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4510 Series
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LCN 4510 Series
The 4510 Smoothee® Series is a heavy duty, high security closer with special components to minimize tampering and vandalism. Forged steel double lever arms and heavy gauge metal security covers are designed for correctional, vandal prone, institutional and other high traffic applications. The closer has passed 10,000,000 cycles in independent testing. A choice of finishes and cylinder functions meet correctional and vandal resistant requirements.
  • Standard 4510 series closer shipped with extra duty arm (non hold-open), metal security cover, and TORX Machine Screw pack
  • Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”
  • Non-sized cylinder adjustable for interior doors to 4’6” and exterior doors to 3’6”
  • Closer mounts hinge side, specify right or left swinging door
  • 4511 cylinder meets ADA requirements
  • Standard or optional custom powder coat finish
  • Optional SRI primer for installations in corrosive conditions
  • UL listed for self-closing doors
  • Tested and certified under ANSI Standard A156.4, grade one
Extra Duty Arm, 4510-3077EDA
Non-handed arm, features solid forged steel main arm and forearm for potentially abusive installations. Double slab arm/pinion attachment for maximum strength.
Standard Security Track Arm, 4510T-3077T
Handed arm features solid forged steel, large cross section arm. Special threaded attachment of track roller for potentially abusive installations. Double slab arm/pinion attachment for maximum strength. Can only be used with high security track roller, 4510T-3034. Roller is included with arm when 4510T-3077T is ordered separately.

Standard Finishes:

  • Powder coat
  • Plated

Custom finishes available upon request


Cylinder Available
Handed x
Non-handed x
Sized x
Accessibility x
Delayed Action x

Cylinder, 4510-3071
Standard, handed cast iron cylinder assembly


Cover Available
Metal x

Security Cover, 4510-72MC
Standard, handed, heavy gauge metal security cover. Four point mounting for extra security. Closer adjustments not accessible with cover installed.

Installation Accessories
Plate, 4510-18
Required where top rail is less than 3 1/2” (89 mm). Plate requires minimum 2” (51 mm) top rail.