SMZR 25x125 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140233
GTIN/EAN: 5906301813415
Diameter Ø
25 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
540 g
Magnetic Flux
~ 8 500 Gauss [±5%]
369.00 ZŁ with VAT / pcs + price for transport
300.00 ZŁ net + 23% VAT / pcs
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Technical details - SMZR 25x125 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x125 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140233 |
| GTIN/EAN | 5906301813415 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 540 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 4 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N52
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 14.2-14.7 | kGs |
| remenance Br [min. - max.] ? | 1420-1470 | mT |
| coercivity bHc ? | 10.8-12.5 | kOe |
| coercivity bHc ? | 860-995 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 48-53 | BH max MGOe |
| energy density [min. - max.] ? | 380-422 | 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
SMZR 25x125 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 125 | mm (L) |
| Active length | 105 | mm |
| Section count | 4 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~466 | g |
| Active area | 82 | 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) | 18.1 | kg (theor.) |
| Induction (surface) | ~8 500 | Gauss (Max) |
Chart 2: Field profile (4 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 as well as weaknesses of Nd2Fe14B magnets.
Strengths
- They do not lose power, even during nearly ten years – the drop in lifting capacity is only ~1% (theoretically),
- They maintain their magnetic properties even under close interference source,
- By applying a decorative coating of gold, the element has an nice look,
- They are known for high magnetic induction at the operating surface, which increases their power,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Due to the ability of free molding and adaptation to specialized needs, magnetic components can be produced in a variety of shapes and sizes, which expands the range of possible applications,
- Significant place in modern technologies – they find application in HDD drives, electric drive systems, precision medical tools, also industrial machines.
- Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Cons
- To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
- We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend 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 prevent oxidation and corrosion.
- We recommend casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated shapes.
- Possible danger related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these products can be problematic in diagnostics medical when they are in the body.
- Due to expensive raw materials, their price is higher than average,
Pull force analysis
Maximum lifting force for a neodymium magnet – what it depends on?
- using a base made of mild steel, acting as a magnetic yoke
- possessing a massiveness of min. 10 mm to avoid saturation
- with an polished touching surface
- without the slightest clearance between the magnet and steel
- during pulling in a direction vertical to the plane
- in stable room temperature
Practical aspects of lifting capacity – factors
- Gap (between the magnet and the plate), because even a tiny clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or dirt).
- Force direction – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
- Steel grade – ideal substrate is high-permeability steel. Stainless steels may have worse magnetic properties.
- Plate texture – ground elements ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
- Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).
Lifting capacity was assessed using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the lifting capacity is smaller. In addition, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.
Precautions when working with neodymium magnets
Fragile material
NdFeB magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets leads to them cracking into shards.
Combustion hazard
Fire hazard: Rare earth powder is highly flammable. Do not process magnets without safety gear as this risks ignition.
Medical implants
Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.
Physical harm
Danger of trauma: The pulling power is so immense that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.
Powerful field
Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.
Keep away from children
Only for adults. Small elements can be swallowed, causing severe trauma. Store out of reach of kids and pets.
Precision electronics
An intense magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Keep magnets near a device to prevent damaging the sensors.
Metal Allergy
It is widely known that nickel (the usual finish) is a common allergen. If you have an allergy, prevent direct skin contact or select encased magnets.
Data carriers
Very strong magnetic fields can destroy records on credit cards, HDDs, and storage devices. Stay away of at least 10 cm.
Permanent damage
Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.
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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