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SMZR 32x200 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140240

GTIN/EAN: 5906301813484

5.00
Diameter Ø
32 mm [±1 mm]
Height
200 mm [±1 mm]
Weight
1210 g
Magnetic Flux
~ 10 000 Gauss [±5%]

How we measure these parameters — certificates and measurements

technical parameters »

570.00 zł net / pcs

701.10 zł with VAT (23% VAT) / pcs

price for transport

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Frequently asked questions

Which rod should I choose for fine contamination?
For particles below 0.5 mm — a Ø32 mm rod in grade N52, with surface induction of about 10,000 Gs. A Ø25 rod in grade N42 gives about 6,500 Gs and is chosen for contamination above 1 mm: bolts, washers, pieces of wire.
Which rod pitch should I choose?
The narrow pitch, 40 mm centre to centre, for fine free-flowing fractions — it gives denser coverage of the cross-section. The wide pitch, 50 mm, for granulates and for damp, greasy or sticky materials, where a narrow pitch risks the material bridging above the rods.
Why does efficiency drop after a few weeks of operation?
Almost always because the separator has not been cleaned. The layer of captured particles shields the field, and further particles settle on that layer rather than on the rod surface, where the gradient is far stronger. The magnets themselves do not weaken at that rate.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Physical properties - SMZR 32x200 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x200 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140240
GTIN/EAN 5906301813484
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 200 mm [±1 mm]
Weight 1210 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 6 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SMZR 32x200 / N52 - magnetic separator with handle
properties values units
Remanence Br ? 14.2-14.7 kGs
Remanence Br ? 1420-1470 mT
Coercivity bHc ? 10.8-12.5 kOe
Coercivity bHc ? 860-995 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 48-53 BH max MGOe
Energy product BHmax ? 380-422 BH max KJ/m
Maximum working 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 310 °C
Curie Temperature TF 590 °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 32x200 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 200 mm (L)
Active length 180 mm
Section count 7 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~1222 g
Active area 181 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 (7 sections)

Simulation: 7 magnetic modules (pitch 23 mm).

Chart 3: Temperature performance

Engineering data and GPSR

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: 140240-2026
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This gripper serves for instant distinction of steel (iron) from non-ferrous metals. 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. If the magnet does not attract the tested element, it is probably non-ferrous metal or acid-resistant steel.
Neodymium separators are much lighter and many times stronger than traditional ferrite ones. A lighter tool allows for longer work without wrist and arm pain. The neodymium version is currently the standard in professional scrap yards.
The neodymium magnet is enclosed in a solid, metal housing (steel or brass). A solid handle (wooden, rubber, or plastic) ensures a firm and comfortable grip. 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. If you are looking for automatic dropping, ask about models with a magnetic release system. The sliding technique is more effective and requires less force than perpendicular tearing.

Pros as well as cons of rare earth magnets.

Pros

Apart from their superior power, neodymium magnets have these key benefits:
  • Their strength remains stable, and after approximately ten years it drops only by ~1% (according to research),
  • They maintain their magnetic properties even under strong external field,
  • The use of an metallic finish of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnets exhibit huge magnetic induction on the outer side,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to the option of precise molding and customization to specialized needs, NdFeB magnets can be manufactured in a variety of shapes and sizes, which makes them more universal,
  • Significant place in future technologies – they are utilized in mass storage devices, drive modules, medical equipment, as well as other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves 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 force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • We suggest casing - magnetic mount, due to difficulties in realizing nuts inside the magnet and complicated forms.
  • Health risk to health – tiny shards of magnets are risky, if swallowed, which becomes key in the context of child health protection. Additionally, tiny parts of these devices can be problematic in diagnostics medical in case of swallowing.
  • Due to complex production process, their price exceeds standard values,

Pull force analysis

Magnetic strength at its maximum – what contributes to it?

Breakaway force was defined for optimal configuration, taking into account:
  • using a base made of low-carbon steel, serving as a circuit closing element
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • with an polished touching surface
  • under conditions of no distance (surface-to-surface)
  • during detachment in a direction perpendicular to the mounting surface
  • at temperature room level

Practical lifting capacity: influencing factors

In practice, the real power depends on several key aspects, presented from crucial:
  • Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
  • Material type – the best choice is pure iron steel. Stainless steels may generate lower lifting capacity.
  • Base smoothness – the smoother and more polished the plate, the better the adhesion and stronger the hold. Roughness creates an air distance.
  • Temperature – heating the magnet results in weakening of induction. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity was measured using a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Safety rules for work with NdFeB magnets
Permanent damage

Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Electronic devices

Very strong magnetic fields can corrupt files on credit cards, hard drives, and storage devices. Keep a distance of at least 10 cm.

Impact on smartphones

A powerful magnetic field interferes with the operation of compasses in phones and navigation systems. Keep magnets close to a smartphone to avoid damaging the sensors.

Conscious usage

Use magnets with awareness. Their powerful strength can surprise even professionals. Plan your moves and do not underestimate their power.

Warning for allergy sufferers

Medical facts indicate that nickel (standard magnet coating) is a strong allergen. If you have an allergy, avoid touching magnets with bare hands and select encased magnets.

ICD Warning

Patients with a pacemaker must keep an safe separation from magnets. The magnetic field can interfere with the operation of the life-saving device.

Crushing risk

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

Eye protection

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Wear goggles.

Keep away from children

Absolutely store magnets away from children. Risk of swallowing is significant, and the effects of magnets connecting inside the body are fatal.

Mechanical processing

Powder generated during machining of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Warning! Need more info? Read our article: Why are neodymium magnets dangerous?