: influencing factors
- Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
- Load vector – maximum parameter is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is standardly many times lower (approx. 1/5 of the lifting capacity).
- Steel thickness – too thin plate causes magnetic saturation, causing part of the power to be wasted into the air.
- Chemical composition of the base – mild steel attracts best. Higher carbon content reduce magnetic properties and holding force.
- Surface finish – full contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.
Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate decreases the lifting capacity.
Safety rules for work with neodymium magnets
Magnetic media
Very strong magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.
This is not a toy
Neodymium magnets are not suitable for play. Swallowing a few magnets may result in them attracting across intestines, which constitutes a direct threat to life and necessitates immediate surgery.
Nickel allergy
Certain individuals experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact can result in a rash. We strongly advise wear safety gloves.
Physical harm
Pinching hazard: The pulling power is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.
GPS and phone interference
Be aware: neodymium magnets generate a field that disrupts sensitive sensors. Maintain a separation from your phone, tablet, and GPS.
Magnets are brittle
Neodymium magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets leads to them cracking into shards.
Life threat
Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Heat sensitivity
Do not overheat. NdFeB magnets are sensitive to temperature. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).
Safe operation
Exercise caution. Rare earth magnets attract from a long distance and connect with massive power, often quicker than you can react.
Machining danger
Machining of NdFeB material carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.
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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