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Begin your hobby with treasure salvaging! Our specialized grips (F200, F400) provide safety guarantee and huge lifting capacity. Solid, corrosion-resistant housing and strong lines are reliable in challenging water conditions.

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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

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Specifications and form of neodymium magnets can be estimated using our magnetic mass calculator.

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Technical specification - 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
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%
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: 140238-2026
Measurement Calculator
Magnet pull force

Field Strength

Other proposals

This gripper serves for instant distinction of steel (iron) from non-ferrous metals. It enables effective segregation of materials in the yard and accepting goods. It is also useful for pulling small steel elements from crates, ash, sand, or sawdust.
A neodymium magnet attracts only ferromagnetic metals, such as ordinary steel (black) and cast iron. 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 neodymium magnet is enclosed in a solid, metal housing (steel or brass). A solid handle (wooden, rubber, or plastic) ensures a firm and comfortable grip. 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). If you are looking for automatic dropping, ask about models with a magnetic release system. The sliding technique is more effective and requires less force than perpendicular tearing.

Pros as well as cons of Nd2Fe14B magnets.

Pros

Besides their tremendous pulling force, neodymium magnets offer the following advantages:
  • They do not lose magnetism, even over approximately ten years – the drop in strength is only ~1% (according to tests),
  • Magnets effectively defend themselves against demagnetization caused by ambient magnetic noise,
  • Thanks to the reflective finish, the surface of nickel, gold, or silver gives an aesthetic appearance,
  • Magnetic induction on the surface of the magnet is exceptional,
  • Neodymium magnets are characterized by very 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 detailed forming and adapting to defined needs,
  • Key role in innovative solutions – they serve a role in data components, drive modules, diagnostic systems, also multitasking production systems.
  • Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in miniature devices

Cons

Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
  • NdFeB magnets lose force when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are extremely resistant to heat
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • We recommend cover - magnetic mount, due to difficulties in producing threads inside the magnet and complicated shapes.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the context of child safety. Additionally, tiny parts of these products can be problematic in diagnostics medical in case of swallowing.
  • Due to complex production process, their price exceeds standard values,

Lifting parameters

Maximum lifting capacity of the magnetwhat it depends on?

Information about lifting capacity was determined for the most favorable conditions, including:
  • using a base made of low-carbon steel, serving as a magnetic yoke
  • with a thickness minimum 10 mm
  • with a surface perfectly flat
  • under conditions of gap-free contact (metal-to-metal)
  • for force applied at a right angle (pull-off, not shear)
  • in stable room temperature

What influences lifting capacity in practice

Real force is influenced by working environment parameters, including (from priority):
  • Clearance – the presence of foreign body (rust, dirt, gap) acts as an insulator, which reduces power steeply (even by 50% at 0.5 mm).
  • Load vector – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is usually several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Metal type – different alloys attracts identically. Alloy additives weaken the interaction with the magnet.
  • Smoothness – ideal contact is possible only on smooth steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Thermal environment – temperature increase results in weakening of induction. It is worth remembering the thermal limit for a given model.

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. In addition, even a slight gap between the magnet’s surface and the plate lowers the load capacity.

H&S for magnets
Electronic devices

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

Do not underestimate power

Exercise caution. Neodymium magnets act from a long distance and connect with massive power, often quicker than you can move away.

Threat to navigation

A powerful magnetic field negatively affects the functioning of magnetometers in smartphones and GPS navigation. Do not bring magnets close to a smartphone to avoid breaking the sensors.

Maximum temperature

Do not overheat. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Allergic reactions

A percentage of the population experience a contact allergy to nickel, which is the common plating for NdFeB magnets. Extended handling can result in an allergic reaction. It is best to use protective gloves.

Eye protection

Despite the nickel coating, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into hazardous fragments.

Do not give to children

Only for adults. Small elements pose a choking risk, causing serious injuries. Store out of reach of children and animals.

Do not drill into magnets

Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Medical implants

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Bodily injuries

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

Danger! Learn more about risks in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98