Germany EFAFLEX high-speed shutter doors PVC spiral widely, spiral closed doors plot structure and lightweight patented physical body running up to the door 4m / s, square aluminum rod wind up wind performance guarantee door 120km / h, active anti- agencies to ensure that when the door hit knocked automatically reset, greatly reducing economic losses. ?? Product Features?? The world's fastest door! With the patented spiral rail technology, EFA-STR can hardly believe it's faster than 4m / s opening;? Speed ??champion and energy champion! EFA-STR speed result is significantly more energy-efficient, high-speed opening and closing can prevent internal and external convection, greatly reducing heat loss;? Rapid and safe! Safety in high speed, especially when a big problem. EFA-ACS active anti-collision system will provide you with the best security. In the event of a collision, EFA-STR? Lowermost door modules can be bilateral trip about 100? Cm high. Sensor detects the collision, and the subsequent controlled movement guided to the uppermost end position. With slow shutter speeds up to bilateral return unit. Such accurate rendezvous by electronic monitoring, but when you close the door has returned to normal working condition automatically. ?? Technical parameters door strip width: 225mm curtain Color:? A variety of colors curtain Material:? PVC maximum door size:? W7000mm * H6000mm largest anti-grace:? 120km / h maximum opening speed:?? 4m / s Fire Grade:? B2 with weights: spring open the maximum frequency:?? 150,000 / year door opening direction: vertical open drive:? frequency motor speed drive as EFAFLEX (Ai Fu / aifo to / Guelleh) China area? authorized dealers, Tianjin Science and Technology Development Co., Brown will make every effort to provide you with comprehensive services. Welcome to inquire:? 022-24335517 18822225505.