LCN 4040XPTSTDAL Super Smoothee Heavy Duty Adjustable 1-4 Surface Mounted Regular Track Door Closer with TBSRT Thru Bolts 689 Aluminum Finish

The LCN 4040XPT is a heavy-duty surface mounted track closer that mounts on the push side parallel arm configuration. This Grade 1 closer handles high-traffic commercial applications where door weight and cycle durability matter most. The track mounting system distributes opening forces across the door frame rather than concentrating stress at hinge points.

Built with forged steel main arm and double heat treated steel pinion, this closer delivers consistent performance in demanding environments. The all-weather fluid maintains smooth operation across temperature extremes. Cast iron body construction withstands years of heavy use while the adjustable spring sizes 1-4 accommodate doors from lightweight to extra heavy-duty applications.

Series	4040XPT
ANSI Grade	Grade 1
Mounting	Surface Track
Spring Size	Adjustable 1-4
Finish	689 Aluminum
Material	Cast Iron

This closer meets ANSI/BHMA A156.4 Grade 1 standards and carries UL listing for fire-rated door applications. The UL and cUL certifications ensure compatibility with fire door assemblies requiring positive pressure testing.

The adjustable spring mechanism lets you match closing force to door weight and width requirements. Door closer selection depends on proper spring sizing for your specific application. For fire door installations, UL 10C fire-rated assemblies require listed closers that maintain positive pressure during testing.