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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

How we measure these parameters — certificates and measurements

see properties »

0.800 zł net / pcs

0.984 zł with VAT (23% VAT) / pcs

price for transport

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Frequently asked questions

How much will a magnetic holder hold in practice?
The catalogue value assumes full contact with smooth steel at least 10 mm thick and a perpendicular pull. Thinner sheet, paint, rust and surface irregularities reduce it considerably: on 1 mm sheet about half remains. Lifting and vertical mounting call for an additional safety margin.
Will a holder work on stainless steel?
Not on austenitic grades 304 and 316 — they are effectively non-magnetic. It will not work on aluminium, copper or brass either. Those materials need a mechanical gripper.
Which coating for which conditions?
Nickel-copper-nickel (NiCuNi) is the standard and covers most applications. Epoxy is used for damp environments and outdoor work, zinc is sufficient for dry interiors. Holders in a steel housing or in rubber also protect the magnet against impact.

Guides from the knowledge base

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Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Detailed specification - 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 310 °C
Curie Temperature TF 590 °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

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%

Environmental data

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
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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 is the most frequently chosen type of fastening in corporations, hotels, and banks.
The set includes a strip with magnets (put under clothes) and a steel plate with tape (on the outside). The outer part has strong 3M foam tape, to which a business card or plastic case is stuck. The plastic magnet housing is pleasant to the touch, smooth, and safe for the user.
Attraction force is sufficient to hold the badge even on winter clothing. A larger number of magnetic points prevents the badge from twisting.
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.

Advantages as well as disadvantages of rare earth magnets.

Pros

Besides their exceptional pulling force, neodymium magnets offer the following advantages:
  • They virtually do not lose strength, because even after ten years the performance loss is only ~1% (according to literature),
  • Magnets effectively resist against demagnetization caused by external fields,
  • Thanks to the shiny finish, the surface of nickel, gold-plated, or silver-plated gives an visually attractive appearance,
  • Neodymium magnets generate maximum magnetic induction on a their surface, which increases force concentration,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Thanks to versatility in forming and the ability to modify to individual projects,
  • Significant place in electronics industry – they serve a role in magnetic memories, electric drive systems, medical equipment, also multitasking production systems.
  • Thanks to their power density, small magnets offer high operating force, occupying minimum space,

Limitations

Characteristics of disadvantages of neodymium magnets: weaknesses and usage proposals
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets using a steel holder. Such protection not only protects the magnet but also increases its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer a drop in strength. Often, when the temperature exceeds 80°C, their power 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
  • When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation as well as corrosion.
  • Due to limitations in creating threads and complex shapes in magnets, we propose using cover - magnetic mechanism.
  • Health risk to health – tiny shards of magnets are risky, if swallowed, which is particularly important in the aspect of protecting the youngest. It is also worth noting that small elements of these products can complicate diagnosis medical in case of swallowing.
  • Due to expensive raw materials, their price is higher than average,

Lifting parameters

Best holding force of the magnet in ideal parameters – what contributes to it?

The declared magnet strength refers to the limit force, measured under laboratory conditions, meaning:
  • with the application of a sheet made of special test steel, ensuring full magnetic saturation
  • whose transverse dimension reaches at least 10 mm
  • with a surface cleaned and smooth
  • under conditions of gap-free contact (surface-to-surface)
  • during detachment in a direction perpendicular to the mounting surface
  • in stable room temperature

Impact of factors on magnetic holding capacity in practice

Effective lifting capacity is affected by specific conditions, such as (from most important):
  • Distance – the presence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Direction of force – highest force is obtained only during pulling at a 90° angle. The force required to slide of the magnet along the surface is usually many times lower (approx. 1/5 of the lifting capacity).
  • Base massiveness – insufficiently thick plate does not close the flux, causing part of the power to be lost to the other side.
  • Material type – the best choice is high-permeability steel. Cast iron may attract less.
  • Smoothness – full contact is obtained only on smooth steel. Rough texture reduce the real contact area, reducing force.
  • Temperature influence – hot environment reduces pulling force. Too high temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under shearing force the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet and the plate decreases the lifting capacity.

Safety rules for work with NdFeB magnets
Fragile material

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

Safe operation

Handle with care. Rare earth magnets act from a distance and connect with massive power, often faster than you can move away.

Electronic devices

Intense magnetic fields can erase data on payment cards, hard drives, and storage devices. Keep a distance of min. 10 cm.

Life threat

Warning for patients: Strong magnetic fields disrupt electronics. Keep at least 30 cm distance or ask another person to work with the magnets.

Do not overheat magnets

Standard neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. Damage is permanent.

No play value

Strictly keep magnets out of reach of children. Choking hazard is high, and the effects of magnets connecting inside the body are tragic.

GPS Danger

Note: neodymium magnets generate a field that disrupts sensitive sensors. Keep a separation from your mobile, device, and navigation systems.

Bone fractures

Large magnets can break fingers in a fraction of a second. Do not put your hand betwixt two attracting surfaces.

Sensitization to coating

A percentage of the population suffer from a sensitization to nickel, which is the typical protective layer for NdFeB magnets. Prolonged contact might lead to an allergic reaction. We strongly advise wear protective gloves.

Machining danger

Machining of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is hard to extinguish.

Security! More info about risks in the article: Magnet Safety Guide.