UMC 36x6/4X8 / N38 - cylindrical magnetic holder

Product available Ships in 2 days

UMC 36x6/4X8 / N38 - cylindrical magnetic holder

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

cylindrical magnetic holder

Catalog no 320410

GTIN/EAN: 5906301814665

5.00

Diameter

36 mm [±1 mm]

internal diameter Ø

6/4 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

45 g

Load capacity

29.00 kg / 284.39 N

Coating

[NiCuNi] Nickel

product specifications »

21.49 ZŁ with VAT / pcs + price for transport

17.47 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Parameters along with form of neodymium magnets can be calculated on our force calculator.

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Technical parameters - UMC 36x6/4X8 / N38 - cylindrical magnetic holder

Specification / characteristics - UMC 36x6/4X8 / N38 - cylindrical magnetic holder

properties

properties	values
Cat. no.	320410
GTIN/EAN	5906301814665
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	36 mm [±1 mm]
internal diameter Ø	6/4 mm [±1 mm]
Height	8 mm [±1 mm]
Weight	45 g
Load capacity ~ ?	29.00 kg / 284.39 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMC 36x6/4X8 / N38 - cylindrical magnetic holder

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	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

Engineering data and GPSR

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%

Environmental data

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: 320410-2026

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These are magnets in the shape of a rod in a brass or steel sleeve, ideal for embedding in deep sockets. Thanks to side shielding, they do not "catch" the walls of the mounting hole, which facilitates installation.

It can also be glued or pressed (maintaining tolerance) into a prepared hole. Thanks to the long body, the magnet is stable in the hole and does not tilt.

The thick, steel or brass housing (sleeve) effectively screens the magnetic field on the sides of the holder. It enables precise point action without side interference.

The steel housing provides excellent mechanical protection for the brittle magnet against impacts. Thanks to the solid build, the holder withstands repeated impacts and shocks during work cycles.

Dimensions may vary slightly, so they are not always H7 fitted elements without machining. It is an industrial product, not a precise machine element, although the execution is careful.

Advantages as well as disadvantages of rare earth magnets.

Benefits

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

They retain attractive force for around 10 years – the drop is just ~1% (in theory),
Magnets very well defend themselves against demagnetization caused by ambient magnetic noise,
A magnet with a metallic silver surface looks better,
Magnetic induction on the working layer of the magnet turns out to be strong,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Possibility of detailed shaping and optimizing to concrete conditions,
Huge importance in modern industrial fields – they are commonly used in hard drives, electric drive systems, advanced medical instruments, as well as industrial machines.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

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

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a steel housing, which not only secures them against impacts but also increases their durability
NdFeB magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop 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 very resistant to heat
Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
We suggest casing - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these devices can disrupt the diagnostic process medical in case of swallowing.
With large orders the cost of neodymium magnets can be a barrier,

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what affects it?

The force parameter is a result of laboratory testing executed under standard conditions:

on a block made of mild steel, effectively closing the magnetic flux
whose transverse dimension equals approx. 10 mm
characterized by smoothness
with direct contact (without coatings)
for force acting at a right angle (pull-off, not shear)
at ambient temperature approx. 20 degrees Celsius

Magnet lifting force in use – key factors

Real force impacted by working environment parameters, such as (from most important):

Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
Angle of force application – highest force is reached only during pulling at a 90° angle. The shear force of the magnet along the surface is usually many times smaller (approx. 1/5 of the lifting capacity).
Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
Plate material – mild steel gives the best results. Alloy admixtures lower magnetic properties and lifting capacity.
Surface condition – ground elements guarantee perfect abutment, which increases force. Rough surfaces weaken the grip.
Temperature – temperature increase results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity was determined with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet and the plate reduces the load capacity.

Warnings

Powerful field

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

Electronic devices

Powerful magnetic fields can corrupt files on credit cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.

Machining danger

Powder produced during grinding of magnets is flammable. Do not drill into magnets without proper cooling and knowledge.

Implant safety

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

Protective goggles

Beware of splinters. Magnets can explode upon uncontrolled impact, ejecting shards into the air. Wear goggles.

This is not a toy

Absolutely store magnets away from children. Risk of swallowing is high, and the effects of magnets connecting inside the body are life-threatening.

Magnetic interference

A strong magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Keep magnets near a device to prevent damaging the sensors.

Physical harm

Watch your fingers. Two large magnets will join immediately with a force of massive weight, crushing everything in their path. Be careful!

Sensitization to coating

Allergy Notice: The nickel-copper-nickel coating contains nickel. If skin irritation occurs, cease working with magnets and use protective gear.

Demagnetization risk

Avoid heat. NdFeB magnets are sensitive to temperature. If you need operation above 80°C, look for HT versions (H, SH, UH).

Important! Learn more about hazards in the article: Safety of working with magnets.

UMC 36x6/4X8 / N38 - cylindrical magnetic holder

Technical parameters - UMC 36x6/4X8 / N38 - cylindrical magnetic holder

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Environmental data

Pulling force

Field Strength

See also offers

MPL 10x7x3 / N38 - lamellar magnet

SM 32x175 [2xM8] / N42 - magnetic separator

UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

SM 32x450 [2xM8] / N42 - magnetic separator

Advantages as well as disadvantages of rare earth magnets.

Benefits

Cons

Pull force analysis

Optimal lifting capacity of a neodymium magnet – what affects it?

Magnet lifting force in use – key factors

Warnings

Powerful field

Electronic devices

Machining danger

Implant safety

Protective goggles

This is not a toy

Magnetic interference

Physical harm

Sensitization to coating

Demagnetization risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C