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SM 18x200 [2xM5] / N42 - magnetic separator
magnetic separator
Catalog no 130273
GTIN/EAN: 5906301812753
Diameter Ø
18 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
0.01 g
Magnetic Flux
~ 5 400 Gauss [±5%]
442.80 ZŁ with VAT / pcs + price for transport
360.00 ZŁ net + 23% VAT / pcs
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Technical parameters of the product - SM 18x200 [2xM5] / N42 - magnetic separator
Specification / characteristics - SM 18x200 [2xM5] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130273 |
| GTIN/EAN | 5906301812753 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 18 mm [±1 mm] |
| Height | 200 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 - 9 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 18x200 [2xM5] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 18 | mm |
| Total length | 200 | mm (L) |
| Active length | 164 | mm |
| Section count | 7 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~387 | g |
| Active area | 93 | 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 (7 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 |
See also proposals
![SM 32x100 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x100-2xm8-cox.jpg "SM 32x100 [2xM8] / N42 - magnetic separator")
![SM 25x400 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-25x400-2xm8-daj.jpg "SM 25x400 [2xM8] / N42 - magnetic separator")
![MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet](https://cdn3.dhit.pl/graphics/products/mpl-40x15x5x27-3.5-cas.jpg "MPL 40x15x5x2[7/3.5] / N38 - lamellar magnet")
![UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread](https://cdn3.dhit.pl/graphics/products/umgw-75x33x18-m10-gw-cak.jpg "UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread")
Strengths and weaknesses of neodymium magnets.
Strengths
- Their power is maintained, and after approximately 10 years it decreases only by ~1% (theoretically),
- They have excellent resistance to magnetic field loss when exposed to external fields,
- Thanks to the elegant finish, the surface of nickel, gold-plated, or silver-plated gives an aesthetic appearance,
- Magnetic induction on the working layer of the magnet turns out to be strong,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures reaching 230°C and above...
- Possibility of precise creating and optimizing to defined applications,
- Key role in advanced technology sectors – they serve a role in data components, brushless drives, precision medical tools, also industrial machines.
- Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications
Cons
- To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
- When exposed to high temperature, neodymium magnets experience 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
- They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
- Limited ability of producing threads in the magnet and complex shapes - recommended is a housing - mounting mechanism.
- Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these magnets can be problematic in diagnostics medical after entering the body.
- Due to expensive raw materials, their price is higher than average,
Pull force analysis
Maximum magnetic pulling force – what it depends on?
- with the use of a sheet made of low-carbon steel, ensuring maximum field concentration
- whose transverse dimension equals approx. 10 mm
- characterized by lack of roughness
- with zero gap (no coatings)
- for force acting at a right angle (pull-off, not shear)
- at conditions approx. 20°C
Practical aspects of lifting capacity – factors
- Distance – the presence of any layer (rust, tape, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick plate does not close the flux, causing part of the flux to be wasted into the air.
- Steel grade – ideal substrate is high-permeability steel. Cast iron may generate lower lifting capacity.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces reduce efficiency.
- Temperature – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.
Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, whereas under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.
Safe handling of NdFeB magnets
Do not give to children
Always store magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are tragic.
Allergic reactions
A percentage of the population experience a sensitization to Ni, which is the typical protective layer for NdFeB magnets. Frequent touching might lead to an allergic reaction. We strongly advise wear safety gloves.
Material brittleness
NdFeB magnets are ceramic materials, meaning they are prone to chipping. Collision of two magnets will cause them breaking into shards.
Do not underestimate power
Handle with care. Rare earth magnets attract from a long distance and connect with massive power, often quicker than you can react.
Cards and drives
Data protection: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, mechanical watches).
GPS Danger
Be aware: neodymium magnets produce a field that disrupts precision electronics. Maintain a separation from your phone, tablet, and GPS.
Crushing risk
Big blocks can break fingers in a fraction of a second. Do not place your hand between two strong magnets.
Demagnetization risk
Regular neodymium magnets (N-type) lose power when the temperature goes above 80°C. Damage is permanent.
Medical interference
Patients with a heart stimulator have to maintain an absolute distance from magnets. The magnetism can stop the operation of the life-saving device.
Dust is flammable
Dust created during grinding of magnets is combustible. Do not drill into magnets unless you are an expert.
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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