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SM 32x325 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130460

GTIN/EAN: 5906301813316

Diameter Ø

32 mm [±1 mm]

Height

325 mm [±1 mm]

Weight

1800 g

Magnetic Flux

~ 10 000 Gauss [±5%]

1045.50 with VAT / pcs + price for transport

850.00 ZŁ net + 23% VAT / pcs

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Contact us by phone +48 22 499 98 98 otherwise drop us a message through contact form the contact form page.
Force along with structure of a magnet can be reviewed with our force calculator.

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Technical parameters of the product - SM 32x325 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x325 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130460
GTIN/EAN 5906301813316
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 325 mm [±1 mm]
Weight 1800 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 12 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x325 [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 32x325 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 325 mm (L)
Active length 289 mm
Section count 12 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~1986 g
Active area 291 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 (12 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: 130460-2026
Measurement Calculator
Pulling force

Magnetic Field

Other offers

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. Its task is separation (separation) of metal filings from the transported material. 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 center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Thanks to this, the rod is durable, hygienic, and easy to keep clean.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. You can use compressed air or special non-magnetic strippers (rings). For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
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. The rod end is strictly adapted to the fastening system in your device. We ensure fast realization of special orders and technical advice.

Pros and cons of rare earth magnets.

Strengths

Besides their tremendous strength, neodymium magnets offer the following advantages:
  • They retain attractive force for around ten years – the drop is just ~1% (according to analyses),
  • They have excellent resistance to magnetism drop when exposed to opposing magnetic fields,
  • By applying a smooth layer of gold, the element acquires an aesthetic look,
  • They feature high magnetic induction at the operating surface, which increases their power,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures approaching 230°C and above...
  • Due to the potential of precise shaping and adaptation to specialized needs, neodymium magnets can be produced in a wide range of forms and dimensions, which increases their versatility,
  • Key role in innovative solutions – they are utilized in data components, electric motors, medical devices, as well as industrial machines.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Weaknesses

Disadvantages of neodymium magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in producing threads and complex shapes in magnets, we recommend using a housing - magnetic mount.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Highest magnetic holding forcewhat contributes to it?

Information about lifting capacity is the result of a measurement for ideal contact conditions, including:
  • on a plate made of mild steel, optimally conducting the magnetic field
  • with a cross-section of at least 10 mm
  • with an ground contact surface
  • without the slightest clearance between the magnet and steel
  • under vertical application of breakaway force (90-degree angle)
  • at temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

In real-world applications, the actual holding force is determined by a number of factors, ranked from most significant:
  • Clearance – the presence of any layer (paint, tape, gap) interrupts the magnetic circuit, which reduces power rapidly (even by 50% at 0.5 mm).
  • Load vector – maximum parameter is available only during perpendicular pulling. The shear force of the magnet along the surface is typically several times smaller (approx. 1/5 of the lifting capacity).
  • Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Material composition – different alloys attracts identically. High carbon content weaken the attraction effect.
  • Smoothness – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets
Danger to pacemakers

For implant holders: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.

Permanent damage

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.

Cards and drives

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

Allergic reactions

Allergy Notice: The nickel-copper-nickel coating contains nickel. If redness appears, cease working with magnets and wear gloves.

Physical harm

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

Danger to the youngest

Strictly store magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are life-threatening.

Dust explosion hazard

Fire warning: Rare earth powder is explosive. Avoid machining magnets without safety gear as this risks ignition.

Threat to navigation

Note: neodymium magnets generate a field that disrupts precision electronics. Keep a separation from your phone, tablet, and navigation systems.

Risk of cracking

Neodymium magnets are ceramic materials, meaning they are fragile like glass. Impact of two magnets leads to them cracking into small pieces.

Do not underestimate power

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

Security! Learn more about risks in the article: Safety of working with magnets.