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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%]

541.20 with VAT / pcs + price for transport

440.00 zł net + 23% VAT / pcs

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Product card - 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

Technical specification and ecology

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%

Environmental data

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: 130356-2026
Measurement Calculator

Magnet pull force


Magnetic Field

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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. 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 core is a precise magnetic system generating high induction (Gauss). Such construction ensures full resistance to corrosion, water, oils, and acids.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. 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.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. 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. Contact us for a quote on a non-standard dimension.

Strengths and weaknesses of rare earth magnets.

Pros

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (according to literature),
  • They retain their magnetic properties even under close interference source,
  • The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Neodymium magnets deliver maximum magnetic induction on a small area, which allows for strong attraction,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to freedom in designing and the ability to adapt to unusual requirements,
  • Huge importance in electronics industry – they are commonly used in data components, brushless drives, precision medical tools, also modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which makes them useful in small systems

Limitations

What to avoid - cons of neodymium magnets and ways of using them
  • At very strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets lose strength when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (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 very resistant to heat
  • They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • We recommend casing - magnetic holder, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Potential hazard resulting from small fragments of magnets are risky, if swallowed, which gains importance in the context of child safety. Additionally, tiny parts of these products are able to complicate diagnosis medical in case of swallowing.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

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

The force parameter is a theoretical maximum value performed under specific, ideal conditions:
  • with the application of a sheet made of low-carbon steel, guaranteeing maximum field concentration
  • whose thickness is min. 10 mm
  • with a plane cleaned and smooth
  • under conditions of ideal adhesion (metal-to-metal)
  • during pulling in a direction perpendicular to the plane
  • at ambient temperature room level

Lifting capacity in real conditions – factors

Holding efficiency is influenced by specific conditions, mainly (from most important):
  • Space between magnet and steel – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Loading method – declared lifting capacity refers to pulling vertically. When slipping, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Plate thickness – insufficiently thick plate does not close the flux, causing part of the power to be escaped to the other side.
  • Metal type – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
  • Surface structure – the more even the plate, the better the adhesion and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Thermal environment – temperature increase results in weakening of force. It is worth remembering the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet’s surface and the plate reduces the lifting capacity.

Precautions when working with neodymium magnets
Bodily injuries

Protect your hands. Two large magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Risk of cracking

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

Heat warning

Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and strength.

Avoid contact if allergic

Medical facts indicate that nickel (standard magnet coating) is a common allergen. If you have an allergy, avoid direct skin contact or select coated magnets.

Danger to the youngest

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Store away from children and animals.

Medical implants

Patients with a pacemaker must keep an absolute distance from magnets. The magnetic field can disrupt the operation of the life-saving device.

Precision electronics

A strong magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Keep magnets close to a smartphone to avoid breaking the sensors.

Protect data

Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, mechanical watches).

Combustion hazard

Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Conscious usage

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

Caution! More info about risks in the article: Safety of working with magnets.