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UI 17.5x5 [C310] / N38 - badge holder

badge holder

Catalog no 150261

GTIN/EAN: 5906301813583

5.00

Diameter Ø

17.5 mm [±1 mm]

Height

5 mm [±1 mm]

Weight

0.11 g

Load capacity

0.75 kg / 7.35 N

check parameters »

1.316 ZŁ with VAT / pcs + price for transport

1.070 ZŁ net + 23% VAT / pcs

bulk discounts:

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Want to talk magnets?

Give us a call +48 22 499 98 98 otherwise get in touch via inquiry form the contact form page.
Lifting power as well as shape of magnets can be checked on our our magnetic calculator.

Same-day processing for orders placed before 14:00.

Product card - UI 17.5x5 [C310] / N38 - badge holder

Specification / characteristics - UI 17.5x5 [C310] / N38 - badge holder

properties
properties values
Cat. no. 150261
GTIN/EAN 5906301813583
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 17.5 mm [±1 mm]
Height 5 mm [±1 mm]
Weight 0.11 g
Load capacity ~ ? 0.75 kg / 7.35 N
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UI 17.5x5 [C310] / 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
Technical and environmental data
Elemental analysis
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: 150261-2026
Quick Unit Converter
Force (pull)
Field Strength
Input data in a box, to see all other values convert on the fly.

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Unlike safety pins or pins, magnetic fastening leaves no marks or holes on the material. 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.
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. The plastic magnet housing is pleasant to the touch, smooth, and safe for the user.
Yes, the neodymium magnets used are very strong and hold even through thick materials. A larger number of magnetic points prevents the badge from twisting.
For people with a pacemaker, we recommend traditional fasteners on a lanyard, clip, or safe pin. Healthy users can use badges without worrying about their well-being.
We serve advertising agencies, printing houses, hotels, and corporations, offering attractive prices for bulk purchases. We offer discount thresholds and quantity discounts depending on order size.

Advantages and disadvantages of neodymium magnets.

Pros

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They do not lose magnetism, even over around ten years – the decrease in power is only ~1% (theoretically),
  • Neodymium magnets remain remarkably resistant to demagnetization caused by external interference,
  • Thanks to the glossy finish, the surface of nickel, gold, or silver-plated gives an clean appearance,
  • Neodymium magnets create maximum magnetic induction on a small surface, which increases force concentration,
  • Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their shape) at temperatures up to 230°C and above...
  • Thanks to the ability of accurate forming and customization to individualized requirements, NdFeB magnets can be modeled in a broad palette of shapes and sizes, which makes them more universal,
  • Fundamental importance in innovative solutions – they are used in hard drives, motor assemblies, medical equipment, as well as modern systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Weaknesses

What to avoid - cons of neodymium magnets: tips and applications.
  • At strong impacts they can crack, therefore we recommend 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 lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
  • Due to the susceptibility of magnets to corrosion in a humid environment, we advise using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Due to limitations in producing nuts and complex forms in magnets, we propose using a housing - magnetic mount.
  • Possible danger resulting from small fragments of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, tiny parts of these products can complicate diagnosis medical when they are in the body.
  • Due to complex production process, their price is higher than average,

Holding force characteristics

Maximum lifting capacity of the magnet – what contributes to it?

Breakaway force is the result of a measurement for optimal configuration, including:
  • using a sheet made of high-permeability steel, acting as a magnetic yoke
  • whose transverse dimension is min. 10 mm
  • with a plane cleaned and smooth
  • with direct contact (without coatings)
  • during pulling in a direction perpendicular to the plane
  • at ambient temperature room level

Key elements affecting lifting force

In practice, the actual lifting capacity is determined by several key aspects, presented from most significant:
  • Gap between surfaces – every millimeter of separation (caused e.g. by veneer or unevenness) drastically reduces the magnet efficiency, often by half at just 0.5 mm.
  • Load vector – highest force is obtained only during pulling at a 90° angle. The shear force of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the attraction force (the magnet "punches through" it).
  • Chemical composition of the base – mild steel attracts best. Alloy steels lower magnetic properties and lifting capacity.
  • Base smoothness – the smoother and more polished the plate, the larger the contact zone and higher the lifting capacity. Unevenness creates an air distance.
  • Thermal environment – temperature increase causes a temporary drop of induction. It is worth remembering the maximum operating temperature for a given model.

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a slight gap between the magnet’s surface and the plate decreases the holding force.

H&S for magnets
Warning for allergy sufferers

Some people experience a hypersensitivity to nickel, which is the common plating for neodymium magnets. Extended handling might lead to skin redness. We suggest wear safety gloves.

Fragile material

Despite the nickel coating, the material is brittle and not impact-resistant. Avoid impacts, as the magnet may shatter into hazardous fragments.

This is not a toy

Strictly store magnets away from children. Choking hazard is significant, and the consequences of magnets connecting inside the body are tragic.

Powerful field

Use magnets with awareness. Their immense force can shock even experienced users. Stay alert and respect their force.

Crushing force

Big blocks can smash fingers instantly. Never place your hand betwixt two strong magnets.

Fire warning

Powder created during machining of magnets is flammable. Do not drill into magnets unless you are an expert.

Permanent damage

Avoid heat. NdFeB magnets are susceptible to temperature. If you require resistance above 80°C, look for HT versions (H, SH, UH).

Cards and drives

Avoid bringing magnets close to a wallet, laptop, or screen. The magnetism can irreversibly ruin these devices and wipe information from cards.

GPS and phone interference

Remember: rare earth magnets produce a field that confuses sensitive sensors. Maintain a safe distance from your phone, tablet, and navigation systems.

Implant safety

Medical warning: Strong magnets can turn off heart devices and defibrillators. Do not approach if you have medical devices.

Attention! Learn more about hazards in the article: Safety of working with magnets.