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NCM 10x13.5x5 / N38 - channel magnetic holder

channel magnetic holder

Catalog no 360485

GTIN/EAN: 5906301814849

5.00

Diameter Ø

10 mm [±1 mm]

Height

13.5 mm [±1 mm]

Weight

4.5 g

Magnetization Direction

↑ axial

Load capacity

4.00 kg / 39.23 N

Coating

[NiCuNi] Nickel

3.39 with VAT / pcs + price for transport

2.76 ZŁ net + 23% VAT / pcs

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Technical details - NCM 10x13.5x5 / N38 - channel magnetic holder

Specification / characteristics - NCM 10x13.5x5 / N38 - channel magnetic holder

properties
properties values
Cat. no. 360485
GTIN/EAN 5906301814849
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 10 mm [±1 mm]
Height 13.5 mm [±1 mm]
Weight 4.5 g
Magnetization Direction ↑ axial
Load capacity ~ ? 4.00 kg / 39.23 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics NCM 10x13.5x5 / N38 - channel magnetic holder
properties values units
remenance Br [min. - max.] ? 12.2-12.6 kGs
remenance Br [min. - max.] ? 1220-1260 mT
coercivity bHc ? 10.8-11.5 kOe
coercivity bHc ? 860-915 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 36-38 BH max MGOe
energy density [min. - max.] ? 287-303 BH max KJ/m
max. temperature ? ≤ 80 °C

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 and environmental data
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: 360485-2025
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Magnet pull force

Field Strength

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Channel holders are some of the most efficient mounting magnets, built based on a steel U-profile (trough). They are characterized by high capacity and resistance to mechanical impacts.
Mounting is done using countersunk head screws, which hide flat in the housing. Hole spacing allows secure fixing even in difficult conditions.
Thanks to the short-circuiting of the magnetic field by steel side walls, holding force is concentrated and very large. This force is available with direct contact with metal over the entire surface.
The construction is mechanically very robust, allowing use in difficult workshop and industrial conditions. Thanks to solid construction, these holders do not crack as easily as bare neodymium plates.
The product is intended mainly for indoor use (dry rooms). In dry rooms, holders are practically indestructible.

Pros and cons of neodymium magnets.

Strengths

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:
  • They retain magnetic properties for nearly ten years – the loss is just ~1% (according to analyses),
  • They are noted for resistance to demagnetization induced by external disturbances,
  • Thanks to the glossy finish, the surface of Ni-Cu-Ni, gold, or silver gives an modern appearance,
  • The surface of neodymium magnets generates a powerful magnetic field – this is a key feature,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Thanks to freedom in constructing and the ability to modify to unusual requirements,
  • Significant place in high-tech industry – they find application in HDD drives, electric motors, advanced medical instruments, as well as modern systems.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in compact constructions

Weaknesses

Characteristics of disadvantages of neodymium magnets and ways of using them
  • Brittleness is one of their disadvantages. Upon intense impact they can break. We advise keeping them in a steel housing, which not only protects them against impacts but also increases their durability
  • 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, when using outdoors
  • Limited ability of creating threads in the magnet and complicated shapes - recommended is a housing - magnet mounting.
  • Potential hazard related to microscopic parts of magnets pose a threat, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that small components of these products can be problematic in diagnostics medical after entering the body.
  • Due to neodymium price, their price is relatively high,

Holding force characteristics

Highest magnetic holding forcewhat contributes to it?

Information about lifting capacity is the result of a measurement for the most favorable conditions, including:
  • with the application of a yoke made of low-carbon steel, ensuring full magnetic saturation
  • whose transverse dimension equals approx. 10 mm
  • characterized by even structure
  • under conditions of gap-free contact (metal-to-metal)
  • for force acting at a right angle (pull-off, not shear)
  • in neutral thermal conditions

Impact of factors on magnetic holding capacity in practice

Please note that the application force will differ depending on elements below, starting with the most relevant:
  • Gap between magnet and steel – every millimeter of distance (caused e.g. by varnish or unevenness) significantly weakens the magnet efficiency, often by half at just 0.5 mm.
  • Direction of force – maximum parameter is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
  • Metal type – different alloys attracts identically. High carbon content worsen the interaction with the magnet.
  • Surface quality – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
  • Temperature – temperature increase causes a temporary drop of force. Check the maximum operating temperature for a given model.

Holding force was measured on the plate surface of 20 mm thickness, when a perpendicular force was applied, whereas under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet’s surface and the plate reduces the holding force.

Precautions when working with neodymium magnets
Warning for heart patients

Individuals with a heart stimulator should maintain an safe separation from magnets. The magnetism can stop the functioning of the life-saving device.

Fragile material

Watch out for shards. Magnets can explode upon violent connection, ejecting shards into the air. Eye protection is mandatory.

Skin irritation risks

It is widely known that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from touching magnets with bare hands or choose versions in plastic housing.

Powerful field

Be careful. Rare earth magnets act from a long distance and snap with massive power, often quicker than you can react.

Crushing risk

Big blocks can crush fingers in a fraction of a second. Do not place your hand between two attracting surfaces.

Adults only

Always keep magnets out of reach of children. Risk of swallowing is high, and the effects of magnets connecting inside the body are very dangerous.

Heat warning

Regular neodymium magnets (grade N) lose magnetization when the temperature exceeds 80°C. The loss of strength is permanent.

Protect data

Avoid bringing magnets near a purse, laptop, or TV. The magnetism can permanently damage these devices and wipe information from cards.

Keep away from electronics

An intense magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Maintain magnets close to a smartphone to prevent breaking the sensors.

Machining danger

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

Caution! Learn more 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