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SM 18x125 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130270
GTIN/EAN: 5906301812722
Diameter Ø
18 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
276.75 ZŁ with VAT / pcs + price for transport
225.00 ZŁ net + 23% VAT / pcs
bulk discounts:
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Physical properties - SM 18x125 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x125 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130270 |
| GTIN/EAN | 5906301812722 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 125 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 - 6 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 18x125 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 125 | mm (L) |
| Active length | 89 | mm |
| Section count | 3 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~242 | g |
| Active area | 50 | 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 (3 sections)
Chart 3: Temperature performance
Chemical composition
| 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 |
Other proposals
Strengths and weaknesses of rare earth magnets.
Strengths
- They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (according to theory),
- They do not lose their magnetic properties even under close interference source,
- In other words, due to the smooth surface of silver, the element is aesthetically pleasing,
- Magnetic induction on the surface of the magnet remains very high,
- 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...
- Thanks to versatility in shaping and the capacity to modify to client solutions,
- Wide application in modern industrial fields – they serve a role in data components, electric motors, advanced medical instruments, also modern systems.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Cons
- At very strong impacts they can break, 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 reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- Limited ability of making nuts in the magnet and complex shapes - recommended is casing - magnetic holder.
- Health risk resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical in case of swallowing.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Pull force analysis
Magnetic strength at its maximum – what contributes to it?
- using a base made of mild steel, serving as a circuit closing element
- whose transverse dimension equals approx. 10 mm
- characterized by smoothness
- without the slightest insulating layer between the magnet and steel
- for force acting at a right angle (in the magnet axis)
- at ambient temperature room level
Determinants of lifting force in real conditions
- Distance (between the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) results in a decrease in force by up to 50% (this also applies to varnish, rust or dirt).
- Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the nominal value.
- Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Steel type – low-carbon steel gives the best results. Alloy admixtures reduce magnetic properties and holding force.
- Plate texture – smooth surfaces ensure maximum contact, which increases field saturation. Uneven metal weaken the grip.
- Thermal factor – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.
Lifting capacity was determined by applying a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate reduces the holding force.
H&S for magnets
Combustion hazard
Powder produced during machining of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.
Swallowing risk
NdFeB magnets are not toys. Swallowing several magnets can lead to them attracting across intestines, which constitutes a severe health hazard and necessitates urgent medical intervention.
Magnets are brittle
Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.
GPS and phone interference
Be aware: rare earth magnets produce a field that interferes with precision electronics. Maintain a safe distance from your phone, device, and navigation systems.
ICD Warning
Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Hand protection
Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!
Immense force
Handle with care. Neodymium magnets act from a distance and snap with massive power, often quicker than you can move away.
Allergy Warning
Some people experience a sensitization to nickel, which is the typical protective layer for neodymium magnets. Extended handling can result in a rash. We recommend use safety gloves.
Electronic devices
Device Safety: Strong magnets can ruin data carriers and delicate electronics (heart implants, medical aids, timepieces).
Permanent damage
Watch the temperature. Heating the magnet to high heat 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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