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SMZR 32x175 / N52 - magnetic separator with handle

magnetic separator with handle

Catalog no 140445

GTIN/EAN: 5906301813514

5.00

Diameter Ø

32 mm [±1 mm]

Height

175 mm [±1 mm]

Weight

1070 g

Magnetic Flux

~ 10 000 Gauss [±5%]

553.50 with VAT / pcs + price for transport

450.00 ZŁ net + 23% VAT / pcs

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Technical of the product - SMZR 32x175 / N52 - magnetic separator with handle

Specification / characteristics - SMZR 32x175 / N52 - magnetic separator with handle

properties
properties values
Cat. no. 140445
GTIN/EAN 5906301813514
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 175 mm [±1 mm]
Weight 1070 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 32x175 / 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 32x175 / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 175 mm (L)
Active length 155 mm
Section count 6 modules
Dead zone 20 mm (Blaszka 2mm + Gwint 18mm)
Weight (est.) ~1070 g
Active area 156 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 (6 sections)

Chart 3: Temperature performance

Engineering data and GPSR
Chemical composition
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: 140445-2026
Measurement Calculator
Magnet pull force

Field Strength

Other products

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 is also useful for pulling small steel elements from crates, ash, sand, or sawdust.
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. This is a modern solution displacing heavy and weak ferrite magnets.
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. 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. 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 as well as cons of rare earth magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:
  • They retain full power for almost 10 years – the drop is just ~1% (according to analyses),
  • They are extremely resistant to demagnetization induced by external magnetic fields,
  • The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnetic induction on the working part of the magnet is strong,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Due to the option of accurate shaping and adaptation to specialized projects, NdFeB magnets can be manufactured in a variety of shapes and sizes, which increases their versatility,
  • Key role in electronics industry – they are commonly used in hard drives, electromotive mechanisms, medical equipment, as well as modern systems.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages

What to avoid - cons of neodymium magnets and ways of using them
  • At very strong impacts they can crack, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing threads and complex shapes in magnets, we propose using casing - magnetic mechanism.
  • Potential hazard related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these devices can be problematic in diagnostics 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 lifting capacity of the magnetwhat affects it?

Information about lifting capacity was defined for optimal configuration, including:
  • on a block made of structural steel, optimally conducting the magnetic field
  • possessing a thickness of min. 10 mm to avoid saturation
  • characterized by smoothness
  • with direct contact (without paint)
  • for force applied at a right angle (pull-off, not shear)
  • at ambient temperature approx. 20 degrees Celsius

What influences lifting capacity in practice

Effective lifting capacity impacted by specific conditions, such as (from most important):
  • Space between magnet and steel – every millimeter of distance (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – catalog parameter refers to detachment vertically. When slipping, the magnet exhibits much less (typically approx. 20-30% of nominal force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel grade – ideal substrate is pure iron steel. Cast iron may have worse magnetic properties.
  • Surface condition – ground elements guarantee perfect abutment, which increases field saturation. Rough surfaces weaken the grip.
  • Thermal environment – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of optimal thickness, under perpendicular forces, however under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet’s surface and the plate decreases the holding force.

Safety rules for work with neodymium magnets
Do not underestimate power

Handle magnets consciously. Their huge power can shock even experienced users. Be vigilant and do not underestimate their force.

Bodily injuries

Risk of injury: The attraction force is so immense that it can result in blood blisters, pinching, and even bone fractures. Protective gloves are recommended.

Material brittleness

Neodymium magnets are ceramic materials, which means they are fragile like glass. Collision of two magnets leads to them cracking into shards.

Dust explosion hazard

Drilling and cutting of neodymium magnets poses a fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.

Nickel coating and allergies

It is widely known that nickel (the usual finish) is a strong allergen. For allergy sufferers, prevent touching magnets with bare hands and select coated magnets.

Operating temperature

Standard neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. This process is irreversible.

Phone sensors

Remember: neodymium magnets generate a field that interferes with sensitive sensors. Keep a safe distance from your mobile, device, and navigation systems.

Choking Hazard

Neodymium magnets are not intended for children. Swallowing several magnets may result in them pinching intestinal walls, which poses a direct threat to life and requires immediate surgery.

Implant safety

Warning for patients: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to work with the magnets.

Electronic hazard

Very strong magnetic fields can erase data on payment cards, HDDs, and storage devices. Stay away of min. 10 cm.

Attention! Details about risks in the article: Safety of working with magnets.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98