Anti-theft lock

- Aug 16, 2018-

Anti-theft lock:

Technical indicators

Main technical index of anti-theft lock

Serial number inspection item technical standard

Class A (line standard) B level (line standard) super B level (enterprise standard)

1 security door to resist abnormal opening time 15min 30min 30min

2 drilling damage time 15min 30min 30min

3 anti sawing damage time 5min 10min 10min

4 anti prying damage time 15min 30min 30min

5 the tensile failure time is 15min 30min 30min

6 anti impact damage time 15min 30min 30min

7 protection technology opening time 1min 5min 260min

8 interoperability rate is less than 0.03% or less than 0.01% 0.0003%.


According to the principle of lock core, anti-theft lock can be divided into bullet lock, blade lock, magnetic lock, IC card lock, fingerprint lock and so on.

Billiard locks and magnetic locks are more common. Like zigzag locks, cross locks, computer locks, etc. are all bullet locks; magnetic locks used to be more popular, but less common after 2010.

Selection criteria:

One, lock material this involves a lot of professional knowledge and the technology of each manufacturer, Mainland China generally produces iron, steel, stainless steel, zinc alloy, due to process and cost constraints, lock rod hardness is not enough, often easy to be vigorously clamped, hydraulic clamp cut.

Two, lock core people buy locks only look at the shape, feel great will be good. However, no matter which kind of domestic lock is bought, the lock core is generally copper, the characteristics of copper is soft, drill, concentrated acid, you can easily destroy the copper lock core. There are also differences in the types of lock cores, the more commonly used lock cores are European lock cores, in addition, there are American thread lock cores, fire lock cores, the latter two relatively high security, American lock cores used in high-grade locks, good quality, high security, fire lock cores used in fire door locks, can withstand 975 degrees of high temperature 90 minutes, belongs to A special door lock core is enforced by the state.

3. There are many keys for keys and locks. They are cross, round mouth, crescent, various. Many keys are made of copper or aluminium-ferroalloy, which can be easily duplicated. Better materials are steel and new electronic keys. They are safer.


If the key rod is smooth and has no fangs, the 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 or five dots embedded in it. The magnetic lock is very unstable, and the opening of the cross lock is very convenient. Special tools for opening magnetic and cross locks are available on the market. With these tools, thieves can open most magnetic and cross locks in a minute or two.

Computer lock compound lock is more reliable, computer lock is only a professional term, not really use the computer to unlock. Computer lock keys have three to five circular grooves, these grooves are the manufacturer's computer array combination, so called computer lock.

Different manufacturers, computer programs are mostly different, punched out of the groove is naturally different location, size, depth, so its mutual opening rate is much lower than the cross lock, a word lock. Even if you are a lock master, it will take about ten minutes to open a computer lock.

Another kind of anti-theft door lock is also reliable, that is, compound lock. The so-called compound lock refers to the combination of two or more different principles of lock core on the same lock.

The most common compound lock on the market is the combination of bullet lock and magnetic lock, which is called magnetic compound lock by professionals. To open this kind of lock, we must first destroy the magnetism of the lock and then unlock it technically.

But the magnetic compound lock also has a fatal weakness, if the key improper storage, by gravity impact or encounter high temperature will be demagnetized. Once degaussing, the lock can't be opened.