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neodymium magnets

We offer blue color magnetic Nd2Fe14B - our proposal. Practically all magnesy neodymowe in our store are in stock for immediate delivery (see the list). See the magnet price list for more details check the magnet price list

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ZM XMAG2 105 elementów - magnetic toy

magnetic toy

Catalog no 040211

GTIN: 5906301812371

5

Weight

569 g

49.20 with VAT / pcs + price for transport

40.00 ZŁ net + 23% VAT / pcs

bulk discounts:

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Force and form of a neodymium magnet can be tested with our magnetic calculator.

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ZM XMAG2 105 elementów - magnetic toy
Specification/characteristics ZM XMAG2 105 elementów - magnetic toy
properties
values
Cat. no.
040211
GTIN
5906301812371
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Weight
569 g [±0,1 mm]
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

These blocks practically teach geometry, physics, and creative thinking, allowing understanding of 3D structures. It enables constructing chemical and architectural models, making it a great teaching aid. Building requires focus and planning, which positively affects concentration.
Safety is our priority, which is why the product meets rigorous safety standards (CE, EN71). The set includes small elements, which excludes play by infants and children putting objects in their mouths. We warn against the risk of swallowing magnets and recommend playing under adult supervision.
The sticks and balls fit sets from other popular brands with the same dimensional standard. The elements have a standard size: stick length 27 mm and ball diameter 12.7 mm. This allows for creating even larger structures by combining old sets with new XMAG².
In the package, you will find magnetic rods serving as edges and metal balls being the nodes of the structure. It is worth knowing that the balls are not magnets, but only ferromagnetic elements connecting the sticks. The ZM XMAG2 105 elementów set weighing 569 g ensures an appropriate number of elements to start.
Cheap knock-offs often have weak magnets, making it impossible to build stable solids. XMAG² sticks guarantee durable connections even with complicated bridges. We care about build quality, which ensures a long life of the toy

Advantages as well as disadvantages of rare earth magnets.

Apart from their notable holding force, neodymium magnets have these key benefits:

  • They do not lose strength, even during nearly 10 years – the decrease in power is only ~1% (based on measurements),
  • They are extremely resistant to demagnetization induced by external disturbances,
  • The use of an elegant finish of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
  • Thanks to resistance to high temperature, they are capable of working (depending on the form) even at temperatures up to 230°C and higher...
  • Possibility of individual modeling as well as adapting to specific requirements,
  • Wide application in advanced technology sectors – they are commonly used in magnetic memories, electric motors, medical equipment, as well as other advanced devices.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Drawbacks and weaknesses of neodymium magnets and ways of using them

  • At very strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets suffer a drop in force. Often, when the temperature exceeds 80°C, their power decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, in case of application outdoors
  • Limited possibility of making threads in the magnet and complicated forms - recommended is cover - magnet mounting.
  • Possible danger related to microscopic parts of magnets can be dangerous, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these products are able to disrupt the diagnostic process medical in case of swallowing.
  • With large orders the cost of neodymium magnets is economically unviable,

Breakaway strength of the magnet in ideal conditionswhat contributes to it?

The lifting capacity listed is a theoretical maximum value performed under specific, ideal conditions:

  • using a base made of mild steel, functioning as a magnetic yoke
  • with a thickness of at least 10 mm
  • characterized by even structure
  • without the slightest insulating layer between the magnet and steel
  • under vertical force vector (90-degree angle)
  • at room temperature

Practical aspects of lifting capacity – factors

Real force is affected by working environment parameters, such as (from priority):

  • Distance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity steeply (even by 50% at 0.5 mm).
  • Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet holds significantly lower power (typically approx. 20-30% of maximum force).
  • Metal thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
  • Metal type – different alloys attracts identically. High carbon content weaken the interaction with the magnet.
  • Plate texture – ground elements ensure maximum contact, which improves field saturation. Uneven metal weaken the grip.
  • Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

* Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, however under parallel forces the holding force is lower. Additionally, even a minimal clearance {between} the magnet and the plate decreases the lifting capacity.

Safety rules for work with NdFeB magnets

Machining danger

Drilling and cutting of NdFeB material poses a fire hazard. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.

Handling guide

Before use, read the rules. Sudden snapping can destroy the magnet or injure your hand. Be predictive.

Danger to the youngest

Neodymium magnets are not suitable for play. Eating multiple magnets may result in them connecting inside the digestive tract, which constitutes a direct threat to life and necessitates immediate surgery.

GPS and phone interference

An intense magnetic field negatively affects the functioning of magnetometers in smartphones and navigation systems. Keep magnets near a device to avoid damaging the sensors.

Risk of cracking

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Collision of two magnets will cause them breaking into small pieces.

Crushing force

Big blocks can crush fingers instantly. Never put your hand between two strong magnets.

Safe distance

Device Safety: Strong magnets can ruin data carriers and sensitive devices (pacemakers, hearing aids, timepieces).

Sensitization to coating

Medical facts indicate that nickel (standard magnet coating) is a common allergen. If your skin reacts to metals, refrain from touching magnets with bare hands or opt for encased magnets.

Danger to pacemakers

Life threat: Strong magnets can deactivate heart devices and defibrillators. Do not approach if you have medical devices.

Do not overheat magnets

Standard neodymium magnets (N-type) lose magnetization when the temperature goes above 80°C. Damage is permanent.

Danger!

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

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98