LCN CLOSERS
121 W. RAILROAD AVE.
P.O. BOX 100
PRINCETON, IL, USA 61356-0100
PHONE 800-526-2400
FAX 800-248-1460
www.lcn.ingersollrand.com
3/10
Standard 4020 series closer is shipped with regular arm, standard plastic cover,
and self reaming and tapping screws. See 4020 Series page 17 for options.
Size 6 cylinder 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. See 4020 Series page 18.
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.
The 4020 SMOOTHEE
®
is LCN’s
best performing heavy duty
closer designed specifically
for institutional and other
rugged high traffic
applications.
Ten Million Cycles
Cast Iron
Forged Steel Main Arm
Double Heat Treated Steel
Pinion
All Weather Fluid
LCN
®
Fast
™
Power Adjust
Fast & Accurate Installation
UL & cUL Listed
LCN
4020 SERIES
Available
Not available
Closer available with less than 5.0 lbs. opening force on 36" door.
**Maximum opening/hold-open point with standard template.
*** Advanced Variable Backcheck
15
TOP JAMB (PUSH SIDE) MOUNT
The 4021 includes the
LCN
®
FAST™ Power Adjust,
a revolutionary visual indicator
for Spring Power Adjustment.