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SM 32x400 [2xM8] / 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 130302

GTIN: 5906301812951

5.00

Diameter Ø

32 mm [±1 mm]

Height

400 mm [±1 mm]

Weight

2145 g

Magnetic Flux

~ 8 000 Gauss [±5%]

1193.10 ZŁ with VAT / pcs + price for transport

970.00 ZŁ net + 23% VAT / pcs

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1073.79 ZŁ

Carbon Footprint – environmental impact GPSR Regulation – product safety

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Call us +48 22 499 98 98 alternatively send us a note via contact form our website.
Force along with shape of a neodymium magnet can be reviewed using our online calculation tool.

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SM 32x400 [2xM8] / N42 - magnetic separator

Specification / characteristics SM 32x400 [2xM8] / N42 - magnetic separator

properties

properties	values
Cat. no.	130302
GTIN	5906301812951
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	400 mm [±1 mm]
Weight	2145 g
Material Type	Stainless steel AISI 304 / A2
Magnetic Flux	~ 8 000 Gauss [±5%]
Size/Mount Quantity	2xM8
Polarity	circumferential - 15 poles
Casing Tube Thickness	1 mm
Manufacturing Tolerance	±1 mm

Magnetic properties of material N42

Specification / characteristics SM 32x400 [2xM8] / 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

Quick Unit Converter

Pulling Force

Newtons (N)

Force in lbs

Field Strength

Induction (Gs)

Input your figure in one of the inputs, and the remaining fields change instantly.

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It is the "heart" of every magnetic filter used in industry for cleaning raw materials. 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 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). 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). In industry, cover tubes (so-called Easy Clean system) are used, from which the magnetic insert slides out.

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.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Pros

In addition to their magnetic capacity, neodymium magnets provide the following advantages:

They have constant strength, and over around 10 years their performance decreases symbolically – ~1% (according to theory),
They feature excellent resistance to magnetism drop as a result of external magnetic sources,
A magnet with a shiny silver surface looks better,
They feature high magnetic induction at the operating surface, which affects their effectiveness,
Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
Possibility of exact modeling and optimizing to concrete applications,
Huge importance in modern industrial fields – they are used in magnetic memories, electric motors, medical equipment, also multitasking production systems.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in small dimensions, which makes them useful in compact constructions

Disadvantages

What to avoid - cons of neodymium magnets and ways of using them

At very strong impacts they can crack, therefore we recommend 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
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.
Limited ability of making threads in the magnet and complicated shapes - recommended is a housing - mounting mechanism.
Possible danger resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. Additionally, small elements of these devices are able to complicate diagnosis medical when they are in the body.
High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which hinders application in large quantities

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

The declared magnet strength represents the maximum value, recorded under ideal test conditions, meaning:

on a plate made of structural steel, optimally conducting the magnetic flux
with a cross-section minimum 10 mm
characterized by lack of roughness
without the slightest clearance between the magnet and steel
for force applied at a right angle (in the magnet axis)
at temperature approx. 20 degrees Celsius

Practical lifting capacity: influencing factors

It is worth knowing that the magnet holding may be lower depending on the following factors, in order of importance:

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
Pull-off angle – remember that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops drastically, often to levels of 20-30% of the maximum value.
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material type – ideal substrate is high-permeability steel. Cast iron may have worse magnetic properties.
Surface finish – full contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, reducing force.
Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was assessed using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under shearing force the load capacity is reduced by as much as fivefold. Additionally, even a slight gap between the magnet and the plate decreases the lifting capacity.

Warnings

Life threat

Health Alert: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Danger to the youngest

Neodymium magnets are not intended for children. Swallowing several magnets may result in them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.

Demagnetization risk

Do not overheat. NdFeB magnets are sensitive to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Bodily injuries

Danger of trauma: The pulling power is so immense that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.

Shattering risk

Despite metallic appearance, neodymium is delicate and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Magnetic interference

A strong magnetic field interferes with the operation of compasses in phones and GPS navigation. Do not bring magnets close to a smartphone to avoid damaging the sensors.

Warning for allergy sufferers

Warning for allergy sufferers: The nickel-copper-nickel coating consists of nickel. If redness happens, immediately stop handling magnets and wear gloves.

Respect the power

Handle with care. Rare earth magnets attract from a distance and snap with massive power, often quicker than you can react.

Cards and drives

Device Safety: Strong magnets can damage payment cards and sensitive devices (heart implants, medical aids, mechanical watches).

Mechanical processing

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust oxidizes rapidly with oxygen and is hard to extinguish.

Warning! Learn more about hazards in the article: Magnet Safety Guide.

SM 32x400 [2xM8] / N42 - magnetic separator

Need help making a decision?

SM 32x400 [2xM8] / N42 - magnetic separator

Magnetic properties of material N42

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Pulling Force

Field Strength

Other products

SM 25x150 [2xM8] / N52 - magnetic separator

MW 4x8 / N38 - cylindrical magnet

UMH 42x9x46 [M6] / N38 - magnetic holder with hook

SM 32x475 [2xM8] / N52 - magnetic separator

Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Disadvantages

Pull force analysis

Maximum holding power of the magnet – what contributes to it?

Practical lifting capacity: influencing factors

Life threat

Danger to the youngest

Demagnetization risk

Bodily injuries

Shattering risk

Magnetic interference

Warning for allergy sufferers

Respect the power

Cards and drives

Mechanical processing

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages and disadvantages of Nd₂Fe₁₄B magnets.