Zinc alloy chrome-plated anti-theft lock
According to the principle of the lock core, anti-theft locks can be divided into pin locks, leaf locks, magnetic locks, smart card door locks, fingerprint locks, etc.
Main technical indicators of anti-theft lock
1 Anti-theft door resists abnormal opening time 15min 30min 30min
2 Anti-drilling damage time 15min 30min 30min
3 Anti-saw damage time 5min 10min 10min
4 Anti-prying damage time 15min 30min 30min
5 Anti-pull destruction time 15min 30min 30min
6 Anti-impact damage time 15min 30min 30min
7 Anti-technology opening time 1min 5min 260min
8 Mutual opening rate ≤0.03% ≤0.01% ≤0.0003%
If the key bar is smooth and without teeth, such a lock is a magnetic lock. In fact, the key head is covered with a sleeve. If you remove the sleeve, you can see that there are three to five small dots inlaid on it. The magnetic lock is not reliable, and the cross lock is easy to open. Special tools for opening magnetic locks and cross locks are available on the market. With this tool, a thief can open most of the magnetic locks and cross locks within a minute or two.
The computer lock compound type lock is more reliable. The computer lock is just a professional name, not really using a computer to unlock the lock. There are three to five circular grooves on the computer lock key. These grooves are arranged and combined by the manufacturer with computers, so they are called computer locks.
The computer programs used by different manufacturers are mostly different. The location, size, and depth of the grooves are naturally different, so its mutual opening rate is much lower than that of cross locks and flat locks. Even a master of unlocking, it takes about ten minutes to open a computer lock.
There is also a kind of anti-theft door lock that is more reliable, that is, a composite lock. The so-called composite lock refers to the combination of two or more lock cylinders with different principles on the same lock.
The most common composite lock on the market is a combination of a pin lock and a magnetic lock. Professionals call it a magnetic composite lock. To unlock this kind of lock, you must first destroy the magnetism of the lock before it can be unlocked technically.
But the magnetic composite lock also has a fatal weakness. If the key is improperly stored, hit by gravity or encounter high temperature, it will be demagnetized. Once demagnetized, the lock cannot be opened.
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