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neodymium magnets

We offer yellow color magnets Nd2Fe14B - our offer. All magnesy neodymowe on our website are available for immediate delivery (see the list). See the magnet price list for more details see the magnet price list

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UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180419

GTIN: 5906301813781

5

Diameter Ø [±0,1 mm]

60 mm

Height [±0,1 mm]

30 mm

Height [±0,1 mm]

15 mm

Weight

260 g

Load capacity

112 kg / 1098.34 N

102.96 with VAT / pcs + price for transport

83.71 ZŁ net + 23% VAT / pcs

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UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread
Specification/characteristics UMGW 60x30x15 [M10] GW / N38 - magnetic holder internal thread
properties
values
Cat. no.
180419
GTIN
5906301813781
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
60 mm [±0,1 mm]
Height
30 mm [±0,1 mm]
Height
15 mm [±0,1 mm]
Weight
260 g [±0,1 mm]
Load capacity ~ ?
112 kg / 1098.34 N
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N38

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

Shopping tips

The steel cup acts as an armature, concentrating the magnetic flux and increasing capacity even several times. Thanks to this, the holder is more durable, resistant, and safer to mount. The threaded hole allows creating a functional mounting point in seconds.
Too long a screw can pass through the bushing and push out or damage the magnet glued into the bottom of the cup. We recommend checking thread depth before assembly and shortening the screw if necessary. It is worth securing the thread with thread glue if the connection is to be durable and resistant to vibrations.
They are indispensable when building exhibition stands and shop displays (POS systems). They allow mounting without drilling in steel substrate, which is crucial in rented spaces. Ideal for fixing lighting on machine tools and welding tables.
The stated force is the maximum laboratory value obtained on a clean, smooth sheet. On a thin surface or painted cabinet, the magnet will hold much weaker (even by 50-70%). For side detachment (sliding), the force is only approx. 1/3 of nominal capacity.
Standard coating effectively protects against moisture in indoor conditions. For outdoor applications, we recommend additional protection with varnish or choosing a rubberized (hermetic) version. The whole is well protected for standard workshop and industrial applications.

Pros as well as cons of NdFeB magnets.

Besides their remarkable field intensity, neodymium magnets offer the following advantages:

  • They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (according to literature),
  • Magnets perfectly defend themselves against loss of magnetization caused by foreign field sources,
  • By using a smooth layer of gold, the element acquires an professional look,
  • Neodymium magnets deliver maximum magnetic induction on a small surface, which ensures high operational effectiveness,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can function (depending on the shape) even at a temperature of 230°C or more...
  • Considering the possibility of free molding and adaptation to custom projects, neodymium magnets can be produced in a broad palette of geometric configurations, which expands the range of possible applications,
  • Significant place in modern industrial fields – they are utilized in HDD drives, motor assemblies, medical equipment, and technologically advanced constructions.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages of NdFeB magnets:

  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution protects the magnet and simultaneously increases its durability.
  • When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as 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 recommend using cover - magnetic holder.
  • Potential hazard related to microscopic parts of magnets pose a threat, if swallowed, which becomes key in the context of child health protection. Furthermore, 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

Best holding force of the magnet in ideal parameterswhat it depends on?

The lifting capacity listed is a measurement result conducted under standard conditions:

  • using a base made of mild steel, functioning as a circuit closing element
  • with a thickness no less than 10 mm
  • with an ideally smooth contact surface
  • with zero gap (without coatings)
  • under vertical force vector (90-degree angle)
  • in neutral thermal conditions

Key elements affecting lifting force

In practice, the real power is determined by several key aspects, listed from crucial:

  • Space 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.
  • Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the capacity drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the lifting capacity (the magnet "punches through" it).
  • Chemical composition of the base – low-carbon steel gives the best results. Higher carbon content lower magnetic properties and lifting capacity.
  • Surface condition – smooth surfaces ensure maximum contact, which improves field saturation. Rough surfaces weaken the grip.
  • Thermal environment – temperature increase results in weakening of force. It is worth remembering the maximum operating temperature for a given model.

* Lifting capacity testing was performed on plates with a smooth surface of suitable thickness, under perpendicular forces, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Additionally, even a small distance {between} the magnet and the plate reduces the load capacity.

Safety rules for work with neodymium magnets

Safe distance

Device Safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, hearing aids, timepieces).

Life threat

People with a heart stimulator should maintain an large gap from magnets. The magnetic field can disrupt the operation of the life-saving device.

Magnet fragility

Despite the nickel coating, neodymium is brittle and not impact-resistant. Avoid impacts, as the magnet may crumble into hazardous fragments.

Crushing force

Protect your hands. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Be careful!

Combustion hazard

Machining of NdFeB material carries a risk of fire risk. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Do not underestimate power

Before starting, read the rules. Uncontrolled attraction can destroy the magnet or hurt your hand. Be predictive.

Adults only

Product intended for adults. Tiny parts pose a choking risk, causing serious injuries. Store away from children and animals.

Phone sensors

Navigation devices and smartphones are extremely susceptible to magnetism. Close proximity with a powerful NdFeB magnet can decalibrate the internal compass in your phone.

Nickel coating and allergies

Certain individuals have a contact allergy to Ni, which is the common plating for NdFeB magnets. Prolonged contact may cause skin redness. We recommend wear safety gloves.

Do not overheat magnets

Regular neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. This process is irreversible.

Important!

Looking for details? Check our post: Are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98