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UI 40x12x7 [CA] - badge holder

badge holder

Catalog no 150341

GTIN/EAN: 5906301813613

5.00

length

40 mm [±1 mm]

Width

12 mm [±1 mm]

Height

7 mm [±1 mm]

Weight

1.5 g

see technical data »

0.984 ZŁ with VAT / pcs + price for transport

0.800 ZŁ net + 23% VAT / pcs

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Force as well as shape of a magnet can be verified on our magnetic mass calculator.

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Technical parameters of the product - UI 40x12x7 [CA] - badge holder

Specification / characteristics - UI 40x12x7 [CA] - badge holder

properties
properties values
Cat. no. 150341
GTIN/EAN 5906301813613
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
length 40 mm [±1 mm]
Width 12 mm [±1 mm]
Height 7 mm [±1 mm]
Weight 1.5 g
Manufacturing Tolerance ±1 mm

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°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: 150341-2026
Measurement Calculator
Magnet pull force
Magnetic Field
Insert a number in one of the inputs, and all other values will recalculate automatically.

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The magnetic holder is safe for delicate fabrics, expensive suits, silk, and shirts. This ensures elegance and wearing comfort, without the risk of pricking yourself or ruining clothes. It's a standard solution at conferences, trade fairs, and in companies caring about image.
Construction includes a module with strong neodymium magnets in plastic and a plate with self-adhesive tape. You stick your badge on the plate, and the magnet holds it through the clothing material. Magnets are hidden in an aesthetic plastic housing that does not irritate the skin.
Yes, the neodymium magnets used are very strong and hold even through thick materials. We offer versions with two or three magnets, which further increases stability and strength.
There is a risk of disrupting pacemaker operation by a strong magnetic field, so we advise against this solution for people with implants. For other people, magnets are completely safe and indifferent to health.
We have large warehouse stocks in Poland, allowing for fast fulfillment of orders for companies (even thousands of pieces). You can order samples to check the quality before a larger purchase.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Strengths

In addition to their long-term stability, neodymium magnets provide the following advantages:
  • They do not lose magnetism, even after nearly 10 years – the drop in lifting capacity is only ~1% (based on measurements),
  • Magnets perfectly protect themselves against loss of magnetization caused by ambient magnetic noise,
  • In other words, due to the smooth layer of gold, the element is aesthetically pleasing,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • Thanks to versatility in constructing and the capacity to adapt to individual projects,
  • Significant place in future technologies – they are commonly used in HDD drives, electric motors, diagnostic systems, also technologically advanced constructions.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Cons

Disadvantages of NdFeB magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets experience 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
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we suggest using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
  • We suggest a housing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complex shapes.
  • Health risk related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. It is also worth noting that tiny parts of these products are able to disrupt the diagnostic process medical after entering the body.
  • With mass production the cost of neodymium magnets is economically unviable,

Holding force characteristics

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

The force parameter is a result of laboratory testing performed under specific, ideal conditions:
  • using a base made of mild steel, functioning as a magnetic yoke
  • possessing a massiveness of minimum 10 mm to avoid saturation
  • with an polished touching surface
  • under conditions of gap-free contact (metal-to-metal)
  • under vertical force direction (90-degree angle)
  • in neutral thermal conditions

Practical lifting capacity: influencing factors

Bear in mind that the working load may be lower influenced by the following factors, in order of importance:
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Force direction – remember that the magnet holds strongest perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Material composition – not every steel reacts the same. Alloy additives weaken the attraction effect.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Thermal conditions – NdFeB sinters have a sensitivity to temperature. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Lifting capacity was determined with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.

Precautions when working with NdFeB magnets
No play value

Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which constitutes a direct threat to life and requires urgent medical intervention.

Do not overheat magnets

Avoid heat. Neodymium magnets are sensitive to heat. If you need resistance above 80°C, look for special high-temperature series (H, SH, UH).

ICD Warning

Life threat: Strong magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Magnet fragility

Despite metallic appearance, the material is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Keep away from electronics

Note: rare earth magnets generate a field that confuses sensitive sensors. Maintain a separation from your mobile, device, and navigation systems.

Caution required

Exercise caution. Rare earth magnets act from a distance and snap with huge force, often faster than you can react.

Cards and drives

Do not bring magnets near a purse, laptop, or screen. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Nickel allergy

A percentage of the population have a contact allergy to Ni, which is the typical protective layer for NdFeB magnets. Prolonged contact can result in skin redness. We recommend use safety gloves.

Fire warning

Mechanical processing of neodymium magnets carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Crushing force

Big blocks can break fingers in a fraction of a second. Never put your hand between two attracting surfaces.

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