RM R7 SUPER - 13000 Gs / N52 - magnetic distributor

Pros and cons of neodymium magnets.

Besides their immense strength, neodymium magnets offer the following advantages:

• Their strength is durable, and after approximately ten years it drops only by ~1% (theoretically),
• They are noted for resistance to demagnetization induced by presence of other magnetic fields,
• A magnet with a shiny silver surface looks better,
• Magnets have maximum magnetic induction on the working surface,
• Due to their enhanced temperature resistance, they can operate (depending on the shape) even at temperatures up to 230°C or more,
• Possibility of detailed shaping and modifying to concrete applications,
• Universal use in modern technologies – they find application in computer drives, electromotive mechanisms, medical devices, as well as other advanced devices.
• Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Drawbacks and weaknesses of neodymium magnets: tips and applications.

• At strong impacts they can break, therefore we recommend placing them in strong housings. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
• We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
• Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we recommend using water-impermeable magnets made of rubber, plastic or other material protecting against moisture
• Due to limitations in producing nuts and complex shapes in magnets, we recommend using a housing - magnetic mount.
• Health risk to health – tiny shards of magnets are risky, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Furthermore, small elements of these products are able to disrupt the diagnostic process medical when they are in the body.
• With mass production the cost of neodymium magnets is economically unviable,

Highest magnetic holding force – what affects it?

The load parameter shown concerns the limit force, recorded under optimal environment, meaning:

• on a plate made of structural steel, optimally conducting the magnetic field
• with a thickness of at least 10 mm
• characterized by smoothness
• without the slightest insulating layer between the magnet and steel
• during detachment in a direction vertical to the plane
• in temp. approx. 20°C

Key elements affecting lifting force

Effective lifting capacity is influenced by specific conditions, including (from priority):

• Distance – the presence of foreign body (rust, dirt, air) interrupts the magnetic circuit, which reduces power steeply (even by 50% at 0.5 mm).
• Force direction – catalog parameter refers to pulling vertically. When attempting to slide, the magnet exhibits much less (often approx. 20-30% of nominal force).
• Wall thickness – the thinner the sheet, the weaker the hold. Part of the magnetic field penetrates through instead of converting into lifting capacity.
• Metal type – not every steel attracts identically. Alloy additives weaken the attraction effect.
• Plate texture – smooth surfaces guarantee perfect abutment, which improves force. Rough surfaces weaken the grip.
• Thermal environment – heating the magnet results in weakening of force. It is worth remembering the thermal limit for a given model.

* Holding force was measured on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under parallel forces the holding force is lower. Additionally, even a slight gap {between} the magnet’s surface and the plate reduces the load capacity.