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SM 19x225 [2xM6] / N50 - magnetic separator

magnetic separator

Catalog no 130241

GTIN/EAN: 5906301812708

5.00

Diameter Ø

19 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 12 000 Gauss [±5%]

492.00 ZŁ with VAT / pcs + price for transport

400.00 ZŁ net + 23% VAT / pcs

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SM 19x225 [2xM6] / N50 - magnetic separator

Specification / characteristics SM 19x225 [2xM6] / N50 - magnetic separator

properties
properties values
Cat. no. 130241
GTIN/EAN 5906301812708
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 19 mm [±1 mm]
Height 225 mm [±1 mm]
Weight 0.01 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 12 000 Gauss [±5%]
Size/Mount Quantity 2xM6
Polarity circumferential - 12 poles
Casing Tube Thickness 0.5 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N50

Specification / characteristics SM 19x225 [2xM6] / N50 - magnetic separator
properties values units
remenance Br [min. - max.] ? 14-14.6 kGs
remenance Br [min. - max.] ? 1400-1460 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.] ? 47-51 BH max MGOe
energy density [min. - max.] ? 374-406 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°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
Technical and environmental data
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
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 130241-2025
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A magnetic rod is the basic element of building grate separators and magnetic filters. Its task is separation (separation) of metal filings from the transported material. High magnetic induction on the surface allows catching the finest iron particles.
The outer layer is hygienic acid-resistant steel, approved for food contact. Inside there is a stack of strong neodymium magnets arranged in a special configuration (magnetic circuit). Such construction ensures full resistance to corrosion, water, oils, and acids.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
The more Gauss, the smaller and more weakly magnetic particles will be effectively caught. Standard rods (~8000 Gs) are sufficient for catching screws, nails, and steel shavings. For the food and precision industry, we recommend the highest induction parameters.
We fulfill individual orders for bars perfectly matched to your machine or separator. We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat pivots, mills, or handles. We ensure fast realization of special orders and technical advice.

Pros as well as cons of rare earth magnets.

Pros
In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
  • They retain their magnetic properties even under strong external field,
  • In other words, due to the aesthetic layer of gold, the element is aesthetically pleasing,
  • Magnetic induction on the surface of the magnet remains impressive,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for functioning at temperatures reaching 230°C and above...
  • Possibility of custom machining and adapting to individual applications,
  • Huge importance in modern technologies – they are commonly used in data components, motor assemblies, medical devices, as well as technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,
Weaknesses
What to avoid - cons of neodymium magnets and proposals for their use:
  • At strong impacts they can crack, therefore we advise placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • Neodymium magnets lose their power 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 stability even at temperatures 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 a housing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex shapes.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these devices can be problematic in diagnostics medical in case of swallowing.
  • With mass production the cost of neodymium magnets is a challenge,

Holding force characteristics

Magnetic strength at its maximum – what contributes to it?
Information about lifting capacity was defined for ideal contact conditions, assuming:
  • with the application of a sheet made of low-carbon steel, ensuring maximum field concentration
  • whose thickness is min. 10 mm
  • with an ground touching surface
  • without the slightest clearance between the magnet and steel
  • under perpendicular force vector (90-degree angle)
  • in stable room temperature
Magnet lifting force in use – key factors
In real-world applications, the actual holding force results from many variables, ranked from the most important:
  • Clearance – existence of foreign body (paint, tape, air) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits significantly lower power (often approx. 20-30% of maximum force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of generating force.
  • Metal type – not every steel attracts identically. Alloy additives worsen the attraction effect.
  • Surface condition – smooth surfaces ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Temperature – temperature increase results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet and the plate lowers the load capacity.

Safety rules for work with NdFeB magnets
Eye protection

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.

ICD Warning

Warning for patients: Powerful magnets affect electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Thermal limits

Keep cool. NdFeB magnets are sensitive to heat. If you need resistance above 80°C, inquire about HT versions (H, SH, UH).

Nickel allergy

Some people have a sensitization to Ni, which is the common plating for neodymium magnets. Extended handling can result in dermatitis. We suggest use protective gloves.

Do not give to children

Absolutely keep magnets away from children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Do not drill into magnets

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Magnetic media

Intense magnetic fields can destroy records on credit cards, HDDs, and storage devices. Keep a distance of min. 10 cm.

Compass and GPS

Navigation devices and smartphones are extremely sensitive to magnetic fields. Direct contact with a powerful NdFeB magnet can decalibrate the sensors in your phone.

Do not underestimate power

Be careful. Neodymium magnets attract from a long distance and connect with huge force, often faster than you can react.

Serious injuries

Watch your fingers. Two powerful magnets will snap together instantly with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Security! Need more info? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98