RM R7 SUPER - 13000 Gs / N52 - magnetic distributor

Strengths and weaknesses of neodymium magnets.

Apart from their superior magnetic energy, neodymium magnets have these key benefits:

• They retain full power for around ten years – the drop is just ~1% (based on simulations),
• They do not lose their magnetic properties even under close interference source,
• In other words, due to the smooth finish of nickel, the element gains a professional look,
• They feature high magnetic induction at the operating surface, which affects their effectiveness,
• 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...
• Considering the option of accurate shaping and adaptation to custom solutions, neodymium magnets can be produced in a variety of forms and dimensions, which makes them more universal,
• Versatile presence in modern technologies – they are commonly used in magnetic memories, motor assemblies, medical equipment, and complex engineering applications.
• Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Disadvantages of neodymium magnets:

• At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
• Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent weakening of strength (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
• They oxidize in a humid environment. For use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
• Due to limitations in producing threads and complicated shapes in magnets, we propose using a housing - magnetic mechanism.
• Possible danger related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which gains importance in the aspect of protecting the youngest. It is also worth noting that tiny parts of these products are able to complicate diagnosis medical after entering the body.
• Due to complex production process, their price is higher than average,

Maximum holding power of the magnet – what contributes to it?

The declared magnet strength concerns the peak performance, measured under laboratory conditions, namely:

• using a plate made of high-permeability steel, acting as a magnetic yoke
• possessing a massiveness of at least 10 mm to avoid saturation
• with an ideally smooth touching surface
• under conditions of gap-free contact (metal-to-metal)
• for force applied at a right angle (in the magnet axis)
• in temp. approx. 20°C

What influences lifting capacity in practice

It is worth knowing that the application force may be lower influenced by elements below, starting with the most relevant:

• Air gap (between the magnet and the metal), as even a very small distance (e.g. 0.5 mm) leads to a reduction in lifting capacity by up to 50% (this also applies to varnish, corrosion or debris).
• Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the holding force drops significantly, often to levels of 20-30% of the nominal value.
• Element thickness – to utilize 100% power, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
• Steel type – mild steel attracts best. Alloy admixtures decrease magnetic permeability and lifting capacity.
• Surface condition – ground elements guarantee perfect abutment, which improves field saturation. Uneven metal weaken the grip.
• Thermal environment – temperature increase results in weakening of force. Check the maximum operating temperature for a given model.

* Lifting capacity was measured with the use of a steel plate with a smooth surface of optimal thickness (min. 20 mm), under perpendicular pulling force, whereas under shearing force the load capacity is reduced by as much as 75%. Moreover, even a slight gap {between} the magnet and the plate lowers the load capacity.