UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Product available Ships today (order by 14:00)

UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: 1-6500
Rating: 5

magnetic holder external thread

Catalog no 190417

GTIN: 5906301813880

5.00

Diameter Ø

75 mm [±1 mm]

Height

34 mm [±1 mm]

Height

18 mm [±1 mm]

Weight

475 g

Load capacity

162.00 kg / 1588.68 N

189.42 ZŁ with VAT / pcs + price for transport

154.00 ZŁ net + 23% VAT / pcs

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166.69 ZŁ

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Lifting power and shape of magnets can be reviewed with our magnetic mass calculator.

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UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Specification / characteristics UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

properties

properties	values
Cat. no.	190417
GTIN	5906301813880
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	75 mm [±1 mm]
Height	34 mm [±1 mm]
Height	18 mm [±1 mm]
Weight	475 g
Load capacity ~ ?	162.00 kg / 1588.68 N
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

properties	values	units
remenance Br [Min. - Max.] ?	12.2-12.6	kGs
remenance Br [Min. - Max.] ?	1220-1260	T
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

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 106	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10-6	°C^-1
Young's modulus	1.7 x 104	kg/mm²

Magnet Unit Converter

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Force in lbs

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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. We recommend using spring washers to avoid the need for forceful tightening. The magnet itself is protected by a steel cup and is very resistant to impact.

Above this temperature, the magnet may irreversibly lose some of its power. For furnaces, dryers, and powder coating shops, we recommend other types of magnets. Remember that even momentary overheating can weaken the holder.

We use standardized threads that fit typical nuts available in every store. Exact screw dimensions can be found in the product technical table. The thread is made of galvanized steel, ensuring corrosion resistance.

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 rare earth magnets.

Benefits

In addition to their magnetic efficiency, neodymium magnets provide the following advantages:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (in laboratory conditions),
They maintain their magnetic properties even under strong external field,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
They are known for high magnetic induction at the operating surface, which affects their effectiveness,
Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and are able to act (depending on the form) even at a temperature of 230°C or more...
Due to the potential of free forming and adaptation to specialized solutions, magnetic components can be manufactured in a wide range of shapes and sizes, which increases their versatility,
Fundamental importance in high-tech industry – they are commonly used in data components, drive modules, precision medical tools, and complex engineering applications.
Relatively small size with high pulling force – neodymium magnets offer impressive pulling force in tiny dimensions, which enables their usage in compact constructions

Disadvantages

What to avoid - cons of neodymium magnets and proposals for their use:

At very strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we advise using water-impermeable magnets made of rubber, plastic or other material resistant to moisture
We recommend cover - magnetic holder, due to difficulties in creating nuts inside the magnet and complex forms.
Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Additionally, small components of these products are able to disrupt the diagnostic process medical when they are in the body.
High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which increases costs of application in large quantities

Holding force characteristics

Highest magnetic holding force – what contributes to it?

The specified lifting capacity refers to the maximum value, recorded under ideal test conditions, namely:

using a sheet made of high-permeability steel, functioning as a ideal flux conductor
with a cross-section no less than 10 mm
with a surface perfectly flat
under conditions of ideal adhesion (surface-to-surface)
during pulling in a direction perpendicular to the plane
at ambient temperature approx. 20 degrees Celsius

Lifting capacity in real conditions – factors

Bear in mind that the application force may be lower depending on the following factors, in order of importance:

Distance – existence of foreign body (rust, tape, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet exhibits much less (often approx. 20-30% of nominal force).
Metal thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
Material type – the best choice is pure iron steel. Hardened steels may attract less.
Smoothness – full contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Temperature – temperature increase causes a temporary drop of force. Check the thermal limit for a given model.

Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 75%. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.

Warnings

Skin irritation risks

Allergy Notice: The nickel-copper-nickel coating consists of nickel. If redness appears, immediately stop handling magnets and wear gloves.

GPS and phone interference

An intense magnetic field negatively affects the operation of compasses in smartphones and navigation systems. Keep magnets close to a device to avoid breaking the sensors.

Heat warning

Control the heat. Heating the magnet to high heat will permanently weaken its properties and strength.

Swallowing risk

Strictly store magnets out of reach of children. Ingestion danger is high, and the consequences of magnets clamping inside the body are very dangerous.

Handling rules

Before use, check safety instructions. Uncontrolled attraction can destroy the magnet or hurt your hand. Think ahead.

Electronic hazard

Avoid bringing magnets close to a wallet, laptop, or TV. The magnetism can permanently damage these devices and erase data from cards.

Combustion hazard

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

Fragile material

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

Finger safety

Large magnets can break fingers in a fraction of a second. Never place your hand betwixt two attracting surfaces.

Pacemakers

Individuals with a pacemaker should keep an absolute distance from magnets. The magnetism can stop the functioning of the life-saving device.

Safety First! Looking for details? Read our article: Why are neodymium magnets dangerous?

UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Looking for a better price?

UMGZ 75x34x18 [M10] GZ / N38 - magnetic holder external thread

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Magnet Pull Force

Field Strength

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Pros and cons of rare earth magnets.

Benefits

Disadvantages

Holding force characteristics

Highest magnetic holding force – what contributes to it?

Lifting capacity in real conditions – factors

Skin irritation risks

GPS and phone interference

Heat warning

Swallowing risk

Handling rules

Electronic hazard

Combustion hazard

Fragile material

Finger safety

Pacemakers

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C