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
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% |
Ecology and recycling (GPSR)
| recyclability (EoL) | 100% |
| recycled raw materials | ~10% (pre-cons) |
| carbon footprint | low / zredukowany |
| waste code (EWC) | 16 02 16 |
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Advantages and disadvantages of rare earth magnets.
Pros
- They retain attractive force for nearly 10 years – the drop is just ~1% (in theory),
- Magnets effectively protect themselves against demagnetization caused by ambient magnetic noise,
- By applying a lustrous coating of gold, the element gains an modern look,
- Neodymium magnets create maximum magnetic induction on a contact point, which allows for strong attraction,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- In view of the option of precise forming and customization to unique solutions, magnetic components can be modeled in a wide range of shapes and sizes, which amplifies use scope,
- Wide application in advanced technology sectors – they find application in hard drives, electric drive systems, medical equipment, and modern systems.
- Thanks to concentrated force, small magnets offer high operating force, occupying minimum space,
Disadvantages
- To avoid cracks under impact, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
- Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
- We recommend casing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Furthermore, small components of these magnets are able to complicate diagnosis medical when they are in the body.
- Due to expensive raw materials, their price is higher than average,
Lifting parameters
Highest magnetic holding force – what contributes to it?
- with the use of a yoke made of low-carbon steel, guaranteeing maximum field concentration
- with a cross-section no less than 10 mm
- with a plane free of scratches
- with total lack of distance (without coatings)
- under perpendicular force vector (90-degree angle)
- at temperature room level
What influences lifting capacity in practice
- Distance – existence of any layer (paint, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Direction of force – highest force is obtained only during perpendicular pulling. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
- Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of converting into lifting capacity.
- Metal type – different alloys attracts identically. High carbon content worsen the attraction effect.
- Base smoothness – the more even the plate, the better the adhesion and stronger the hold. Roughness acts like micro-gaps.
- Operating temperature – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).
Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet and the plate reduces the load capacity.
Precautions when working with NdFeB magnets
Shattering risk
Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Wear goggles.
Impact on smartphones
Be aware: rare earth magnets produce a field that disrupts precision electronics. Keep a separation from your mobile, tablet, and GPS.
Heat warning
Avoid heat. NdFeB magnets are sensitive to heat. If you require resistance above 80°C, ask us about HT versions (H, SH, UH).
This is not a toy
Strictly keep magnets away from children. Risk of swallowing is high, and the effects of magnets connecting inside the body are very dangerous.
Safe distance
Intense magnetic fields can destroy records on credit cards, HDDs, and storage devices. Maintain a gap of at least 10 cm.
Danger to pacemakers
Health Alert: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.
Physical harm
Mind your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Exercise extreme caution!
Sensitization to coating
A percentage of the population suffer from a sensitization to nickel, which is the common plating for neodymium magnets. Frequent touching can result in skin redness. We suggest use safety gloves.
Machining danger
Drilling and cutting of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Safe operation
Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Be predictive.
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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