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UI 33x13x4 [C311] / N38 - badge holder

badge holder

Catalog no 150207

GTIN/EAN: 5906301813545

5.00
Load capacity 1.80 kg / 17.65 N
length
33 mm [±1 mm]
Width
13 mm [±1 mm]
Height
4 mm [±1 mm]
Weight
0.21 g
check technical specifications »

2.40 zł with VAT / pcs + price for transport

1.950 zł net + 23% VAT / pcs

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Technical data - UI 33x13x4 [C311] / N38 - badge holder

Specification / characteristics - UI 33x13x4 [C311] / N38 - badge holder

properties
properties values
Cat. no. 150207
GTIN/EAN 5906301813545
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 33 mm [±1 mm]
Width 13 mm [±1 mm]
Height 4 mm [±1 mm]
Weight 0.21 g
Load capacity ~ ? 1.80 kg / 17.65 N
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UI 33x13x4 [C311] / N38 - badge 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

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%

Sustainability

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: 150207-2026
Measurement Calculator

Force (pull)

Field Strength

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The magnetic holder is safe for delicate fabrics, expensive suits, silk, and shirts. Thanks to this, the badge looks professional, straight, and aesthetic all day long. It's a standard solution at conferences, trade fairs, and in companies caring about image.
The set includes a strip with magnets (put under clothes) and a steel plate with tape (on the outside). 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.
Attraction force is sufficient to hold the badge even on winter clothing. Model UI 33x13x4 [C311] / N38 ensures optimal grip without the risk of losing the badge in motion.
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 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.

Pros and cons of rare earth magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
  • Magnets perfectly resist against demagnetization caused by ambient magnetic noise,
  • By covering with a lustrous layer of silver, the element has an elegant look,
  • Magnets are characterized by maximum magnetic induction on the outer layer,
  • Through (adequate) combination of ingredients, they can achieve high thermal strength, allowing for operation at temperatures reaching 230°C and above...
  • Possibility of exact modeling and adjusting to specific conditions,
  • Versatile presence in high-tech industry – they are used in hard drives, electromotive mechanisms, advanced medical instruments, also complex engineering applications.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Limitations

What to avoid - cons of neodymium magnets: weaknesses and usage proposals
  • At strong impacts they can break, therefore we advise placing them in special holders. A metal housing provides additional protection against damage and increases the magnet's durability.
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
  • Magnets exposed to a humid environment can corrode. Therefore when using outdoors, we recommend using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited possibility of creating nuts in the magnet and complex forms - recommended is a housing - mounting mechanism.
  • Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these magnets can be problematic in diagnostics medical when they are in the body.
  • With large orders the cost of neodymium magnets can be a barrier,

Lifting parameters

Maximum lifting force for a neodymium magnet – what affects it?

The lifting capacity listed is a result of laboratory testing conducted under specific, ideal conditions:
  • using a plate made of high-permeability steel, functioning as a ideal flux conductor
  • possessing a thickness of min. 10 mm to avoid saturation
  • with a surface cleaned and smooth
  • with direct contact (no paint)
  • for force acting at a right angle (in the magnet axis)
  • in stable room temperature

Determinants of practical lifting force of a magnet

In practice, the real power results from several key aspects, ranked from the most important:
  • Space between surfaces – even a fraction of a millimeter of separation (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 has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of converting into lifting capacity.
  • Material type – ideal substrate is high-permeability steel. Cast iron may generate lower lifting capacity.
  • Surface structure – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Roughness acts like micro-gaps.
  • Temperature influence – hot environment weakens magnetic field. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular pulling force, in contrast under attempts to slide the magnet the holding force is lower. In addition, even a small distance between the magnet and the plate decreases the holding force.

Warnings
GPS Danger

Remember: rare earth magnets generate a field that interferes with precision electronics. Maintain a separation from your phone, tablet, and navigation systems.

Heat sensitivity

Regular neodymium magnets (N-type) lose power when the temperature surpasses 80°C. Damage is permanent.

Pacemakers

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

Sensitization to coating

Studies show that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or opt for encased magnets.

No play value

Absolutely keep magnets away from children. Choking hazard is high, and the consequences of magnets clamping inside the body are very dangerous.

Handling rules

Before starting, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Material brittleness

Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Eye protection is mandatory.

Electronic devices

Equipment safety: Neodymium magnets can ruin payment cards and delicate electronics (heart implants, medical aids, mechanical watches).

Physical harm

Danger of trauma: The pulling power is so great that it can cause blood blisters, crushing, and broken bones. Protective gloves are recommended.

Dust explosion hazard

Powder produced during cutting of magnets is self-igniting. Avoid drilling into magnets without proper cooling and knowledge.

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