LCN 4000T Series Closer

LCN 4000T Series Closer

The 4000T is a heavy duty closer to reliably control fire and smoke barrier doors with maximum swing of 90°. Designed for use with an SEM 7850 wall magnet.

  • Cast Iron
  • Forged Steel Arm
  • Double Heat Treated Steel
  • Pinion
  • All-Weather Fluid


  • UL & cUL Listed 4000T series closer is shipped with standard arm, standard track, track roller, standard plastic cover, and wood and machine screw pack. See 4000T Series page 73 for options.
  • Sized cylinders for interior fire/smoke barrier doors to 4’0”.
  • Closer mounts in a wall pocket, hinge side, on either right or left hand door.
  • 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 4000T Series is UL and cUL listed with a standard arm for self-closing doors.
  • Tested and certified under ANSI Standard A156.4, grade one.


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