Sprockets and chain are replaced in order to accelerate the ops limit shaft to increase the accuracy of the limit system for sectional doors 8ft H or less
The Apollo XBA4 is a 13.1 ft long line of indicator lights for the click fixture on the upper or lower side of the barrier arm of the M3BAR and M5BAR barrier gate openers.
A prepainted aluminum facing added to plywood core dry freight door
Premium grade 7 ply 3/4” panels manufactured with a medium density overlay (MDO) laminated to smooth hardwood outer veneers of Transportation Core plywood all designed for optimum strength and appearance.
2" track and rollers for durability.
Tongue and groove joint.
2 cable balancer with independent spring for each cable. Springs treated with rust preventative.