Duro Dyne CL90: Strongest One-Piece Duct Lock

Article content provided by Duro Dyne.

When it comes to suspending rectangular ductwork, the right hardware can make a significant difference in both safety and efficiency. The Duro Dyne CL90 is a one-piece square duct lock that eliminates the need for additional brackets while offering the highest working load capacity of any comparable product on the market.

Designed to work seamlessly with Dyna-Tite cable systems, it ensures a secure and streamlined installation process. The CL90’s design prioritizes ease of use without sacrificing performance. It features a side-release pin that allows for simple cable adjustments during installation, and its integrated pass-through hole helps manage excess wire neatly. Available for use with WC2 and WC3 wire rope, the lock supports a wide range of loads—from 10 to 150 pounds—making it a versatile solution for various duct sizes and configurations.

Durability is at the heart of the CL90’s construction. It has a zinc housing, sintered steel wedge, and tempered stainless steel springs to maintain locking strength over time. Each unit is pre-assembled and factory-tested to ensure it meets or exceeds SMACNA standards, incorporating a built-in 4:1 safety factor for added peace of mind.

Ideal for contractors seeking a secure, efficient alternative to traditional hanging methods, the Duro Dyne CL90 delivers confidence in every connection. After all, Duro Dyne has been in the HVAC suspension business for 25 years. It’s a smart choice for professionals who demand strength, speed, and reliability in every installation.

Please view the entire line of Duro Dyne products here.

Have a question for Duro Dyne? Contact Duro Dyne here.

Flexible duct connector & vane rail, insulation fasteners & equip., adhesives & duct sealers, damper hardware, sheet metal screws, zone control systems & IAQ products, hand tools, Dyna-Tite cable lock hanging system, Dyn-O-Mate duct connection flange sys.