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SMZR 32x125 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140238

GTIN/EAN: 5906301813460

5.00

Diameter Ø

32 mm [±1 mm]

Height

125 mm [±1 mm]

Weight

690 g

Magnetic Flux

~ 10 000 Gauss [±5%]

430.50 with VAT / pcs + price for transport

350.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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Lifting power and appearance of neodymium magnets can be estimated using our force calculator.

Orders placed before 14:00 will be shipped the same business day.

Technical data - SMZR 32x125 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x125 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140238
GTIN/EAN 5906301813460
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 125 mm [±1 mm]
Weight 690 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 4 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SMZR 32x125 / 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 32x125 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 125 mm (L)
Active length 105 mm
Section count 4 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~764 g
Active area 106 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 (4 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: 140238-2026
Measurement Calculator
Force (pull)

Magnetic Field

See more proposals

A manual separator is a basic tool for quick identification and sorting of metals. It allows checking if a given item is ferromagnetic (steel, cast iron) or not (aluminum, copper, stainless steel). It is also useful for pulling small steel elements from crates, ash, sand, or sawdust.
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.
Neodymiums are more compact and effective during all-day work at a scrap yard. 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). 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.
In this model, collected metal must be torn off manually (preferably in a work glove). We also offer versions where pulling the handle automatically drops collected material. The sliding technique is more effective and requires less force than perpendicular tearing.

Pros and cons of rare earth magnets.

Pros

Besides their stability, neodymium magnets are valued for these benefits:
  • They virtually do not lose power, because even after 10 years the decline in efficiency is only ~1% (in laboratory conditions),
  • They possess excellent resistance to magnetism drop when exposed to external magnetic sources,
  • By covering with a decorative coating of silver, the element gains an aesthetic look,
  • Magnetic induction on the working part of the magnet remains impressive,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
  • Thanks to versatility in constructing and the capacity to adapt to unusual requirements,
  • Versatile presence in future technologies – they are used in data components, electric drive systems, diagnostic systems, as well as industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in compact dimensions, which allows their use in miniature devices

Limitations

Cons of neodymium magnets: application proposals
  • 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
  • Neodymium magnets decrease their power 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 durability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Limited possibility of creating threads in the magnet and complicated forms - preferred is casing - magnet mounting.
  • Potential hazard to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these products can be problematic in diagnostics medical after entering the body.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

Breakaway strength of the magnet in ideal conditionswhat affects it?

The declared magnet strength represents the maximum value, obtained under ideal test conditions, specifically:
  • on a block made of mild steel, effectively closing the magnetic field
  • with a cross-section no less than 10 mm
  • with a plane perfectly flat
  • with zero gap (without paint)
  • for force applied at a right angle (in the magnet axis)
  • in stable room temperature

Lifting capacity in real conditions – factors

Real force impacted by working environment parameters, mainly (from most important):
  • Gap (between the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) results in a drastic drop in force by up to 50% (this also applies to varnish, corrosion or dirt).
  • Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Base massiveness – insufficiently thick plate does not accept the full field, causing part of the power to be wasted to the other side.
  • Chemical composition of the base – mild steel gives the best results. Higher carbon content decrease magnetic properties and holding force.
  • Surface finish – ideal contact is possible only on polished steel. Rough texture create air cushions, reducing force.
  • Operating temperature – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and at low temperatures they can be stronger (up to a certain limit).

Lifting capacity testing was conducted on a smooth plate of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Moreover, even a slight gap between the magnet and the plate reduces the holding force.

Safe handling of NdFeB magnets
Beware of splinters

Neodymium magnets are ceramic materials, meaning they are very brittle. Impact of two magnets will cause them cracking into small pieces.

Powerful field

Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Think ahead.

Fire risk

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Compass and GPS

Be aware: rare earth magnets generate a field that disrupts sensitive sensors. Keep a separation from your mobile, tablet, and GPS.

Physical harm

Risk of injury: The attraction force is so immense that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Life threat

Patients with a ICD should maintain an absolute distance from magnets. The magnetic field can disrupt the functioning of the implant.

Allergy Warning

Medical facts indicate that nickel (standard magnet coating) is a potent allergen. If you have an allergy, refrain from touching magnets with bare hands and opt for coated magnets.

Data carriers

Device Safety: Strong magnets can damage data carriers and delicate electronics (pacemakers, medical aids, timepieces).

Thermal limits

Avoid heat. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

This is not a toy

These products are not intended for children. Swallowing several magnets can lead to them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.

Safety First! Want to know more? Check our post: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98