Chief CMA640B — Decorative ceiling finishing ring for projector columns
The Chief CMA640B is a decorative finishing ring designed to provide a clean, professional appearance at suspended ceiling penetrations where Chief projector extension columns are installed. Compatible with fixed CMS extension columns and fixed CPA columns, it covers the gap between the column and the ceiling tile for a polished result. The ring features a hinged construction that allows it to open and snap around an existing column without dismantling the mount — making it equally suitable for new installations and retrofits. Available in black (CMA640B), white, and silver finishes to match the most common ceiling tile colours, ensuring a discreet, visually consistent ceiling integration in boardrooms, classrooms, and any presentation space.
Hinged Design for Retrofit Ease
The CMA640B uses a hinged opening that allows the ring to clamp around an already-installed extension column without requiring any disassembly of the projector mount above. In practice, this means an installer can add or replace the finishing ring at any point in the project lifecycle — even after the projector is live — without disturbing cabling or alignment. For end users in occupied spaces such as classrooms or boardrooms, this translates to minimal disruption: no ceiling work, no downtime, and a result that looks purpose-built from the start.
Clean Ceiling Penetration for Any Finish
Suspended ceiling tiles rarely leave a perfectly sized cut-out around a projector column, and an exposed gap looks unfinished and can draw complaints in client-facing environments. The CMA640B resolves this by covering the raw edge of the ceiling tile hole entirely, leaving a smooth circular trim that frames the column neatly. With black, white, and silver variants in the CMA640 series, installers can select the finish that matches the ceiling panel — a detail that matters in premium boardrooms, high-end hospitality settings, and educational facilities where the overall aesthetic is part of the brief.
