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SM 32x150 [2xM8] / N42 - magnetic separator

magnetic separator

Catalog no 130297

GTIN/EAN: 5906301812906

5.00

Diameter Ø

32 mm [±1 mm]

Height

150 mm [±1 mm]

Weight

804 g

Magnetic Flux

~ 8 000 Gauss [±5%]

455.10 with VAT / pcs + price for transport

370.00 ZŁ net + 23% VAT / pcs

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Data sheet - SM 32x150 [2xM8] / N42 - magnetic separator

Specification / characteristics - SM 32x150 [2xM8] / N42 - magnetic separator

properties
properties values
Cat. no. 130297
GTIN/EAN 5906301812906
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 150 mm [±1 mm]
Weight 804 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 8 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 5 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N42

Specification / characteristics SM 32x150 [2xM8] / N42 - magnetic separator
properties values units
remenance Br [min. - max.] ? 12.9-13.2 kGs
remenance Br [min. - max.] ? 1290-1320 mT
coercivity bHc ? 10.8-12.0 kOe
coercivity bHc ? 860-955 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 40-42 BH max MGOe
energy density [min. - max.] ? 318-334 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
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: 130297-2025
Magnet Unit Converter
Pulling force

Magnetic Field

Other products

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. 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 construction relies on a sealed, welded stainless steel housing, polished smooth. Inside there is a stack of strong neodymium magnets arranged in a special configuration (magnetic circuit). 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.
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. High induction is necessary when contaminants are microscopic or weakly magnetic.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). 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 neodymium magnets.

Pros

Besides their tremendous field intensity, neodymium magnets offer the following advantages:
  • They have stable power, and over more than 10 years their performance decreases symbolically – ~1% (in testing),
  • Magnets very well resist against demagnetization caused by foreign field sources,
  • A magnet with a smooth silver surface is more attractive,
  • Magnetic induction on the surface of the magnet remains maximum,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Thanks to modularity in constructing and the capacity to adapt to unusual requirements,
  • Significant place in innovative solutions – they find application in HDD drives, electric motors, medical devices, and complex engineering applications.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Cons

Problematic aspects of neodymium magnets: application proposals
  • At very strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation and corrosion.
  • Limited ability of creating nuts in the magnet and complex shapes - recommended is a housing - magnetic holder.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which gains importance in the context of child safety. Furthermore, tiny parts of these magnets can complicate diagnosis medical in case of swallowing.
  • With budget limitations the cost of neodymium magnets can be a barrier,

Pull force analysis

Highest magnetic holding forcewhat it depends on?

Information about lifting capacity is the result of a measurement for optimal configuration, taking into account:
  • with the use of a yoke made of low-carbon steel, ensuring full magnetic saturation
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • with a plane cleaned and smooth
  • under conditions of no distance (metal-to-metal)
  • during pulling in a direction perpendicular to the plane
  • at room temperature

Determinants of practical lifting force of a magnet

Please note that the magnet holding will differ depending on the following factors, in order of importance:
  • Gap between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Load vector – highest force is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the plate is typically many times lower (approx. 1/5 of the lifting capacity).
  • Steel thickness – too thin plate does not close the flux, causing part of the power to be lost into the air.
  • Steel grade – ideal substrate is pure iron steel. Hardened steels may attract less.
  • Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
  • Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.

Lifting capacity was determined using a smooth steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate reduces the lifting capacity.

Safety rules for work with neodymium magnets
Danger to the youngest

NdFeB magnets are not suitable for play. Eating multiple magnets may result in them attracting across intestines, which poses a critical condition and requires urgent medical intervention.

Dust explosion hazard

Combustion risk: Rare earth powder is explosive. Avoid machining magnets in home conditions as this risks ignition.

Allergy Warning

A percentage of the population experience a contact allergy to nickel, which is the common plating for NdFeB magnets. Extended handling may cause a rash. It is best to wear safety gloves.

Compass and GPS

Be aware: rare earth magnets produce a field that interferes with sensitive sensors. Keep a safe distance from your mobile, tablet, and navigation systems.

Physical harm

Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, crushing anything in their path. Be careful!

Data carriers

Powerful magnetic fields can erase data on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Maximum temperature

Avoid heat. NdFeB magnets are sensitive to heat. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Safe operation

Before starting, check safety instructions. Uncontrolled attraction can destroy the magnet or injure your hand. Think ahead.

Eye protection

Protect your eyes. Magnets can explode upon uncontrolled impact, launching sharp fragments into the air. Eye protection is mandatory.

Warning for heart patients

Medical warning: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Safety First! Learn more about risks in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98