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SM 25x350 [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 130355

GTIN/EAN: 5906301813033

Diameter Ø

25 mm [±1 mm]

Height

350 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 9 500 Gauss [±5%]

1057.80 ZŁ with VAT / pcs + price for transport

860.00 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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SM 25x350 [2xM8] / N52 - magnetic separator

Specification / characteristics SM 25x350 [2xM8] / N52 - magnetic separator

properties

properties	values
Cat. no.	130355
GTIN/EAN	5906301813033
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	350 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 - 13 poles
Casing Tube Thickness	1 mm
Manufacturing Tolerance	±1 mm

Magnetic properties of material N52

Specification / characteristics SM 25x350 [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

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

Technical and environmental data

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%

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: 130355-2025

Magnet Unit Converter

Magnet pull force

Force in kg

Newtons (N)

Pounds (lbs)

Field Strength

Induction (Gs)

Induction (T)

Input your value in just one slot to generate results for all other fields at once.

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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). Thanks to this, the rod is durable, hygienic, and easy to keep clean.

Metal filings stick to the surface very strongly, so cleaning requires strength or cleverness. You can use compressed air or special non-magnetic strippers (rings). For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.

The Gauss value tells us how effectively and deeply the magnet will catch contaminants. The economical version (8kGs) handles large pieces of metal perfectly. For the food and precision industry, we recommend the highest induction parameters.

We can produce a rod of non-standard length with any mounting termination. The rod end is strictly adapted to the fastening system in your device. Contact us for a quote on a non-standard dimension.

Pros and cons of Nd₂Fe₁₄B magnets.

Strengths

Apart from their notable magnetic energy, neodymium magnets have these key benefits:

They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
They do not lose their magnetic properties even under strong external field,
A magnet with a shiny gold surface has better aesthetics,
Magnetic induction on the top side of the magnet remains maximum,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
Due to the ability of free forming and adaptation to unique projects, magnetic components can be modeled in a wide range of shapes and sizes, which amplifies use scope,
Fundamental importance in electronics industry – they are commonly used in magnetic memories, drive modules, advanced medical instruments, and other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which makes them useful in small systems

Cons

Disadvantages of neodymium magnets:

To avoid cracks under impact, we suggest using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of power (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
When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which prevent oxidation as well as corrosion.
Due to limitations in creating threads and complex shapes in magnets, we recommend using casing - magnetic mount.
Possible danger 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 components of these products are able to complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

The force parameter is a result of laboratory testing conducted under specific, ideal conditions:

using a plate made of low-carbon steel, acting as a ideal flux conductor
with a thickness no less than 10 mm
with a plane free of scratches
with direct contact (without coatings)
for force applied at a right angle (in the magnet axis)
at room temperature

Key elements affecting lifting force

Effective lifting capacity impacted by working environment parameters, including (from most important):

Distance (betwixt the magnet and the metal), because even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in force by up to 50% (this also applies to varnish, corrosion or debris).
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (typically approx. 20-30% of nominal force).
Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux penetrates through instead of converting into lifting capacity.
Steel grade – ideal substrate is pure iron steel. Stainless steels may attract less.
Surface finish – full contact is possible only on smooth steel. Rough texture reduce the real contact area, reducing force.
Thermal environment – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Holding force was tested on the plate surface of 20 mm thickness, when a perpendicular force was applied, however under parallel forces the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet’s surface and the plate decreases the holding force.

Safety rules for work with neodymium magnets

Skin irritation risks

Studies show that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, avoid direct skin contact and choose versions in plastic housing.

No play value

Product intended for adults. Small elements can be swallowed, leading to intestinal necrosis. Store away from children and animals.

Combustion hazard

Dust generated during cutting of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Respect the power

Before use, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Thermal limits

Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.

Bone fractures

Danger of trauma: The pulling power is so immense that it can cause hematomas, pinching, and broken bones. Use thick gloves.

Cards and drives

Do not bring magnets near a wallet, computer, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Keep away from electronics

A strong magnetic field interferes with the functioning of compasses in smartphones and navigation systems. Do not bring magnets near a device to avoid damaging the sensors.

Life threat

People with a ICD should keep an large gap from magnets. The magnetic field can interfere with the functioning of the life-saving device.

Protective goggles

Beware of splinters. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Security! Learn more about risks in the article: Safety of working with magnets.

SM 25x350 [2xM8] / N52 - magnetic separator

Can't decide what to choose?

SM 25x350 [2xM8] / N52 - magnetic separator

Magnetic properties of material N52

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Field Strength

Other products

SM 18x250 [2xM5] / N42 - magnetic separator

KM HF - 22 kg - magnetic bracket

MW 12x1 / N38 - cylindrical magnet

SMZR 32x175 / N52 - magnetic separator with handle

Pros and cons of Nd2Fe14B magnets.

Strengths

Cons

Lifting parameters

Best holding force of the magnet in ideal parameters – what it depends on?

Key elements affecting lifting force

Skin irritation risks

No play value

Combustion hazard

Respect the power

Thermal limits

Bone fractures

Cards and drives

Keep away from electronics

Life threat

Protective goggles

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Pros and cons of Nd₂Fe₁₄B magnets.