You can also purchase a high-performance rolling door from United Steel Products that include a Nema 4/4x control panel with digital display, easy-to-program digital open and close limits, adjustable door speed, and the option for a variety of access controls. Optional features for high-performance rolling doors include a laser light curtain for added safety, customized materials and finishes, and ventilating curtains.
The laser curtain detects movement and will stop and reverse a closing door if something passes through it. For materials and finishes, you can choose from stainless steel, anodized aluminum, powder coating, or hot-dipped galvanized steel. Ventilated curtains can be perforated slats, fenestrated slats, or steel rod grilles.
High-performance rolling doors are available in the Model 300-HPD or the Model 400-HPD. These doors are manufactured with an innovative direct-drive operator system that eliminates the need for springs. This mechanism keeps the curtain aligned better, reduces the need for maintenance, and gives the rolling door a life cycle five times as long as spring doors. This feature also allows the speed of the door to open at speeds up to 48 inches per second and close at 24 inches per second.
Get more information about the Hi-Performance Door models.