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neodymium magnets

We provide yellow color magnetic Nd2Fe14B - our store's offer. Practically all "neodymium magnets" on our website are in stock for immediate delivery (see the list). See the magnet pricing for more details see the magnet price list

Magnet for water searching F200 GOLD

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magnetic holders

Magnetic holders can be used to facilitate production processes, underwater exploration, or locating meteorites made of ore check...

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

magnetic holder internal thread

Catalog no 180419

GTIN: 5906301813781

5.00

Diameter Ø

60 mm [±1 mm]

Height

30 mm [±1 mm]

Height

15 mm [±1 mm]

Weight

260 g

Load capacity

112.00 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
properties values
Cat. no. 180419
GTIN 5906301813781
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 60 mm [±1 mm]
Height 30 mm [±1 mm]
Height 15 mm [±1 mm]
Weight 260 g
Load capacity ~ ? 112.00 kg / 1098.34 N
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

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

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
Szybki Konwerter Jednostek
Siła (Udźwig)

Pole Magnetyczne

Other products

A magnetic holder (magnet in a steel cup) is much stronger on one side than a bare magnet of the same dimensions. Moreover, the metal housing protects the brittle neodymium magnet from cracking upon impact. The bushing with internal thread allows easy screwing of any element (bolt, hook, handle).
Care must be taken not to screw the bolt too deep into the magnet bushing. Neodymium magnets are brittle, and direct pressure from a screw can cause them to crack or detach. You can use a spacer washer or lock nut to limit screwing depth.
They are indispensable when building exhibition stands and shop displays (POS systems). They serve as a base for hooks, cable holders, organizers, and lighting systems. In the workshop, they can serve as mounting points for tools or measuring instruments.
This value applies to perfect adherence with the entire magnet surface. Air gap (rust, paint, dirt) also drastically lowers holding power. We always recommend choosing a magnet with power reserve, especially if the surface is not ideal.
The housing has anti-corrosion protection in the form of galvanic zinc or nickel plating. In rain and frost, the coating may degrade over time if not protected. The neodymium magnet itself inside is also nickel-plated.

Pros as well as cons of neodymium magnets.

Besides their tremendous pulling force, neodymium magnets offer the following advantages:

  • They retain magnetic properties for nearly ten years – the loss is just ~1% (in theory),
  • They are resistant to demagnetization induced by external magnetic fields,
  • The use of an refined finish of noble metals (nickel, gold, silver) causes the element to look better,
  • Magnets exhibit exceptionally strong 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 exact forming as well as adapting to complex needs,
  • Key role in electronics industry – they find application in magnetic memories, brushless drives, advanced medical instruments, and technologically advanced constructions.
  • Thanks to efficiency per cm³, small magnets offer high operating force, with minimal size,

Disadvantages of neodymium magnets:

  • They are prone to damage upon too strong impacts. To avoid cracks, it is worth protecting magnets using a steel holder. Such protection not only shields the magnet but also increases its resistance to damage
  • Neodymium magnets lose their strength under the influence of heating. As soon as 80°C is exceeded, many of them start losing their power. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Due to limitations in producing nuts and complicated shapes in magnets, we recommend using cover - magnetic mechanism.
  • Potential hazard resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small elements of these magnets are able to disrupt the diagnostic process medical in case of swallowing.
  • Due to neodymium price, their price is relatively high,

Maximum holding power of the magnet – what it depends on?

The load parameter shown concerns the peak performance, obtained under optimal environment, namely:

  • with the use of a sheet made of special test steel, guaranteeing maximum field concentration
  • possessing a massiveness of at least 10 mm to avoid saturation
  • with an ideally smooth touching surface
  • with zero gap (without paint)
  • for force applied at a right angle (in the magnet axis)
  • at ambient temperature approx. 20 degrees Celsius

Practical lifting capacity: influencing factors

In real-world applications, the real power depends on several key aspects, listed from the most important:

  • Distance – the presence of any layer (rust, tape, gap) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
  • Load vector – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is usually several times lower (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux passes through the material instead of generating force.
  • Steel type – mild steel gives the best results. Alloy steels lower magnetic permeability and holding force.
  • Surface quality – the smoother and more polished the plate, the better the adhesion and higher the lifting capacity. Roughness creates an air distance.
  • Temperature – temperature increase causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

* Lifting capacity was measured with the use of a smooth steel plate of suitable thickness (min. 20 mm), under perpendicular detachment force, however under shearing force the load capacity is reduced by as much as 75%. Moreover, even a minimal clearance {between} the magnet and the plate reduces the load capacity.

Safe handling of NdFeB magnets

Medical implants

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Magnetic interference

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

Electronic hazard

Do not bring magnets close to a wallet, computer, or screen. The magnetic field can irreversibly ruin these devices and wipe information from cards.

Sensitization to coating

A percentage of the population experience a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Prolonged contact can result in dermatitis. We suggest wear safety gloves.

Flammability

Combustion risk: Neodymium dust is explosive. Avoid machining magnets without safety gear as this may cause fire.

Magnets are brittle

Neodymium magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets will cause them cracking into shards.

Heat warning

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

Bodily injuries

Watch your fingers. Two powerful magnets will join instantly with a force of several hundred kilograms, destroying everything in their path. Be careful!

Do not give to children

Strictly store magnets out of reach of children. Ingestion danger is high, and the effects of magnets connecting inside the body are life-threatening.

Handling guide

Handle magnets consciously. Their huge power can surprise even experienced users. Plan your moves and respect their power.

Warning!

More info about hazards in the article: Magnet Safety Guide.

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98