UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

Product available Ships tomorrow

UMS 36x10.5x6.5x8 / N38 - conical 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

conical magnetic holder

Catalog no 220330

GTIN/EAN: 5906301814207

5.00

Diameter Ø

36 mm [±1 mm]

cone dimension Ø

10.5x6.5 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

45 g

Magnetization Direction

↑ axial

Load capacity

29.00 kg / 284.39 N

Coating

[NiCuNi] Nickel

check properties »

22.94 ZŁ with VAT / pcs + price for transport

18.65 ZŁ net + 23% VAT / pcs

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Technical details - UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

Specification / characteristics - UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

properties

properties	values
Cat. no.	220330
GTIN/EAN	5906301814207
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	36 mm [±1 mm]
cone dimension Ø	10.5x6.5 mm [±1 mm]
Height	8 mm [±1 mm]
Weight	45 g
Magnetization Direction	↑ axial
Load capacity ~ ?	29.00 kg / 284.39 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMS 36x10.5x6.5x8 / N38 - conical 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

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: 220330-2026

Measurement Calculator

Force (pull)

Force in kg

Force (N)

Force in lbs

Magnetic Induction

Gauss (Gs)

Induction (T)

Enter a number in one of the inputs, to see the remaining fields will recalculate on the fly.

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Countersunk magnets are indispensable in carpentry, furniture making, and modeling as hidden closures. The ability to flush the screw with the magnet surface allows for perfect closing without gaps. The steel cup strengthens the magnet force and protects it from cracking upon impact.

Neodymium magnets are sintered ceramics, which means they are very hard but also brittle. It is best to use a screw with a countersunk head perfectly matched to the hole. Using too large a countersunk screw may cause the magnetic ring to crack.

Two identical magnets (e.g., both N) bought randomly will repel each other with mounting sides. Often a more convenient and cheaper solution is using one magnet and a steel washer (plate) as an armature. A set of magnet + plate is cheaper and holds just as strongly.

This force is measured in ideal laboratory conditions when pulling at a 90-degree angle. To increase friction and prevent sliding, it is worth sticking a piece of rubber or anti-slip tape on the magnet. Paint or veneer on metal also reduces effective attraction force.

The steel housing (cup/pot) acts as a magnetic shield, directing all power to the front of the holder. Furthermore, steel protects the brittle neodymium from mechanical damage when closing cabinets (impacts). A bare ring has a dispersed field on both sides but is weaker in point holding.

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.

Advantages

Besides their durability, neodymium magnets are valued for these benefits:

They have stable power, and over more than ten years their performance decreases symbolically – ~1% (in testing),
They are resistant to demagnetization induced by presence of other magnetic fields,
By using a lustrous coating of gold, the element acquires an modern look,
Magnets exhibit excellent magnetic induction on the active area,
Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
In view of the possibility of free molding and adaptation to unique projects, NdFeB magnets can be created in a wide range of geometric configurations, which amplifies use scope,
Key role in electronics industry – they serve a role in HDD drives, brushless drives, diagnostic systems, as well as complex engineering applications.
Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Weaknesses

Disadvantages of neodymium magnets:

Susceptibility to cracking is one of their disadvantages. Upon strong impact they can break. We advise keeping them in a strong case, which not only secures them against impacts but also raises their durability
We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic mount, due to difficulties in creating nuts inside the magnet and complicated shapes.
Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child health protection. Additionally, tiny parts of these products can complicate diagnosis medical in case of swallowing.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what it depends on?

The force parameter is a result of laboratory testing conducted under the following configuration:

using a base made of low-carbon steel, serving as a magnetic yoke
whose thickness is min. 10 mm
with a surface cleaned and smooth
under conditions of ideal adhesion (metal-to-metal)
during detachment in a direction perpendicular to the mounting surface
at ambient temperature approx. 20 degrees Celsius

Key elements affecting lifting force

In practice, the real power is determined by several key aspects, presented from most significant:

Distance – the presence of foreign body (rust, dirt, gap) interrupts the magnetic circuit, which lowers capacity steeply (even by 50% at 0.5 mm).
Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of maximum force).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Steel grade – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
Smoothness – full contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, however under shearing force the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate decreases the load capacity.

Warnings

Demagnetization risk

Keep cool. Neodymium magnets are sensitive to temperature. If you need resistance above 80°C, ask us about special high-temperature series (H, SH, UH).

Flammability

Drilling and cutting of neodymium magnets poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Crushing force

Risk of injury: The attraction force is so immense that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.

Data carriers

Intense magnetic fields can destroy records on credit cards, hard drives, and other magnetic media. Keep a distance of at least 10 cm.

Keep away from electronics

GPS units and smartphones are extremely susceptible to magnetism. Direct contact with a strong magnet can ruin the sensors in your phone.

Life threat

Individuals with a pacemaker have to keep an large gap from magnets. The magnetism can disrupt the functioning of the life-saving device.

Avoid contact if allergic

Warning for allergy sufferers: The Ni-Cu-Ni coating contains nickel. If an allergic reaction happens, immediately stop handling magnets and wear gloves.

Handling rules

Use magnets consciously. Their powerful strength can shock even professionals. Stay alert and respect their power.

Danger to the youngest

Product intended for adults. Small elements can be swallowed, causing serious injuries. Keep out of reach of kids and pets.

Magnet fragility

NdFeB magnets are ceramic materials, meaning they are prone to chipping. Impact of two magnets leads to them shattering into shards.

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

UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

Technical details - UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Ecology and recycling (GPSR)

Force (pull)

Magnetic Induction

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SM 32x125 [2xM8] / N42 - magnetic separator

Advantages as well as disadvantages of Nd2Fe14B magnets.

Advantages

Weaknesses

Pull force analysis

Breakaway strength of the magnet in ideal conditions – what it depends on?

Key elements affecting lifting force

Warnings

Demagnetization risk

Flammability

Crushing force

Data carriers

Keep away from electronics

Life threat

Avoid contact if allergic

Handling rules

Danger to the youngest

Magnet fragility

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages as well as disadvantages of Nd₂Fe₁₄B magnets.