Neodymiums – complete shape selection

Want to buy really powerful magnets? We offer complete range of disc, cylindrical and ring magnets. Best choice for home use, garage and industrial tasks. Check our offer in stock.

discover magnet catalog

Magnet fishing sets (hobbyists)

Begin your hobby with treasure salvaging! Our double-handle grips (F200, F400) provide grip certainty and huge lifting capacity. Stainless steel construction and strong lines are reliable in rivers and lakes.

find searching equipment

Industrial magnetic grips industrial

Professional solutions for mounting non-invasive. Threaded grips (M8, M10, M12) guarantee quick improvement of work on warehouses. Perfect for mounting lamps, sensors and banners.

see available threads

📦 Fast shipping: buy by 14:00, package goes out today!

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

SM 32x175 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130359

GTIN/EAN: 5906301813071

5.00

Diameter Ø

32 mm [±1 mm]

Height

175 mm [±1 mm]

Weight

970 g

Magnetic Flux

~ 10 000 Gauss [±5%]

602.70 with VAT / pcs + price for transport

490.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
490.00 ZŁ
602.70 ZŁ
price from 10 pcs
441.00 ZŁ
542.43 ZŁ
Looking for a better price?

Call us +48 22 499 98 98 if you prefer get in touch via our online form through our site.
Strength as well as form of magnetic components can be calculated using our our magnetic calculator.

Orders submitted before 14:00 will be dispatched today!

Physical properties - SM 32x175 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x175 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130359
GTIN/EAN 5906301813071
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 175 mm [±1 mm]
Weight 970 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 6 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x175 [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 32x175 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 175 mm (L)
Active length 139 mm
Section count 6 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~1070 g
Active area 140 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 (6 sections)

Chart 3: Temperature performance

Technical specification and ecology
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%
Ecology and recycling (GPSR)
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: 130359-2026
Magnet Unit Converter
Pulling force

Magnetic Field

Other proposals

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. 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. The core is a precise magnetic system generating high induction (Gauss). 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. 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 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. High induction is necessary when contaminants are microscopic or weakly magnetic.
We fulfill individual orders for bars perfectly matched to your machine or separator. 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 as well as disadvantages of neodymium magnets.

Strengths

Apart from their superior magnetic energy, neodymium magnets have these key benefits:
  • They have unchanged lifting capacity, and over around ten years their attraction force decreases symbolically – ~1% (in testing),
  • They maintain their magnetic properties even under close interference source,
  • In other words, due to the glossy finish of gold, the element looks attractive,
  • Neodymium magnets create maximum magnetic induction on a contact point, which allows for strong attraction,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • In view of the ability of free shaping and adaptation to unique requirements, neodymium magnets can be manufactured in a wide range of shapes and sizes, which makes them more universal,
  • Fundamental importance in high-tech industry – they are utilized in mass storage devices, electromotive mechanisms, advanced medical instruments, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in small systems

Cons

Disadvantages of NdFeB magnets:
  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only protects the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • They rust in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing nuts and complicated shapes in magnets, we propose using a housing - magnetic mount.
  • Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
  • Due to complex production process, their price exceeds standard values,

Pull force analysis

Best holding force of the magnet in ideal parameterswhat it depends on?

The force parameter is a measurement result performed under specific, ideal conditions:
  • using a sheet made of mild steel, functioning as a magnetic yoke
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • with a surface cleaned and smooth
  • with direct contact (no coatings)
  • for force applied at a right angle (in the magnet axis)
  • at ambient temperature approx. 20 degrees Celsius

Determinants of practical lifting force of a magnet

It is worth knowing that the application force will differ depending on the following factors, starting with the most relevant:
  • Space between surfaces – every millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Direction of force – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Steel thickness – insufficiently thick steel does not close the flux, causing part of the flux to be wasted into the air.
  • Material type – ideal substrate is pure iron steel. Hardened steels may attract less.
  • Base smoothness – the more even the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
  • Temperature influence – high temperature reduces magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance between the magnet and the plate lowers the holding force.

Safe handling of NdFeB magnets
Demagnetization risk

Do not overheat. Neodymium magnets are susceptible to heat. If you need operation above 80°C, inquire about HT versions (H, SH, UH).

Do not give to children

Absolutely store magnets away from children. Risk of swallowing is significant, and the effects of magnets clamping inside the body are tragic.

Electronic devices

Powerful magnetic fields can destroy records on credit cards, HDDs, and other magnetic media. Stay away of min. 10 cm.

Sensitization to coating

A percentage of the population experience a hypersensitivity to nickel, which is the common plating for neodymium magnets. Frequent touching can result in skin redness. It is best to wear safety gloves.

Serious injuries

Risk of injury: The attraction force is so immense that it can cause hematomas, crushing, and broken bones. Use thick gloves.

Medical interference

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

Do not underestimate power

Handle magnets with awareness. Their huge power can shock even experienced users. Be vigilant and do not underestimate their force.

Compass and GPS

A strong magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Do not bring magnets near a smartphone to prevent breaking the sensors.

Fire warning

Fire hazard: Neodymium dust is explosive. Avoid machining magnets in home conditions as this may cause fire.

Magnets are brittle

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Impact of two magnets will cause them breaking into small pieces.

Attention! Want to know more? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98