Product available Ships tomorrow

SM 32x300 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130459

GTIN/EAN: 5906301813309

Diameter Ø

32 mm [±1 mm]

Height

300 mm [±1 mm]

Weight

1660 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1131.60 with VAT / pcs + price for transport

920.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
920.00 ZŁ
1131.60 ZŁ
price from 5 pcs
828.00 ZŁ
1018.44 ZŁ
Looking for a better price?

Call us +48 888 99 98 98 or send us a note via our online form through our site.
Strength and shape of a neodymium magnet can be verified with our modular calculator.

Order by 14:00 and we’ll ship today!

Detailed specification - SM 32x300 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x300 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130459
GTIN/EAN 5906301813309
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 300 mm [±1 mm]
Weight 1660 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 11 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x300 [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 32x300 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 300 mm (L)
Active length 264 mm
Section count 11 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~1834 g
Active area 265 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 (11 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%
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: 130459-2026
Measurement Calculator
Force (pull)

Magnetic Induction

View also products

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. 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 Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
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. Contact us for a quote on a non-standard dimension.

Pros and cons of neodymium magnets.

Strengths

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They have stable power, and over around ten years their performance decreases symbolically – ~1% (in testing),
  • They show high resistance to demagnetization induced by external field influence,
  • The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnets are characterized by very high magnetic induction on the working surface,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to flexibility in shaping and the capacity to modify to specific needs,
  • Significant place in innovative solutions – they serve a role in magnetic memories, electric drive systems, medical devices, as well as complex engineering applications.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their 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 rust. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We suggest casing - magnetic holder, due to difficulties in realizing threads inside the magnet and complex shapes.
  • Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which is particularly important in the context of child safety. It is also worth noting that small components of these devices are able to be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum holding power of the magnet – what it depends on?

Breakaway force was determined for ideal contact conditions, assuming:
  • with the application of a yoke made of special test steel, guaranteeing maximum field concentration
  • with a thickness no less than 10 mm
  • with an ideally smooth contact surface
  • under conditions of ideal adhesion (metal-to-metal)
  • under axial force direction (90-degree angle)
  • in stable room temperature

Determinants of lifting force in real conditions

Bear in mind that the magnet holding will differ subject to elements below, starting with the most relevant:
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
  • Load vector – highest force is obtained only during perpendicular pulling. The shear force of the magnet along the surface is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Material composition – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
  • Surface finish – full contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
  • Operating temperature – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost they can be stronger (up to a certain limit).

Lifting capacity was measured with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate lowers the holding force.

Safe handling of NdFeB magnets
Heat warning

Standard neodymium magnets (grade N) lose magnetization when the temperature goes above 80°C. The loss of strength is permanent.

Conscious usage

Be careful. Rare earth magnets attract from a long distance and connect with massive power, often faster than you can react.

Avoid contact if allergic

Allergy Notice: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction happens, cease handling magnets and wear gloves.

Choking Hazard

Adult use only. Small elements pose a choking risk, leading to severe trauma. Keep away from kids and pets.

Protective goggles

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

Flammability

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

Electronic hazard

Data protection: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Implant safety

For implant holders: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.

Finger safety

Danger of trauma: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Keep away from electronics

Note: rare earth magnets produce a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, device, and GPS.

Security! Looking for details? Read our article: Are neodymium magnets dangerous?