tel: +48 888 99 98 98

Neodymium magnets: strength you're looking for

Want to buy really powerful magnets? Our range includes complete range of various shapes and sizes. Perfect for for home use, garage and industrial tasks. Browse assortment available immediately.

see price list and dimensions

Magnet fishing: strong F200/F400 sets

Discover your passion with treasure salvaging! Our specialized grips (F200, F400) provide safety guarantee and immense power. Solid, corrosion-resistant housing and reinforced ropes will perform in challenging water conditions.

find your set

Magnetic solutions for business

Professional solutions for fixing non-invasive. Threaded grips (external or internal) provide quick improvement of work on warehouses. Perfect for installing lamps, sensors and ads.

see available threads

📦 Fast shipping: buy by 14:00, package goes out today!

Dhit sp. z o.o.
Product available Ships today (order by 14:00)

SM 32x225 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130361

GTIN/EAN: 5906301813095

Diameter Ø

32 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

1205 g

Magnetic Flux

~ 10 000 Gauss [±5%]

676.50 with VAT / pcs + price for transport

550.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
550.00 ZŁ
676.50 ZŁ
price from 5 pcs
522.50 ZŁ
642.68 ZŁ
price from 10 pcs
495.00 ZŁ
608.85 ZŁ
Need help making a decision?

Contact us by phone +48 22 499 98 98 otherwise let us know using our online form the contact page.
Parameters along with structure of neodymium magnets can be analyzed with our magnetic calculator.

Same-day processing for orders placed before 14:00.

Technical parameters - SM 32x225 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x225 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130361
GTIN/EAN 5906301813095
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 32 mm [±1 mm]
Height 225 mm [±1 mm]
Weight 1205 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 8 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x225 [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 and environmental data
Elemental analysis
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: 130361-2025
Quick Unit Converter
Magnet pull force

Magnetic Field

Other proposals

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. Thanks to the use of strong neodymium magnets, the rod catches even metallic dust.
The construction relies on a sealed, welded stainless steel housing, polished smooth. The core is a precise magnetic system generating high induction (Gauss). Thanks to this, the rod is durable, hygienic, and easy to keep clean.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. 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 Gauss value tells us how effectively and deeply the magnet will catch contaminants. Standard rods (~8000 Gs) are sufficient for catching screws, nails, and steel shavings. High induction is necessary when contaminants are microscopic or weakly magnetic.
We fulfill individual orders for bars perfectly matched to your machine or separator. You can choose a mounting method consistent with your technical design. Contact us for a quote on a non-standard dimension.

Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Besides their durability, neodymium magnets are valued for these benefits:
  • Their strength is durable, and after approximately 10 years it drops only by ~1% (theoretically),
  • They have excellent resistance to weakening of magnetic properties as a result of external fields,
  • The use of an refined layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnetic induction on the top side of the magnet remains impressive,
  • 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 forming as well as adapting to atypical applications,
  • Universal use in future technologies – they are used in hard drives, brushless drives, medical devices, and modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Cons

Problematic aspects of neodymium magnets and ways of using them
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment. For use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of creating nuts in the magnet and complicated shapes - preferred is a housing - mounting mechanism.
  • Health risk related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child health protection. It is also worth noting that tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
  • Due to neodymium price, their price exceeds standard values,

Lifting parameters

Maximum holding power of the magnet – what it depends on?

The specified lifting capacity represents the limit force, recorded under laboratory conditions, meaning:
  • using a plate made of high-permeability steel, acting as a magnetic yoke
  • with a thickness no less than 10 mm
  • characterized by even structure
  • under conditions of ideal adhesion (surface-to-surface)
  • under axial force direction (90-degree angle)
  • in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

Bear in mind that the application force will differ influenced by elements below, in order of importance:
  • Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Plate texture – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
  • Temperature – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate decreases the load capacity.

Safety rules for work with neodymium magnets
GPS Danger

An intense magnetic field interferes with the functioning of compasses in smartphones and navigation systems. Keep magnets close to a smartphone to prevent breaking the sensors.

Beware of splinters

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Safe distance

Do not bring magnets close to a purse, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Combustion hazard

Dust created during grinding of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Adults only

NdFeB magnets are not suitable for play. Eating several magnets can lead to them pinching intestinal walls, which constitutes a critical condition and requires immediate surgery.

Danger to pacemakers

Life threat: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Heat warning

Keep cool. NdFeB magnets are sensitive to heat. If you need operation above 80°C, look for special high-temperature series (H, SH, UH).

Pinching danger

Mind your fingers. Two large magnets will join instantly with a force of several hundred kilograms, crushing everything in their path. Exercise extreme caution!

Skin irritation risks

Some people have a hypersensitivity to nickel, which is the standard coating for neodymium magnets. Prolonged contact may cause an allergic reaction. We suggest wear protective gloves.

Safe operation

Handle with care. Rare earth magnets act from a long distance and connect with massive power, often faster than you can move away.

Warning! More info about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98