Don-Jo HDCC US26D Heavy Duty Crash Chain | Commercial Door Swing Limiter

The Don-Jo HDCC US26D Heavy Duty Crash Chain is an industrial-grade security and maintenance component designed to protect exterior commercial doors, frames, and building facades from wind-driven damage or over-extension. This heavy-duty spring chain acts as a robust door swing limiter, absorbing the kinetic energy of a door forced open by high winds or aggressive use. Unlike lightweight residential versions, the HDCC is engineered specifically for the weight and surface area of commercial steel and solid-core wood doors.

Encased in a durable gray vinyl cover, this commercial door crash chain prevents the door from striking the building exterior or over-extending the hinges, which can lead to costly frame misalignment. It is an essential solution for door protection in high-wind corridors or for doors equipped with parallel arm closers that require a secondary physical stop.

Key Features & Performance

• Heavy-Duty Spring Absorption: Features an integrated shock-absorbing spring designed to decelerate heavy doors safely, acting as a critical solution for door security and structural longevity.
• Commercial Grade Performance: Complies with ANSI # LB2231 standards, ensuring it meets the rigorous requirements for industrial and institutional facilities.
  
• Weather-Resistant Protection: The gray vinyl cover shields the heavy-gauge chain from the elements while preventing the chain from marring the door's finish during operation.
  
• Satin Chrome Finish: Provided in a professional US26D Satin Chrome finish, offering superior corrosion resistance and a clean aesthetic that matches standard commercial hardware.
  
• High-Strength Hardware: Furnished with #10 x 1 inch wood/sheet metal combo screws, providing a secure mount into various door and frame materials.
  

Available Lengths & Sizing Guide

• 25-1/2" Length: The standard solution for 36" door width reinforcement.
• 30-1/2" Length: Recommended for doors over 36" width or 36" doors with parallel arm closers, providing the necessary clearance for complex hardware configurations.
  

Technical Details & Specifications

• Brand: Don-Jo
• Model Number: HDCC
• Material: Heavy-Duty Steel Chain with Vinyl Sleeve
• Finish: US32D (Satin Chrome)
• ANSI Specification: LB2231
• Compatibility: Commercial exterior doors (Not for residential storm doors)
• Installation: Surface-mounted to the door and header; for maximum pull-out resistance, thru bolts may be used as an alternative mounting method in hollow metal applications.
  

Why Choose the Don-Jo HDCC?

The Don-Jo HDCC is a proactive solution for door restoration and prevention. By stopping a door before it hits a wall or over-stresses the hinges, you avoid the structural failure of the door prep area. This is a permanent, industrial-strength solution for door edge reinforcement and frame protection, delivering the reliability required for schools, retail centers, and municipal buildings.

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