Product available Ships today (order by 14:00)

SM 25x175 [2xM8] / N52 - magnetic separator

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500
Rating: 5

magnetic separator

Catalog no 130369

GTIN: 5906301813170

Diameter Ø

25 mm [±1 mm]

Height

175 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 9 500 Gauss [±5%]

541.20 ZŁ with VAT / pcs + price for transport

440.00 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs

440.00 ZŁ

541.20 ZŁ

price from 10 pcs

396.00 ZŁ

487.08 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Not sure what to buy?

Give us a call +48 22 499 98 98 alternatively send us a note through request form our website.
Force and structure of a neodymium magnet can be calculated on our our magnetic calculator.

Same-day processing for orders placed before 14:00.

SM 25x175 [2xM8] / N52 - magnetic separator

Specification / characteristics SM 25x175 [2xM8] / N52 - magnetic separator

properties

properties	values
Cat. no.	130369
GTIN	5906301813170
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	25 mm [±1 mm]
Height	175 mm [±1 mm]
Weight	0.01 g
Material Type	Stainless steel AISI 304 / A2
Magnetic Flux	~ 9 500 Gauss [±5%]
Size/Mount Quantity	2xM8
Polarity	circumferential - 6 poles
Casing Tube Thickness	1 mm
Manufacturing Tolerance	±1 mm

Magnetic properties of material N52

Specification / characteristics SM 25x175 [2xM8] / N52 - magnetic separator

properties	values	units
remenance Br [Min. - Max.] ?	14.2-14.7	kGs
remenance Br [Min. - Max.] ?	1420-1470	T
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

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 106	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10-6	°C^-1
Young's modulus	1.7 x 104	kg/mm²

Quick Unit Converter

Pulling Force

Force in kg

Force (N)

lbs

Field Strength

Gauss (Gs)

Simply complete one field, and the converter calculate everything else for you.

Check out more products

Product available Ships today (order by 14:00)

SM 32x100 [2xM8] / N52 - magnetic separator

381.30 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 10x7x3 / N38 - lamellar magnet

0.849 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

SMZR 32x125 / N52 - magnetic separator with handle

430.50 ZŁ brutto / pcs

Product available Ships today (order by 14:00)

MPL 30x10x5 / N38 - lamellar magnet

4.26 ZŁ brutto / pcs

A magnetic rod is the basic element of building grate separators and magnetic filters. Its task is separation (separation) of metal filings from the transported material. Thanks to the use of strong neodymium magnets, the rod catches even metallic dust.

The construction relies on a sealed, welded stainless steel housing, polished smooth. 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. 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. For basic machine protection against pieces of iron, standard power is sufficient. 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 as well as disadvantages of rare earth magnets.

Strengths

Besides their immense field intensity, neodymium magnets offer the following advantages:

They virtually do not lose strength, because even after ten years the performance loss is only ~1% (according to literature),
They are extremely resistant to demagnetization induced by presence of other magnetic fields,
In other words, due to the metallic finish of silver, the element becomes visually attractive,
Neodymium magnets ensure maximum magnetic induction on a small surface, which increases force concentration,
Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
Thanks to freedom in constructing and the ability to adapt to individual projects,
Huge importance in modern industrial fields – they find application in hard drives, brushless drives, precision medical tools, as well as complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in compact constructions

Weaknesses

Disadvantages of NdFeB magnets:

Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also raises their durability
Neodymium magnets decrease their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We suggest a housing - magnetic holder, due to difficulties in producing threads inside the magnet and complicated forms.
Potential hazard to health – tiny shards of magnets are risky, in case of ingestion, which gains importance in the context of child health protection. Additionally, small elements of these products can disrupt the diagnostic process medical when they are in the body.
With large orders the cost of neodymium magnets is a challenge,

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

Holding force of 0.00 kg is a measurement result performed under specific, ideal conditions:

using a plate made of low-carbon steel, acting as a magnetic yoke
with a thickness no less than 10 mm
characterized by even structure
without the slightest insulating layer between the magnet and steel
under perpendicular application of breakaway force (90-degree angle)
at conditions approx. 20°C

What influences lifting capacity in practice

Effective lifting capacity impacted by specific conditions, such as (from most important):

Gap (betwixt the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, corrosion or dirt).
Direction of force – maximum parameter is reached only during perpendicular pulling. The resistance to sliding of the magnet along the plate is usually many times lower (approx. 1/5 of the lifting capacity).
Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of generating force.
Metal type – not every steel reacts the same. High carbon content worsen the interaction with the magnet.
Surface structure – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Roughness creates an air distance.
Temperature influence – high temperature weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity testing was conducted on plates with a smooth surface of optimal thickness, under a perpendicular pulling force, however under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the load capacity.

H&S for magnets

Do not drill into magnets

Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Life threat

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

Crushing force

Pinching hazard: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Use thick gloves.

Shattering risk

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. We recommend safety glasses.

Do not give to children

Absolutely keep magnets out of reach of children. Choking hazard is significant, and the effects of magnets connecting inside the body are very dangerous.

Heat sensitivity

Standard neodymium magnets (grade N) undergo demagnetization when the temperature goes above 80°C. Damage is permanent.

Data carriers

Equipment safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, medical aids, timepieces).

Powerful field

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

Impact on smartphones

GPS units and mobile phones are extremely susceptible to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Nickel allergy

Nickel alert: The Ni-Cu-Ni coating contains nickel. If an allergic reaction appears, immediately stop handling magnets and wear gloves.

Danger! Want to know more? Read our article: Why are neodymium magnets dangerous?

SM 25x175 [2xM8] / N52 - magnetic separator

Not sure what to buy?

SM 25x175 [2xM8] / N52 - magnetic separator

Magnetic properties of material N52

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Pulling Force

Field Strength

Check out more products

SM 32x100 [2xM8] / N52 - magnetic separator

MPL 10x7x3 / N38 - lamellar magnet

SMZR 32x125 / N52 - magnetic separator with handle

MPL 30x10x5 / N38 - lamellar magnet

Advantages as well as disadvantages of rare earth magnets.

Strengths

Weaknesses

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what it depends on?

What influences lifting capacity in practice

Do not drill into magnets

Life threat

Crushing force

Shattering risk

Do not give to children

Heat sensitivity

Data carriers

Powerful field

Impact on smartphones

Nickel allergy

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C