tel: +48 22 499 98 98

neodymium magnets

We offer red color magnets Nd2Fe14B - our proposal. All "neodymium magnets" in our store are in stock for immediate delivery (see the list). See the magnet pricing for more details see the magnet price list

Magnets for water searching F200 GOLD

Where to buy strong magnet? Holders with magnets in airtight and durable steel enclosure are perfect for use in variable and difficult weather conditions, including in the rain and snow more

magnets with holders

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

We promise to ship ordered magnets if the order is placed before 2:00 PM on working days.

Dhit sp. z o.o.
Product on order Ships in 3-5 days

UMGB 75x28 [M10x3] GW F200 PLATINIUM + Lina GOBLIN / N52 - goblin magnetic holder

goblin magnetic holder

Catalog no 350441

GTIN: 5906301814832

5

Diameter Ø [±0,1 mm]

75 mm

Height [±0,1 mm]

28 mm

Weight

900 g

Magnetization Direction

↑ axial

Load capacity

365 kg / 3579.43 N

Coating

[NiCuNi] nickel

280.00 with VAT / pcs + price for transport

227.64 ZŁ net + 23% VAT / pcs

bulk discounts:

Need more?

price from 1 pcs
227.64 ZŁ
280.00 ZŁ
price from 5 pcs
213.98 ZŁ
263.20 ZŁ
price from 80 pcs
200.32 ZŁ
246.40 ZŁ

Need help making a decision?

Pick up the phone and ask +48 22 499 98 98 alternatively contact us by means of request form the contact page.
Weight along with structure of neodymium magnets can be tested with our magnetic calculator.

Order by 14:00 and we’ll ship today!

UMGB 75x28 [M10x3] GW F200 PLATINIUM + Lina GOBLIN / N52 - goblin magnetic holder
Specification/characteristics UMGB 75x28 [M10x3] GW F200 PLATINIUM + Lina GOBLIN / N52 - goblin magnetic holder
properties
values
Cat. no.
350441
GTIN
5906301814832
Production/Distribution
Dhit sp. z o.o.
Country of origin
Poland / China / Germany
Customs code
85059029
Diameter Ø
75 mm [±0,1 mm]
Height
28 mm [±0,1 mm]
Weight
900 g [±0,1 mm]
Magnetization Direction
↑ axial
Load capacity ~ ?
365 kg / 3579.43 N
Coating
[NiCuNi] nickel
Manufacturing Tolerance
± 0.1 mm

Magnetic properties of material N52

properties
values
units
remenance Br [Min. - Max.] ?
14.2-14.7
kGs
remenance Br [Min. - Max.] ?
1420-1470
T
coercivity bHc ?
10.8-12.5
kOe
coercivity bHc ?
860-995
kA/m
actual internal force iHc
≥ 12
kOe
actual internal force iHc
≥ 955
kA/m
energy density [Min. - Max.] ?
48-53
BH max MGOe
energy density [Min. - Max.] ?
380-422
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

Pros and cons of NdFeB magnets.

Apart from their consistent holding force, neodymium magnets have these key benefits:

  • They have stable power, and over nearly 10 years their performance decreases symbolically – ~1% (in testing),
  • They feature excellent resistance to magnetism drop when exposed to external magnetic sources,
  • A magnet with a smooth gold surface looks better,
  • Magnetic induction on the working part of the magnet is strong,
  • Neodymium magnets are characterized by extremely high magnetic induction on the magnet surface and can work (depending on the form) even at a temperature of 230°C or more...
  • Possibility of individual creating as well as modifying to complex conditions,
  • Wide application in modern industrial fields – they serve a role in computer drives, electric motors, advanced medical instruments, also complex engineering applications.
  • Compactness – despite small sizes they offer powerful magnetic field, making them ideal for precision applications

Disadvantages of neodymium magnets:

  • At very strong impacts they can break, therefore we recommend placing them in steel cases. 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 force. 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
  • Due to the susceptibility of magnets to corrosion in a humid environment, we suggest using waterproof magnets made of rubber, plastic or other material stable to moisture, in case of application outdoors
  • Limited possibility of producing threads in the magnet and complicated shapes - preferred is cover - magnet mounting.
  • Health risk to health – tiny shards of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Additionally, small elements of these devices are able to complicate diagnosis medical in case of swallowing.
  • Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications

Maximum lifting force for a neodymium magnet – what affects it?

The specified lifting capacity represents the limit force, obtained under optimal environment, meaning:

  • on a plate made of mild steel, perfectly concentrating the magnetic flux
  • whose thickness equals approx. 10 mm
  • with an ground touching surface
  • with total lack of distance (no impurities)
  • under perpendicular application of breakaway force (90-degree angle)
  • at room temperature

Lifting capacity in real conditions – factors

Real force impacted by specific conditions, such as (from priority):

  • Clearance – the presence of any layer (paint, tape, air) acts as an insulator, which reduces power rapidly (even by 50% at 0.5 mm).
  • Force direction – declared lifting capacity refers to pulling vertically. When attempting to slide, the magnet holds 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 converting into lifting capacity.
  • Material type – ideal substrate is high-permeability steel. Stainless steels may have worse magnetic properties.
  • Surface condition – smooth surfaces guarantee perfect abutment, which increases field saturation. Uneven metal weaken the grip.
  • Temperature – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

* Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, whereas under parallel forces the holding force is lower. Additionally, even a small distance {between} the magnet and the plate reduces the load capacity.

Safety rules for work with NdFeB magnets

Keep away from children

Adult use only. Small elements can be swallowed, causing severe trauma. Store away from kids and pets.

Fire risk

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

Allergic reactions

Some people experience a contact allergy to Ni, which is the standard coating for neodymium magnets. Frequent touching might lead to skin redness. We suggest wear protective gloves.

Magnet fragility

Despite the nickel coating, neodymium is delicate and not impact-resistant. Avoid impacts, as the magnet may crumble into sharp, dangerous pieces.

Serious injuries

Big blocks can break fingers in a fraction of a second. Do not put your hand between two strong magnets.

Handling rules

Handle magnets consciously. Their powerful strength can surprise even experienced users. Stay alert and do not underestimate their power.

Power loss in heat

Standard neodymium magnets (N-type) lose magnetization when the temperature exceeds 80°C. Damage is permanent.

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.

Life threat

Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or ask another person to handle the magnets.

Threat to electronics

Very strong magnetic fields can destroy records on payment cards, hard drives, and other magnetic media. Maintain a gap of at least 10 cm.

Safety First!

Need more info? Read our article: Why are neodymium magnets dangerous?

Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98