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KM HF - 11,3 kg - magnetic bracket

magnetic bracket

Catalog no 170256

GTIN/EAN: 5906301813682

5.00

Weight

304 g

Load capacity

11.30 kg / 110.82 N

24.60 with VAT / pcs + price for transport

20.00 ZŁ net + 23% VAT / pcs

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KM HF - 11,3 kg - magnetic bracket

Specification / characteristics KM HF - 11,3 kg - magnetic bracket

properties
properties values
Cat. no. 170256
GTIN/EAN 5906301813682
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Weight 304 g
Load capacity ~ ? 11.30 kg / 110.82 N
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 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 specification and ecology
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%
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: 170256-2025
Measurement Calculator
Pulling force

Field Strength

Check out also products

This tool eliminates the need to hold details in hands, increasing work safety and precision. It is essential equipment for every locksmith, welder, and DIY enthusiast.
Most squares (including this model) allow quick setting of elements at angles of 45°, 90°, and 135°. The housing shape (often with a special notch) allows gripping both flat profiles as well as pipes or shafts.
For welding close to the seam and large elements, we recommend solid ferrite versions. Neodymium squares are smaller, lighter, and much stronger, but more sensitive to overheating (usually up to 80°C).
Thanks to the switch, you can precisely position the holder without struggling with the magnet, and then turn it on with one hand. Lack of filings on the surface guarantees perfect adherence and angle precision on next use. It is a function highly valued by professionals, saving time and nerves.
The capacity given in the description (e.g., 11kg, 22kg, 34kg) refers to the force needed to detach the magnet from thick steel in ideal conditions. Model KM HF - 11,3 kg is intended for medium and heavy workshop works, ensuring structural stability.

Pros and cons of neodymium magnets.

Advantages
In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They retain magnetic properties for nearly 10 years – the drop is just ~1% (in theory),
  • Magnets very well protect themselves against loss of magnetization caused by external fields,
  • The use of an elegant layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
  • Neodymium magnets achieve maximum magnetic induction on a contact point, which ensures high operational effectiveness,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can function (depending on the form) even at a temperature of 230°C or more...
  • In view of the possibility of precise molding and customization to specialized projects, NdFeB magnets can be produced in a wide range of shapes and sizes, which increases their versatility,
  • Fundamental importance in high-tech industry – they serve a role in data components, motor assemblies, medical devices, also industrial machines.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications
Weaknesses
Disadvantages of neodymium magnets:
  • Brittleness is one of their disadvantages. Upon strong impact they can fracture. We advise keeping them in a special holder, which not only protects them against impacts but also raises their durability
  • When exposed to high temperature, neodymium magnets experience a drop in power. 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • We recommend a housing - magnetic holder, due to difficulties in realizing threads inside the magnet and complex forms.
  • Health risk to health – tiny shards of magnets pose a threat, when accidentally swallowed, which gains importance in the context of child safety. It is also worth noting that small components of these magnets are able to be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Pull force analysis

Maximum lifting force for a neodymium magnet – what it depends on?
Breakaway force was determined for the most favorable conditions, taking into account:
  • on a block made of structural steel, optimally conducting the magnetic field
  • possessing a massiveness of at least 10 mm to ensure full flux closure
  • characterized by lack of roughness
  • without any clearance between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • in temp. approx. 20°C
Practical aspects of lifting capacity – factors
Effective lifting capacity is affected by working environment parameters, including (from most important):
  • Clearance – existence of any layer (paint, dirt, gap) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits much less (often approx. 20-30% of maximum force).
  • Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
  • Material composition – not every steel reacts the same. High carbon content weaken the attraction effect.
  • Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Unevenness creates an air distance.
  • Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.

Lifting capacity was assessed using a steel plate with a smooth surface of optimal thickness (min. 20 mm), under vertically applied force, however under attempts to slide the magnet the holding force is lower. Moreover, even a slight gap between the magnet’s surface and the plate decreases the lifting capacity.

Safe handling of NdFeB magnets
Magnetic media

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

Respect the power

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

Nickel allergy

Studies show that nickel (the usual finish) is a common allergen. For allergy sufferers, avoid direct skin contact or choose encased magnets.

Fire risk

Drilling and cutting of neodymium magnets carries a risk of fire hazard. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Thermal limits

Regular neodymium magnets (grade N) lose power when the temperature goes above 80°C. This process is irreversible.

GPS Danger

Remember: rare earth magnets generate a field that disrupts precision electronics. Maintain a safe distance from your mobile, tablet, and navigation systems.

Eye protection

Neodymium magnets are ceramic materials, meaning they are very brittle. Impact of two magnets will cause them cracking into shards.

Hand protection

Risk of injury: The attraction force is so great that it can cause hematomas, crushing, and even bone fractures. Use thick gloves.

Warning for heart patients

Warning for patients: Strong magnetic fields disrupt electronics. Keep minimum 30 cm distance or request help to work with the magnets.

Choking Hazard

Adult use only. Tiny parts can be swallowed, causing intestinal necrosis. Store out of reach of kids and pets.

Security! More info 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