SMZR 32x125 / N52 - magnetic separator with handle
magnetic separator with handle
Catalog no 140238
GTIN/EAN: 5906301813460
Diameter Ø
32 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
690 g
Magnetic Flux
~ 10 000 Gauss [±5%]
430.50 ZŁ with VAT / pcs + price for transport
350.00 ZŁ net + 23% VAT / pcs
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Technical specification - SMZR 32x125 / N52 - magnetic separator with handle
Specification / characteristics - SMZR 32x125 / N52 - magnetic separator with handle
| properties | values |
|---|---|
| Cat. no. | 140238 |
| GTIN/EAN | 5906301813460 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 125 mm [±1 mm] |
| Weight | 690 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| 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 32x125 / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 125 | mm (L) |
| Active length | 105 | mm |
| Section count | 4 | modules |
| Dead zone | 20 | mm (Blaszka 2mm + Gwint 18mm) |
| Weight (est.) | ~764 | g |
| Active area | 106 | 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) | 41 | kg (theor.) |
| Induction (surface) | ~10 000 | Gauss (Max) |
Chart 2: Field profile (4 sections)
Chart 3: Temperature performance
Chemical composition
| 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 |
Other proposals
Pros as well as cons of Nd2Fe14B magnets.
Pros
- They do not lose magnetism, even over approximately ten years – the drop in strength is only ~1% (according to tests),
- Magnets effectively defend themselves against demagnetization caused by ambient magnetic noise,
- Thanks to the reflective finish, the surface of nickel, gold, or silver gives an aesthetic appearance,
- Magnetic induction on the surface of the magnet is exceptional,
- Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
- Possibility of detailed forming and adapting to defined needs,
- Key role in innovative solutions – they serve a role in data components, drive modules, diagnostic systems, also multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in miniature devices
Cons
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
- NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
- Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
- We recommend cover - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
- Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
- Due to complex production process, their price exceeds standard values,
Lifting parameters
Maximum lifting capacity of the magnet – what it depends on?
- using a base made of low-carbon steel, serving as a magnetic yoke
- with a thickness minimum 10 mm
- with a surface perfectly flat
- under conditions of gap-free contact (metal-to-metal)
- for force applied at a right angle (pull-off, not shear)
- in stable room temperature
What influences lifting capacity in practice
- Clearance – the presence of foreign body (rust, dirt, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
- Load vector – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Metal type – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
- Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
- Thermal environment – temperature increase results in weakening of induction. It is worth remembering the thermal limit for a given model.
Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.
H&S for magnets
Electronic devices
Device Safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).
Do not underestimate power
Exercise caution. Neodymium magnets act from a long distance and connect with massive power, often quicker than you can move away.
Threat to navigation
A powerful magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.
Maximum temperature
Do not overheat. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).
Allergic reactions
A percentage of the population experience a contact allergy to nickel, which is the common plating for NdFeB magnets. Extended handling can result in an allergic reaction. It is best to use protective gloves.
Eye protection
Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.
Do not give to children
Only for adults. Small elements pose a choking risk, causing serious injuries. Store out of reach of children and animals.
Do not drill into magnets
Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.
Medical implants
Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.
Bodily injuries
Big blocks can crush fingers in a fraction of a second. Never put your hand between two attracting surfaces.
