tel: +48 888 99 98 98

Strong neodymium magnets: discs and cylinders

Need strong magnetic field? We have in stock wide selection of various shapes and sizes. Perfect for for domestic applications, workshop and industrial tasks. See products available immediately.

discover price list and dimensions

Magnets for underwater searches

Start your adventure related to seabed exploration! Our specialized grips (F200, F400) provide grip certainty and huge lifting capacity. Stainless steel construction and reinforced ropes are reliable in rivers and lakes.

choose your water magnet

Magnetic mounting systems

Proven solutions for mounting without drilling. Threaded grips (external or internal) provide quick improvement of work on production halls. Perfect for mounting lighting, sensors and ads.

check available threads

🚚 Order by 14:00 – we'll ship same day!

Dhit sp. z o.o.
Product available Ships in 3 days

SM 32x100 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130356

GTIN/EAN: 5906301813040

Diameter Ø

32 mm [±1 mm]

Height

100 mm [±1 mm]

Weight

554 g

Magnetic Flux

~ 10 000 Gauss [±5%]

381.30 with VAT / pcs + price for transport

310.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
310.00 ZŁ
381.30 ZŁ
price from 10 pcs
294.50 ZŁ
362.24 ZŁ
price from 15 pcs
279.00 ZŁ
343.17 ZŁ
Not sure about your choice?

Call us +48 888 99 98 98 if you prefer let us know via inquiry form the contact page.
Specifications as well as form of neodymium magnets can be checked on our force calculator.

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

Technical specification - SM 32x100 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x100 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130356
GTIN/EAN 5906301813040
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 32 mm [±1 mm]
Height 100 mm [±1 mm]
Weight 554 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 3 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x100 [2xM8] / N52 - magnetic separator
properties values units
remenance Br [min. - max.] ? 14.2-14.7 kGs
remenance Br [min. - max.] ? 1420-1470 mT
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

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 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Table 1: Rod construction
SM 32x100 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 100 mm (L)
Active length 64 mm
Section count 2 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~611 g
Active area 64 cm² (Area)
Housing material AISI 304 1.4301 (Inox)
Surface finish Ra < 0.8 µm Polished
Temp. class 80°C Standard (N)
Force loss (at max °C) -12.8% Reversible loss (physics)
Force (calculated) 41 kg (theor.)
Induction (surface) ~10 000 Gauss (Max)

Chart 2: Field profile (2 sections)

Chart 3: Temperature performance

Engineering data and GPSR
Material specification
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
Sustainability
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 130356-2025
Magnet Unit Converter
Force (pull)

Magnetic Induction

Other deals

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. 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.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. 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.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. Standard rods (~8000 Gs) are sufficient for catching screws, nails, and steel shavings. 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). The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Pros as well as cons of Nd2Fe14B magnets.

Pros

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • They do not lose power, even over around ten years – the reduction in strength is only ~1% (theoretically),
  • They feature excellent resistance to weakening of magnetic properties due to opposing magnetic fields,
  • A magnet with a metallic gold surface looks better,
  • Magnets have very high magnetic induction on the surface,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the shape) even at high temperatures reaching 230°C or more...
  • Thanks to freedom in shaping and the capacity to modify to individual projects,
  • Significant place in modern technologies – they find application in data components, electromotive mechanisms, precision medical tools, as well as technologically advanced constructions.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which makes them useful in miniature devices

Limitations

Cons of neodymium magnets: application proposals
  • To avoid cracks upon strong impacts, we suggest using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited ability of creating threads in the magnet and complex shapes - recommended is a housing - magnet mounting.
  • Potential hazard to health – tiny shards of magnets are risky, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Holding force characteristics

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

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:
  • using a plate made of high-permeability steel, serving as a magnetic yoke
  • with a cross-section minimum 10 mm
  • characterized by lack of roughness
  • without any air gap between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at ambient temperature room level

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity depends on many variables, listed from the most important:
  • Gap (betwixt the magnet and the plate), because even a tiny distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Plate material – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and holding force.
  • Surface structure – the more even the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Thermal factor – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate decreases the load capacity.

Warnings
Dust is flammable

Fire hazard: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Impact on smartphones

Be aware: neodymium magnets generate a field that disrupts precision electronics. Maintain a safe distance from your phone, tablet, and GPS.

Swallowing risk

Strictly store magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are tragic.

Protective goggles

Despite metallic appearance, the material is brittle and not impact-resistant. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Handling guide

Handle with care. Neodymium magnets attract from a distance and snap with massive power, often quicker than you can move away.

Pacemakers

For implant holders: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or ask another person to work with the magnets.

Bodily injuries

Risk of injury: The pulling power is so great that it can result in blood blisters, crushing, and even bone fractures. Protective gloves are recommended.

Avoid contact if allergic

It is widely known that nickel (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent direct skin contact or choose coated magnets.

Threat to electronics

Equipment safety: Neodymium magnets can ruin data carriers and sensitive devices (heart implants, medical aids, timepieces).

Power loss in heat

Regular neodymium magnets (N-type) lose power when the temperature exceeds 80°C. This process is irreversible.

Important! Looking for details? Read our article: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98