The electric rolling shutter door is suitable for commercial facade, garage, factory, mining enterprise and other public places or residential buildings. Especially the door opening is large, which is inconvenient to install the ground door body, which plays a role of convenient and quick opening. So how to distinguish the quality of electric rolling shutter door? Here's your introduction:

1、電動卷簾門等級按防破壞時間長短、板材厚度等指標。新標準對防盜等級劃分，將防盜級別調整為“甲”、“乙”、“丙”、“丁”4級，甲的級別較高，依此遞減。電動卷簾門的防破壞時間也是逐級遞減的，較低的丁級為少6分鐘。

1. The grade of electric rolling shutter door is based on the anti damage time and plate thickness. According to the new standard, the anti-theft security level is adjusted to "a", "B", "C" and "d". The level of a is higher, and it will decrease accordingly. The anti damage time of electric rolling shutter door is also decreasing step by step, and the lower grade D is at least 6 minutes.

2、電動卷簾門的門扇，門扇的鋼質板材厚度。甲、乙、丙、丁級分別應達到2毫米、2毫米、1.8毫米和1.5毫米。鋼板的厚度直接關系到電動卷簾門防盜性能。好的鋼質電動卷簾門骨架中有石棉等具有防火、保溫、隔音功能等填充材料。

2. The thickness of steel plate of electric rolling shutter door. Class A, B, C and D should reach 2 mm, 2 mm, 1.8 mm and 1.5 mm respectively. The thickness of steel plate is directly related to the security performance of electric rolling shutter door. Good steel electric rolling shutter door frame has asbestos and other filling materials with fire prevention, thermal insulation and sound insulation functions.

3、電動卷簾門標記。新標準還增加了可以幫助消費者識別電動卷簾門真偽的內容，就是要求電動卷簾門應有固定標記。電動卷簾門標記共由3部分組成，標記符號為拼音字母，從左到右分別為防盜門代號（fam）、防盜級別和企業自定義特征（包括企業代號和產品代號兩部分）。其中，防盜級別標記固定在內側鉸鏈邊上角距地面高度160厘米左右的位置上。而“金屬門”、“鋼制門”、“進戶門”等均不是電動卷簾門，提醒消費者在采購電動卷簾門的時候要仔細辨別。

3. Electric roller shutter door marking. The new standard also adds the content that can help consumers identify the authenticity of the electric rolling shutter door, which requires that the electric rolling shutter door should have fixed marks. The mark of electric rolling shutter door is composed of three parts. The mark symbol is pinyin letter. From left to right, it is the code of anti-theft safety door (FAM), anti-theft security level and enterprise self-defined characteristics (including enterprise code and product code). Among them, the anti-theft security level mark is fixed on the position about 160 cm above the ground on the inner hinge edge. And "metal door", "steel door", "door into the door" are not electric rolling shutter door, remind consumers to carefully identify when purchasing electric rolling shutter door.

4、觀察電動卷簾門的結構是否精密，潤滑程度好壞，好的電動卷簾門散熱比較，采用全齒輪轉動，無鏈條、無皮帶，進而增強了卷簾門機芯整體壽命。

4. Observe whether the structure of the electric rolling shutter door is precise, the lubrication degree is good or not, and a good heat dissipation comparison of the electric rolling shutter door adopts full gear rotation, no chain and no belt, thus enhancing the overall life of the rolling shutter door movement.

5、電動卷簾門鎖具。電動卷簾門有自鎖、防撬的功能。按新標準規定，電動卷簾門的鎖具應能在防破壞時間內，即使鉆掉鎖芯、撬斷鎖體連接件從而拆卸鎖具或通過上下間隙伸進撬扒工具，松開鎖舌等，也無法打開門扇；門框與門扇間的鎖閉點，按照防盜級別甲、乙、丙、丁應分別不少于12個、10個、8個和6個；電動卷簾門主鎖舌伸出有效長度應不小于16毫米，并應有電動卷簾門鎖舌止動裝置。

5. Electric rolling shutter door lock. The electric rolling shutter door has the function of self-locking and anti prying. According to the new standard, the lock of electric rolling shutter door shall be able to open the door even if the lock core is drilled out, the lock body connector is broken to remove the lock, or the prying tool is extended through the upper and lower clearance, and the locking tongue is released. According to the anti-theft security level a, B, C and D, the locking points between the door frame and the door leaf shall not be less than 12, 10, 8 and 6 respectively The effective length of the main locking tongue of the movable rolling shutter door shall not be less than 16 mm, and the locking device of the electric rolling shutter door latch shall be provided.

6、購買時還應注意“防盜門”的“FAM”標志、企業名稱、執行標準等內容，符合標準的門才能既又可靠。

6. Pay attention to the "fam" sign, enterprise name, executive standard and other contents of the "anti-theft safety door" when purchasing, so that the door meeting the standard can be both safe and reliable.