tel: +48 888 99 98 98

neodymium magnets

We offer yellow color magnets Nd2Fe14B - our proposal. Practically all "neodymium magnets" in our store are in stock for immediate delivery (check the list). Check out the magnet price list for more details see the magnet price list

Magnet for searching F300 GOLD

Where to buy strong neodymium magnet? Magnetic holders in solid and airtight steel enclosure are ideally suited for use in challenging weather conditions, including snow and rain see more...

magnets with holders

Holders with magnets can be used to facilitate manufacturing, exploring underwater areas, or locating meteors from gold check...

Enjoy shipping of your order if the order is placed by 2:00 PM on working days.

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

SM 32x275 [2xM8] / N42 - magnetic separator

magnetic separator

Catalog no 130376

GTIN: 5906301813248

0

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

275 mm

Weight

1475 g

824.10 with VAT / pcs + price for transport

670.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
670.00 ZŁ
824.10 ZŁ
price from 5 pcs
636.50 ZŁ
782.90 ZŁ
price from 10 pcs
603.00 ZŁ
741.69 ZŁ

Need help making a decision?

Call us now +48 22 499 98 98 or get in touch through request form our website.
Strength along with shape of magnets can be calculated using our online calculation tool.

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

SM 32x275 [2xM8] / N42 - magnetic separator
Specification/characteristics SM 32x275 [2xM8] / N42 - magnetic separator
properties
values
Cat. no.
130376
GTIN
5906301813248
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
1475 g [±0,1 mm]
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N42

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

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. 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. 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.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. 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.
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.

Strengths and weaknesses of NdFeB magnets.

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

  • Their magnetic field is durable, and after approximately 10 years it decreases only by ~1% (theoretically),
  • They maintain their magnetic properties even under close interference source,
  • A magnet with a metallic gold surface has an effective appearance,
  • The surface of neodymium magnets generates a maximum magnetic field – this is one of their assets,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to the potential of accurate molding and adaptation to unique requirements, NdFeB magnets can be created in a wide range of forms and dimensions, which increases their versatility,
  • Versatile presence in electronics industry – they find application in data components, electric motors, medical devices, and multitasking production systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

What to avoid - cons of neodymium magnets: application proposals

  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Limited ability of producing nuts in the magnet and complex forms - preferred is a housing - mounting mechanism.
  • Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small elements of these devices are able to be problematic in diagnostics medical after entering the body.
  • Due to complex production process, their price is relatively high,

Maximum magnetic pulling forcewhat contributes to it?

The load parameter shown represents the peak performance, recorded under ideal test conditions, meaning:

  • on a base made of mild steel, effectively closing the magnetic field
  • whose thickness reaches at least 10 mm
  • with an ideally smooth contact surface
  • with total lack of distance (without coatings)
  • for force acting at a right angle (in the magnet axis)
  • at room temperature

Determinants of practical lifting force of a magnet

During everyday use, the actual lifting capacity depends on many variables, presented from the most important:

  • Air gap (betwixt the magnet and the plate), as even a very small distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Substrate thickness – for full efficiency, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is high-permeability steel. Hardened steels may attract less.
  • Plate texture – ground elements guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
  • Heat – neodymium magnets have a sensitivity to temperature. When it is hot they lose power, and in frost they can be stronger (up to a certain limit).

* Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. Additionally, even a minimal clearance {between} the magnet’s surface and the plate lowers the holding force.

Safe handling of neodymium magnets

Allergic reactions

Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, refrain from direct skin contact and select coated magnets.

Serious injuries

Large magnets can smash fingers instantly. Under no circumstances place your hand betwixt two strong magnets.

Do not drill into magnets

Powder produced during cutting of magnets is combustible. Avoid drilling into magnets without proper cooling and knowledge.

Safe operation

Exercise caution. Neodymium magnets attract from a distance and connect with massive power, often faster than you can move away.

Danger to the youngest

These products are not toys. Accidental ingestion of several magnets can lead to them attracting across intestines, which poses a direct threat to life and requires urgent medical intervention.

Power loss in heat

Avoid heat. NdFeB magnets are sensitive to temperature. If you require operation above 80°C, ask us about HT versions (H, SH, UH).

Electronic hazard

Very strong magnetic fields can destroy records on credit cards, hard drives, and storage devices. Maintain a gap of min. 10 cm.

Implant safety

Life threat: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Magnets are brittle

Despite the nickel coating, the material is brittle and cannot withstand shocks. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Keep away from electronics

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

Security!

Looking for details? Read our article: Why are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98