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These heavy-duty closers are designed specifically for unique applications

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The 4010, 4020 and 4110 Series are heavy-duty closers that meet demands for high-traffic installations, and each are designed specifically for unique mounting applications.


  • Cast iron cylinder with full-complement bearing
  • 1-1/2” diameter piston
  • Double heat-treated steel pinion journal
  • All-weather fluid
  • LCN patented Green Dial spring power indicator
  • Application specific handed
  • Standard plastic cover
  • Adjustable spring sizes 1-5 or 6 only
  • 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”
  • Meets ADA requirements
  • UL and cUL listed for self-closing doors with regular or fusible link arms for self-closing doors
  • Tested and certified under ANSI/BHMA A156.4 Grade 1
  • Powder coat finish offered in standard colors and a large selection of optional custom colors
  • 30 year limited warranty