Taking control ™

Since 1877 LCN has been a pioneer in the industry, delivering door control solutions known for their meticulous engineering and quality control.

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What's new with LCN
LCN plant video


Look inside the LCN plant in Princeton, IL, USA as our dedicated employees discuss the shared commitment to quality and recent investments in state-of-the-art manufacturing technology.

Interactive installation instructions

Interactive installation

We’ve simplified product installation with digital, step-by-step instructions for the LCN 4040XP product, just scan the QR code printed on the paper instructions in the box.

LCN testing lab video

Beyond the

LCN goes above and beyond industry standards to ensure our product perform as intended in the real world with constant use and abuse as this video that goes inside our test lab highlights.

What people are saying about Von Duprin
LCN Products

Surface Mounted

  • Attaches directly to the door and/or frame for ease of installation
  • Delivers solutions for virtually any application with a broad portfolio and expert support
  • Features an industry leading line of cast iron closers known for durability

High Security

  • Designed to minimize tampering or vandalism with specialty components
  • Provides solutions for vandal prone applications such as correctional facilities
  • Features specialty fasteners and a metal cover

Overhead concealed

  • Concealed in the door or frame for aesthetically driven applications
  • Meets desired aesthetic without compromising strength and performance
  • Features heavy duty construction and smooth, quiet operation

Auto Operators

  • Low energy electromechanical and electrohydraulic swing operators for accessibility
  • Ideal for facilities wishing to service in-house, AADM certified technicians not required
  • Features solutions that are ANSI and UL certified

Fire & Life Safety

  • Hold open solutions for fire rated doors
  • Incorporate trusted LCN design elements such as the 4000 series cylinder
  • Features broad portfolio with single point, multi-point and tri-volt magnet offerings