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SM 32x225 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130361

GTIN/EAN: 5906301813095

Diameter Ø

32 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

1205 g

Magnetic Flux

~ 10 000 Gauss [±5%]

676.50 with VAT / pcs + price for transport

550.00 ZŁ net + 23% VAT / pcs

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Lifting power along with form of magnetic components can be estimated using our magnetic calculator.

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Technical data of the product - SM 32x225 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x225 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130361
GTIN/EAN 5906301813095
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 225 mm [±1 mm]
Weight 1205 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 8 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x225 [2xM8] / N52 - magnetic separator
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
SM 32x225 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 225 mm (L)
Active length 189 mm
Section count 8 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~1375 g
Active area 190 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 (8 sections)

Chart 3: Temperature performance

Technical specification and ecology
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: 130361-2026
Magnet Unit Converter
Magnet pull force

Field Strength

Other proposals

A magnetic rod is the basic element of building grate separators and magnetic filters. It is commonly used for cleaning flour, sugar, plastic granules, as well as oils and coolants. High magnetic induction on the surface allows catching the finest iron particles.
The outer layer is hygienic acid-resistant steel, approved for food contact. The core is a precise magnetic system generating high induction (Gauss). Such construction ensures full resistance to corrosion, water, oils, and acids.
Due to the high power of the magnet, direct removal of filings can be troublesome and time-consuming. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
Magnetic induction measured in Gauss (Gs) determines the density of magnetic flux on the rod surface. The economical version (8kGs) handles large pieces of metal perfectly. High induction is necessary when contaminants are microscopic or weakly magnetic.
We can produce a rod of non-standard length with any mounting termination. We offer various tip options: threaded holes (e.g., M8, M10), protruding screws, flat pivots, mills, or handles. Contact us for a quote on a non-standard dimension.

Strengths and weaknesses of Nd2Fe14B magnets.

Advantages

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),
  • Neodymium magnets prove to be remarkably resistant to loss of magnetic properties caused by magnetic disturbances,
  • The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Neodymium magnets create maximum magnetic induction on a small area, which ensures high operational effectiveness,
  • Thanks to resistance to high temperature, they are capable of working (depending on the shape) even at temperatures up to 230°C and higher...
  • Thanks to the potential of free forming and customization to specialized requirements, magnetic components can be modeled in a broad palette of forms and dimensions, which expands the range of possible applications,
  • Wide application in modern industrial fields – they find application in mass storage devices, drive modules, advanced medical instruments, also industrial machines.
  • Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in compact dimensions, which makes them useful in compact constructions

Disadvantages

Disadvantages of neodymium magnets:
  • Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only protects them against impacts but also increases their durability
  • We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • They oxidize in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of producing threads in the magnet and complex forms - preferred is cover - magnet mounting.
  • Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which gains importance in the context of child safety. Furthermore, tiny parts of these devices are able to disrupt the diagnostic process medical when they are in the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

The lifting capacity listed is a theoretical maximum value conducted under standard conditions:
  • using a sheet made of mild steel, acting as a circuit closing element
  • whose transverse dimension reaches at least 10 mm
  • with an polished contact surface
  • without the slightest insulating layer between the magnet and steel
  • during pulling in a direction perpendicular to the mounting surface
  • in neutral thermal conditions

Lifting capacity in real conditions – factors

Effective lifting capacity is affected by specific conditions, mainly (from most important):
  • Distance (betwixt the magnet and the metal), as even a very small clearance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
  • Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of maximum force).
  • Plate thickness – insufficiently thick sheet does not close the flux, causing part of the flux to be wasted to the other side.
  • Plate material – mild steel gives the best results. Alloy admixtures decrease magnetic properties and lifting capacity.
  • Surface finish – ideal contact is obtained only on polished steel. Any scratches and bumps reduce the real contact area, reducing force.
  • Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they lose power, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was determined by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, whereas under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet and the plate reduces the holding force.

H&S for magnets
Handling rules

Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.

Risk of cracking

NdFeB magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them shattering into shards.

Nickel coating and allergies

Certain individuals suffer from a contact allergy to Ni, which is the standard coating for NdFeB magnets. Frequent touching can result in a rash. We strongly advise wear protective gloves.

Bone fractures

Mind your fingers. Two large magnets will join immediately with a force of massive weight, crushing everything in their path. Exercise extreme caution!

Electronic devices

Avoid bringing magnets close to a purse, computer, or screen. The magnetic field can permanently damage these devices and erase data from cards.

Permanent damage

Watch the temperature. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Medical implants

For implant holders: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.

Adults only

Absolutely keep magnets away from children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are very dangerous.

GPS and phone interference

GPS units and smartphones are extremely sensitive to magnetism. Direct contact with a powerful NdFeB magnet can permanently damage the sensors in your phone.

Fire risk

Drilling and cutting of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Danger! Looking for details? Read our article: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98