UMP 75x24 [M8+M10] GW F 200 kg - search holder
search holder
Catalog no 210336
GTIN: 5906301813958
Diameter Ø [±0,1 mm]
75 mm
Height [±0,1 mm]
24 mm
Weight
900 g
Load capacity
280 kg / 2745.86 N
Coating
[NiCuNi] nickel
200.00 ZŁ with VAT / pcs + price for transport
162.60 ZŁ net + 23% VAT / pcs
bulk discounts:
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Weight along with shape of a neodymium magnet can be tested using our
force calculator.
Orders placed before 14:00 will be shipped the same business day.
Magnetic properties of material
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Pros as well as cons of NdFeB magnets.
Besides their exceptional pulling force, neodymium magnets offer the following advantages:
- They do not lose power, even after nearly 10 years – the drop in power is only ~1% (theoretically),
- They are extremely resistant to demagnetization induced by external magnetic fields,
- By using a decorative layer of nickel, the element gains an professional look,
- Neodymium magnets achieve maximum magnetic induction on a small surface, which ensures high operational effectiveness,
- Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
- Thanks to modularity in shaping and the ability to customize to complex applications,
- Wide application in modern industrial fields – they are used in HDD drives, electric motors, diagnostic systems, also other advanced devices.
- Thanks to their power density, small magnets offer high operating force, in miniature format,
Characteristics of disadvantages of neodymium magnets and ways of using them
- To avoid cracks upon strong impacts, we suggest using special steel housings. Such a solution protects the magnet and simultaneously improves its durability.
- When exposed to high temperature, neodymium magnets suffer a drop in strength. 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
- When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
- We recommend cover - magnetic mount, due to difficulties in realizing threads inside the magnet and complex shapes.
- Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which becomes key in the aspect of protecting the youngest. Furthermore, tiny parts of these devices can be problematic in diagnostics medical when they are in the body.
- Higher cost of purchase is one of the disadvantages compared to ceramic magnets, especially in budget applications
Maximum holding power of the magnet – what affects it?
Magnet power was defined for optimal configuration, including:
- using a base made of low-carbon steel, serving as a ideal flux conductor
- with a thickness minimum 10 mm
- with an ideally smooth touching surface
- under conditions of ideal adhesion (surface-to-surface)
- under vertical force vector (90-degree angle)
- at temperature room level
Impact of factors on magnetic holding capacity in practice
Holding efficiency impacted by working environment parameters, mainly (from most important):
- Air gap (between the magnet and the plate), as even a tiny distance (e.g. 0.5 mm) results in a reduction in force by up to 50% (this also applies to varnish, rust or dirt).
- Force direction – declared lifting capacity refers to pulling vertically. When applying parallel force, the magnet holds much less (often approx. 20-30% of nominal force).
- Wall thickness – the thinner the sheet, the weaker the hold. Magnetic flux passes through the material instead of generating force.
- Material composition – not every steel attracts identically. High carbon content weaken the interaction with the magnet.
- Smoothness – ideal contact is possible only on smooth steel. Rough texture create air cushions, reducing force.
- Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently demagnetize the magnet.
* Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a slight gap {between} the magnet’s surface and the plate lowers the holding force.
Safety rules for work with neodymium magnets
Magnetic interference
Remember: neodymium magnets produce a field that interferes with sensitive sensors. Keep a separation from your mobile, tablet, and GPS.
Beware of splinters
Watch out for shards. Magnets can explode upon violent connection, launching sharp fragments into the air. We recommend safety glasses.
Fire warning
Machining of neodymium magnets poses a fire risk. Magnetic powder reacts violently with oxygen and is hard to extinguish.
Finger safety
Risk of injury: The attraction force is so immense that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.
Handling guide
Exercise caution. Neodymium magnets act from a distance and snap with massive power, often quicker than you can react.
This is not a toy
These products are not toys. Eating several magnets can lead to them attracting across intestines, which poses a critical condition and necessitates urgent medical intervention.
Magnetic media
Do not bring magnets close to a purse, laptop, or TV. The magnetic field can irreversibly ruin these devices and wipe information from cards.
Nickel allergy
Certain individuals suffer from a hypersensitivity to nickel, which is the standard coating for NdFeB magnets. Extended handling can result in an allergic reaction. We strongly advise use protective gloves.
Permanent damage
Regular neodymium magnets (N-type) undergo demagnetization when the temperature exceeds 80°C. This process is irreversible.
ICD Warning
Health Alert: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.
Important!
Looking for details? Read our article: Are neodymium magnets dangerous?
