LCN 4021-LONG LH 689 Heavy-Duty Top Jamb Door Closer AL

LCN 4021-LONG LH 689 Heavy Duty Top Jamb Closer AL is the ideal solution for institutional and high-traffic applications. This left-hand, aluminum long arm door closer is designed to deliver exceptional performance while ensuring a smooth, reliable operation. The 4020 Series represents LCN's best performing heavy-duty closer, renowned for its quick and precise installation. This model features a non-sized cylinder that adjusts for interior doors up to 4'6" and exterior doors up to 3'6". It mounts on the top jamb (push side) and is available with a variety of options, including a standard or custom powder coat finish to suit your aesthetic needs. With a full plastic cover and a matte silver finish, the 4021 is both durable and visually appealing. Meeting ADA requirements, the 4021 also complies with UL and cUL standards, making it a reliable choice for safe, self-closing door applications. The hydraulic mounting ensures smooth operation, and its grade one certification under ANSI standards guarantees its robustness. Backed by a 30-year limited warranty, this door closer is an excellent investment for commercial installations, designed to stand the test of time in demanding environments.

Heavy Duty Top Jamb Closer AL

Long Arm Door Closer, Left Hand, Aluminum

The 4020 is LCN's best performing top jamb mounted heavy duty surface door closer designed for institutional and other high traffic applications.

The 4020 Series is designed specifically for high traffic applications.

LCN's 4020 Series is their best performing heavy duty closer that is known for its fast and accurate installation.

• Standard 4020 series closer is shipped with regular arm, standard plastic cover, and self reaming and tapping screws. See the Options tab for options.
• Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”.
• Non-sized cylinder (4021) adjustable for interior doors to 4’6” and exterior doors to 3’6”.
• Closer mounts top jamb (push side), specify right or left swinging door.
• 4021 cylinder meets ADA requirements.
• Standard or optional custom powder coat finish.
• Optional plated finish on metal cover, arm and fasteners.
• Optional SRI primer for installations in corrosive conditions is available with powder coat only.
• The 4020 Series is UL and cUL listed with regular or fusible link arms for self-closing doors.
• Tested and certified under ANSI Standard A156.4, grade one.

Resources

• 4020 Series Surface Mounted Closers Cut Sheet
• LCN 4000 Series Catalog
• LCN 4010, 4020 & 4110 Door Closer w/ Fusible Link Arm Installation Guide
• LCN 4020 Series Cut Sheet
• LCN 4020 Series Installation Instructions
• LCN Closers & Auto Operators Installation Guide
• Von Duprin Finishes Chart