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neodymium magnets

We provide yellow color magnets Nd2Fe14B - our proposal. All magnesy neodymowe on our website are in stock for immediate purchase (check the list). See the magnet pricing for more details check the magnet price list

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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

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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

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. Its task is separation (separation) of metal filings from the transported material. 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). 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. 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. For basic machine protection against pieces of iron, standard power is sufficient. For the food and precision industry, we recommend the highest induction parameters.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). 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 neodymium magnets.

Besides their high retention, neodymium magnets are valued for these benefits:

  • They do not lose power, even over around 10 years – the drop in strength is only ~1% (according to tests),
  • They retain their magnetic properties even under external field action,
  • The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • They feature high magnetic induction at the operating surface, making them more effective,
  • Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of individual creating as well as modifying to defined applications,
  • Versatile presence in advanced technology sectors – they find application in hard drives, electric drive systems, advanced medical instruments, also modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages of neodymium magnets:

  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution secures the magnet and simultaneously improves its durability.
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in producing threads and complicated forms in magnets, we recommend using casing - magnetic mechanism.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child safety. It is also worth noting that small elements of these devices can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Highest magnetic holding forcewhat it depends on?

The declared magnet strength concerns the peak performance, recorded under optimal environment, specifically:

  • with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • whose transverse dimension reaches at least 10 mm
  • characterized by even structure
  • with total lack of distance (without impurities)
  • for force acting at a right angle (in the magnet axis)
  • at temperature approx. 20 degrees Celsius

Determinants of lifting force in real conditions

Please note that the working load may be lower influenced by the following factors, in order of importance:

  • Distance – existence of any layer (paint, dirt, gap) interrupts the magnetic circuit, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Direction of force – highest force is available only during perpendicular pulling. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Plate material – mild steel attracts best. Higher carbon content decrease magnetic permeability and lifting capacity.
  • Plate texture – smooth surfaces guarantee perfect abutment, which increases force. Uneven metal reduce efficiency.
  • Thermal factor – high temperature weakens pulling force. Too high temperature can permanently damage the magnet.

* Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, whereas under parallel forces the lifting capacity is smaller. In addition, even a small distance {between} the magnet’s surface and the plate reduces the lifting capacity.

Safe handling of neodymium magnets

GPS Danger

Be aware: neodymium magnets produce a field that interferes with precision electronics. Keep a separation from your phone, tablet, and navigation systems.

Hand protection

Large magnets can break fingers instantly. Under no circumstances place your hand between two strong magnets.

Maximum temperature

Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. Damage is permanent.

Respect the power

Handle with care. Neodymium magnets act from a distance and snap with huge force, often quicker than you can react.

Implant safety

Patients with a pacemaker have to keep an safe separation from magnets. The magnetism can disrupt the operation of the life-saving device.

Fragile material

Despite metallic appearance, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Do not drill into magnets

Combustion risk: Rare earth powder is explosive. Do not process magnets in home conditions as this risks ignition.

This is not a toy

Adult use only. Tiny parts can be swallowed, causing serious injuries. Keep away from kids and pets.

Allergic reactions

A percentage of the population suffer from a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Prolonged contact can result in dermatitis. We strongly advise wear protective gloves.

Keep away from computers

Data protection: Strong magnets can ruin payment cards and sensitive devices (heart implants, medical aids, timepieces).

Caution!

Need more info? Check our post: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98