SMZR 25x225 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140235
GTIN/EAN: 5906301813439
Diameter Ø
25 mm [±1 mm]
Height
225 mm [±1 mm]
Weight
740 g
Magnetic Flux
~ 8 500 Gauss [±5%]
615.00 ZŁ with VAT / pcs + price for transport
500.00 ZŁ net + 23% VAT / pcs
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Lifting power along with shape of a neodymium magnet can be estimated with our
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Technical - SMZR 25x225 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 25x225 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140235 |
| GTIN/EAN | 5906301813439 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 225 mm [±1 mm] |
| Weight | 740 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 8 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 25x225 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 225 | mm (L) |
| Active length | 205 | mm |
| Section count | 8 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~839 | g |
| Active area | 161 | 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 (8 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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Pros and cons of rare earth magnets.
Strengths
- They have constant strength, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
- They show high resistance to demagnetization induced by presence of other magnetic fields,
- In other words, due to the smooth layer of silver, the element gains visual value,
- They show high magnetic induction at the operating surface, which improves attraction properties,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
- Possibility of custom creating as well as adjusting to atypical conditions,
- Huge importance in electronics industry – they are used in magnetic memories, drive modules, advanced medical instruments, also complex engineering applications.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in miniature devices
Weaknesses
- Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a special holder, which not only secures them against impacts but also increases their durability
- When exposed to high temperature, neodymium magnets experience a drop in strength. 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
- They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
- Limited ability of producing nuts in the magnet and complicated shapes - recommended is casing - magnetic holder.
- Health risk resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the context of child safety. It is also worth noting that small components of these magnets can complicate diagnosis medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Lifting parameters
Best holding force of the magnet in ideal parameters – what affects it?
- with the application of a yoke made of special test steel, guaranteeing maximum field concentration
- whose transverse dimension reaches at least 10 mm
- with a surface perfectly flat
- with total lack of distance (no coatings)
- during detachment in a direction perpendicular to the plane
- in neutral thermal conditions
Lifting capacity in practice – influencing factors
- Distance – existence of any layer (rust, tape, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
- Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of nominal force).
- Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Material composition – different alloys reacts the same. High carbon content worsen the attraction effect.
- Surface structure – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
- Thermal factor – hot environment reduces magnetic field. Exceeding the limit temperature can permanently damage the magnet.
Lifting capacity was measured with the use of a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a small distance between the magnet and the plate lowers the load capacity.
H&S for magnets
Pacemakers
Warning for patients: Powerful magnets affect electronics. Keep at least 30 cm distance or request help to work with the magnets.
Heat sensitivity
Do not overheat. Neodymium magnets are susceptible to temperature. If you need resistance above 80°C, look for HT versions (H, SH, UH).
Crushing risk
Risk of injury: The pulling power is so great that it can result in hematomas, crushing, and broken bones. Protective gloves are recommended.
Shattering risk
Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Clashing of two magnets will cause them breaking into shards.
Immense force
Handle magnets consciously. Their powerful strength can surprise even experienced users. Stay alert and do not underestimate their power.
Allergy Warning
Some people suffer from a hypersensitivity to nickel, which is the common plating for NdFeB magnets. Prolonged contact can result in dermatitis. We recommend wear protective gloves.
Electronic devices
Very strong magnetic fields can corrupt files on payment cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.
Do not give to children
Neodymium magnets are not intended for children. Swallowing a few magnets can lead to them connecting inside the digestive tract, which poses a severe health hazard and requires immediate surgery.
Threat to navigation
A strong magnetic field interferes with the operation of compasses in phones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.
Mechanical processing
Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.
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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