e-mail: bok@dhit.pl

neodymium magnets

We provide blue color magnets Nd2Fe14B - our offer. All "neodymium magnets" on our website are available for immediate purchase (check the list). Check out the magnet pricing for more details check the magnet price list

Magnets for searching F200 GOLD

Where to purchase very strong magnet? Magnet holders in airtight and durable steel enclosure are excellent for use in difficult, demanding climate conditions, including during snow and rain more

magnets with holders

Magnetic holders can be used to facilitate production processes, underwater exploration, or finding space rocks from gold see...

We promise to ship ordered magnets if the order is placed by 2:00 PM on weekdays.

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

SM 32x125 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130357

GTIN: 5906301813057

0

Diameter Ø

32 mm [±1 mm]

Height

125 mm [±1 mm]

Weight

690 g

Magnetic Flux

~ 10 000 Gauss [±5%]

455.10 with VAT / pcs + price for transport

370.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
370.00 ZŁ
455.10 ZŁ
price from 10 pcs
351.50 ZŁ
432.34 ZŁ
price from 15 pcs
333.00 ZŁ
409.59 ZŁ

Not sure what to buy?

Call us +48 888 99 98 98 if you prefer contact us via inquiry form our website.
Specifications as well as shape of neodymium magnets can be verified with our force calculator.

Order by 14:00 and we’ll ship today!

SM 32x125 [2xM8] / N52 - magnetic separator
Specification/characteristics SM 32x125 [2xM8] / N52 - magnetic separator
properties
values
Cat. no.
130357
GTIN
5906301813057
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
32 mm [±1 mm]
Height
125 mm [±1 mm]
Weight
690 g
Material Type
Stainless steel AISI 304 / A2
Magnetic Flux
~ 10 000 Gauss [±5%]
Size/Mount Quantity
2xM8
Polarity
circumferential - 4 poles
Casing Tube Thickness
1 mm
Manufacturing Tolerance
±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

A magnetic rod is the basic element of building grate separators and magnetic filters. 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 outer layer is hygienic acid-resistant steel, approved for food contact. The center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Thanks to this, the rod is durable, hygienic, and easy to keep clean.
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). For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
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 Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
We can produce a rod of non-standard length with any mounting termination. The rod end is strictly adapted to the fastening system in your device. We ensure fast realization of special orders and technical advice.

Advantages and disadvantages of rare earth magnets.

Besides their stability, neodymium magnets are valued for these benefits:

  • Their magnetic field is maintained, and after around 10 years it drops only by ~1% (according to research),
  • Neodymium magnets remain highly resistant to magnetic field loss caused by external field sources,
  • By applying a shiny coating of silver, the element presents an proper look,
  • They feature high magnetic induction at the operating surface, making them more effective,
  • Neodymium magnets are characterized by very 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 creating and adapting to atypical conditions,
  • Universal use in modern industrial fields – they find application in data components, electric motors, medical devices, also other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Problematic aspects of neodymium magnets: weaknesses and usage proposals

  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • Limited possibility of producing threads in the magnet and complicated forms - preferred is cover - magnet mounting.
  • Possible danger resulting from small fragments of magnets can be dangerous, if swallowed, which gains importance in the context of child health protection. Additionally, small elements of these devices can disrupt the diagnostic process medical after entering the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Maximum lifting force for a neodymium magnet – what contributes to it?

The specified lifting capacity represents the maximum value, measured under laboratory conditions, meaning:

  • on a block made of structural steel, effectively closing the magnetic flux
  • possessing a thickness of minimum 10 mm to ensure full flux closure
  • with an ideally smooth touching surface
  • under conditions of no distance (surface-to-surface)
  • under perpendicular force vector (90-degree angle)
  • at ambient temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

During everyday use, the actual holding force depends on many variables, ranked from the most important:

  • Air gap (between the magnet and the plate), as even a tiny clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or debris).
  • Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of nominal force).
  • Steel thickness – insufficiently thick plate causes magnetic saturation, causing part of the power to be escaped to the other side.
  • Material type – ideal substrate is pure iron steel. Hardened steels may attract less.
  • Surface finish – ideal contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. When it is hot they lose power, and at low temperatures gain strength (up to a certain limit).

* Lifting capacity was measured by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the holding force is lower. In addition, even a slight gap {between} the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets

Shattering risk

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

Warning for heart patients

Individuals with a heart stimulator must maintain an safe separation from magnets. The magnetic field can interfere with the operation of the life-saving device.

Cards and drives

Intense magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Stay away of min. 10 cm.

Flammability

Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Bone fractures

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

GPS and phone interference

GPS units and mobile phones are extremely susceptible to magnetic fields. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Keep away from children

NdFeB magnets are not intended for children. Swallowing multiple magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and requires urgent medical intervention.

Thermal limits

Control the heat. Heating the magnet above 80 degrees Celsius will destroy its magnetic structure and strength.

Allergy Warning

It is widely known that the nickel plating (the usual finish) is a potent allergen. If you have an allergy, refrain from touching magnets with bare hands or choose encased magnets.

Caution required

Handle magnets with awareness. Their huge power can shock even experienced users. Plan your moves and do not underestimate their force.

Danger!

Learn more about hazards in the article: Magnet Safety Guide.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98