Dynatect has supplied custom roll-up machine doors and curtains for over 30 years. While customers have used Dynatect roll-up doors in laser-safe applications, Dynatect’s doors are not rated nor certified laser safe and may require the approval of a site laser safety officer. Dynatect’s customers have consistently and successfully conducted their own safety analysis and approval for each application. See below for video and design details.
Dynatect has evolved the door design to combine two well-established technologies of Alumaflex Doors and Gortite® Automated Machine Safety Doors (AMSD).
Alumaflex “Type B” double-wall anodized aluminum slats feature a ball-and-socket style configuration that is both strong and light tight. This type of hollow aluminum semi-reflective extrusion serves as a functional light-tight heat-dissipating barrier. For larger doors, Dynatect may reinforce the integrity of the Alumaflex by adhering performance enhancing fabric to the non-laser side of the door.
Results from customer tests on Alumaflex include: 6kW laser power, 1100mm defocus distance; burn-through time exceeds 100 seconds. (The testing was performed by a customer, not an independent lab)
Gortite Automated Machine Safety Doors feature modular base plates, header and legs specifically designed for large, fast, mission critical doors. The legs feature guides that accept the Alumaflex door to maintain a light-safe labyrinth. The Alumaflex door is rolled up onto a drum in the header. The base plates allow for free-standing door. There are integrated T-slot channels on multiple surfaces to easily mount other components and/or safety considerations. This technology includes a motor/gearbox/brake drive and non-contact travel-end sensors. Options include traveling photo-eyes (door auto-reverse), door closed safety interlock switch, and control systems.
Together these AMSD & Alumaflex technologies provide modular, economical, light-tight, secure, robust, and rapid doors ideal for laser applications. Door travel speed up to 20”/second. Door widths up to 12 feet, door height up to 10 feet. No additional counterweights, tension springs, or hold-down switches are required.