![Separation magnetic rod SM 25x175 [2xM8] / N52](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Separation magnetic rod SM 25x175 [2xM8] / N52")
![SM 25x175 [2xM8] / N52 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-25x175-2xm8-gif.jpg)
SM 25x175 [2xM8] / N52 - magnetic separator
magnetic separator
Catalog no 130369
GTIN/EAN: 5906301813170
Diameter Ø
25 mm [±1 mm]
Height
175 mm [±1 mm]
Weight
660 g
Magnetic Flux
~ 8 500 Gauss [±5%]
541.20 ZŁ with VAT / pcs + price for transport
440.00 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Give us a call
+48 22 499 98 98
or send us a note through
our online form
the contact page.
Strength along with structure of magnets can be tested with our
modular calculator.
Orders placed before 14:00 will be shipped the same business day.
Technical details - SM 25x175 [2xM8] / N52 - magnetic separator
Specification / characteristics - SM 25x175 [2xM8] / N52 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130369 |
| GTIN/EAN | 5906301813170 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 25 mm [±1 mm] |
| Height | 175 mm [±1 mm] |
| Weight | 660 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 500 Gauss [±5%] |
| Size/Mount Quantity | M8x2 |
| Polarity | circumferential - 6 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
SM 25x175 [2xM8] / N52
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 25 | mm |
| Total length | 175 | mm (L) |
| Active length | 139 | mm |
| Section count | 6 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~653 | g |
| Active area | 109 | 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 (6 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 |
Other offers
![UMP 75x25 [M10x3] GW F200 GOLD DUAL / N42 - search holder](https://cdn3.dhit.pl/graphics/products/ump-75x25-m10x3-gw-f200-gold-dual-xoc.jpg "UMP 75x25 [M10x3] GW F200 GOLD DUAL / N42 - search holder")
Strengths as well as weaknesses of Nd2Fe14B magnets.
Pros
- They virtually do not lose strength, because even after 10 years the performance loss is only ~1% (based on calculations),
- Magnets very well resist against loss of magnetization caused by external fields,
- By using a smooth coating of silver, the element has an nice look,
- Neodymium magnets ensure maximum magnetic induction on a their surface, which ensures high operational effectiveness,
- Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
- Possibility of custom shaping and optimizing to specific applications,
- Wide application in high-tech industry – they serve a role in data components, drive modules, medical equipment, as well as technologically advanced constructions.
- Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,
Limitations
- At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest 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 secure oxidation and corrosion.
- We recommend a housing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated shapes.
- Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which is particularly important in the aspect of protecting the youngest. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities
Pull force analysis
Maximum holding power of the magnet – what contributes to it?
- on a base made of structural steel, optimally conducting the magnetic flux
- with a cross-section no less than 10 mm
- with an polished contact surface
- under conditions of no distance (surface-to-surface)
- for force acting at a right angle (pull-off, not shear)
- at ambient temperature room level
Practical lifting capacity: influencing factors
- Distance – existence of any layer (paint, dirt, air) interrupts the magnetic circuit, which reduces capacity rapidly (even by 50% at 0.5 mm).
- Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- 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.
- Material composition – not every steel attracts identically. High carbon content worsen the interaction with the magnet.
- Smoothness – full contact is obtained only on smooth steel. Any scratches and bumps create air cushions, reducing force.
- Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Lifting capacity was measured by applying a steel plate with a smooth surface of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Additionally, even a slight gap between the magnet and the plate lowers the holding force.
Safe handling of NdFeB magnets
Pinching danger
Big blocks can crush fingers instantly. Under no circumstances put your hand between two attracting surfaces.
Heat sensitivity
Regular neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. This process is irreversible.
Choking Hazard
These products are not suitable for play. Accidental ingestion of a few magnets can lead to them connecting inside the digestive tract, which constitutes a direct threat to life and requires urgent medical intervention.
Handling guide
Use magnets consciously. Their powerful strength can surprise even professionals. Plan your moves and respect their power.
Magnetic media
Do not bring magnets near a wallet, computer, or TV. The magnetism can destroy these devices and wipe information from cards.
Nickel coating and allergies
Some people experience a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Prolonged contact may cause skin redness. We recommend wear safety gloves.
Implant safety
Patients with a pacemaker should keep an large gap from magnets. The magnetism can disrupt the operation of the implant.
Magnet fragility
Neodymium magnets are ceramic materials, which means they are prone to chipping. Clashing of two magnets will cause them cracking into shards.
Machining danger
Dust created during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.
GPS Danger
Be aware: neodymium magnets generate a field that confuses precision electronics. Maintain a safe distance from your mobile, device, and GPS.
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
Rate the product
Your rating