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SM 32x275 [2xM8] / N52 - magnetic separator

magnetic separator

Catalog no 130458

GTIN/EAN: 5906301813293

Diameter Ø

32 mm [±1 mm]

Height

275 mm [±1 mm]

Weight

1520 g

Magnetic Flux

~ 10 000 Gauss [±5%]

897.90 with VAT / pcs + price for transport

730.00 ZŁ net + 23% VAT / pcs

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Lifting power along with form of neodymium magnets can be calculated on our force calculator.

Orders placed before 14:00 will be shipped the same business day.

Physical properties - SM 32x275 [2xM8] / N52 - magnetic separator

Specification / characteristics - SM 32x275 [2xM8] / N52 - magnetic separator

properties
properties values
Cat. no. 130458
GTIN/EAN 5906301813293
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 275 mm [±1 mm]
Weight 1520 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 10 000 Gauss [±5%]
Size/Mount Quantity 2xM8
Polarity circumferential - 10 poles
Casing Tube Thickness 1 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N52

Specification / characteristics SM 32x275 [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 32x275 [2xM8] / N52

Parameter Value Description / Unit
Diameter (Ø) 32 mm
Total length 275 mm (L)
Active length 239 mm
Section count 10 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~1681 g
Active area 240 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 (10 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: 130458-2026
Magnet Unit Converter
Magnet pull force

Magnetic Induction

Other proposals

This product serves to effectively catch ferromagnetic contaminants from bulk and liquid products. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. 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.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. The most effective home method is using adhesive tape, which we wrap around the dirt and peel off. In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.
The more Gauss, the smaller and more weakly magnetic particles will be effectively caught. The economical version (8kGs) handles large pieces of metal perfectly. For the food and precision industry, we recommend the highest induction parameters.
Yes, as a manufacturer, we make rods of any length and diameter (standard is dia 25mm and 32mm). The rod end is strictly adapted to the fastening system in your device. We ensure fast realization of special orders and technical advice.

Advantages and disadvantages of Nd2Fe14B magnets.

Strengths

Besides their stability, neodymium magnets are valued for these benefits:
  • Their magnetic field is durable, and after around ten years it drops only by ~1% (theoretically),
  • Neodymium magnets remain extremely resistant to demagnetization caused by external interference,
  • A magnet with a smooth nickel surface has better aesthetics,
  • Magnets exhibit very high magnetic induction on the working surface,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to freedom in forming and the ability to customize to client solutions,
  • Versatile presence in electronics industry – they serve a role in magnetic memories, electromotive mechanisms, diagnostic systems, and complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer high power in compact dimensions, which enables their usage in miniature devices

Cons

What to avoid - cons of neodymium magnets and ways of using them
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets experience a drop in power. 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 - during use outdoors we advise using waterproof magnets e.g. in rubber, plastic
  • Limited ability of producing nuts in the magnet and complicated shapes - recommended is cover - magnet mounting.
  • Health risk resulting from small fragments of magnets are risky, in case of ingestion, which is particularly important in the context of child health protection. Additionally, small elements of these products are able to be problematic in diagnostics medical when they are in the body.
  • With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum lifting capacity of the magnetwhat it depends on?

The specified lifting capacity refers to the peak performance, recorded under laboratory conditions, namely:
  • on a block made of structural steel, perfectly concentrating the magnetic flux
  • whose transverse dimension reaches at least 10 mm
  • with a plane perfectly flat
  • with zero gap (no impurities)
  • during pulling in a direction perpendicular to the mounting surface
  • at room temperature

What influences lifting capacity in practice

In practice, the real power results from several key aspects, presented from most significant:
  • Distance (between the magnet and the metal), because even a microscopic distance (e.g. 0.5 mm) leads to a decrease in force by up to 50% (this also applies to paint, rust or dirt).
  • Load vector – maximum parameter is obtained only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
  • Element thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet limits the attraction force (the magnet "punches through" it).
  • Material composition – not every steel reacts the same. Alloy additives weaken the interaction with the magnet.
  • Base smoothness – the smoother and more polished the plate, the larger the contact zone and stronger the hold. Roughness acts like micro-gaps.
  • Temperature – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, however under attempts to slide the magnet the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the holding force.

Safety rules for work with NdFeB magnets
Permanent damage

Control the heat. Heating the magnet to high heat will ruin its magnetic structure and pulling force.

Flammability

Powder produced during cutting of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

GPS Danger

Remember: rare earth magnets generate a field that confuses sensitive sensors. Maintain a separation from your phone, device, and navigation systems.

Nickel allergy

A percentage of the population suffer from a contact allergy to Ni, which is the common plating for neodymium magnets. Frequent touching might lead to an allergic reaction. We recommend wear protective gloves.

Protective goggles

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.

This is not a toy

Product intended for adults. Tiny parts pose a choking risk, causing severe trauma. Keep away from kids and pets.

Crushing risk

Protect your hands. Two powerful magnets will snap together instantly with a force of massive weight, destroying anything in their path. Be careful!

Caution required

Be careful. Rare earth magnets act from a long distance and connect with massive power, often faster than you can move away.

Threat to electronics

Do not bring magnets near a wallet, computer, or TV. The magnetism can permanently damage these devices and erase data from cards.

Health Danger

For implant holders: Strong magnetic fields disrupt medical devices. Maintain minimum 30 cm distance or request help to handle the magnets.

Caution! More info about hazards in the article: Magnet Safety Guide.
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98