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SM 18x200 [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 130273

GTIN/EAN: 5906301812753

Diameter Ø

18 mm [±1 mm]

Height

200 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 5 400 Gauss [±5%]

442.80 ZŁ with VAT / pcs + price for transport

360.00 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Pick up the phone and ask +48 888 99 98 98 otherwise get in touch through inquiry form our website.
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SM 18x200 [2xM5] / N42 - magnetic separator

Specification / characteristics SM 18x200 [2xM5] / N42 - magnetic separator

properties

properties	values
Cat. no.	130273
GTIN/EAN	5906301812753
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	200 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 - 9 poles
Casing Tube Thickness	1 mm
Manufacturing Tolerance	±1 mm

Magnetic properties of material N42

Specification / characteristics SM 18x200 [2xM5] / 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

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 specification and ecology

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: 130273-2025

Measurement Calculator

Magnet pull force

Kilograms (kg)

Force (N)

lbs

Magnetic Field

Induction (T)

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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. High magnetic induction on the surface allows catching the finest iron particles.

The outer layer is hygienic acid-resistant steel, approved for food contact. 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.

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. 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. Standard rods (~8000 Gs) are sufficient for catching screws, nails, and steel shavings. High Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.

We fulfill individual orders for bars perfectly matched to your machine or separator. You can choose a mounting method consistent with your technical design. We ensure fast realization of special orders and technical advice.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Benefits

Apart from their strong power, neodymium magnets have these key benefits:

They retain magnetic properties for almost 10 years – the loss is just ~1% (according to analyses),
Neodymium magnets are distinguished by remarkably resistant to magnetic field loss caused by external field sources,
Thanks to the shimmering finish, the surface of nickel, gold, or silver gives an clean appearance,
Magnets possess extremely high magnetic induction on the surface,
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...
In view of the possibility of flexible molding and adaptation to custom requirements, NdFeB magnets can be created in a wide range of forms and dimensions, which expands the range of possible applications,
Wide application in modern technologies – they are commonly used in HDD drives, drive modules, diagnostic systems, and complex engineering applications.
Thanks to their power density, small magnets offer high operating force, with minimal size,

Limitations

Disadvantages of NdFeB magnets:

At very strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their strength 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
Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
Limited possibility of making threads in the magnet and complicated shapes - recommended is cover - magnetic holder.
Possible danger related to microscopic parts of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. It is also worth noting that small elements of these magnets are able to be problematic in diagnostics medical after entering the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Lifting parameters

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

The specified lifting capacity refers to the limit force, obtained under laboratory conditions, specifically:

on a base made of structural steel, effectively closing the magnetic flux
possessing a massiveness of minimum 10 mm to avoid saturation
with a plane cleaned and smooth
under conditions of ideal adhesion (surface-to-surface)
during detachment in a direction vertical to the plane
in neutral thermal conditions

Practical lifting capacity: influencing factors

Please note that the magnet holding will differ influenced by elements below, starting with the most relevant:

Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by veneer or unevenness) significantly weakens the pulling force, often by half at just 0.5 mm.
Direction of force – highest force is obtained only during perpendicular pulling. The resistance to sliding of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
Steel type – low-carbon steel attracts best. Alloy admixtures decrease magnetic properties and holding force.
Plate texture – ground elements ensure maximum contact, which increases field saturation. Rough surfaces weaken the grip.
Thermal factor – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was assessed with the use of a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under shearing force the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet and the plate decreases the load capacity.

Safety rules for work with NdFeB magnets

Caution required

Handle magnets consciously. Their powerful strength can shock even professionals. Be vigilant and respect their force.

Product not for children

Adult use only. Tiny parts pose a choking risk, leading to severe trauma. Store out of reach of kids and pets.

Combustion hazard

Powder created during machining of magnets is combustible. Avoid drilling into magnets unless you are an expert.

Power loss in heat

Control the heat. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Electronic devices

Equipment safety: Neodymium magnets can ruin data carriers and delicate electronics (heart implants, medical aids, mechanical watches).

Implant safety

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

Sensitization to coating

Some people experience a hypersensitivity to Ni, which is the standard coating for NdFeB magnets. Frequent touching might lead to an allergic reaction. We suggest wear safety gloves.

Fragile material

Neodymium magnets are sintered ceramics, meaning they are prone to chipping. Collision of two magnets will cause them shattering into shards.

Pinching danger

Protect your hands. Two large magnets will join instantly with a force of massive weight, destroying everything in their path. Exercise extreme caution!

Threat to navigation

Remember: rare earth magnets generate a field that interferes with sensitive sensors. Keep a separation from your phone, tablet, and GPS.

Safety First! Details about risks in the article: Safety of working with magnets.

SM 18x200 [2xM5] / N42 - magnetic separator

Can't decide what to choose?

SM 18x200 [2xM5] / N42 - magnetic separator

Magnetic properties of material N42

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Ecology and recycling (GPSR)

Magnet pull force

Magnetic Field

See also proposals

SM 32x425 [2xM8] / N42 - magnetic separator

MW 9x3 / N38 - cylindrical magnet

AM klisza magnetyczna 50 x 50 mm - magnetic accessories

SM 25x250 [2xM8] / N52 - magnetic separator

Advantages as well as disadvantages of Nd2Fe14B magnets.

Benefits

Limitations

Lifting parameters

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

Practical lifting capacity: influencing factors

Caution required

Product not for children

Combustion hazard

Power loss in heat

Electronic devices

Implant safety

Sensitization to coating

Fragile material

Pinching danger

Threat to navigation

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.