tel: +48 888 99 98 98

Neodymiums – wide shape selection

Looking for massive power in small size? We offer rich assortment of disc, cylindrical and ring magnets. They are ideal for home use, garage and industrial tasks. Check our offer with fast shipping.

discover price list and dimensions

Grips for seabed exploration

Discover your passion related to seabed exploration! Our double-handle grips (F200, F400) provide safety guarantee and immense power. Solid, corrosion-resistant housing and strong lines will perform in challenging water conditions.

choose searching equipment

Magnetic solutions for business

Reliable solutions for fixing without drilling. Threaded grips (external or internal) provide quick improvement of work on warehouses. They are indispensable mounting lighting, sensors and ads.

see industrial applications

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

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

SM 32x225 [2xM8] / N42 - magnetic separator

magnetic separator

Catalog no 130375

GTIN/EAN: 5906301813231

Diameter Ø

32 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

1245 g

Magnetic Flux

~ 8 000 Gauss [±5%]

750.30 with VAT / pcs + price for transport

610.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
610.00 ZŁ
750.30 ZŁ
price from 5 pcs
579.50 ZŁ
712.79 ZŁ
price from 10 pcs
549.00 ZŁ
675.27 ZŁ
Hunting for a discount?

Pick up the phone and ask +48 888 99 98 98 otherwise get in touch by means of inquiry form our website.
Specifications along with appearance of a magnet can be checked using our force calculator.

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

Product card - SM 32x225 [2xM8] / N42 - magnetic separator

Specification / characteristics - SM 32x225 [2xM8] / N42 - magnetic separator

properties
properties values
Cat. no. 130375
GTIN/EAN 5906301813231
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 225 mm [±1 mm]
Weight 1245 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 8 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 8 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N42

Specification / characteristics SM 32x225 [2xM8] / N42 - magnetic separator
properties values units
remenance Br [min. - max.] ? 12.9-13.2 kGs
remenance Br [min. - max.] ? 1290-1320 mT
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

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
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: 130375-2025
Magnet Unit Converter
Magnet pull force

Magnetic Field

See also deals

A magnetic rod is the basic element of building grate separators and magnetic filters. It is commonly used for cleaning flour, sugar, plastic granules, as well as oils and coolants. High magnetic induction on the surface allows catching the finest iron particles.
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). 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. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. 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. 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. You can choose a mounting method consistent with your technical design. We ensure fast realization of special orders and technical advice.

Strengths and weaknesses of rare earth magnets.

Benefits

Apart from their notable magnetic energy, neodymium magnets have these key benefits:
  • They retain magnetic properties for nearly ten years – the drop is just ~1% (based on simulations),
  • Neodymium magnets remain exceptionally resistant to demagnetization caused by external field sources,
  • A magnet with a shiny gold surface looks better,
  • The surface of neodymium magnets generates a concentrated magnetic field – this is a distinguishing feature,
  • 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 custom creating as well as adjusting to complex conditions,
  • Universal use in advanced technology sectors – they find application in mass storage devices, electric motors, medical equipment, as well as other advanced devices.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Weaknesses

Disadvantages of NdFeB magnets:
  • To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • We recommend casing - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated shapes.
  • Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the context of child health protection. It is also worth noting that small elements of these magnets are able to be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities

Holding force characteristics

Maximum magnetic pulling forcewhat contributes to it?

Information about lifting capacity is the result of a measurement for optimal configuration, assuming:
  • using a plate made of low-carbon steel, acting as a ideal flux conductor
  • with a cross-section of at least 10 mm
  • characterized by even structure
  • with zero gap (no paint)
  • for force applied at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

Lifting capacity in real conditions – factors

Real force is affected by specific conditions, such as (from priority):
  • Distance – the presence of foreign body (paint, dirt, air) acts as an insulator, which lowers power steeply (even by 50% at 0.5 mm).
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Steel thickness – too thin plate causes magnetic saturation, causing part of the flux to be escaped to the other side.
  • Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
  • Plate texture – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal reduce efficiency.
  • Temperature – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity was measured with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, however under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets
Sensitization to coating

Studies show that nickel (standard magnet coating) is a strong allergen. If you have an allergy, prevent touching magnets with bare hands and choose encased magnets.

GPS and phone interference

Navigation devices and smartphones are highly sensitive to magnetism. Direct contact with a strong magnet can permanently damage the internal compass in your phone.

Implant safety

Health Alert: Neodymium magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Keep away from computers

Equipment safety: Strong magnets can ruin data carriers and sensitive devices (heart implants, medical aids, mechanical watches).

Demagnetization risk

Keep cool. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, look for special high-temperature series (H, SH, UH).

Pinching danger

Risk of injury: The pulling power is so immense that it can result in blood blisters, crushing, and broken bones. Protective gloves are recommended.

Eye protection

Beware of splinters. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Flammability

Fire warning: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

Caution required

Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

No play value

These products are not intended for children. Swallowing a few magnets may result in them attracting across intestines, which constitutes a severe health hazard and requires urgent medical intervention.

Security! Learn more about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98