XT-4 magnetyzery CO i WODY użytkowej - XT-4 magnetizer
XT-4 magnetizer
Catalog no 050245
GTIN: 5906301812395
Weight
228 g
98.99 ZŁ with VAT / pcs + price for transport
80.48 ZŁ net + 23% VAT / pcs
bulk discounts:
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Magnetic properties of material
Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
Shopping tips
Advantages and disadvantages of neodymium magnets.
Besides their remarkable magnetic power, neodymium magnets offer the following advantages:
- Their power is maintained, and after around ten years it decreases only by ~1% (theoretically),
- They do not lose their magnetic properties even under strong external field,
- By covering with a decorative coating of silver, the element presents an nice look,
- Magnets exhibit huge magnetic induction on the outer side,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Possibility of exact forming and modifying to individual applications,
- Universal use in modern industrial fields – they find application in data components, electric motors, precision medical tools, and industrial machines.
- Relatively small size with high pulling force – neodymium magnets offer high power in tiny dimensions, which enables their usage in miniature devices
Drawbacks and weaknesses of neodymium magnets: application proposals
- At strong impacts they can break, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
- We warn that neodymium magnets can lose their strength at high temperatures. To prevent this, we advise our specialized [AH] magnets, which work effectively even at 230°C.
- When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
- We suggest casing - magnetic mount, due to difficulties in creating threads inside the magnet and complex shapes.
- Potential hazard to health – tiny shards of magnets pose a threat, when accidentally swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these products are able to disrupt the diagnostic process medical in case of swallowing.
- Due to expensive raw materials, their price exceeds standard values,
Maximum lifting force for a neodymium magnet – what it depends on?
The declared magnet strength represents the peak performance, obtained under optimal environment, namely:
- using a base made of high-permeability steel, serving as a circuit closing element
- whose thickness equals approx. 10 mm
- characterized by smoothness
- with direct contact (without paint)
- during detachment in a direction vertical to the mounting surface
- in neutral thermal conditions
Lifting capacity in practice – influencing factors
During everyday use, the real power is determined by a number of factors, listed from crucial:
- Gap (between the magnet and the plate), as even a microscopic distance (e.g. 0.5 mm) leads to a drastic drop in lifting capacity by up to 50% (this also applies to paint, rust or dirt).
- Angle of force application – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times lower (approx. 1/5 of the lifting capacity).
- Substrate thickness – to utilize 100% power, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
- Material type – the best choice is pure iron steel. Cast iron may generate lower lifting capacity.
- Surface quality – the smoother and more polished the surface, the larger the contact zone and higher the lifting capacity. Unevenness acts like micro-gaps.
- Operating temperature – NdFeB sinters have a sensitivity to temperature. At higher temperatures they lose power, and at low temperatures they can be stronger (up to a certain limit).
* Lifting capacity testing was conducted on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under shearing force the lifting capacity is smaller. In addition, even a small distance {between} the magnet and the plate reduces the lifting capacity.
H&S for magnets
Cards and drives
Equipment safety: Neodymium magnets can damage payment cards and delicate electronics (pacemakers, hearing aids, timepieces).
Material brittleness
Protect your eyes. Magnets can fracture upon uncontrolled impact, launching shards into the air. Wear goggles.
Handling guide
Handle with care. Neodymium magnets act from a distance and connect with huge force, often quicker than you can move away.
Nickel allergy
Some people experience a hypersensitivity to Ni, which is the typical protective layer for neodymium magnets. Prolonged contact might lead to a rash. We strongly advise use protective gloves.
Machining danger
Powder created during grinding of magnets is self-igniting. Do not drill into magnets unless you are an expert.
Compass and GPS
Navigation devices and smartphones are highly susceptible to magnetic fields. Close proximity with a powerful NdFeB magnet can permanently damage the sensors in your phone.
Do not give to children
Absolutely store magnets out of reach of children. Choking hazard is significant, and the consequences of magnets clamping inside the body are fatal.
Warning for heart patients
Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or ask another person to work with the magnets.
Bodily injuries
Watch your fingers. Two powerful magnets will snap together immediately with a force of several hundred kilograms, crushing anything in their path. Be careful!
Heat sensitivity
Standard neodymium magnets (N-type) lose power when the temperature surpasses 80°C. The loss of strength is permanent.
Caution!
Details about risks in the article: Magnet Safety Guide.
