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neodymium magnets

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

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SM 32x350 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130461

GTIN: 5906301813323

0

Diameter Ø [±0,1 mm]

32 mm

Height [±0,1 mm]

350 mm

Weight

1940 g

1119.30 with VAT / pcs + price for transport

910.00 ZŁ net + 23% VAT / pcs

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SM 32x350 [2xM8] / N52 - magnetic separator
Specification/characteristics SM 32x350 [2xM8] / N52 - magnetic separator
properties
values
Cat. no.
130461
GTIN
5906301813323
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
32 mm [±0,1 mm]
Height
350 mm [±0,1 mm]
Weight
1940 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

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. It is commonly used for cleaning flour, sugar, plastic granules, as well as oils and coolants. Thanks to the use of strong neodymium magnets, the rod catches even metallic dust.
The rod consists of a cover tube made of high-quality acid-resistant steel (AISI 304 or 316). 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 filings stick to the surface very strongly, so cleaning requires strength or cleverness. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
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.
We can produce a rod of non-standard length with any mounting termination. We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat pivots, mills, or handles. We ensure fast realization of special orders and technical advice.

Advantages and disadvantages of NdFeB magnets.

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

  • They have stable power, and over nearly ten years their attraction force decreases symbolically – ~1% (in testing),
  • Magnets very well defend themselves against loss of magnetization caused by foreign field sources,
  • Thanks to the smooth finish, the surface of Ni-Cu-Ni, gold-plated, or silver-plated gives an professional appearance,
  • Magnetic induction on the working part of the magnet remains exceptional,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to flexibility in designing and the ability to customize to specific needs,
  • Huge importance in innovative solutions – they are utilized in mass storage devices, brushless drives, medical equipment, and other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in miniature devices

Disadvantages of neodymium magnets:

  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
  • Due to limitations in creating nuts and complex forms in magnets, we recommend using casing - magnetic holder.
  • Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the context of child safety. Furthermore, small elements of these devices are able to be problematic in diagnostics medical in case of swallowing.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which hinders application in large quantities

Detachment force of the magnet in optimal conditionswhat affects it?

The lifting capacity listed is a theoretical maximum value executed under the following configuration:

  • with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • possessing a massiveness of min. 10 mm to avoid saturation
  • characterized by even structure
  • without the slightest air gap between the magnet and steel
  • under perpendicular force vector (90-degree angle)
  • at temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

It is worth knowing that the magnet holding will differ depending on elements below, starting with the most relevant:

  • Distance (betwixt the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, corrosion or debris).
  • Angle of force application – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material type – the best choice is high-permeability steel. Stainless steels may generate lower lifting capacity.
  • Surface quality – the more even the plate, the better the adhesion and stronger the hold. Unevenness acts like micro-gaps.
  • Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently demagnetize the magnet.

* Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, in contrast under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap {between} the magnet and the plate reduces the holding force.

Safe handling of NdFeB magnets

Choking Hazard

Adult use only. Tiny parts can be swallowed, leading to intestinal necrosis. Store out of reach of children and animals.

Allergic reactions

It is widely known that nickel (the usual finish) is a strong allergen. If you have an allergy, avoid direct skin contact and opt for versions in plastic housing.

Safe distance

Do not bring magnets near a wallet, computer, or TV. The magnetism can permanently damage these devices and wipe information from cards.

Physical harm

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

Fire risk

Dust created during machining of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Danger to pacemakers

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have medical devices.

Thermal limits

Watch the temperature. Exposing the magnet to high heat will ruin its properties and pulling force.

Beware of splinters

NdFeB magnets are ceramic materials, meaning they are very brittle. Impact of two magnets leads to them breaking into small pieces.

Handling guide

Use magnets consciously. Their powerful strength can shock even experienced users. Plan your moves and respect their power.

Threat to navigation

A strong magnetic field negatively affects the functioning of compasses in phones and GPS navigation. Maintain magnets close to a smartphone to avoid damaging the sensors.

Important!

Need more info? Read our article: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98