Industrial high speed doors are primarily composed of curtain or panel assemblies, drive motors with reduction gears, side guide rails (columns), control boxes, and sensing/triggering devices. The curtain is usually made of flexible materials such as PVC fabric or aluminum slats, and the shaft is installed in a head box above the door opening. A soft bottom beam with embedded weights is attached to the bottom of the curtain to enhance ground sealing and deform slightly upon encountering obstacles to activate safety protection.The curtain is guided by tensioning strips (zipper tracks) fixed within the side rails, maintaining proper tension and directing the curtain’s vertical motion. In the event of a collision, the tensioning strips will disengage automatically and reset via a self-recovery mechanism, protecting the door structure from damage. The motor, installed at the top of the door, typically includes a reducer or gear set and is controlled by a variable frequency drive (VFD) for soft start/stop. The control box houses a PLC or dedicated controller, VFD, and power circuitry, and its interface includes buttons such as open/close, emergency stop, and key switch for initiating and managing operations.