![Separation magnetic rod SM 32x250 [2xM8] / N42](https://cdn3.dhit.pl/graphics/banners/magnet.webp "Separation magnetic rod SM 32x250 [2xM8] / N42")
![SM 32x250 [2xM8] / N42 - magnetic separator](https://cdn3.dhit.pl/graphics/products/sm-32x250-2xm8-kex.jpg)
SM 32x250 [2xM8] / N42 - magnetic separator
magnetic separator
Catalog no 130299
GTIN/EAN: 5906301812920
Diameter Ø
32 mm [±1 mm]
Height
250 mm [±1 mm]
Weight
1240 g
Magnetic Flux
~ 8 000 Gauss [±5%]
873.30 ZŁ with VAT / pcs + price for transport
710.00 ZŁ net + 23% VAT / pcs
bulk discounts:
Need more?
Call us
+48 22 499 98 98
if you prefer contact us by means of
contact form
the contact form page.
Weight and structure of a magnet can be tested with our
force calculator.
Orders placed before 14:00 will be shipped the same business day.
Technical - SM 32x250 [2xM8] / N42 - magnetic separator
Specification / characteristics - SM 32x250 [2xM8] / N42 - magnetic separator
| properties | values |
|---|---|
| Cat. no. | 130299 |
| GTIN/EAN | 5906301812920 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 32 mm [±1 mm] |
| Height | 250 mm [±1 mm] |
| Weight | 1240 g |
| Material Type | Stainless steel AISI 304 / A2 |
| Magnetic Flux | ~ 8 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM8 |
| Polarity | circumferential - 9 poles |
| Casing Tube Thickness | 1 mm |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N42
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.9-13.2 | kGs |
| remenance Br [min. - max.] ? | 1290-1320 | mT |
| coercivity bHc ? | 10.8-12.0 | kOe |
| coercivity bHc ? | 860-955 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 40-42 | BH max MGOe |
| energy density [min. - max.] ? | 318-334 | 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 32x250 [2xM8] / N42
| Parameter | Value | Description / Unit |
|---|---|---|
| Diameter (Ø) | 32 | mm |
| Total length | 250 | mm (L) |
| Active length | 214 | mm |
| Section count | 9 | modules |
| Dead zone | 36 | mm (2x 18mm starter) |
| Weight (est.) | ~1528 | g |
| Active area | 215 | 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) | 26.2 | kg (theor.) |
| Induction (surface) | ~8 000 | Gauss (Max) |
Chart 2: Field profile (9 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
![UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread](https://cdn3.dhit.pl/graphics/products/umg-22x6-m4-gz-hiw.jpg "UMGGZ 22x6 [M4] GZ / N38 - rubber magnetic holder external thread")
Advantages as well as disadvantages of neodymium magnets.
Advantages
- They have constant strength, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
- Magnets effectively resist against demagnetization caused by foreign field sources,
- In other words, due to the metallic surface of nickel, the element gains a professional look,
- Magnets exhibit huge magnetic induction on the working surface,
- Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
- Possibility of accurate shaping as well as adjusting to atypical applications,
- Universal use in advanced technology sectors – they are commonly used in mass storage devices, electric motors, diagnostic systems, and industrial machines.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Disadvantages
- At very strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in creating threads and complicated forms in magnets, we propose using cover - magnetic mount.
- Health risk to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. It is also worth noting that tiny parts of these magnets are able to disrupt the diagnostic process medical when they are in the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Pull force analysis
Maximum magnetic pulling force – what affects it?
- with the application of a sheet made of special test steel, ensuring maximum field concentration
- with a cross-section of at least 10 mm
- with an polished touching surface
- under conditions of no distance (surface-to-surface)
- during detachment in a direction vertical to the mounting surface
- in neutral thermal conditions
Impact of factors on magnetic holding capacity in practice
- Distance – the presence of foreign body (paint, dirt, air) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
- Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
- Base massiveness – insufficiently thick sheet does not close the flux, causing part of the power to be escaped into the air.
- Metal type – different alloys reacts the same. High carbon content weaken the attraction effect.
- Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
- Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.
Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.
Warnings
Swallowing risk
Product intended for adults. Tiny parts pose a choking risk, leading to serious injuries. Store out of reach of kids and pets.
Warning for heart patients
People with a pacemaker have to maintain an absolute distance from magnets. The magnetism can stop the operation of the life-saving device.
Operating temperature
Keep cool. NdFeB magnets are susceptible to heat. If you need operation above 80°C, inquire about HT versions (H, SH, UH).
Do not drill into magnets
Powder generated during cutting of magnets is self-igniting. Avoid drilling into magnets unless you are an expert.
Shattering risk
NdFeB magnets are sintered ceramics, which means they are prone to chipping. Impact of two magnets will cause them breaking into small pieces.
Physical harm
Pinching hazard: The attraction force is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.
Metal Allergy
It is widely known that nickel (standard magnet coating) is a common allergen. If you have an allergy, prevent touching magnets with bare hands or opt for encased magnets.
Magnetic media
Data protection: Strong magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).
Immense force
Handle magnets consciously. Their immense force can surprise even professionals. Be vigilant and respect their force.
Magnetic interference
Remember: neodymium magnets generate a field that confuses precision electronics. Keep a separation from your mobile, device, and navigation systems.
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