← previous
next →
Product available Ships tomorrow CO2 GPSR PPWR REACH

NCM 20x13.5x5 / N38 - channel magnetic holder

channel magnetic holder

Catalog no 360487

GTIN/EAN: 5906301814863

5.00
Load capacity 8.00 kg / 78.45 N
Diameter Ø
20 mm [±1 mm]
Height
13.5 mm [±1 mm]
Weight
9.2 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

check technical specifications »

5.93 zł net / pcs

7.29 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
5.93 zł
7.29 zł
price from 150 pcs
5.57 zł
6.86 zł
price from 300 pcs
5.22 zł
6.42 zł

Frequently asked questions

How much will a magnetic holder hold in practice?
The catalogue value assumes full contact with smooth steel at least 10 mm thick and a perpendicular pull. Thinner sheet, paint, rust and surface irregularities reduce it considerably: on 1 mm sheet about half remains. Lifting and vertical mounting call for an additional safety margin.
Will a holder work on stainless steel?
Not on austenitic grades 304 and 316 — they are effectively non-magnetic. It will not work on aluminium, copper or brass either. Those materials need a mechanical gripper.
Which coating for which conditions?
Nickel-copper-nickel (NiCuNi) is the standard and covers most applications. Epoxy is used for damp environments and outdoor work, zinc is sufficient for dry interiors. Holders in a steel housing or in rubber also protect the magnet against impact.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

Order by 14:00 and we’ll ship today!

Technical data - NCM 20x13.5x5 / N38 - channel magnetic holder

Specification / characteristics - NCM 20x13.5x5 / N38 - channel magnetic holder

properties
properties values
Cat. no. 360487
GTIN/EAN 5906301814863
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 20 mm [±1 mm]
Height 13.5 mm [±1 mm]
Weight 9.2 g
Magnetization Direction ↑ axial
Load capacity ~ ? 8.00 kg / 78.45 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics NCM 20x13.5x5 / 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 310 °C
Curie Temperature TF 590 °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

Material specification

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%

Environmental data

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: 360487-2026
Quick Unit Converter

Pulling force

Magnetic Field

Just fill in a single box, to let the converter compute the rest instantly.

See more deals

MW 12x4 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 12x4 / N38 - cylindrical magnet

1.353 zł brutto / pcs
MPL 15x5x5 / N38 - lamellar magnet
Product available Ships tomorrow

MPL 15x5x5 / N38 - lamellar magnet

1.390 zł brutto / pcs
MW 55x25 / N38 - cylindrical magnet
Product available Ships tomorrow

MW 55x25 / N38 - cylindrical magnet

154.21 zł brutto / pcs
HH 20x7.2 [M4] / N38 - through hole magnetic holder
Product available Ships tomorrow

HH 20x7.2 [M4] / N38 - through hole magnetic holder

6.40 zł brutto / pcs
Thanks to two poles on one plane, this holder holds much stronger than a regular block magnet of the same size. They are characterized by high capacity and resistance to mechanical impacts.
These holders usually have one or two mounting holes with a chamfer (conical), which allows their stable screwing. They can be screwed to wood, walls, aluminum profiles, furniture boards, or plastics.
Channel holders are characterized by an exceptionally high force-to-size ratio. This force is available with direct contact with metal over the entire surface.
Magnets are shielded on three sides by steel, increasing their lifespan and crack resistance. They are ideal for heavy doors, machine flaps, molds, and fastening systems in industry.
The steel housing is usually galvanized, providing basic protection against corrosion. With constant contact with water, corrosion may appear, so we do not recommend them for work in rain without additional protection.

Advantages and disadvantages of rare earth magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:
  • They retain full power for nearly ten years – the drop is just ~1% (according to analyses),
  • Neodymium magnets are characterized by exceptionally resistant to loss of magnetic properties caused by external magnetic fields,
  • The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to present itself better,
  • Magnets possess huge magnetic induction on the working surface,
  • 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 shaping as well as optimizing to defined needs,
  • Fundamental importance in future technologies – they are used in hard drives, electric motors, diagnostic systems, as well as modern systems.
  • Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages

Characteristics of disadvantages of neodymium magnets: tips and applications.
  • They are fragile upon heavy impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets suffer 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
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
  • We recommend a housing - magnetic holder, due to difficulties in producing nuts inside the magnet and complex forms.
  • Potential hazard resulting from small fragments of magnets can be dangerous, if swallowed, which becomes key in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products are able to disrupt the diagnostic process medical when they are in the body.
  • Due to complex production process, their price is relatively high,

Holding force characteristics

Detachment force of the magnet in optimal conditions – what it depends on?

Information about lifting capacity was determined for the most favorable conditions, including:
  • on a block made of mild steel, optimally conducting the magnetic flux
  • whose thickness equals approx. 10 mm
  • characterized by smoothness
  • with total lack of distance (without paint)
  • during detachment in a direction perpendicular to the mounting surface
  • at conditions approx. 20°C

Magnet lifting force in use – key factors

Holding efficiency is influenced by specific conditions, such as (from most important):
  • Clearance – existence of any layer (rust, tape, air) interrupts the magnetic circuit, which lowers power rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet exhibits much less (typically approx. 20-30% of nominal force).
  • Steel thickness – too thin sheet does not accept the full field, causing part of the flux to be lost to the other side.
  • Plate material – low-carbon steel attracts best. Alloy steels reduce magnetic properties and holding force.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
  • Thermal factor – high temperature reduces pulling force. Too high temperature can permanently demagnetize the magnet.

Holding force was tested on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. Additionally, even a small distance between the magnet’s surface and the plate lowers the holding force.

H&S for magnets
Fragile material

Despite the nickel coating, the material is delicate and cannot withstand shocks. Do not hit, as the magnet may shatter into sharp, dangerous pieces.

Maximum temperature

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

Allergic reactions

Studies show that the nickel plating (the usual finish) is a strong allergen. If your skin reacts to metals, refrain from direct skin contact or select coated magnets.

Mechanical processing

Fire warning: Neodymium dust is explosive. Avoid machining magnets without safety gear as this risks ignition.

Life threat

Individuals with a pacemaker must maintain an safe separation from magnets. The magnetism can stop the operation of the implant.

Crushing force

Watch your fingers. Two powerful magnets will snap together instantly with a force of massive weight, crushing anything in their path. Be careful!

This is not a toy

Strictly store magnets away from children. Choking hazard is significant, and the effects of magnets clamping inside the body are very dangerous.

Phone sensors

Remember: neodymium magnets produce a field that confuses precision electronics. Keep a safe distance from your mobile, device, and GPS.

Immense force

Use magnets with awareness. Their immense force can shock even experienced users. Stay alert and respect their power.

Data carriers

Powerful magnetic fields can destroy records on payment cards, HDDs, and other magnetic media. Stay away of at least 10 cm.

Important! Learn more about risks in the article: Magnet Safety Guide.