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SM 32x400 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130302
GTIN/EAN: 5906301812951
Diameter Ø
32 mm [±1 mm]
Height
400 mm [±1 mm]
Weight
2145 g
Magnetic Flux
~ 8 000 Gauss [±5%]
1193.10 ZŁ with VAT / pcs + price for transport
970.00 ZŁ net + 23% VAT / pcs
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Technical specification of the product - SM 32x400 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x400 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130302 |
| GTIN/EAN | 5906301812951 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 400 mm [±1 mm] |
| Weight | 2145 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 15 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 32x400 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 400 | mm (L) |
| Active length | 364 | mm |
| Section count | 15 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~2445 | g |
| Active area | 366 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (15 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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Pros and cons of neodymium magnets.
Strengths
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
- Neodymium magnets prove to be exceptionally resistant to demagnetization caused by external field sources,
- In other words, due to the aesthetic surface of silver, the element looks attractive,
- Magnetic induction on the working part of the magnet turns out to be maximum,
- Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
- Possibility of precise forming and modifying to complex requirements,
- Huge importance in innovative solutions – they are used in computer drives, electric motors, medical devices, and complex engineering applications.
- Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Weaknesses
- At strong impacts they can break, therefore we advise placing them in strong housings. 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.
- Magnets exposed to a humid environment can rust. Therefore during using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
- We recommend a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex shapes.
- Health risk resulting from small fragments of magnets are risky, when accidentally swallowed, which gains importance in the context of child health protection. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical after entering the body.
- With large orders the cost of neodymium magnets is economically unviable,
Pull force analysis
Maximum lifting capacity of the magnet – what affects it?
- on a plate made of structural steel, perfectly concentrating the magnetic flux
- possessing a massiveness of minimum 10 mm to avoid saturation
- characterized by lack of roughness
- without the slightest insulating layer between the magnet and steel
- for force acting at a right angle (pull-off, not shear)
- at temperature approx. 20 degrees Celsius
Practical lifting capacity: influencing factors
- Distance – existence of any layer (rust, tape, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
- 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.
- Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
- Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).
Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet’s surface and the plate decreases the holding force.
Warnings
Compass and GPS
An intense magnetic field interferes with the functioning of magnetometers in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.
Protective goggles
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets leads to them shattering into small pieces.
Dust explosion hazard
Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.
ICD Warning
Life threat: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.
Nickel allergy
A percentage of the population have a contact allergy to nickel, which is the typical protective layer for neodymium magnets. Frequent touching can result in an allergic reaction. We suggest use safety gloves.
Physical harm
Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Be careful!
Protect data
Data protection: Neodymium magnets can damage data carriers and sensitive devices (heart implants, hearing aids, timepieces).
Handling rules
Use magnets with awareness. Their powerful strength can shock even professionals. Plan your moves and respect their power.
Keep away from children
Absolutely keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets clamping inside the body are tragic.
Demagnetization risk
Control the heat. Exposing the magnet to high heat will ruin its magnetic structure 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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