Element 1: Certificate of conformity - the formal electric rolling door has the inspection certificate issued by the legal inspection organization and the production certificate of safety technology prevention products issued by the safety technology Prevention Department of the provincial public security department (bureau) where the manufacturer is located.

要素2:等級——等級電動卷簾門分為A、B、C3級。C級防盜性能高,B級其次,A級低,市面上多為A級,普遍適用于一般家庭。A級要求:全鋼質、平開全封閉式,普通機械手工工具與便攜式電動工具相互作用下,其薄弱環夠抵抗非正常開啟的凈時間≥15分,或應不能切割出一個穿透門體的615平方厘米的洞口。

Element 2: Level - safety level the safety of electric rolling shutter door is divided into levels a, B and C3. Class C has high anti-theft performance, followed by class B, and class A is low. Most of them are class A on the market, which is generally applicable to ordinary families. Class a requirements: all steel, flat open and fully enclosed. Under the interaction of ordinary mechanical hand tools and portable electric tools, the net time for the weak link to resist abnormal opening shall be ≥ 15 minutes, or a 615 square centimeter hole penetrating the door body shall not be cut.

要素3:材質——材質目前較普遍用不銹鋼,美觀、耐用、防銹蝕。主要看兩點:①牌號現流行的不銹鋼電動卷簾門材質以牌號302、304為主;②鋼板厚度門框鋼板厚度不小于2cm,門扇前后面鋼板厚度一般在0.8cm～1cm之間,門扇內部設有骨架和加強板。

Element 3: material - at present, stainless steel is widely used, which is beautiful, durable and anti-corrosion. There are two main points: ① the popular stainless steel electric rolling shutter doors are mainly made of grades 302 and 304; ② The thickness of steel plate is not less than 2cm for the door frame. The thickness of steel plate at the front and back of the door leaf is generally between 0.8cm and 1cm. The door leaf is internally provided with framework and reinforcing plate.

要素4:功能——電動卷簾門是否支持手動功能,手動要方便,快捷。停電時將離合扭轉90度,即可手推運行。電動卷簾門不能存在慣性滑行的現象,要具有雙面自動卡鎖功能。為了提高電動卷簾門運行平穩程度,要增強拉力,所以需要采用的是8輪前后驅動,連排齒輪轉動的生產安裝技術。

Element 4: function - whether the electric rolling shutter door supports manual function, which should be convenient and fast. In case of power failure, turn the clutch 90 degrees to manually push it. The electric rolling shutter door shall not have the phenomenon of inertial sliding, and shall have the function of double-sided automatic locking. In order to improve the running stability of the electric rolling shutter door and enhance the tension, the production and installation technology of 8-wheel front and rear drive and continuous gear rotation needs to be adopted.

要素5:結構——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。

Element 5: structure - observe whether the structure of the electric rolling shutter door is precise and whether the lubrication degree is good or not. A good electric rolling shutter door has better heat dissipation. It adopts full gear rotation without chain and belt, so as to enhance the overall service life of the rolling shutter door movement.