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KM HF - 22 kg - magnetic bracket

magnetic bracket

Catalog no 170257

GTIN/EAN: 5906301813699

5.00

Weight

593 g

Load capacity

22.00 kg / 215.75 N

product parameters »

29.52 ZŁ with VAT / pcs + price for transport

24.00 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety
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Force along with structure of a magnet can be estimated with our modular calculator.

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Technical of the product - KM HF - 22 kg - magnetic bracket

Specification / characteristics - KM HF - 22 kg - magnetic bracket

properties
properties values
Cat. no. 170257
GTIN/EAN 5906301813699
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 593 g
Load capacity ~ ? 22.00 kg / 215.75 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
Engineering data and GPSR
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: 170257-2026
Magnet Unit Converter
Magnet pull force
Magnetic Induction
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This holder allows precise positioning of pipes, profiles, and flat bars before welding, without needing a helper. Thanks to it, you can freely set elements at an angle and perform tack welding.
Some versions also allow setting angles of 30°, 60°, or 75°, increasing their versatility. It can be used not only for welding but also for soldering, assembly, marking out, and laying out structures.
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).
This function drastically facilitates work, positioning, and removing the holder after welding. Cleaning a regular magnet from chips is difficult and tedious, here it takes a second. It is a function highly valued by professionals, saving time and nerves.
Holding force depends on the thickness and shape of the welded element and the angle of application. For heavy gates, posts, and long pipes, we recommend the largest squares (34kg and more), often used in pairs.

Pros as well as cons of rare earth magnets.

Benefits

Apart from their strong power, neodymium magnets have these key benefits:
  • They retain attractive force for almost ten years – the drop is just ~1% (in theory),
  • Neodymium magnets are characterized by exceptionally resistant to demagnetization caused by external field sources,
  • In other words, due to the reflective surface of silver, the element becomes visually attractive,
  • Magnets are characterized by huge magnetic induction on the active area,
  • 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...
  • Possibility of detailed modeling and adapting to individual requirements,
  • Fundamental importance in electronics industry – they are utilized in computer drives, electric motors, medical devices, also industrial machines.
  • Thanks to efficiency per cm³, small magnets offer high operating force, in miniature format,

Limitations

Disadvantages of neodymium magnets:
  • At very strong impacts they can break, therefore we advise placing them in special holders. 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 power. Often, when the temperature exceeds 80°C, their strength 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
  • They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in realizing nuts and complex forms in magnets, we recommend using a housing - magnetic mount.
  • Possible danger related to microscopic parts of magnets are risky, when accidentally swallowed, which is particularly important in the context of child health protection. Additionally, small components of these devices can 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 can limit application in large quantities

Holding force characteristics

Optimal lifting capacity of a neodymium magnet – what affects it?

Information about lifting capacity was defined for optimal configuration, including:
  • using a base made of low-carbon steel, serving as a circuit closing element
  • with a cross-section no less than 10 mm
  • with a plane free of scratches
  • with zero gap (without coatings)
  • for force acting at a right angle (pull-off, not shear)
  • at ambient temperature room level

Key elements affecting lifting force

In practice, the actual lifting capacity is determined by a number of factors, listed from the most important:
  • Clearance – the presence of foreign body (rust, tape, air) interrupts the magnetic circuit, which lowers capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – note that the magnet has greatest strength perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – too thin plate does not close the flux, causing part of the power to be lost into the air.
  • Plate material – low-carbon steel attracts best. Higher carbon content decrease magnetic properties and holding force.
  • Smoothness – ideal contact is obtained only on polished steel. Any scratches and bumps create air cushions, reducing force.
  • Temperature – temperature increase causes a temporary drop of force. It is worth remembering the thermal limit for a given model.

Lifting capacity was assessed by applying a polished steel plate of optimal thickness (min. 20 mm), under perpendicular detachment force, whereas under parallel forces the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate reduces the holding force.

Warnings
Precision electronics

A powerful magnetic field interferes with the operation of magnetometers in smartphones and navigation systems. Keep magnets close to a device to avoid damaging the sensors.

Power loss in heat

Monitor thermal conditions. Exposing the magnet above 80 degrees Celsius will permanently weaken its properties and strength.

Data carriers

Very strong magnetic fields can erase data on payment cards, hard drives, and storage devices. Stay away of min. 10 cm.

Dust is flammable

Mechanical processing of neodymium magnets carries a risk of fire risk. Magnetic powder oxidizes rapidly with oxygen and is hard to extinguish.

Product not for children

Only for adults. Small elements can be swallowed, leading to severe trauma. Keep away from kids and pets.

Danger to pacemakers

Medical warning: Strong magnets can deactivate pacemakers and defibrillators. Do not approach if you have electronic implants.

Caution required

Handle magnets with awareness. Their powerful strength can surprise even experienced users. Stay alert and respect their power.

Magnets are brittle

Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Metal Allergy

Allergy Notice: The nickel-copper-nickel coating contains nickel. If an allergic reaction occurs, immediately stop working with magnets and use protective gear.

Serious injuries

Big blocks can smash fingers in a fraction of a second. Never put your hand betwixt two strong magnets.

Caution! Need more info? Check our post: Are neodymium magnets dangerous?