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SMZR 32x150 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140239

GTIN/EAN: 5906301813477

5.00

Diameter Ø

32 mm [±1 mm]

Height

150 mm [±1 mm]

Weight

935 g

Magnetic Flux

~ 10 000 Gauss [±5%]

492.00 with VAT / pcs + price for transport

400.00 ZŁ net + 23% VAT / pcs

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Technical details - SMZR 32x150 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x150 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140239
GTIN/EAN 5906301813477
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 150 mm [±1 mm]
Weight 935 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 5 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SMZR 32x150 / 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 32x150 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 150 mm (L)
Active length 130 mm
Section count 5 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~917 g
Active area 131 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 (5 sections)

Chart 3: Temperature performance

Technical specification and ecology
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: 140239-2026
Quick Unit Converter
Magnet pull force

Field Strength

See also proposals

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.
The neodymium model offers powerful force with low weight, which drastically reduces hand fatigue. Thanks to this, work is more comfortable, and detection faster and more certain. 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. Tool ergonomics are key with frequent use by employees. Thanks to such an armored build, the separator is resistant to difficult conditions prevailing at a scrap yard.
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. In the case of strong magnets, it is easiest to slide the metal to the side of the housing instead of tearing it straight off.

Strengths and weaknesses of neodymium magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They have stable power, and over around 10 years their attraction force decreases symbolically – ~1% (according to theory),
  • Magnets very well defend themselves against demagnetization caused by foreign field sources,
  • By covering with a smooth layer of silver, the element acquires an proper look,
  • Magnets have maximum 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...
  • Thanks to versatility in forming and the ability to adapt to unusual requirements,
  • Huge importance in future technologies – they are used in data components, electric motors, precision medical tools, also complex engineering applications.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Limitations

Cons of neodymium magnets: tips and applications.
  • Brittleness is one of their disadvantages. Upon intense 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 lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
  • Limited ability of creating nuts in the magnet and complex forms - preferred is cover - magnetic holder.
  • Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Furthermore, small components of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Holding force characteristics

Maximum holding power of the magnet – what contributes to it?

Breakaway force was defined for optimal configuration, assuming:
  • using a plate made of mild steel, serving as a magnetic yoke
  • with a cross-section of at least 10 mm
  • with an ground touching surface
  • with zero gap (no coatings)
  • for force applied at a right angle (pull-off, not shear)
  • at ambient temperature room level

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity is influenced by working environment parameters, including (from priority):
  • Distance – the presence of any layer (rust, tape, gap) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops drastically, often to levels of 20-30% of the maximum value.
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material type – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
  • Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
  • Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Lifting capacity testing was conducted on a smooth plate of suitable thickness, under perpendicular forces, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance between the magnet and the plate decreases the holding force.

Precautions when working with NdFeB magnets
Pacemakers

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Do not approach if you have medical devices.

Caution required

Handle with care. Rare earth magnets attract from a distance and snap with huge force, often quicker than you can move away.

Danger to the youngest

Product intended for adults. Small elements can be swallowed, causing intestinal necrosis. Keep away from children and animals.

Cards and drives

Intense magnetic fields can corrupt files on payment cards, HDDs, and storage devices. Maintain a gap of min. 10 cm.

Demagnetization risk

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

Finger safety

Mind your fingers. Two large magnets will snap together instantly with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

GPS Danger

Remember: neodymium magnets produce a field that confuses precision electronics. Maintain a separation from your mobile, tablet, and GPS.

Material brittleness

Watch out for shards. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. We recommend safety glasses.

Machining danger

Machining of neodymium magnets carries a risk of fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Nickel coating and allergies

Some people experience a contact allergy to Ni, which is the common plating for NdFeB magnets. Frequent touching may cause an allergic reaction. We recommend use protective gloves.

Warning! More info about hazards in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98