1、Segmented door panel system: Standard single-panel height = 500 mm; conventional: 40/50 mm polyurethane sandwich panels; special acoustic-insulating, fire-resistant, or crack-detecting doors are reinforced to a thickness of 80–120 mm; panel: galvanized cold-rolled steel sheet (1.0–1.5 mm); door panels feature anti-hand-clamp recessed and protruding joints.
2、Track Guidance System: Hot-dip galvanized C-shaped tracks and nylon silent pulleys; for vertical lifting applications, reinforced load-bearing tracks shall be installed; for oversized doors, additional side-load-bearing steel trusses shall be added.
3、Balancing System (Key Selection Point): For small to medium-sized door openings: torsion spring balancing system; for oversized doors or special heavy-duty doors (e.g., non-destructive testing doors, heavy-duty sound-insulating fire doors): wire rope + counterweight balancing system (strongly recommended due to its longer service life and simpler maintenance).
4、Drives the electric control system with a 380V industrial motor; variable frequency drive option available; includes power-off manual release function; and features reserved dry contact points for fire linkage systems.
5、Safety System (Mandatory Standard): Lower airbags, photoelectric curtain system, anti-rope breakage locking mechanism, fall protection device, travel limiters