Product on order Ships in 3-5 days

UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread

magnetic holder external thread

Catalog no 190415

GTIN/EAN: 5906301813866

5.00

Diameter Ø

48 mm [±1 mm]

Height

24 mm [±1 mm]

Height

11.5 mm [±1 mm]

Weight

140 g

Load capacity

80.00 kg / 784.53 N

Coating

[NiCuNi] Nickel

product details »

59.90 ZŁ with VAT / pcs + price for transport

48.70 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?
price from 1 pcs
48.70 ZŁ
59.90 ZŁ
price from 10 pcs
45.78 ZŁ
56.31 ZŁ
price from 20 pcs
42.86 ZŁ
52.71 ZŁ
Carbon Footprint – environmental impact GPSR Regulation – product safety
Can't decide what to choose?

Give us a call +48 22 499 98 98 otherwise let us know through inquiry form our website.
Parameters and form of magnetic components can be tested on our modular calculator.

Same-day shipping for orders placed before 14:00.

Detailed specification - UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread

Specification / characteristics - UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread

properties
properties values
Cat. no. 190415
GTIN/EAN 5906301813866
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 48 mm [±1 mm]
Height 24 mm [±1 mm]
Height 11.5 mm [±1 mm]
Weight 140 g
Load capacity ~ ? 80.00 kg / 784.53 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGZ 48x24x11.5 [M8] GZ / N38 - magnetic holder external thread
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
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%
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: 190415-2026
Magnet Unit Converter
Magnet pull force
Magnetic Induction
Input your value in a single field to see the conversion in the other fields at once.

Other products

UMS 75x19x10.5x18 / N38 - conical magnetic holder
Product on order Ships in 3-5 days

UMS 75x19x10.5x18 / N38 - conical magnetic holder

125.56 ZŁ brutto / pcs
UMGZ 25x17x8 [M5] GZ / N38 - magnetic holder external thread
Product on order Ships in 3-5 days

UMGZ 25x17x8 [M5] GZ / N38 - magnetic holder external thread

12.23 ZŁ brutto / pcs
SMZR 25x150 / N52 - magnetic separator with handle
Product on order Ships in 3-5 days

SMZR 25x150 / N52 - magnetic separator with handle

430.50 ZŁ brutto / pcs
MP 62x42x25 / N38 - ring magnet
Product on order Ships in 3-5 days

MP 62x42x25 / N38 - ring magnet

165.00 ZŁ brutto / pcs
It is a ready-made mounting element that allows quick creation of a magnetic point. Just pass the thread through the hole in the element and tighten the nut on the other side. Used for mounting sensors, panels, plates, and exhibition elements.
The threaded stud is an integral part of the steel housing, but avoid overtightening the thread. Do not use the magnet as a structural bolt transferring huge mechanical loads in shear. The construction is durable and adapted to industrial conditions.
Above this temperature, the magnet may irreversibly lose some of its power. We also offer holders made of ferrite magnets (resistant up to 200°C) or special high-temperature versions. Avoid mounting directly on hot engine or machine components.
We use standardized threads that fit typical nuts available in every store. Stud length varies depending on the model (usually from 8 to 15 mm). It is a solid threaded connection, ready for use.
Yes, the steel housing (cup) focuses the magnetic field, significantly increasing attraction force on the active side. This force drops very quickly with increasing distance (air gap).

Pros and cons of neodymium magnets.

Advantages

In addition to their pulling strength, neodymium magnets provide the following advantages:
  • They virtually do not lose strength, because even after ten years the decline in efficiency is only ~1% (according to literature),
  • Magnets very well defend themselves against demagnetization caused by external fields,
  • A magnet with a shiny silver surface has better aesthetics,
  • Neodymium magnets achieve maximum magnetic induction on a their surface, which ensures high operational effectiveness,
  • Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
  • Possibility of detailed modeling and optimizing to defined requirements,
  • Universal use in modern technologies – they are utilized in data components, motor assemblies, advanced medical instruments, as well as multitasking production systems.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Cons

Problematic aspects of neodymium magnets: application proposals
  • They are fragile upon heavy impacts. To avoid cracks, it is worth protecting magnets in special housings. Such protection not only shields the magnet but also improves its resistance to damage
  • When exposed to high temperature, neodymium magnets experience a drop in force. 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
  • Magnets exposed to a humid environment can rust. Therefore while using outdoors, we advise using waterproof magnets made of rubber, plastic or other material protecting against moisture
  • Limited possibility of making nuts in the magnet and complicated forms - recommended is a housing - mounting mechanism.
  • Health risk related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical in case of swallowing.
  • Due to neodymium price, their price is higher than average,

Pull force analysis

Maximum magnetic pulling force – what affects it?

The specified lifting capacity refers to the limit force, obtained under laboratory conditions, meaning:
  • using a base made of mild steel, functioning as a circuit closing element
  • possessing a massiveness of minimum 10 mm to ensure full flux closure
  • characterized by even structure
  • without the slightest clearance between the magnet and steel
  • for force acting at a right angle (in the magnet axis)
  • at standard ambient temperature

Magnet lifting force in use – key factors

Effective lifting capacity impacted by specific conditions, such as (from priority):
  • Gap (between the magnet and the metal), since even a microscopic clearance (e.g. 0.5 mm) can cause a drastic drop in force by up to 50% (this also applies to varnish, corrosion or debris).
  • Pull-off angle – remember that the magnet holds strongest perpendicularly. Under shear forces, the capacity drops significantly, often to levels of 20-30% of the nominal value.
  • Steel thickness – insufficiently thick plate does not close the flux, causing part of the flux to be escaped into the air.
  • Steel type – low-carbon steel attracts best. Alloy admixtures lower magnetic permeability and holding force.
  • Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Uneven metal reduce efficiency.
  • Heat – NdFeB sinters have a negative temperature coefficient. At higher temperatures they are weaker, and in frost gain strength (up to a certain limit).

Lifting capacity was assessed with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, whereas under parallel forces the lifting capacity is smaller. Moreover, even a minimal clearance between the magnet and the plate reduces the lifting capacity.

Safety rules for work with NdFeB magnets
Choking Hazard

Always keep magnets away from children. Ingestion danger is high, and the effects of magnets clamping inside the body are very dangerous.

Conscious usage

Handle magnets consciously. Their immense force can surprise even experienced users. Stay alert and respect their force.

Mechanical processing

Fire warning: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.

Medical implants

Life threat: Strong magnets can turn off pacemakers and defibrillators. Do not approach if you have electronic implants.

Metal Allergy

Studies show that the nickel plating (standard magnet coating) is a potent allergen. For allergy sufferers, refrain from touching magnets with bare hands and choose coated magnets.

Magnetic interference

A strong magnetic field disrupts the functioning of compasses in smartphones and navigation systems. Do not bring magnets near a device to prevent damaging the sensors.

Electronic hazard

Equipment safety: Neodymium magnets can damage payment cards and sensitive devices (pacemakers, hearing aids, mechanical watches).

Demagnetization risk

Avoid heat. NdFeB magnets are susceptible to temperature. If you require operation above 80°C, inquire about special high-temperature series (H, SH, UH).

Hand protection

Mind your fingers. Two large magnets will join instantly with a force of massive weight, destroying anything in their path. Exercise extreme caution!

Magnets are brittle

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets will cause them shattering into shards.

Safety First! Want to know more? Check our post: Why are neodymium magnets dangerous?