UMS 32x10.5x5.5x8 / N38 - conical magnetic holder

Product on order Ships in 3-5 days

UMS 32x10.5x5.5x8 / 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 220329

GTIN/EAN: 5906301814191

5.00

Diameter Ø

32 mm [±1 mm]

cone dimension Ø

10.5x5.5 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

37 g

Magnetization Direction

↑ axial

Load capacity

25.00 kg / 245.17 N

Coating

[NiCuNi] Nickel

see technical data »

12.09 ZŁ with VAT / pcs + price for transport

9.83 ZŁ net + 23% VAT / pcs

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Technical specification of the product - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder

Specification / characteristics - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder

properties

properties	values
Cat. no.	220329
GTIN/EAN	5906301814191
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]
cone dimension Ø	10.5x5.5 mm [±1 mm]
Height	8 mm [±1 mm]
Weight	37 g
Magnetization Direction	↑ axial
Load capacity ~ ?	25.00 kg / 245.17 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMS 32x10.5x5.5x8 / 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

Engineering data and GPSR

Chemical composition

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: 220329-2026

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It is the most popular solution for creating aesthetic, invisible door locks. The ability to flush the screw with the magnet surface allows for perfect closing without gaps. Model UMS 32x10.5x5.5x8 / N38 will successfully hold inspection doors, tools in the workshop, or shop display elements.

Remember that neodymium breaks easily if the screw is tightened too hard. Avoid forceful tightening when you feel resistance. The screw head should not protrude above the magnet surface, but it cannot burst it either.

Two identical magnets (e.g., both N) bought randomly will repel each other with mounting sides. In our offer, we try to mark or pair holders if explicitly stated in the description. Mounting a magnet to a plate eliminates the problem of matching poles and is easier.

The declared capacity (e.g., 25.00 kg) refers to the perpendicular force needed to detach the magnet from thick steel. In practice, when mounted on a wall (shear force), the magnet will hold significantly less (approx. 20-30% of nominal). Paint or veneer on metal also reduces effective attraction force.

A magnet in a housing is stronger on one side (from the chamfer side) than a bare magnet of the same dimensions. It is a more durable and safer solution in everyday use than a bare ring. A bare ring has a dispersed field on both sides but is weaker in point holding.

Pros and cons of neodymium magnets.

Benefits

In addition to their long-term stability, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (according to literature),
Magnets very well protect themselves against demagnetization caused by external fields,
The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to look better,
Magnets are characterized by huge magnetic induction on the outer side,
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 precise modeling and modifying to specific requirements,
Wide application in modern technologies – they are used in hard drives, electric drive systems, precision medical tools, and other advanced devices.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which allows their use in miniature devices

Limitations

Disadvantages of NdFeB magnets:

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also increases their durability
When exposed to high temperature, neodymium magnets experience a drop in power. Often, when the temperature exceeds 80°C, their power 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
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 secure oxidation as well as corrosion.
Due to limitations in producing threads and complex forms in magnets, we propose using casing - magnetic holder.
Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which gains importance in the aspect of protecting the youngest. Additionally, tiny parts of these products are able to be problematic in diagnostics medical when they are in the body.
Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what contributes to it?

The lifting capacity listed is a result of laboratory testing conducted under standard conditions:

using a base made of high-permeability steel, serving as a magnetic yoke
with a thickness no less than 10 mm
with an ground contact surface
without any air gap between the magnet and steel
for force applied at a right angle (pull-off, not shear)
in neutral thermal conditions

Determinants of lifting force in real conditions

During everyday use, the actual lifting capacity is determined by several key aspects, ranked from most significant:

Gap between surfaces – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) diminishes 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 holding force drops drastically, often to levels of 20-30% of the nominal value.
Steel thickness – too thin sheet does not accept the full field, causing part of the power to be lost to the other side.
Steel grade – ideal substrate is high-permeability steel. Hardened steels may have worse magnetic properties.
Surface finish – full contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was determined with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the holding force is lower. Moreover, even a small distance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings

Threat to electronics

Do not bring magnets close to a wallet, computer, or screen. The magnetism can permanently damage these devices and erase data from cards.

Life threat

Health Alert: Neodymium magnets can deactivate heart devices and defibrillators. Stay away if you have electronic implants.

Fire warning

Fire warning: Rare earth powder is highly flammable. Avoid machining magnets without safety gear as this may cause fire.

Product not for children

Absolutely store magnets away from children. Risk of swallowing is significant, and the consequences of magnets connecting inside the body are very dangerous.

Allergic reactions

Studies show that the nickel plating (standard magnet coating) is a strong allergen. If your skin reacts to metals, avoid touching magnets with bare hands and opt for versions in plastic housing.

Heat sensitivity

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will destroy its magnetic structure and pulling force.

Precision electronics

Be aware: rare earth magnets generate a field that interferes with precision electronics. Keep a safe distance from your phone, device, and GPS.

Handling guide

Before use, check safety instructions. Sudden snapping can break the magnet or hurt your hand. Think ahead.

Physical harm

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

Fragile material

Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting sharp fragments into the air. Eye protection is mandatory.

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

UMS 32x10.5x5.5x8 / N38 - conical magnetic holder

Technical specification of the product - UMS 32x10.5x5.5x8 / N38 - conical magnetic holder

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Ecology and recycling (GPSR)

Force (pull)

Field Strength

Other products

MPL 20x10x2 / N38 - lamellar magnet

SM 25x250 [2xM8] / N42 - magnetic separator

SM 32x150 [2xM8] / N52 - magnetic separator

UMT 12x20 red / N38 - board holder

Pros and cons of neodymium magnets.

Benefits

Limitations

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what contributes to it?

Determinants of lifting force in real conditions

Warnings

Threat to electronics

Life threat

Fire warning

Product not for children

Allergic reactions

Heat sensitivity

Precision electronics

Handling guide

Physical harm

Fragile material

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C