Chain-Operated Latch for Tall Barn Doors: Operate a 20 ft Door Lock from the Ground
Chain-Operated Barn Door Latch: No More Climbing to Lock the Door
On tall barn and industrial doors of 12, 15 or 20 feet, the upper latch is hard to reach. Our client wanted a chain-operated solution so the top latch could be worked from the ground.
CADLETE Designs developed a unique chain latch mechanism. The latch mounts at the top of the door and connects to a chain. Pulling the chain from the ground releases the latch, and the mechanism engages automatically when the door closes.
We designed the complete product and built functional prototypes for the client to test. After successful validation, we developed zinc die-casting tooling and moved the die-cast parts into production. Stainless steel parts are made by milling and CNC machining, and components are buffed, polished and finished with premium PVD coating.
We also source external parts such as the chain, then assemble, package and supply everything ready to sell. The client simply places an order, and CADLETE delivers to their doorstep.
From Design Development to Final Product
Every stage of this project, in the order it was built. Select a stage to see it full size.
Project Overview
Design Development
3D CAD
Final Product
Product Showcase
Have a similar project in mind?
Free 30-minute consultation. A real engineer reads your brief, not a bot.
Related projects
Vintage Cane Bolt
Product Design, Mechanism Design, CNC and VMC Prototyping, Zinc Die Casting Tooling
Telescopic Hanger
Product Design, Mechanism Design, 3D CAD Development, Functional Prototyping
Hoofgrids
Industrial Design, Product Design, Snap-Fit Mechanism Design, 3D CAD Development
Magnetic Trimmer Guards
Product Design, 3D CAD Development, 3D Printed and SLM Prototypes, Design for Injection Molding
Rotating Metal Keychain
Product Design, Mechanism Design, 3D CAD Development, Functional Prototyping
Perfume Belt Buckle
Product Design, Mechanism Design, 3D CAD Development, CNC Machining
Custom Wheel Spacers
Automotive Accessory Development, Mechanical Design, CNC Machining, Press Fitting
Dutch Door Grille System
Mechanical Design, CNC and VMC Prototyping, Aluminum Die Casting Tooling, Production Setup
