One, which anti-theft door is better
An anti-theft door is a door equipped with anti-theft locks that can resist unauthorized opening under certain conditions for a specified period, possessing a certain level of security and safety, and complying with relevant anti-theft security standards. Currently, there are many types of anti-theft doors available in the market. According to the GB25-92 standard issued by the Public Security Bureau, anti-theft doors can be divided into three types: grille-type anti-theft doors, solid-core doors, and composite doors.
A wrought-iron security door is a commonly used type of security door made of welded steel pipes. Its main advantages include good ventilation, lightweight construction, and aesthetically pleasing design, along with relatively low cost. This security door consists of a wrought-iron or steel plate upper section and a cold-rolled steel plate lower section, with multiple locking points to ensure its anti-theft capabilities. However, it is less effective than a solid-core security door.
The solid-core doors are manufactured using cold-rolled steel, with steel plates for the entire door panel. The steel plate thickness typically ranges from 1.2mm to 1.5mm, offering high impact resistance. The door leaf features a double-layer steel plate filled with rock wool insulation and fire-resistant materials, providing features such as anti-theft, fire protection, thermal insulation, and sound insulation. Solid-core security doors typically include features such as peepholes and doorbells.
A composite anti-theft door consists of a solid door and a mesh-type anti-theft door, offering features such as anti-theft protection, summer mosquito and fly protection, ventilation and cooling, winter insulation and soundproofing.
Two. What should be considered when selecting anti-theft doors.
1、Certificate of Conformity
When selecting anti-theft doors, first check for its inspection certificate. Then, verify its production certificate, which must be issued by the provincial Public Security Bureau in the company's location. It is essential to choose anti-theft doors with the FAM anti-theft marking on the door body. FAM represents the anti-theft door standards for JYBD, which correspond to the A, B, C, and D levels. The higher the level, the stronger the anti-theft capabilities. Level A is the highest level.
2、Security door styles
In addition to selecting anti-theft doors with good anti-theft performance, it is also important to pay attention to their style. The main components of anti-theft door safety are the level of the door and the level of the lock. When selecting, it is particularly important to pay attention to the lock. Having more lock points does not necessarily indicate better anti-theft performance.
3、Anti-theft door locks
The best door locks to choose are those with a rating of Super B. Good anti-theft door locks typically have locks on three or five sides. During use, the door lock must be locked, and its upper and lower rods should be inserted into the locking mechanism. Additionally, a sealing strip will be located on the side of the door. The sealing strip prevents noise from being generated when the door is closed.
4、Anti-theft door manufacturing process
Security doors can be manufactured through stamping and welding processes. Stamped doors are generally superior to welded doors. However, stamped doors require specialized imported equipment, which increases their cost.
5、Check the thickness of the steel plate.
The steel plate thickness of the door frame should be greater than 2mm, and the steel plate thickness of the door itself should be at least 1mm. The overall thickness of the door should be 20mm, and the total weight of the complete set should be at least 40kg. Furthermore, reinforcing steel bars and asbestos filler should be included inside. The thicker the steel plate, the better the door quality will be. During actual purchase, the quality can be easily judged by simple observation. A thick steel plate will also be more difficult to push, and a dull, heavy knocking sound indicates a solid door. A hollow sound indicates that the security door may have issues.
6、Check the hinge's opening and closing function and load-bearing capacity.
Hinges are used to connect the fixed door leaf to the door frame. They control the opening angle of rotating doors, typically around 100 degrees, with a total range of 25 to 180 degrees. Standard anti-theft door leaves can weigh up to several tens of kilograms, so hinges must have high load-bearing capacity. If the hinges do not meet the load requirements, they are prone to failure with repeated use. Additionally, larger rotation ranges are more convenient to use.
7、Inspect the filling material
Different grades of anti-theft doors use different materials, and the filling functions also vary. Generally, low-grade anti-theft doors use honeycomb paper for filling, which is very cost-effective. Grade B doors can withstand pressure and are fire-resistant without cracking or delamination. The materials used are mineral wool and polyester. Grade A anti-theft doors have excellent sound insulation and fire resistance. The materials used are aluminum foil. Before purchasing, it is recommended to understand the properties of the materials.