UMP 75x24 [M8+M10] GW F 200 kg - search holder
search holder
Catalog no 210336
GTIN: 5906301813958
Diameter Ø
75 mm [±1 mm]
Height
24 mm [±1 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:
Need more?Not sure about your choice?
Give us a call
+48 888 99 98 98
if you prefer let us know through
request form
the contact page.
Force and form of magnets can be checked with our
magnetic calculator.
Orders submitted before 14:00 will be dispatched today!
Magnetic properties of material
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Pros as well as cons of NdFeB magnets.
Apart from their strong magnetic energy, neodymium magnets have these key benefits:
- They retain full power for around 10 years – the drop is just ~1% (based on simulations),
- They have excellent resistance to weakening of magnetic properties due to external fields,
- A magnet with a shiny silver surface looks better,
- They are known for high magnetic induction at the operating surface, making them more effective,
- Due to their durability and thermal resistance, neodymium magnets can operate (depending on the form) even at high temperatures reaching 230°C or more...
- Thanks to flexibility in forming and the ability to adapt to unusual requirements,
- Significant place in future technologies – they are commonly used in magnetic memories, motor assemblies, medical equipment, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which allows their use in miniature devices
Disadvantages of NdFeB magnets:
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a special holder, which not only protects them against impacts but also increases their durability
- Neodymium magnets lose their power under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
- Magnets exposed to a humid environment can rust. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in producing threads and complex shapes in magnets, we propose using casing - magnetic mount.
- Possible danger resulting from small fragments of magnets pose a threat, when accidentally swallowed, which becomes key in the context of child health protection. Additionally, tiny parts of these devices can disrupt the diagnostic process medical after entering the body.
- With mass production the cost of neodymium magnets can be a barrier,
Maximum holding power of the magnet – what affects it?
The specified lifting capacity concerns the maximum value, measured under optimal environment, meaning:
- using a base made of low-carbon steel, serving as a circuit closing element
- with a cross-section no less than 10 mm
- characterized by lack of roughness
- with total lack of distance (no coatings)
- under perpendicular application of breakaway force (90-degree angle)
- in temp. approx. 20°C
Lifting capacity in real conditions – factors
Effective lifting capacity is influenced by specific conditions, such as (from priority):
- Air gap (between the magnet and the metal), because even a very small distance (e.g. 0.5 mm) results in a drastic drop in lifting capacity by up to 50% (this also applies to paint, corrosion or dirt).
- Direction of force – highest force is available only during pulling at a 90° angle. The force required to slide of the magnet along the plate is typically several times lower (approx. 1/5 of the lifting capacity).
- Element thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
- Material type – the best choice is pure iron steel. Hardened steels may attract less.
- Smoothness – ideal contact is possible only on polished steel. Any scratches and bumps create air cushions, reducing force.
- Temperature influence – hot environment weakens pulling force. Too high temperature can permanently demagnetize the magnet.
* Lifting capacity was assessed by applying a smooth steel plate of optimal thickness (min. 20 mm), under vertically applied force, however under parallel forces the holding force is lower. Additionally, even a slight gap {between} the magnet’s surface and the plate lowers the holding force.
H&S for magnets
Crushing force
Pinching hazard: The pulling power is so immense that it can cause blood blisters, pinching, and even bone fractures. Protective gloves are recommended.
Pacemakers
For implant holders: Powerful magnets affect electronics. Keep minimum 30 cm distance or request help to handle the magnets.
Mechanical processing
Drilling and cutting of NdFeB material poses a fire risk. Neodymium dust oxidizes rapidly with oxygen and is difficult to extinguish.
Phone sensors
A strong magnetic field interferes with the operation of magnetometers in phones and GPS navigation. Maintain magnets close to a smartphone to avoid damaging the sensors.
Safe distance
Equipment safety: Strong magnets can damage data carriers and delicate electronics (heart implants, hearing aids, mechanical watches).
Powerful field
Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Be predictive.
Demagnetization risk
Watch the temperature. Heating the magnet above 80 degrees Celsius will destroy its properties and pulling force.
Metal Allergy
It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, prevent direct skin contact or choose coated magnets.
Adults only
Strictly store magnets away from children. Ingestion danger is significant, and the consequences of magnets connecting inside the body are life-threatening.
Magnet fragility
Neodymium magnets are sintered ceramics, meaning they are fragile like glass. Impact of two magnets leads to them cracking into shards.
Warning!
Learn more about hazards in the article: Magnet Safety Guide.
