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SMZR 32x250 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140469

GTIN/EAN: 5906301813538

5.00

Diameter Ø

32 mm [±1 mm]

Height

250 mm [±1 mm]

Weight

1490 g

Magnetic Flux

~ 10 000 Gauss [±5%]

738.00 with VAT / pcs + price for transport

600.00 ZŁ net + 23% VAT / pcs

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Strength along with appearance of a neodymium magnet can be analyzed on our force calculator.

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Technical specification - SMZR 32x250 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x250 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140469
GTIN/EAN 5906301813538
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 1490 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 8 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SMZR 32x250 / N52 - magnetic separator with handle
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
SMZR 32x250 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 250 mm (L)
Active length 230 mm
Section count 10 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~1528 g
Active area 231 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 (10 sections)

Chart 3: Temperature performance

Technical and environmental data
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%
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: 140469-2026
Magnet Unit Converter
Magnet pull force

Magnetic Induction

Other offers

It is an essential at every scrap yard, waste sorting plant, and workshop. It allows checking if a given item is ferromagnetic (steel, cast iron) or not (aluminum, copper, stainless steel). It can be used to collect scattered nails and screws from hard-to-reach places.
The magnet "catches" iron but remains completely indifferent to aluminum, copper, brass, and zinc. This is the simplest and fastest test to distinguish valuable non-ferrous metals from cheap steel.
Neodymium separators are much lighter and many times stronger than traditional ferrite ones. Strong neodymium field detects even weakly magnetic alloys and contaminants. This is a modern solution displacing heavy and weak ferrite magnets.
The neodymium magnet is enclosed in a solid, metal housing (steel or brass). The grip was designed so as not to slip in the hand, even in a work glove. Thanks to such an armored build, the separator is resistant to difficult conditions prevailing at a scrap yard.
It is a simple and reliable construction without moving parts, so cleaning consists of removing scrap. Models with a release lever (so-called grippers with a dropper) are also available in another category. The sliding technique is more effective and requires less force than perpendicular tearing.

Advantages and disadvantages of neodymium magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:
  • They have constant strength, and over more than ten years their performance decreases symbolically – ~1% (in testing),
  • They retain their magnetic properties even under strong external field,
  • The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnetic induction on the working part of the magnet turns out to be very high,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of precise machining as well as adjusting to atypical needs,
  • Significant place in modern technologies – they are used in magnetic memories, electromotive mechanisms, medical devices, and other advanced devices.
  • Thanks to their power density, small magnets offer high operating force, with minimal size,

Disadvantages

Disadvantages of NdFeB magnets:
  • At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (a factor is the shape and 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
  • Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in realizing nuts and complicated shapes in magnets, we propose using cover - magnetic mount.
  • Possible danger related to microscopic parts of magnets are risky, if swallowed, which is particularly important in the context of child health protection. Additionally, small elements of these products are able to disrupt the diagnostic process medical when they are in the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Lifting parameters

Maximum lifting capacity of the magnetwhat affects it?

Information about lifting capacity is the result of a measurement for optimal configuration, taking into account:
  • using a plate made of low-carbon steel, acting as a circuit closing element
  • with a cross-section minimum 10 mm
  • with a plane free of scratches
  • under conditions of ideal adhesion (surface-to-surface)
  • for force acting at a right angle (pull-off, not shear)
  • in stable room temperature

Lifting capacity in practice – influencing factors

During everyday use, the real power depends on several key aspects, presented from crucial:
  • Distance (between the magnet and the plate), since even a tiny clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to paint, corrosion or debris).
  • Load vector – highest force is obtained only during perpendicular pulling. The force required to slide of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
  • Plate material – low-carbon steel attracts best. Alloy admixtures lower magnetic permeability and holding force.
  • Smoothness – full contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Heat – neodymium magnets have a sensitivity to temperature. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity testing was performed on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as 5 times. Additionally, even a small distance between the magnet’s surface and the plate lowers the load capacity.

H&S for magnets
Safe operation

Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Demagnetization risk

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

Serious injuries

Risk of injury: The attraction force is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Impact on smartphones

Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Keep a separation from your phone, tablet, and navigation systems.

Threat to electronics

Powerful magnetic fields can erase data on credit cards, hard drives, and storage devices. Stay away of min. 10 cm.

Nickel coating and allergies

Medical facts indicate that the nickel plating (standard magnet coating) is a potent allergen. If your skin reacts to metals, prevent direct skin contact and choose coated magnets.

Implant safety

For implant holders: Strong magnetic fields affect medical devices. Keep at least 30 cm distance or request help to handle the magnets.

Eye protection

Neodymium magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets will cause them cracking into shards.

Fire warning

Fire hazard: Neodymium dust is explosive. Do not process magnets without safety gear as this risks ignition.

Adults only

These products are not intended for children. Accidental ingestion of several magnets may result in them connecting inside the digestive tract, which constitutes a critical condition and necessitates urgent medical intervention.

Caution! Looking for details? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98