tel: +48 22 499 98 98

neodymium magnets

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

Magnets for water searching F200 GOLD

Where to buy strong magnet? Holders with magnets in airtight, solid steel enclosure are perfect for use in difficult, demanding climate conditions, including during snow and rain read...

magnetic holders

Magnetic holders can be applied to improve production, underwater exploration, or locating meteorites from gold read...

We promise to ship your order on the same day before 2:00 PM on working days.

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

SM 32x275 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130458

GTIN: 5906301813293

0

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

275 mm

Weight

1520 g

897.90 with VAT / pcs + price for transport

730.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
730.00 ZŁ
897.90 ZŁ
price from 5 pcs
693.50 ZŁ
853.01 ZŁ
price from 10 pcs
657.00 ZŁ
808.11 ZŁ

Not sure about your choice?

Call us now +48 22 499 98 98 otherwise get in touch through form through our site.
Strength as well as shape of magnets can be estimated using our magnetic mass calculator.

Order by 14:00 and we’ll ship today!

SM 32x275 [2xM8] / N52 - magnetic separator
Specification/characteristics SM 32x275 [2xM8] / N52 - magnetic separator
properties
values
Cat. no.
130458
GTIN
5906301813293
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
32 mm [±0,1 mm]
Height
275 mm [±0,1 mm]
Weight
1520 g [±0,1 mm]
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N52

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

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

Shopping tips

It is the "heart" of every magnetic filter used in industry for cleaning raw materials. 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 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). 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. 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.
The more Gauss, the smaller and more weakly magnetic particles will be effectively caught. The economical version (8kGs) handles large pieces of metal perfectly. High induction is necessary when contaminants are microscopic or weakly magnetic.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). You can choose a mounting method consistent with your technical design. We ensure fast realization of special orders and technical advice.

Pros and cons of rare earth magnets.

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

  • They retain magnetic properties for around ten years – the loss is just ~1% (based on simulations),
  • They do not lose their magnetic properties even under external field action,
  • Thanks to the reflective finish, the surface of Ni-Cu-Ni, gold-plated, or silver gives an elegant appearance,
  • Magnetic induction on the working part of the magnet is extremely intense,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Due to the possibility of free molding and customization to specialized solutions, NdFeB magnets can be manufactured in a broad palette of shapes and sizes, which expands the range of possible applications,
  • Versatile presence in future technologies – they are used in data components, drive modules, diagnostic systems, also multitasking production systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Drawbacks and weaknesses of neodymium magnets: application proposals

  • To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution secures the magnet and simultaneously increases its 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 as well as 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
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • We suggest a housing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
  • Health risk to health – tiny shards of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. It is also worth noting that small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
  • Due to expensive raw materials, their price is higher than average,

Breakaway strength of the magnet in ideal conditionswhat it depends on?

The declared magnet strength concerns the limit force, measured under laboratory conditions, meaning:

  • with the contact of a sheet made of special test steel, guaranteeing maximum field concentration
  • whose transverse dimension reaches at least 10 mm
  • with a plane perfectly flat
  • without any clearance between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • at conditions approx. 20°C

Key elements affecting lifting force

It is worth knowing that the magnet holding may be lower depending on the following factors, starting with the most relevant:

  • Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Plate material – low-carbon steel attracts best. Alloy steels lower magnetic permeability and holding force.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Rough surfaces weaken the grip.
  • Heat – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).

* Lifting capacity testing was carried out on a smooth plate of optimal thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. In addition, even a small distance {between} the magnet and the plate reduces the holding force.

Warnings

Do not underestimate power

Exercise caution. Rare earth magnets act from a distance and snap with massive power, often quicker than you can move away.

Medical implants

People with a heart stimulator have to keep an large gap from magnets. The magnetism can stop the functioning of the implant.

Shattering risk

Watch out for shards. Magnets can fracture upon uncontrolled impact, launching sharp fragments into the air. Wear goggles.

Threat to navigation

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

This is not a toy

Absolutely keep magnets out of reach of children. Choking hazard is significant, and the consequences of magnets connecting inside the body are fatal.

Sensitization to coating

Medical facts indicate that nickel (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact and choose coated magnets.

Machining danger

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

Bone fractures

Large magnets can break fingers in a fraction of a second. Do not place your hand betwixt two strong magnets.

Thermal limits

Do not overheat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, ask us about special high-temperature series (H, SH, UH).

Electronic hazard

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

Important!

Details about risks in the article: Magnet Safety Guide.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98