Neodymium magnets: power you're looking for

Need strong magnetic field? Our range includes rich assortment of various shapes and sizes. They are ideal for domestic applications, workshop and model making. Check our offer in stock.

check full offer

Magnet fishing: strong F200/F400 sets

Discover your passion related to seabed exploration! Our specialized grips (F200, F400) provide grip certainty and immense power. Solid, corrosion-resistant housing and strong lines are reliable in any water.

find your water magnet

Magnetic mounting systems

Professional solutions for fixing non-invasive. Threaded grips (M8, M10, M12) guarantee instant organization of work on production halls. They are indispensable installing lamps, sensors and ads.

check industrial applications

🚀 Lightning processing: orders by 14:00 shipped within 24h!

Dhit sp. z o.o.
Product available Ships tomorrow

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

magnetic separator

Catalog no 130461

GTIN/EAN: 5906301813323

Diameter Ø

32 mm [±1 mm]

Height

350 mm [±1 mm]

Weight

1940 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1119.30 with VAT / pcs + price for transport

910.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
910.00 ZŁ
1119.30 ZŁ
price from 5 pcs
819.00 ZŁ
1007.37 ZŁ
Want to negotiate?

Call us +48 888 99 98 98 otherwise send us a note using request form the contact page.
Specifications along with appearance of magnets can be calculated with our magnetic mass calculator.

Orders placed before 14:00 will be shipped the same business day.

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

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

properties
properties values
Cat. no. 130461
GTIN/EAN 5906301813323
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 350 mm [±1 mm]
Weight 1940 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 13 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x350 [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 32x350 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 350 mm (L)
Active length 314 mm
Section count 13 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~2139 g
Active area 316 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 (13 sections)

Chart 3: Temperature performance

Technical and environmental data
Elemental analysis
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: 130461-2025
Quick Unit Converter
Force (pull)

Magnetic Induction

Other products

It is the "heart" of every magnetic filter used in industry for cleaning raw materials. 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 construction relies on a sealed, welded stainless steel housing, polished smooth. 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 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. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
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 induction is necessary when contaminants are microscopic or weakly magnetic.
We fulfill individual orders for bars perfectly matched to your machine or separator. The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Pros and cons of rare earth magnets.

Strengths

Apart from their consistent holding force, neodymium magnets have these key benefits:
  • They virtually do not lose strength, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
  • They maintain their magnetic properties even under close interference source,
  • Thanks to the glossy finish, the coating of Ni-Cu-Ni, gold-plated, or silver-plated gives an clean appearance,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a key feature,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Possibility of accurate machining as well as adjusting to concrete conditions,
  • Huge importance in innovative solutions – they are utilized in magnetic memories, drive modules, diagnostic systems, also modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which allows their use in miniature devices

Disadvantages

Cons of neodymium magnets: application proposals
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • They rust in a humid environment - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating nuts and complex shapes in magnets, we recommend using cover - magnetic holder.
  • Potential hazard to health – tiny shards of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, small components of these products can complicate diagnosis medical when they are in the body.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

The force parameter is a result of laboratory testing conducted under the following configuration:
  • using a plate made of mild steel, functioning as a magnetic yoke
  • whose transverse dimension reaches at least 10 mm
  • characterized by lack of roughness
  • without any insulating layer between the magnet and steel
  • under vertical application of breakaway force (90-degree angle)
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

During everyday use, the real power depends on many variables, presented from crucial:
  • Clearance – the presence of any layer (rust, tape, air) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to detachment vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of maximum force).
  • Plate thickness – insufficiently thick steel does not accept the full field, causing part of the flux to be lost to the other side.
  • Plate material – low-carbon steel attracts best. Alloy steels lower magnetic permeability and lifting capacity.
  • Smoothness – full contact is obtained only on polished steel. Rough texture create air cushions, weakening the magnet.
  • Thermal environment – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under attempts to slide the magnet the load capacity is reduced by as much as 5 times. In addition, even a small distance between the magnet and the plate decreases the lifting capacity.

H&S for magnets
Do not drill into magnets

Fire hazard: Rare earth powder is highly flammable. Avoid machining magnets in home conditions as this may cause fire.

Avoid contact if allergic

Some people suffer from a sensitization to nickel, which is the common plating for neodymium magnets. Frequent touching might lead to an allergic reaction. It is best to wear safety gloves.

Eye protection

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Compass and GPS

Note: neodymium magnets generate a field that disrupts precision electronics. Keep a safe distance from your phone, device, and GPS.

Thermal limits

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Cards and drives

Powerful magnetic fields can corrupt files on payment cards, HDDs, and other magnetic media. Maintain a gap of min. 10 cm.

Life threat

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Crushing risk

Protect your hands. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying anything in their path. Be careful!

Conscious usage

Exercise caution. Rare earth magnets attract from a distance and snap with huge force, often faster than you can react.

This is not a toy

NdFeB magnets are not intended for children. Eating several magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates urgent medical intervention.

Important! Looking for details? Check our post: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98