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SM 25x200 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130364

GTIN/EAN: 5906301813125

Diameter Ø

25 mm [±1 mm]

Height

200 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 9 500 Gauss [±5%]

615.00 with VAT / pcs + price for transport

500.00 ZŁ net + 23% VAT / pcs

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Technical parameters of the product - SM 25x200 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 25x200 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130364
GTIN/EAN 5906301813125
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 25 mm [±1 mm]
Height 200 mm [±1 mm]
Weight 0.01 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 9 500 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 7 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 25x200 [2xM8] / N52 - magnetic separator
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

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 specification and ecology
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%
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: 130364-2025
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Magnet pull force

Magnetic Induction

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It is the "heart" of every magnetic filter used in industry for cleaning raw materials. It is commonly used for cleaning flour, sugar, plastic granules, as well as oils and coolants. High magnetic induction on the surface allows catching the finest iron particles.
The construction relies on a sealed, welded stainless steel housing, polished smooth. The center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Such construction ensures full resistance to corrosion, water, oils, and acids.
Metal filings stick to the surface very strongly, so cleaning requires strength or cleverness. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. 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 can produce a rod of non-standard length with any mounting termination. You can choose a mounting method consistent with your technical design. Contact us for a quote on a non-standard dimension.

Advantages and disadvantages of neodymium magnets.

Pros

Apart from their notable holding force, neodymium magnets have these key benefits:
  • They have constant strength, and over around ten years their attraction force decreases symbolically – ~1% (according to theory),
  • They show high resistance to demagnetization induced by external disturbances,
  • In other words, due to the aesthetic layer of gold, the element becomes visually attractive,
  • Neodymium magnets deliver maximum magnetic induction on a contact point, which allows for strong attraction,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, enabling action at temperatures reaching 230°C and above...
  • Thanks to the ability of accurate shaping and customization to specialized projects, magnetic components can be created in a variety of forms and dimensions, which expands the range of possible applications,
  • Fundamental importance in high-tech industry – they are commonly used in magnetic memories, electromotive mechanisms, advanced medical instruments, and other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Weaknesses

Disadvantages of NdFeB magnets:
  • At very strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage and increases the magnet's durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • We recommend casing - magnetic holder, due to difficulties in producing threads inside the magnet and complex forms.
  • Potential hazard related to microscopic parts of magnets can be dangerous, if swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to disrupt the diagnostic process medical after entering the body.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum lifting capacity of the magnetwhat contributes to it?

Breakaway force was defined for optimal configuration, assuming:
  • with the use of a sheet made of special test steel, ensuring maximum field concentration
  • possessing a thickness of at least 10 mm to avoid saturation
  • with a plane perfectly flat
  • without any clearance between the magnet and steel
  • under perpendicular application of breakaway force (90-degree angle)
  • in stable room temperature

What influences lifting capacity in practice

During everyday use, the actual lifting capacity results from a number of factors, presented from crucial:
  • Clearance – existence of any layer (paint, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the maximum value.
  • Steel thickness – too thin plate does not accept the full field, causing part of the flux to be wasted into the air.
  • Metal type – different alloys attracts identically. Alloy additives weaken the attraction effect.
  • Plate texture – ground elements guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
  • Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the lifting capacity.

Warnings
Serious injuries

Large magnets can break fingers instantly. Never place your hand between two strong magnets.

Fire risk

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Cards and drives

Intense magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Handling rules

Handle magnets consciously. Their immense force can surprise even professionals. Be vigilant and do not underestimate their power.

Demagnetization risk

Avoid heat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Fragile material

Watch out for shards. Magnets can explode upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

GPS Danger

A powerful magnetic field negatively affects the functioning of compasses in phones and navigation systems. Do not bring magnets near a smartphone to prevent damaging the sensors.

Pacemakers

For implant holders: Strong magnetic fields disrupt medical devices. Keep at least 30 cm distance or ask another person to work with the magnets.

Warning for allergy sufferers

It is widely known that nickel (the usual finish) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands and opt for coated magnets.

Adults only

Always keep magnets out of reach of children. Choking hazard is high, and the consequences of magnets connecting inside the body are tragic.

Important! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98