← previous
next →
Product available Ships today (order by 14:00) CO2 GPSR PPWR REACH

UMC 36x6/4X8 / N38 - cylindrical magnetic holder

cylindrical magnetic holder

Catalog no 320410

GTIN/EAN: 5906301814665

5.00
Load capacity 29.00 kg / 284.39 N
Diameter
36 mm [±1 mm]
internal diameter Ø
6/4 mm [±1 mm]
Height
8 mm [±1 mm]
Weight
45 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see technical specifications »

17.47 zł net / pcs

21.49 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
17.47 zł
21.49 zł
price from 30 pcs
16.42 zł
20.20 zł
price from 50 pcs
15.37 zł
18.91 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!

Physical properties - UMC 36x6/4X8 / N38 - cylindrical magnetic holder

Specification / characteristics - UMC 36x6/4X8 / N38 - cylindrical magnetic holder

properties
properties values
Cat. no. 320410
GTIN/EAN 5906301814665
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 36 mm [±1 mm]
internal diameter Ø 6/4 mm [±1 mm]
Height 8 mm [±1 mm]
Weight 45 g
Magnetization Direction ↑ axial
Load capacity ~ ? 29.00 kg / 284.39 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMC 36x6/4X8 / N38 - cylindrical magnetic holder
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working 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
Technical specification and ecology

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%

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: 320410-2026
Quick Unit Converter

Magnet pull force

Magnetic Field

Simply populate one field, and the calculator calculate everything else instantly.

Other offers

MW 9x3 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 9x3 / N38 - cylindrical magnet

1.132 zł brutto / pcs
NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube
Product available Ships today (order by 14:00)

NC NeoCube fi 5 mm kuleczki kolorowe / N38 - neocube

49.99 zł brutto / pcs
SMZR 25x150 / N52 - magnetic separator with handle
Product available Ships today (order by 14:00)

SMZR 25x150 / N52 - magnetic separator with handle

430.50 zł brutto / pcs
SM 25x150 [2xM8] / N42 - magnetic separator
Product available Ships today (order by 14:00)

SM 25x150 [2xM8] / N42 - magnetic separator

467.40 zł brutto / pcs
Cylindrical holders (Type B) distinguish themselves with a large body height, which allows for deep mounting. They are used in positioning elements, injection molds, dies, and automation.
These holders usually have an internal thread (blind or through) on the back wall. It is a precise, durable solution enabling depth adjustment.
The thick, steel or brass housing (sleeve) effectively screens the magnetic field on the sides of the holder. This is a key feature when mounting in steel sockets so the magnet doesn't "stick" to the hole walls during insertion.
The neodymium magnet is deeply embedded (glued) in a solid block of steel or brass, making it very resistant. Thanks to the solid build, the holder withstands repeated impacts and shocks during work cycles.
Dimensions may vary slightly, so they are not always H7 fitted elements without machining. If high precision is required, measure the specific batch with a caliper before machining sockets.

Pros and cons of neodymium magnets.

Advantages

Besides their magnetic performance, neodymium magnets are valued for these benefits:
  • They do not lose magnetism, even over nearly 10 years – the decrease in lifting capacity is only ~1% (according to tests),
  • Neodymium magnets are distinguished by highly resistant to demagnetization caused by magnetic disturbances,
  • A magnet with a shiny nickel surface has an effective appearance,
  • Magnets exhibit huge magnetic induction on the outer side,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to the possibility of accurate shaping and customization to individualized requirements, neodymium magnets can be created in a variety of shapes and sizes, which amplifies use scope,
  • Versatile presence in modern industrial fields – they are used in mass storage devices, electric drive systems, advanced medical instruments, as well as complex engineering applications.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which enables their usage in miniature devices

Weaknesses

Disadvantages of NdFeB magnets:
  • At very strong impacts they can crack, therefore we advise placing them in special holders. A metal housing provides additional protection against damage, as well as 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 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
  • They rust in a humid environment. For use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Due to limitations in producing nuts and complicated forms in magnets, we propose using a housing - magnetic mechanism.
  • Health risk resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Additionally, small elements of these devices are able to complicate diagnosis medical after entering the body.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Holding force characteristics

Magnetic strength at its maximum – what affects it?

The specified lifting capacity concerns the peak performance, obtained under laboratory conditions, namely:
  • on a plate made of structural steel, optimally conducting the magnetic flux
  • with a thickness of at least 10 mm
  • with an polished contact surface
  • with total lack of distance (no coatings)
  • for force applied at a right angle (in the magnet axis)
  • at temperature room level

Practical lifting capacity: influencing factors

Effective lifting capacity impacted by working environment parameters, including (from most important):
  • Space between surfaces – even a fraction of a millimeter of distance (caused e.g. by varnish or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – too thin steel causes magnetic saturation, causing part of the power to be lost into the air.
  • Plate material – low-carbon steel attracts best. Higher carbon content reduce magnetic permeability and lifting capacity.
  • Smoothness – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
  • Thermal conditions – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under attempts to slide the magnet the load capacity is reduced by as much as 75%. In addition, even a minimal clearance between the magnet and the plate reduces the load capacity.

Safety rules for work with neodymium magnets
Material brittleness

Despite the nickel coating, the material is brittle and not impact-resistant. Do not hit, as the magnet may crumble into hazardous fragments.

GPS Danger

A powerful magnetic field negatively affects the operation of compasses in smartphones and GPS navigation. Keep magnets close to a device to avoid breaking the sensors.

Dust explosion hazard

Dust produced during grinding of magnets is flammable. Avoid drilling into magnets unless you are an expert.

Threat to electronics

Powerful magnetic fields can erase data on credit cards, HDDs, and storage devices. Stay away of min. 10 cm.

Serious injuries

Risk of injury: The attraction force is so great that it can result in blood blisters, pinching, and broken bones. Protective gloves are recommended.

Nickel allergy

Medical facts indicate that nickel (the usual finish) is a common allergen. For allergy sufferers, avoid touching magnets with bare hands and select coated magnets.

Swallowing risk

Product intended for adults. Tiny parts pose a choking risk, leading to serious injuries. Keep away from children and animals.

Heat warning

Control the heat. Heating the magnet to high heat will ruin its magnetic structure and strength.

Do not underestimate power

Before starting, read the rules. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Life threat

Individuals with a ICD must maintain an large gap from magnets. The magnetism can stop the operation of the implant.

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