RapidSlat 621 Series


The RapidSlat® Series 621 Stormtite™ Door is best suited to situations and applications with weather extremes. For example, agricultural facilities in the Midwest would benefit from the door’s rugged construction and weather sealed jambs

Max. standard width

up to 20′ (6096 mm) depending on gauge and slat type

Max. standard height

up to 20′ (6096 mm) depending on gauge and slat type


Intererior or Exterior face of wall


Interlocking roll-formed slats, end locks attached to prevent lateral movement; 22 gauge steel Flat Profile type F-265 for doors up to 20′ wide; 22 gauge galvanized steel

Bottom Bar

Two primed, black painted angles (min. thickness 3/16”) with 2-wire, self-monitoring, fail safe, electric sensing edge with yellow/black striped vinyl cover


Structural primed black painted galvanized steel, 1/4” min. thickness


Direct drive hypoid gear motor/brake assembly (20” per sec up speed / 12” per sec down speed); drive assembly and limit sensors are factory pre-assembled; manual crank for power outage

Control Panel

Variable frequency drive controller with self diagnostics (time delay self close timer and non-resettable cycle counter included); two line LCD readout, enclosure NEMA 4X rated


24 gauge galvanized steel primed, black painted; interior hood baffle included

Door Roll

Direct driven, springless roll with integrated shafts; self aligning greasable sealed bearings; door does not require counterbalance device

Safety Devices

Photoelectric sensors; 2-wire black/yellow striped electric fail-safe sensing edge; automatic stop-lock brake


Single open/close/stop push button station incorporated into Control Panel

Curtain Finish

Gray or tan powdercoat with “anti-graffiti” hardening additive


20 psf when wear strips are not specified