Alas, I heard that many people are looking for LED screen magnets recently? Are you having a headache, too——​ ​There are many things on Taobao that cost 500 yuan to 500 yuan. Who should I believe in? ​ ​ Don’t worry, the old man who has been working in the project for ten years will give you some tricks!

1. First find out the type of magnets and don't be suckers

(It's too late to cry if you buy the wrong model)

​​► Neodymium iron boron strong magnet VS ferrite magnet​​

• Neodymium iron boron magnet is 10 times more powerful than ordinary magnets, but the unit price is 3-5 times more expensive
• Ferrite is cheap but rust easily, suitable for short-term use

​​Real cases​​: Last year, the LED screen in a shopping mall fell off in the middle of the night. It was found that it was a low-quality ferrite magnet, and the repair cost was 200 times more expensive than the magnet money!

​​► Magnetic structure is very particular​​

• The N35 grade is sufficient for box splicing
• Curved screens must be made of opposite-sex magnets with buffer pads

2. The depth of procurement channels remember these 3 life-saving rules

(It's all about making money)

​​Rule 1: See if the manufacturer dares to post the test report​​

• Salt spray test ≥72 hours (rust prevention indicator)
• Magnetic attenuation rate <5%/year
  Last year, I helped the customer inspect the factory and found that the magnet salt spray test of a celebrity store was rusted in just 24 hours. This kind of outdoor screen is absolutely deadly!

​​Rule 2: Factory with a monthly output of more than 100,000 tablets will be preferred​​
The assembly line of a large factory uses robotic arms to dispense, and the tolerance of the magnetic chip is controlled at ±0.05mm, which is 10 times more accurate than manual

​​Rule 3: Take samples to test​​
A trick to teach you: use a magnet to suck the stainless steel plate, and hold two bottles of 1.5L mineral water that can last for 10 minutes is considered qualified

3. Pit avoidance guide: 90% of beginners will step on the lightning

(The money saved is enough to eat hot pot for half a year)

​​Minefield 1: Ignore the installation environment​​

• Seaside projects must use nickel-plated neodymium magnet (anti-corrosion)
• Low-temperature resistant glue should be selected in the north in winter

​​Minesfield 2: Buy miscellaneous brands with greed for cheap​​
A certain engineering team bought a magnet worth 50 cents per piece, but it broke halfway during installation, and the construction period was delayed and the liquidated damages were compensated for 80,000 yuan.

​​Minesce 3: Do not check logistics packaging​​
Magnet transportation must be separated by pearl cotton! The most outrageous thing I have ever encountered: 2,000 magnets were sucked into a lump at the construction site, and the worker cut them with an angle grinder for three days...

Exclusive data broadcast:

Recently, 32 projects in Southeast Asia were counted, and using the magnets can save this money:

• Installation efficiency is improved by 40% (fast disassembly and assembly saves labor)
• Maintenance costs are reduced by 67% in five years (high-quality magnets do not fall off)
• Transportation loss is reduced by 83% (standard packaging and anti-adhesion)

After all, buying LED screen magnets is like finding a partner——​​Just looking at your face is not enough, you have to find out your wealth! ​ ​ Remember to throw out these three consecutive questions when purchasing next time: Can you provide a test report? What is the monthly production capacity? Do you dare to send samples for actual testing? Make sure the seller dare not fool you!

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