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SM 18x275 [2xM5] / N42 - 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 130276

GTIN: 5906301812784

5.00

Diameter Ø

18 mm [±1 mm]

Height

275 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 5 400 Gauss [±5%]

608.85 ZŁ with VAT / pcs + price for transport

495.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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495.00 ZŁ

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547.97 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

Need advice?

Give us a call +48 22 499 98 98 otherwise let us know using request form the contact page.
Lifting power along with form of neodymium magnets can be verified with our our magnetic calculator.

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

SM 18x275 [2xM5] / N42 - magnetic separator

Specification / characteristics SM 18x275 [2xM5] / N42 - magnetic separator

properties

properties	values
Cat. no.	130276
GTIN	5906301812784
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	18 mm [±1 mm]
Height	275 mm [±1 mm]
Weight	0.01 g
Material Type	Stainless steel AISI 304 / A2
Magnetic Flux	~ 5 400 Gauss [±5%]
Size/Mount Quantity	2xM5
Polarity	circumferential - 12 poles
Casing Tube Thickness	1 mm
Manufacturing Tolerance	±1 mm

Magnetic properties of material N42

Specification / characteristics SM 18x275 [2xM5] / N42 - magnetic separator

properties	values	units
remenance Br [Min. - Max.] ?	12.9-13.2	kGs
remenance Br [Min. - Max.] ?	1290-1320	T
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

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

Measurement Calculator

Pulling Force

Force in kg

Newtons (N)

Force in lbs

Magnetic Induction

Induction (Gs)

Tesla (T)

Simply populate one field, and the tool calculate the rest for you.

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It is the "heart" of every magnetic filter used in industry for cleaning raw materials. 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 rod consists of a cover tube made of high-quality acid-resistant steel (AISI 304 or 316). Inside there is a stack of strong neodymium magnets arranged in a special configuration (magnetic circuit). 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.

The Gauss value tells us how effectively and deeply the magnet will catch contaminants. Standard rods (~8000 Gs) are sufficient for catching screws, nails, and steel shavings. For the food and precision industry, we recommend the highest induction parameters.

We fulfill individual orders for bars perfectly matched to your machine or separator. 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 and cons of Nd₂Fe₁₄B magnets.

Benefits

Besides their high retention, neodymium magnets are valued for these benefits:

They have stable power, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
Neodymium magnets remain exceptionally resistant to magnetic field loss caused by magnetic disturbances,
The use of an shiny coating of noble metals (nickel, gold, silver) causes the element to present itself better,
Magnetic induction on the working part of the magnet remains maximum,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
Possibility of exact shaping and adjusting to individual requirements,
Universal use in high-tech industry – they are utilized in HDD drives, drive modules, diagnostic systems, as well as multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which allows their use in small systems

Cons

Drawbacks and weaknesses of neodymium magnets and proposals for their use:

At strong impacts they can break, therefore we advise placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size and 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 suggest using waterproof magnets e.g. in rubber, plastic
Due to limitations in realizing nuts and complicated forms in magnets, we recommend using cover - magnetic mechanism.
Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Furthermore, tiny parts of these products can disrupt the diagnostic process medical after entering the body.
With large orders the cost of neodymium magnets is a challenge,

Holding force characteristics

Highest magnetic holding force – what contributes to it?

The declared magnet strength refers to the limit force, recorded under laboratory conditions, meaning:

with the contact of a yoke made of low-carbon steel, ensuring full magnetic saturation
with a thickness of at least 10 mm
with an ideally smooth touching surface
without the slightest insulating layer between the magnet and steel
during pulling in a direction perpendicular to the mounting surface
in temp. approx. 20°C

Determinants of practical lifting force of a magnet

Bear in mind that the application force will differ subject to elements below, starting with the most relevant:

Distance – the presence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
Pull-off angle – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
Metal thickness – thin material does not allow full use of the magnet. Part of the magnetic field penetrates through instead of converting into lifting capacity.
Plate material – mild steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
Surface finish – ideal contact is obtained only on smooth steel. Rough texture create air cushions, reducing force.
Temperature – temperature increase results in weakening of force. Check the thermal limit for a given model.

Lifting capacity testing was carried out on a smooth plate of optimal thickness, under a perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as fivefold. In addition, even a minimal clearance between the magnet and the plate reduces the holding force.

Safety rules for work with neodymium magnets

Warning for heart patients

Medical warning: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Bodily injuries

Watch your fingers. Two powerful magnets will join instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Sensitization to coating

Allergy Notice: The nickel-copper-nickel coating contains nickel. If redness appears, immediately stop handling magnets and wear gloves.

Maximum temperature

Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

Cards and drives

Data protection: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, hearing aids, timepieces).

Magnet fragility

Neodymium magnets are ceramic materials, which means they are fragile like glass. Impact of two magnets leads to them breaking into small pieces.

Adults only

Absolutely keep magnets away from children. Ingestion danger is significant, and the consequences of magnets clamping inside the body are fatal.

Precision electronics

An intense magnetic field interferes with the operation of compasses in smartphones and navigation systems. Do not bring magnets near a smartphone to prevent breaking the sensors.

Combustion hazard

Drilling and cutting of NdFeB material poses a fire hazard. Magnetic powder oxidizes rapidly with oxygen and is difficult to extinguish.

Handling rules

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

Attention! Details about risks in the article: Magnet Safety Guide.

SM 18x275 [2xM5] / N42 - magnetic separator

Need advice?

SM 18x275 [2xM5] / N42 - magnetic separator

Magnetic properties of material N42

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Pulling Force

Magnetic Induction

View more proposals

MW 9x3 / N38 - cylindrical magnet

MP 20x5x5 / N38 - ring magnet

UMGW 75x33x18 [M10] GW / N38 - magnetic holder internal thread

MPL 40x10x4 / N38 - lamellar magnet

Pros and cons of Nd2Fe14B magnets.

Benefits

Cons

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Determinants of practical lifting force of a magnet

Warning for heart patients

Bodily injuries

Sensitization to coating

Maximum temperature

Cards and drives

Magnet fragility

Adults only

Precision electronics

Combustion hazard

Handling rules

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Pros and cons of Nd₂Fe₁₄B magnets.