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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%]

technical parameters »

1119.30 ZŁ with VAT / pcs + price for transport

910.00 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety
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Pick up the phone and ask +48 888 99 98 98 otherwise let us know using contact form through our site.
Weight and form of a neodymium magnet can be tested on our online calculation tool.

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Technical - 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)
Max T = 80°C. Construction data for M8/M10 thread series.

Chart 2: Field profile (13 sections)

Simulation: 13 magnetic modules (pitch 23 mm).

Chart 3: Temperature performance

Technical and environmental data
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%
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: 130461-2026
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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. High magnetic induction on the surface allows catching the finest iron particles.
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.
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. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
The Gauss value tells us how effectively and deeply the magnet will catch contaminants. 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. Contact us for a quote on a non-standard dimension.

Advantages and disadvantages of rare earth magnets.

Pros

Besides their stability, neodymium magnets are valued for these benefits:
  • They have stable power, and over more than ten years their performance decreases symbolically – ~1% (according to theory),
  • They feature excellent resistance to magnetism drop when exposed to external magnetic sources,
  • Thanks to the glossy finish, the layer of Ni-Cu-Ni, gold, or silver-plated gives an professional appearance,
  • Magnets have impressive magnetic induction on the surface,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Due to the ability of accurate molding and adaptation to unique needs, NdFeB magnets can be manufactured in a wide range of forms and dimensions, which expands the range of possible applications,
  • Wide application in future technologies – they are commonly used in data components, electric drive systems, diagnostic systems, and technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of neodymium magnets:
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in a protective case. Such protection not only shields the magnet but also increases its resistance to damage
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest 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
  • We suggest casing - magnetic mechanism, due to difficulties in creating threads inside the magnet and complex shapes.
  • Potential hazard resulting from small fragments of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Pull force analysis

Magnetic strength at its maximum – what affects it?

The specified lifting capacity represents the limit force, measured under laboratory conditions, meaning:
  • using a base made of mild steel, functioning as a magnetic yoke
  • with a thickness of at least 10 mm
  • with a surface free of scratches
  • with direct contact (no paint)
  • for force acting at a right angle (pull-off, not shear)
  • at ambient temperature room level

Key elements affecting lifting force

In real-world applications, the real power results from several key aspects, presented from the most important:
  • Gap (between the magnet and the metal), as even a microscopic clearance (e.g. 0.5 mm) can cause a decrease in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
  • Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
  • Steel thickness – too thin plate does not close the flux, causing part of the power to be lost to the other side.
  • Steel grade – ideal substrate is high-permeability steel. Cast iron may attract less.
  • Smoothness – full contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
  • Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was measured using a polished steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, in contrast under parallel forces the holding force is lower. Moreover, even a small distance between the magnet and the plate decreases the lifting capacity.

Safety rules for work with NdFeB magnets
Material brittleness

Watch out for shards. Magnets can explode upon uncontrolled impact, ejecting shards into the air. We recommend safety glasses.

Nickel coating and allergies

Certain individuals experience a contact allergy to Ni, which is the common plating for neodymium magnets. Extended handling might lead to dermatitis. We strongly advise use safety gloves.

Powerful field

Handle magnets consciously. Their powerful strength can surprise even professionals. Be vigilant and respect their force.

Flammability

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Cards and drives

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, timepieces).

Adults only

Absolutely keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are fatal.

Thermal limits

Avoid heat. NdFeB magnets are susceptible to heat. If you require resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

Finger safety

Risk of injury: The pulling power is so great that it can result in hematomas, pinching, and even bone fractures. Use thick gloves.

ICD Warning

Individuals with a pacemaker have to keep an safe separation from magnets. The magnetic field can stop the functioning of the life-saving device.

Phone sensors

GPS units and smartphones are highly susceptible to magnetism. Direct contact with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Attention! Details about hazards in the article: Magnet Safety Guide.