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UI 39x9x7 [BA] - badge holder

badge holder

Catalog no 150340

GTIN/EAN: 5906301813606

5.00

length

39 mm [±1 mm]

Width

9 mm [±1 mm]

Height

7 mm [±1 mm]

Weight

1 g

technical parameters »

0.923 ZŁ with VAT / pcs + price for transport

0.750 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety
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Pick up the phone and ask +48 22 499 98 98 or send us a note using inquiry form our website.
Parameters along with appearance of magnetic components can be calculated using our online calculation tool.

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Product card - UI 39x9x7 [BA] - badge holder

Specification / characteristics - UI 39x9x7 [BA] - badge holder

properties
properties values
Cat. no. 150340
GTIN/EAN 5906301813606
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 39 mm [±1 mm]
Width 9 mm [±1 mm]
Height 7 mm [±1 mm]
Weight 1 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 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: 150340-2026
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Force (pull)
Magnetic Induction
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The main and most important advantage is that the magnet does not puncture or damage clothing. The badge holds stably, does not tilt or hang, which improves employee image. 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. The outer part has strong 3M foam tape, to which a business card or plastic case is stuck. Magnets are hidden in an aesthetic plastic housing that does not irritate the skin.
Thanks to the use of neodymium, the holder securely grips through a jacket, thick sweater, fleece, or coat. 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. The magnetic field is point-based, short-range, and does not negatively affect a healthy person's body.
We serve advertising agencies, printing houses, hotels, and corporations, offering attractive prices for bulk purchases. You can order samples to check the quality before a larger purchase.

Advantages and disadvantages of neodymium magnets.

Pros

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 performance loss is only ~1% (based on calculations),
  • Magnets effectively resist against loss of magnetization caused by foreign field sources,
  • Thanks to the reflective finish, the layer of nickel, gold, or silver-plated gives an modern appearance,
  • They are known for high magnetic induction at the operating surface, which improves attraction properties,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
  • Thanks to versatility in shaping and the capacity to adapt to complex applications,
  • Key role in future technologies – they serve a role in HDD drives, drive modules, diagnostic systems, also technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Cons

Characteristics of disadvantages of neodymium magnets and proposals for their use:
  • They are prone to damage upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also increases its resistance to damage
  • Neodymium magnets decrease their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain stability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • Due to limitations in creating nuts and complicated shapes in magnets, we recommend using cover - magnetic holder.
  • Possible danger resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these devices can complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Pull force analysis

Highest magnetic holding force – what affects it?

The force parameter is a theoretical maximum value performed under standard conditions:
  • with the application of a yoke made of special test steel, ensuring maximum field concentration
  • possessing a massiveness of at least 10 mm to avoid saturation
  • with an ideally smooth touching surface
  • with direct contact (no paint)
  • during detachment in a direction perpendicular to the mounting surface
  • at conditions approx. 20°C

What influences lifting capacity in practice

Effective lifting capacity is influenced by working environment parameters, mainly (from most important):
  • Distance – existence of any layer (rust, tape, air) interrupts the magnetic circuit, which lowers power steeply (even by 50% at 0.5 mm).
  • Pull-off angle – note that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the maximum value.
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of converting into lifting capacity.
  • Steel grade – the best choice is pure iron steel. Cast iron may have worse magnetic properties.
  • Plate texture – smooth surfaces ensure maximum contact, which improves field saturation. Uneven metal reduce efficiency.
  • Thermal factor – high temperature weakens magnetic field. Too high temperature can permanently damage the magnet.

Lifting capacity was assessed by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, however under parallel forces the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with neodymium magnets
Warning for allergy sufferers

Studies show that the nickel plating (the usual finish) is a common allergen. If you have an allergy, refrain from touching magnets with bare hands and select encased magnets.

Do not overheat magnets

Avoid heat. Neodymium magnets are susceptible to heat. If you need operation above 80°C, inquire about HT versions (H, SH, UH).

Shattering risk

Despite the nickel coating, neodymium is brittle and not impact-resistant. Do not hit, as the magnet may shatter into hazardous fragments.

Life threat

For implant holders: Strong magnetic fields affect medical devices. Maintain at least 30 cm distance or ask another person to handle the magnets.

Danger to the youngest

Always store magnets out of reach of children. Risk of swallowing is high, and the effects of magnets clamping inside the body are tragic.

Safe distance

Device Safety: Neodymium magnets can damage payment cards and sensitive devices (heart implants, hearing aids, timepieces).

Magnetic interference

A strong magnetic field disrupts the operation of magnetometers in phones and navigation systems. Do not bring magnets near a device to prevent damaging the sensors.

Bodily injuries

Danger of trauma: The attraction force is so immense that it can cause hematomas, pinching, and even bone fractures. Use thick gloves.

Handling guide

Handle magnets with awareness. Their huge power can shock even professionals. Be vigilant and do not underestimate their power.

Fire warning

Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this may cause fire.

Important! Need more info? Read our article: Are neodymium magnets dangerous?