tel: +48 888 99 98 98

neodymium magnets

We provide blue color magnetic Nd2Fe14B - our offer. All magnesy in our store are in stock for immediate delivery (see the list). Check out the magnet pricing for more details check the magnet price list

Magnet for treasure hunters F200 GOLD

Where to buy powerful neodymium magnet? Magnet holders in solid and airtight steel enclosure are excellent for use in challenging weather conditions, including snow and rain see

magnets with holders

Magnetic holders can be used to enhance production processes, underwater discoveries, or locating meteors made of metal more...

Shipping is always shipped on the day of purchase before 2:00 PM on weekdays.

Dhit sp. z o.o.
Product available Ships tomorrow

SM 25x100 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130366

GTIN: 5906301813149

5.00

Diameter Ø

25 mm [±1 mm]

Height

100 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 9 500 Gauss [±5%]

319.80 with VAT / pcs + price for transport

260.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
260.00 ZŁ
319.80 ZŁ
price from 10 pcs
247.00 ZŁ
303.81 ZŁ
price from 20 pcs
234.00 ZŁ
287.82 ZŁ

Hunting for a discount?

Give us a call +48 22 499 98 98 alternatively contact us via form through our site.
Lifting power and appearance of magnets can be analyzed on our our magnetic calculator.

Orders placed before 14:00 will be shipped the same business day.

SM 25x100 [2xM8] / N52 - magnetic separator

Specification / characteristics SM 25x100 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130366
GTIN 5906301813149
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 100 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 - 3 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 25x100 [2xM8] / N52 - magnetic separator
properties values units
remenance Br [Min. - Max.] ? 14.2-14.7 kGs
remenance Br [Min. - Max.] ? 1420-1470 T
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 106 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²
Measurement Calculator
Pulling Force

Magnetic Induction
Jak rozdzielać?

Nie próbuj odrywać magnesów siłą!
Zawsze zsuwaj je na bok krawędzi stołu.

STAY
MOVE
Zasady Bezpieczeństwa
Elektronika

Trzymaj z dala od dysków HDD, kart płatniczych i telefonów.

Rozruszniki Serca

Osoby z rozrusznikiem muszą zachować dystans min. 10 cm.

Nie dla dzieci

Ryzyko połknięcia. Połknięcie dwóch magnesów grozi śmiercią.

Kruchy materiał

Magnes to ceramika! Uderzenie o inny magnes spowoduje odpryski.

Do czego użyć tego magnesu?

Sprawdzone zastosowania dla wymiaru 15x10x2 mm

Elektronika i Czujniki

Idealny jako element wyzwalający dla czujników Halla oraz kontaktronów w systemach alarmowych. Płaski kształt (2mm) pozwala na ukrycie go w wąskich szczelinach obudowy.

Modelarstwo i Druk 3D

Stosowany do tworzenia niewidocznych zamknięć w modelach drukowanych 3D. Można go wprasować w wydruk lub wkleić w kieszeń zaprojektowaną w modelu CAD.

Meble i Fronty

Używany jako "domykacz" lekkich drzwiczek szafkowych, gdzie standardowe magnesy meblowe są za grube. Wymaga wklejenia w płytkie podfrezowanie.

Other proposals

A magnetic rod is the basic element of building grate separators and magnetic filters. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. 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. Inside there is a stack of strong neodymium magnets arranged in a special configuration (magnetic circuit). 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. You can use compressed air or special non-magnetic strippers (rings). In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. For basic machine protection against pieces of iron, standard power is sufficient. High Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Pros and cons of NdFeB magnets.

In addition to their long-term stability, neodymium magnets provide the following advantages:

  • They have constant strength, and over nearly 10 years their performance decreases symbolically – ~1% (according to theory),
  • They are resistant to demagnetization induced by presence of other magnetic fields,
  • Thanks to the glossy finish, the surface of nickel, gold-plated, or silver gives an clean appearance,
  • Magnetic induction on the top side of the magnet remains exceptional,
  • Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of individual forming as well as modifying to concrete requirements,
  • Fundamental importance in electronics industry – they find application in data components, electromotive mechanisms, precision medical tools, as well as other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which makes them useful in miniature devices

Disadvantages of neodymium magnets:

  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only protects 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 suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in creating threads and complicated shapes in magnets, we propose using casing - magnetic mechanism.
  • Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, small elements of these products are able to disrupt the diagnostic process medical after entering 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

Detachment force of the magnet in optimal conditionswhat contributes to it?

Magnet power is the result of a measurement for the most favorable conditions, taking into account:

  • using a sheet made of low-carbon steel, serving as a magnetic yoke
  • with a thickness of at least 10 mm
  • with a surface cleaned and smooth
  • without any air gap between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • at conditions approx. 20°C

Lifting capacity in practice – influencing factors

In real-world applications, the real power results from several key aspects, listed from the most important:

  • Air gap (between the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to varnish, rust or debris).
  • Direction of force – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Plate material – mild steel attracts best. Alloy admixtures decrease magnetic permeability and holding force.
  • Surface condition – ground elements guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
  • Temperature influence – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

* Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. In addition, even a slight gap {between} the magnet and the plate lowers the holding force.

H&S for magnets

Precision electronics

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

Pacemakers

For implant holders: Powerful magnets affect medical devices. Maintain at least 30 cm distance or ask another person to work with the magnets.

Allergy Warning

Medical facts indicate that nickel (the usual finish) is a strong allergen. For allergy sufferers, avoid touching magnets with bare hands and opt for coated magnets.

Bodily injuries

Pinching hazard: The attraction force is so immense that it can result in hematomas, pinching, and even bone fractures. Protective gloves are recommended.

This is not a toy

Neodymium magnets are not intended for children. Accidental ingestion of several magnets may result in them pinching intestinal walls, which poses a critical condition and necessitates urgent medical intervention.

Demagnetization risk

Watch the temperature. Heating the magnet to high heat will ruin its magnetic structure and pulling force.

Eye protection

Despite metallic appearance, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into sharp, dangerous pieces.

Combustion hazard

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

Immense force

Handle magnets with awareness. Their immense force can shock even professionals. Stay alert and respect their force.

Data carriers

Equipment safety: Strong magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).

Safety First!

Want to know more? Read our article: Why are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98