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SMZR 32x100 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140237

GTIN/EAN: 5906301813453

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

How we measure these parameters — certificates and measurements

see technical specifications »

300.00 zł net / pcs

369.00 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

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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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Technical specification of the product - SMZR 32x100 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x100 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140237
GTIN/EAN 5906301813453
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 100 mm [±1 mm]
Weight 660 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 3 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SMZR 32x100 / 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 32x100 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 100 mm (L)
Active length 80 mm
Section count 3 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~611 g
Active area 80 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 (3 sections)

Simulation: 3 magnetic modules (pitch 23 mm).

Chart 3: Temperature performance

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%

Sustainability

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: 140237-2026
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It is an essential at every scrap yard, waste sorting plant, and workshop. 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). Lack of reaction (attraction) means the tested item is made of non-magnetic material.
The neodymium model offers powerful force with low weight, which drastically reduces hand fatigue. A lighter tool allows for longer work without wrist and arm pain. This is a modern solution displacing heavy and weak ferrite magnets.
The construction consists of a hermetic can protecting the magnet and an ergonomic handle. A solid handle (wooden, rubber, or plastic) ensures a firm and comfortable grip. The tool is durable, drop-resistant, and prepared for hard work.
In this model, collected metal must be torn off manually (preferably in a work glove). 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.

Pros and cons of rare earth magnets.

Pros

Besides their remarkable pulling force, neodymium magnets offer the following advantages:
  • They retain attractive force for nearly 10 years – the loss is just ~1% (in theory),
  • They feature excellent resistance to weakening of magnetic properties as a result of opposing magnetic fields,
  • In other words, due to the reflective finish of nickel, the element gains visual value,
  • Magnets exhibit very high magnetic induction on the active area,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of individual forming and adapting to specific conditions,
  • Versatile presence in high-tech industry – they are used in mass storage devices, motor assemblies, diagnostic systems, also multitasking production systems.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Limitations

Cons of neodymium magnets and proposals for their use:
  • Brittleness is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 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 immune to moisture, when using outdoors
  • We suggest casing - magnetic holder, due to difficulties in creating threads inside the magnet and complicated shapes.
  • Potential hazard related to microscopic parts of magnets are risky, in case of ingestion, which becomes key in the context of child safety. It is also worth noting that small components of these products can disrupt the diagnostic process medical when they are in the body.
  • High unit price – neodymium magnets have a higher price than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Best holding force of the magnet in ideal parameters – what affects it?

Magnet power is the result of a measurement for optimal configuration, taking into account:
  • with the use of a sheet made of special test steel, ensuring full magnetic saturation
  • with a cross-section of at least 10 mm
  • with an ideally smooth contact surface
  • without the slightest air gap between the magnet and steel
  • under vertical force vector (90-degree angle)
  • in temp. approx. 20°C

Impact of factors on magnetic holding capacity in practice

It is worth knowing that the working load will differ subject to elements below, starting with the most relevant:
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Loading method – catalog parameter refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (often approx. 20-30% of nominal force).
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Plate material – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
  • Surface finish – full contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Thermal environment – temperature increase causes a temporary drop of induction. Check the thermal limit for a given model.

Holding force was measured on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. Additionally, even a minimal clearance between the magnet and the plate decreases the lifting capacity.

Warnings
Heat sensitivity

Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. This process is irreversible.

Magnetic interference

An intense magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Maintain magnets close to a device to avoid breaking the sensors.

Product not for children

Strictly keep magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are tragic.

Finger safety

Pinching hazard: The pulling power is so immense that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Beware of splinters

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

Respect the power

Use magnets consciously. Their immense force can surprise even experienced users. Be vigilant and do not underestimate their force.

Warning for heart patients

Patients with a ICD must keep an large gap from magnets. The magnetism can disrupt the functioning of the implant.

Skin irritation risks

Some people experience a hypersensitivity to Ni, which is the standard coating for neodymium magnets. Prolonged contact can result in dermatitis. We recommend wear safety gloves.

Dust is flammable

Dust produced during cutting of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.

Safe distance

Do not bring magnets near a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

Security! Need more info? Check our post: Why are neodymium magnets dangerous?