LCN 4021-REG LH 689 MC SRI Heavy-Duty Top Jamb Door Closer AL

LCN 4021-REG LH 689 MC SRI Heavy Duty Top Jamb Closer AL offers exceptional performance in high-traffic settings, making it an ideal choice for institutional applications. This reliable regular arm door closer features a full metal cover and a special rust inhibitor, ensuring longevity and resilience in various environments. Designed specifically for left-handed doors, it provides efficient and consistent operation while meeting ADA requirements. The 4020 series is renowned for its fast and precise installation, accommodating interior doors up to 4'6" and exterior doors up to 3'6" with its adjustable non-sized cylinder. Its top jamb mounting style ensures a seamless fit on the push side of the door. With a tested and certified Grade 1 rating under ANSI Standard A156.4, this model guarantees robust performance. Customization options include a standard or custom powder coat finish and an optional plated finish on the metal cover, arm, and fasteners. The hydraulic mounting group and cold weather fluid compatibility enhance its adaptability across a range of conditions. Backed by a generous 30-year limited warranty, the LCN 4021 door closer combines durability and functionality, making it a trusted solution for commercial installations.

Heavy Duty Top Jamb Closer AL

Regular Arm Door Closer, Metal Cover, Special Rust Inhibitor, 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