LCN products are a mix of traditional cast and forged products of the past to modern high technology. Cast iron closer cylinder bodies began as the industry standard in the first half of the 1990s and continue into the new century, to be considered the best material. Forged pistons are also still used in the heavy duty closers being manufactured today.
1000 Series Surface Closers 4000 Series Surface Closers Concealed Overhead Closers Fire/Life Safety Closers/Holders
The 4040SE SENTRONIC®is a heavy duty, non-handed, nonsized closer/holder designed to provide single point hold-open for fire and smoke barrier doors.
The door is held open until current interruption releases the holding mechanism and the door closes. Single lever (track) arm closer is specifically designed for interior doors. Choice of finishes, track functions, and installation accessories meet virtually all life safety requirements.