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SM 32x100 [2xM8] / N42 - magnetic separator

magnetic separator

Catalog no 130296

GTIN/EAN: 5906301812890

Diameter Ø

32 mm [±1 mm]

Height

100 mm [±1 mm]

Weight

536 g

Magnetic Flux

~ 8 000 Gauss [±5%]

307.50 with VAT / pcs + price for transport

250.00 ZŁ net + 23% VAT / pcs

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Technical of the product - SM 32x100 [2xM8] / N42 - magnetic separator

Specification / characteristics - SM 32x100 [2xM8] / N42 - magnetic separator

properties
properties values
Cat. no. 130296
GTIN/EAN 5906301812890
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 100 mm [±1 mm]
Weight 536 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 8 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 3 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N42

Specification / characteristics SM 32x100 [2xM8] / N42 - magnetic separator
properties values units
remenance Br [min. - max.] ? 12.9-13.2 kGs
remenance Br [min. - max.] ? 1290-1320 mT
coercivity bHc ? 10.8-12.0 kOe
coercivity bHc ? 860-955 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 40-42 BH max MGOe
energy density [min. - max.] ? 318-334 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 32x100 [2xM8] / N42

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 100 mm (L)
Active length 64 mm
Section count 2 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~611 g
Active area 64 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) 26.2 kg (theor.)
Induction (surface) ~8 000 Gauss (Max)

Chart 2: Field profile (2 sections)

Chart 3: Temperature performance

Engineering data and GPSR
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: 130296-2026
Measurement Calculator
Force (pull)

Magnetic Induction

View also products

A magnetic rod is the basic element of building grate separators and magnetic filters. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. Thanks to the use of strong neodymium magnets, the rod catches even metallic dust.
The rod consists of a cover tube made of high-quality acid-resistant steel (AISI 304 or 316). The center is filled with NdFeB magnets and pole pieces, arranged to maximize the field on the tube surface. Such construction ensures full resistance to corrosion, water, oils, and acids.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. 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 Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
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. We ensure fast realization of special orders and technical advice.

Pros as well as cons of neodymium magnets.

Pros

Besides their remarkable field intensity, neodymium magnets offer the following advantages:
  • They virtually do not lose power, because even after 10 years the performance loss is only ~1% (in laboratory conditions),
  • They feature excellent resistance to magnetism drop as a result of external magnetic sources,
  • The use of an aesthetic layer of noble metals (nickel, gold, silver) causes the element to look better,
  • Magnetic induction on the working layer of the magnet turns out to be exceptional,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, allowing for operation at temperatures approaching 230°C and above...
  • Possibility of individual creating and optimizing to defined requirements,
  • Versatile presence in future technologies – they are commonly used in mass storage devices, electric motors, advanced medical instruments, as well as complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in small systems

Cons

Problematic aspects of neodymium magnets: tips and applications.
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can fracture. We advise keeping them in a steel housing, which not only protects them against impacts but also raises their durability
  • We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Limited ability of producing nuts in the magnet and complex shapes - recommended is cover - mounting mechanism.
  • Health risk 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 devices 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

Pull force analysis

Optimal lifting capacity of a neodymium magnetwhat affects it?

The specified lifting capacity represents the maximum value, measured under ideal test conditions, namely:
  • with the application of a yoke made of low-carbon steel, guaranteeing full magnetic saturation
  • possessing a thickness of min. 10 mm to avoid saturation
  • with a surface perfectly flat
  • under conditions of no distance (surface-to-surface)
  • during pulling in a direction vertical to the mounting surface
  • in neutral thermal conditions

Practical lifting capacity: influencing factors

Please note that the application force may be lower depending on elements below, starting with the most relevant:
  • Space between surfaces – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
  • Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
  • Plate texture – ground elements ensure maximum contact, which increases force. Rough surfaces weaken the grip.
  • Temperature – temperature increase results in weakening of force. It is worth remembering the thermal limit for a given model.

Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate reduces the load capacity.

Warnings
Product not for children

Neodymium magnets are not intended for children. Eating a few magnets may result in them attracting across intestines, which poses a severe health hazard and necessitates immediate surgery.

Do not underestimate power

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Permanent damage

Monitor thermal conditions. Exposing the magnet to high heat will ruin its magnetic structure and pulling force.

Warning for heart patients

Patients with a heart stimulator have to keep an safe separation from magnets. The magnetic field can interfere with the operation of the implant.

Magnet fragility

Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Compass and GPS

Remember: neodymium magnets generate a field that confuses precision electronics. Keep a separation from your phone, tablet, and navigation systems.

Allergic reactions

Certain individuals experience a hypersensitivity to Ni, which is the common plating for neodymium magnets. Prolonged contact may cause dermatitis. We recommend use safety gloves.

Combustion hazard

Dust created during machining of magnets is combustible. Do not drill into magnets unless you are an expert.

Serious injuries

Pinching hazard: The attraction force is so immense that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Electronic hazard

Avoid bringing magnets close to a wallet, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Warning! Need more info? Check our post: Are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98