This door closer mounts to the push side top jamb and controls opening and closing force for right-handed doors. The LCN 4021 handles high-traffic commercial applications where reliable door control prevents damage while meeting accessibility requirements. The adjustable spring force accommodates doors of varying weight and width.
Cast iron construction with forged steel main arm and double heat treated steel pinion delivers long-term durability. All weather fluid keeps the closer operating in temperature extremes. The aluminum finish resists corrosion in exterior applications. Peel and stick templates speed installation with precise hole placement.
| Series | 4020 |
|---|---|
| ANSI Grade | Grade 1 |
| Mounting | Top Jamb Push Side |
| Handing | Right Hand |
| Finish | 689 Aluminum |
| Material | Cast Iron |
This closer meets ANSI/BHMA A156.4 Grade 1 requirements and carries UL listing. Grade 1 certification ensures the closer withstands 2 million test cycles for heavy commercial use.
Spring size selection depends on door dimensions and weight requirements covered in our door closer selection guide. For code compliance details on Grade 1 performance standards, see our ANSI A156.4 door closers reference.