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neodymium magnets

We offer blue color magnetic Nd2Fe14B - our offer. All "neodymium magnets" on our website are available for immediate delivery (see the list). Check out the magnet price list for more details see the magnet price list

Magnets for water searching F300 GOLD

Where to purchase strong magnet? Holders with magnets in solid and airtight steel enclosure are perfect for use in variable and difficult weather conditions, including during snow and rain see

magnets with holders

Holders with magnets can be applied to improve manufacturing, underwater discoveries, or finding meteors made of ore more information...

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AM ucho [M12] - magnetic accessories

magnetic accessories

Catalog no 080347

GTIN: 5906301812500

5

Weight

101.5 g

Load capacity

480 kg / 4707.19 N

9.84 with VAT / pcs + price for transport

8.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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price from 1 pcs
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Parameters and form of neodymium magnets can be reviewed using our force calculator.

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AM ucho [M12] - magnetic accessories
Specification/characteristics AM ucho [M12] - magnetic accessories
properties
values
Cat. no.
080347
GTIN
5906301812500
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Weight
101.5 g [±0,1 mm]
Load capacity ~ ?
480 kg / 4707.19 N
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material

properties
values
units

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 106
°C-1
Thermal expansion perpendicular (⊥) to orientation (M)
-(1-3) x 10-6
°C-1
Young's modulus
1.7 x 104
kg/mm²

Shopping tips

This category contains replaceable tips, adapters, and fasteners for magnets. We offer, among others: various types of hooks, eye bolts (shackles), steel plates (washers), and rubber covers. Thanks to these additions, you can adapt any magnetic holder to your individual needs.
The plate serves as a base (armature) to which the magnet will attach. Mounting consists of gluing or screwing the washer to a non-magnetic substrate. It's an ideal solution for closing cabinets, hanging tools, or mounting smoke detectors.
Our accessories are compatible with holders having standard metric threads (ISO). Before purchase, check the thread size in your magnetic holder (it is given in the description). Most elements are protected against rust by galvanic zinc.
The cap increases friction (coefficient of friction), preventing the magnet from sliding down a vertical wall. They are ideal when you want to attach a magnet to car paint, a fridge, or furniture. An additional layer of rubber weakens attraction slightly but drastically increases shear force (sliding resistance).
We supply manufacturing companies, advertising agencies, and workshops with necessary mounting accessories. Contact us to get a wholesale offer for hooks and holders. Most goods are available off-the-shelf in our warehouse, guaranteeing fast delivery.

Advantages as well as disadvantages of rare earth magnets.

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

  • They do not lose magnetism, even during around ten years – the reduction in strength is only ~1% (according to tests),
  • They possess excellent resistance to magnetic field loss as a result of external magnetic sources,
  • The use of an shiny layer of noble metals (nickel, gold, silver) causes the element to look better,
  • They feature high magnetic induction at the operating surface, which improves attraction properties,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Considering the ability of free shaping and customization to specialized needs, magnetic components can be manufactured in a wide range of geometric configurations, which expands the range of possible applications,
  • Wide application in future technologies – they serve a role in data components, electric motors, medical devices, also multitasking production systems.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Disadvantages of NdFeB magnets:

  • To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in creating threads and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
  • Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. Additionally, small components of these products can disrupt the diagnostic process medical after entering the body.
  • Due to complex production process, their price exceeds standard values,

Maximum lifting capacity of the magnetwhat affects it?

Magnet power was determined for ideal contact conditions, including:

  • on a base made of structural steel, optimally conducting the magnetic field
  • with a cross-section no less than 10 mm
  • with a plane cleaned and smooth
  • without any clearance between the magnet and steel
  • during detachment in a direction vertical to the plane
  • at room temperature

Determinants of lifting force in real conditions

Please note that the magnet holding will differ influenced by elements below, starting with the most relevant:

  • Clearance – existence of any layer (rust, tape, gap) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to detachment vertically. When applying parallel force, the magnet holds much less (typically approx. 20-30% of nominal force).
  • Element thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Steel type – mild steel attracts best. Higher carbon content decrease magnetic properties and holding force.
  • Surface finish – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
  • Thermal factor – high temperature weakens pulling force. Too high temperature can permanently demagnetize the magnet.

* Lifting capacity was assessed by applying a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular detachment force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as fivefold. Additionally, even a small distance {between} the magnet and the plate reduces the load capacity.

Warnings

Fragile material

Beware of splinters. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.

Flammability

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

Powerful field

Handle magnets consciously. Their immense force can surprise even professionals. Plan your moves and do not underestimate their power.

Product not for children

Adult use only. Small elements can be swallowed, leading to intestinal necrosis. Keep away from children and animals.

Magnetic media

Equipment safety: Neodymium magnets can damage data carriers and delicate electronics (heart implants, medical aids, timepieces).

Allergic reactions

Some people have a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Extended handling may cause a rash. We strongly advise use protective gloves.

Life threat

People with a ICD have to keep an large gap from magnets. The magnetism can stop the operation of the implant.

Heat warning

Control the heat. Heating the magnet to high heat will destroy its properties and strength.

Serious injuries

Large magnets can crush fingers in a fraction of a second. Never place your hand between two strong magnets.

Compass and GPS

Remember: neodymium magnets produce a field that interferes with sensitive sensors. Keep a separation from your phone, device, and navigation systems.

Security!

More info about risks in the article: Safety of working with magnets.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98