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SMZR 32x225 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140468

GTIN/EAN: 5906301813521

5.00

Diameter Ø

32 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

1245 g

Magnetic Flux

~ 10 000 Gauss [±5%]

676.50 with VAT / pcs + price for transport

550.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
550.00 ZŁ
676.50 ZŁ
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484.00 ZŁ
595.32 ZŁ
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Lifting power as well as structure of neodymium magnets can be checked using our online calculation tool.

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Product card - SMZR 32x225 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x225 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140468
GTIN/EAN 5906301813521
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 225 mm [±1 mm]
Weight 1245 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 7 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SMZR 32x225 / 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 32x225 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 225 mm (L)
Active length 205 mm
Section count 8 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~1375 g
Active area 206 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 (8 sections)

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: 140468-2025
Magnet Unit Converter
Force (pull)

Magnetic Induction

Other offers

A manual separator is a basic tool for quick identification and sorting of metals. It enables effective segregation of materials in the yard and accepting goods. It can be used to collect scattered nails and screws from hard-to-reach places.
The tool reacts to carbon steel but does not attract most stainless steels (austenitic, like AISI 304). 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. Thanks to this, work is more comfortable, and detection faster and more certain. The neodymium version is currently the standard in professional scrap yards.
The construction consists of a hermetic can protecting the magnet and an ergonomic handle. The grip was designed so as not to slip in the hand, even in a work glove. The tool is durable, drop-resistant, and prepared for hard work.
Standard manual separators (such as SMZR 32x225 / N52) do not have a release mechanism and require manual cleaning. 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.

Advantages

Besides their stability, neodymium magnets are valued for these benefits:
  • They retain attractive force for nearly ten years – the loss is just ~1% (based on simulations),
  • They do not lose their magnetic properties even under external field action,
  • In other words, due to the metallic layer of gold, the element is aesthetically pleasing,
  • Neodymium magnets generate maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Possibility of individual forming and adjusting to defined requirements,
  • Versatile presence in advanced technology sectors – they find application in hard drives, drive modules, precision medical tools, and other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which allows their use in miniature devices

Cons

Drawbacks and weaknesses of neodymium magnets: weaknesses and usage proposals
  • Brittleness is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
  • When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material immune to moisture, when using outdoors
  • Due to limitations in producing nuts and complicated shapes in magnets, we recommend using cover - magnetic holder.
  • Possible danger to health – tiny shards of magnets pose a threat, if swallowed, which becomes key in the context of child safety. It is also worth noting that tiny parts of these devices are able to be problematic in diagnostics medical after entering the body.
  • Due to neodymium price, their price is relatively high,

Pull force analysis

Maximum magnetic pulling forcewhat it depends on?

Magnet power was defined for optimal configuration, assuming:
  • with the application of a yoke made of special test steel, guaranteeing maximum field concentration
  • possessing a thickness of minimum 10 mm to avoid saturation
  • characterized by smoothness
  • without any insulating layer between the magnet and steel
  • under axial application of breakaway force (90-degree angle)
  • at conditions approx. 20°C

Impact of factors on magnetic holding capacity in practice

Bear in mind that the application force will differ influenced by the following factors, starting with the most relevant:
  • Distance (betwixt the magnet and the metal), since even a microscopic distance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to paint, rust or debris).
  • Force direction – remember that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Chemical composition of the base – low-carbon steel gives the best results. Alloy admixtures lower magnetic permeability and lifting capacity.
  • Base smoothness – the smoother and more polished the surface, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
  • Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was performed on a smooth plate of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Precautions when working with neodymium magnets
Pinching danger

Large magnets can crush fingers in a fraction of a second. Never put your hand between two attracting surfaces.

Handling rules

Before use, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.

Permanent damage

Standard neodymium magnets (grade N) lose power when the temperature surpasses 80°C. Damage is permanent.

Do not drill into magnets

Fire warning: Rare earth powder is highly flammable. Do not process magnets in home conditions as this risks ignition.

Keep away from electronics

Note: rare earth magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your phone, device, and navigation systems.

Health Danger

Life threat: Strong magnets can turn off heart devices and defibrillators. Stay away if you have electronic implants.

Skin irritation risks

Warning for allergy sufferers: The Ni-Cu-Ni coating consists of nickel. If an allergic reaction occurs, cease handling magnets and use protective gear.

Magnetic media

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can destroy these devices and erase data from cards.

No play value

Absolutely store magnets away from children. Choking hazard is significant, and the consequences of magnets connecting inside the body are very dangerous.

Protective goggles

Neodymium magnets are ceramic materials, meaning they are prone to chipping. Clashing of two magnets will cause them shattering into shards.

Danger! Want to know more? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98