Chief CMS380 — Truss clamp for CMS column projection systems
The Chief CMS380 Truss Clamp is a purpose-built adapter that bridges the Chief CMS column system with standard 2-inch (5,08 cm) tube trusses, making it an essential component for temporary projection and flat panel installations in rental, staging, and live event environments. Designed for AV integrators and staging professionals who need fast, reliable rigging, it accepts any 1.5" NPT threaded CMS extension column and is fully compatible with the entire Chief CMS accessory ecosystem — including all projector and flat panel mounts. UL listed and manufactured in the United States, the CMS380 combines a generous 113,4 kg safe working load with installation features that allow a single technician to set up and break down quickly.
One-Person Trigger-Style Clamp
The CMS380 uses a trigger-style clamping mechanism that allows a single technician to attach the unit to a 2 cm tube truss and lock it securely without needing a second person to hold the component in place. In rental and staging contexts, where labour costs and turnaround times are tightly managed, this directly reduces set-up and strike times per rig point. The operator can work their way along a truss run independently, cutting the overall rigging time for multi-point suspension layouts significantly.
113,4 kg Safe Working Load
With a rated safe working load of 113,4 kg, the CMS380 can support the full weight of a large-format projector or a heavy flat panel together with a CMS column and mount assembly — providing headroom for realistic real-world loads rather than just bare minimum ratings. This makes it suitable for professional-grade AV equipment used in corporate events, houses of worship, and touring productions without the need to double-rig or add supplementary safety hardware beyond standard practice.
Integrated Cable Port for Clean Routing
A dedicated cable port built into the clamp body allows power and signal cables to exit cleanly from the column assembly directly through the truss attachment point. In live event and staging installations where cable management is critical for both aesthetics and safety — particularly where flying rigs are inspected by venue safety officers — this removes the need for external cable ties or conduit workarounds at the truss interface, resulting in a tidier, faster and more professional-looking installation.
Universal CMS Ecosystem Compatibility
The CMS380 is compatible with every Chief CMS extension column, ceiling plate, and mount accessory in the Chief product line. For integrators already working within the Chief ecosystem, this means the truss clamp drops directly into existing column-based rigging configurations without requiring any intermediate adapters or custom fabrication. It also future-proofs the rig: as display or projector models change over a venue's lifetime, the truss attachment point remains constant while only the mount head needs to be swapped.
