tel: +48 22 499 98 98

neodymium magnets

We offer red color magnets Nd2Fe14B - our store's offer. All magnesy neodymowe in our store are in stock for immediate purchase (check the list). See the magnet pricing for more details check the magnet price list

Magnet for treasure hunters F200 GOLD

Where to purchase powerful neodymium magnet? Magnet holders in solid and airtight steel casing are excellent for use in variable and difficult climate conditions, including during rain and snow more information

magnets with holders

Magnetic holders can be used to improve production processes, underwater discoveries, or searching for space rocks made of ore check...

Enjoy delivery of your order on the day of purchase by 2:00 PM on weekdays.

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

SM 32x450 [2xM8] / N42 - magnetic separator

magnetic separator

Catalog no 130303

GTIN: 5906301812968

5.00

Diameter Ø

32 mm [±1 mm]

Height

450 mm [±1 mm]

Weight

2410 g

Magnetic Flux

~ 8 000 Gauss [±5%]

1340.70 with VAT / pcs + price for transport

1090.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
1090.00 ZŁ
1340.70 ZŁ
price from 5 pcs
981.00 ZŁ
1206.63 ZŁ
Can't decide what to choose?

Call us +48 22 499 98 98 otherwise drop us a message using form through our site.
Force along with form of magnetic components can be verified with our modular calculator.

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

SM 32x450 [2xM8] / N42 - magnetic separator

Specification / characteristics SM 32x450 [2xM8] / N42 - magnetic separator

properties
properties values
Cat. no. 130303
GTIN 5906301812968
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 450 mm [±1 mm]
Weight 2410 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 8 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 17 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N42

Specification / characteristics SM 32x450 [2xM8] / N42 - magnetic separator
properties values units
remenance Br [Min. - Max.] ? 12.9-13.2 kGs
remenance Br [Min. - Max.] ? 1290-1320 T
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

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 Field

View more proposals

It is the "heart" of every magnetic filter used in industry for cleaning raw materials. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. 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 fulfill individual orders for bars perfectly matched to your machine or separator. The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Strengths as well as weaknesses of neodymium magnets.

Strengths
Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They retain full power for nearly 10 years – the drop is just ~1% (according to analyses),
  • They possess excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
  • The use of an refined finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Magnets are characterized by very high magnetic induction on the surface,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to flexibility in designing and the capacity to modify to client solutions,
  • Fundamental importance in electronics industry – they serve a role in data components, electric motors, precision medical tools, and complex engineering applications.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,
Disadvantages
What to avoid - cons of neodymium magnets: tips and applications.
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can fracture. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (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 very resistant to heat
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • We suggest casing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complex forms.
  • Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Furthermore, small components of these devices can complicate diagnosis medical after entering the body.
  • Due to neodymium price, their price is higher than average,

Pull force analysis

Magnetic strength at its maximum – what it depends on?
Magnet power was defined for the most favorable conditions, including:
  • using a plate made of low-carbon steel, serving as a ideal flux conductor
  • with a cross-section of at least 10 mm
  • characterized by lack of roughness
  • under conditions of no distance (metal-to-metal)
  • during pulling in a direction perpendicular to the mounting surface
  • in stable room temperature
Magnet lifting force in use – key factors
In practice, the actual lifting capacity depends on a number of factors, ranked from the most important:
  • Air gap (between the magnet and the metal), as 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 dirt).
  • Load vector – maximum parameter is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material type – the best choice is high-permeability steel. Hardened steels may attract less.
  • Surface finish – full contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was determined with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Safe handling of neodymium magnets
Warning for heart patients

Health Alert: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have electronic implants.

Demagnetization risk

Watch the temperature. Heating the magnet to high heat will permanently weaken its magnetic structure and strength.

Shattering risk

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Wear goggles.

Nickel allergy

A percentage of the population suffer from a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Extended handling might lead to dermatitis. We recommend use protective gloves.

Keep away from computers

Avoid bringing magnets near a wallet, computer, or TV. The magnetism can destroy these devices and erase data from cards.

Crushing force

Danger of trauma: The attraction force is so immense that it can cause blood blisters, crushing, and even bone fractures. Use thick gloves.

Handling rules

Before use, read the rules. Sudden snapping can break the magnet or injure your hand. Think ahead.

Dust is flammable

Drilling and cutting of NdFeB material carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Product not for children

NdFeB magnets are not toys. Swallowing several magnets can lead to them pinching intestinal walls, which constitutes a direct threat to life and requires urgent medical intervention.

Keep away from electronics

GPS units and smartphones are highly susceptible to magnetic fields. Close proximity with a strong magnet can decalibrate the internal compass in your phone.

Safety First! More info about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98