Description

Application: The 4020 is a heavy duty closer with adjustable spring power using the LCN Green Dial. This creates a custom fit to meet the specific demands of high traffic use and brings reliable performance.

Spring Size:
• The spring power of non-sized 4021 cylinder is adjustable from size 1 through size 5 and is shipped set to size 3
• Non-sized cylinder is adjustable for interior doors to 4’6” and exterior doors to 3’6”
• Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”
• Sized 4020 Series cylinders available in size 6 (Special Order)
• Delayed action not available with 4026 cylinder

4020 Series Shipped with:
• 4021-3071 – Standard Cylinder – (Adjustable 1-5)
• 4020-3077 – Regular Arm (Non-Handed)
• 4020-72 – Standard Plastic Cover
• Self-reaming and tapping screws (SRT)

Certifications
• Grade 1 – ANSI A156.4, UL 10C, ADA, 100 hour salt spray, meets BAA – Buy American Act
• Closer meets ADA requirements
• UL and cUL listed for self-closing doors with regular or fusible link arms for self-closing doors

Mounting: Top jamb (Pull side) Arms Regular arm

Body construction:
• Cast iron body
• Full complement bearing
• 1 1/2″ diameter piston
• 11/16″ diameter double heat treated pinion journal

Fluid: All weather fluid

Handing: Handed (LH or RH)

Templating: Peel-n-Stick templates – 2 1/2″ x 6″ mounting hole pattern

Warranty: 30 years

Cover:
• Plastic, standard
• Metal, optional

Finishes/Colors:
• 689 – Aluminum
• 695 – Dark bronze