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SM 32x250 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130362

GTIN/EAN: 5906301813101

Diameter Ø

32 mm [±1 mm]

Height

250 mm [±1 mm]

Weight

1285 g

Magnetic Flux

~ 10 000 Gauss [±5%]

824.10 with VAT / pcs + price for transport

670.00 ZŁ net + 23% VAT / pcs

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Product card - SM 32x250 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x250 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130362
GTIN/EAN 5906301813101
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 250 mm [±1 mm]
Weight 1285 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 9 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x250 [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
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: 130362-2025
Measurement Calculator
Pulling force

Magnetic Induction

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It is the "heart" of every magnetic filter used in industry for cleaning raw materials. 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 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. 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. The economical version (8kGs) handles large pieces of metal perfectly. High Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
We can produce a rod of non-standard length with any mounting termination. The rod end is strictly adapted to the fastening system in your device. We ensure fast realization of special orders and technical advice.

Pros as well as cons of neodymium magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:
  • They do not lose strength, even during approximately 10 years – the decrease in strength is only ~1% (according to tests),
  • They do not lose their magnetic properties even under close interference source,
  • In other words, due to the smooth layer of gold, the element is aesthetically pleasing,
  • The surface of neodymium magnets generates a maximum magnetic field – this is a key feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal resistance, allowing for functioning at temperatures reaching 230°C and above...
  • Considering the ability of precise shaping and adaptation to specialized needs, neodymium magnets can be modeled in a broad palette of geometric configurations, which expands the range of possible applications,
  • Universal use in high-tech industry – they are utilized in HDD drives, electric drive systems, advanced medical instruments, and modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in tiny dimensions, which enables their usage in miniature devices

Weaknesses

Disadvantages of neodymium magnets:
  • At strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape as well as 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Limited ability of producing nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
  • Potential hazard related to microscopic parts of magnets are risky, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these products can complicate diagnosis medical when they are in the body.
  • Due to complex production process, their price is higher than average,

Holding force characteristics

Maximum lifting force for a neodymium magnet – what affects it?

The specified lifting capacity concerns the peak performance, obtained under ideal test conditions, meaning:
  • using a plate made of mild steel, acting as a circuit closing element
  • with a thickness of at least 10 mm
  • characterized by even structure
  • under conditions of ideal adhesion (metal-to-metal)
  • for force acting at a right angle (pull-off, not shear)
  • at conditions approx. 20°C

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the working load will differ influenced by elements below, in order of importance:
  • Gap (between the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to varnish, corrosion or dirt).
  • Load vector – maximum parameter 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).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Steel grade – ideal substrate is pure iron steel. Hardened steels may attract less.
  • Surface finish – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Heat – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and in frost gain strength (up to a certain limit).

Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, whereas under parallel forces the holding force is lower. In addition, even a small distance between the magnet’s surface and the plate decreases the lifting capacity.

H&S for magnets
Keep away from electronics

Be aware: rare earth magnets produce a field that confuses precision electronics. Maintain a safe distance from your mobile, device, and navigation systems.

Safe operation

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Bodily injuries

Big blocks can smash fingers in a fraction of a second. Under no circumstances place your hand betwixt two strong magnets.

Fire warning

Powder generated during cutting of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Product not for children

Neodymium magnets are not toys. Swallowing several magnets may result in them pinching intestinal walls, which constitutes a critical condition and necessitates immediate surgery.

Avoid contact if allergic

Some people experience a hypersensitivity to Ni, which is the common plating for NdFeB magnets. Prolonged contact might lead to dermatitis. We strongly advise wear protective gloves.

Magnets are brittle

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

Medical interference

Medical warning: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Safe distance

Do not bring magnets close to a wallet, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

Maximum temperature

Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Caution! Want to know more? Read our article: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98