UMP 75x24 [M8+M10] GW F 200 kg - search holder
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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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Parameters as well as shape of a neodymium magnet can be calculated using our
magnetic mass 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
Advantages as well as disadvantages of NdFeB magnets.
Apart from their notable magnetism, neodymium magnets have these key benefits:
- Their strength remains stable, and after around 10 years it decreases only by ~1% (according to research),
- They show high resistance to demagnetization induced by external field influence,
- Thanks to the shiny finish, the layer of nickel, gold-plated, or silver gives an modern appearance,
- The surface of neodymium magnets generates a intense magnetic field – this is a distinguishing feature,
- Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling action at temperatures approaching 230°C and above...
- Thanks to freedom in constructing and the capacity to adapt to unusual requirements,
- Versatile presence in innovative solutions – they are commonly used in HDD drives, motor assemblies, diagnostic systems, and industrial machines.
- Compactness – despite small sizes they generate large force, making them ideal for precision applications
Disadvantages of NdFeB magnets:
- Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
- Neodymium magnets decrease 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
- Magnets exposed to a humid environment can corrode. Therefore while using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
- We recommend casing - magnetic mechanism, due to difficulties in creating nuts inside the magnet and complex shapes.
- Potential hazard resulting from small fragments of magnets are risky, in case of ingestion, which gains importance in the aspect of protecting the youngest. Furthermore, small elements of these magnets can disrupt the diagnostic process medical after entering the body.
- High unit price – neodymium magnets cost more than other types of magnets (e.g. ferrite), which can limit application in large quantities
Maximum lifting force for a neodymium magnet – what contributes to it?
Magnet power is the result of a measurement for ideal contact conditions, including:
- on a block made of mild steel, perfectly concentrating the magnetic flux
- whose transverse dimension is min. 10 mm
- with a plane cleaned and smooth
- with direct contact (no paint)
- under perpendicular force vector (90-degree angle)
- in temp. approx. 20°C
Lifting capacity in practice – influencing factors
Real force impacted by working environment parameters, including (from most important):
- Air gap (between the magnet and the metal), because even a very small clearance (e.g. 0.5 mm) can cause a drastic drop in lifting capacity by up to 50% (this also applies to varnish, rust or dirt).
- Loading method – catalog parameter refers to pulling vertically. When applying parallel force, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Wall thickness – thin material does not allow full use of the magnet. Part of the magnetic field passes through the material instead of generating force.
- Plate material – mild steel gives the best results. Alloy steels decrease magnetic permeability and lifting capacity.
- Surface condition – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces reduce efficiency.
- Temperature – heating the magnet results in weakening of force. It is worth remembering the maximum operating temperature for a given model.
* Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under perpendicular forces, however under shearing force the holding force is lower. In addition, even a small distance {between} the magnet and the plate lowers the holding force.
H&S for magnets
Adults only
Strictly store magnets away from children. Risk of swallowing is high, and the effects of magnets clamping inside the body are tragic.
Caution required
Before starting, read the rules. Sudden snapping can break the magnet or hurt your hand. Be predictive.
Combustion hazard
Drilling and cutting of NdFeB material carries a risk of fire risk. Neodymium dust reacts violently with oxygen and is hard to extinguish.
Health Danger
Life threat: Neodymium magnets can deactivate heart devices and defibrillators. Do not approach if you have electronic implants.
Do not overheat magnets
Control the heat. Heating the magnet to high heat will permanently weaken its magnetic structure and pulling force.
Allergy Warning
It is widely known that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, prevent direct skin contact or opt for versions in plastic housing.
Risk of cracking
NdFeB magnets are ceramic materials, which means they are very brittle. Impact of two magnets leads to them breaking into shards.
Physical harm
Pinching hazard: The pulling power is so great that it can cause hematomas, pinching, and even bone fractures. Protective gloves are recommended.
GPS and phone interference
A strong magnetic field disrupts the functioning of magnetometers in phones and navigation systems. Do not bring magnets close to a smartphone to avoid damaging the sensors.
Threat to electronics
Intense magnetic fields can erase data on payment cards, hard drives, and other magnetic media. Keep a distance of min. 10 cm.
Caution!
Details about risks in the article: Magnet Safety Guide.
