The heavy duty 4210/4510 Smoothee Series closers are high-security closers that feature special components to resist tampering and vandalism and meet ANSI/BHMA A156.4 Grade 1 standards. The closers are UL listed for self-closing doors and boast a 30-year limited warranty.
Forged steel parallel arms and heavy gauge metal security covers are designed for correctional, vandal-prone, institutional and other high traffic applications. A choice of finishes and cylinder functions meet correctional and vandal-resistant requirements. Materials include a high-strength cast iron cylinder, a one-piece forged steel piston, a double-heat-treated pinion, all-weather fluid, tamper-resistant regulating screws and a high-efficiency, full-complement, low-friction bearing. The LCN “Green Dial” ensures accurate spring force adjustments.
Cast iron body
LCN patented “Green Dial” spring force indicator
Quality and durability
TORX machine screw pack
Forged steel arm
Sized cylinders for interior doors to 5’0” and exterior doors to 4’0”
Non-sized cylinder is adjustable for interior doors to 4’6” and exterior doors to 3’6”
Closer meets American Disabilities Act (ADA) requirements
UL and cUL listed for self-closing doors without with regular or fusible link arms for self-closing doors
Tested and certified under ANSI Standard A156.4, Grade 1
Standard or optional custom powder coat finish
Standard handed cast iron closer
Standard handed heavy gauge metal security cover
Optional plated finish on metal cover, arm and fasteners
Optional SRI primer for installations in corrosive conditions is available with powder coat only
The 4210 Series mounts parallel arm push side. The 4510 Series mounts hinge pull side. Visit the 4210/4510 Series catalog pages for mounting details, arm options and accessories.