The Chief CMS012018 is an adjustable extension column that sets the drop between a ceiling plate or adapter and a Chief projector or display mount anywhere from 12 to 18 inches. Two telescoping tubes, a 2.3-inch outer column over a smaller inner column, let the installer fine-tune height on site instead of ordering an exact length. Length is locked with a screw through either of two adjustment holes for 1-inch steps or through a locking slot for 2-inch steps, then secured with set screws; both standard and security set screws are supplied. Each end uses standard 1-1/2 inch NPT threads, which must engage at least four full threads into the plate or adapter. Chief rates CMS columns to 500 lbs combined load, limited by the lowest-rated component and the supporting structure. A cable access opening on the inner column can be rotated so wiring exits below the ceiling plate. The black finish blends with black Chief mounts and open or dark ceilings.
Key Features
- Adjustable length: 12" to 18"
- 1-1/2" NPT threaded ends
- 500 lb (226.8 kg) rated capacity
- Diameter: 2.3 in (5.8 cm) (outer column)
- Rotatable cable access opening
- Black finish
Ideal Applications
Projector and display ceiling installs in classrooms, conference rooms, auditoriums, retail and worship spaces where the mount must hang at an adjustable height below the structure.
Compatibility
Connects any Chief ceiling plate or adapter with a 1-1/2" NPT fitting to Chief projector and flat panel ceiling mounts. Optional trim: CMA640 series ring (1.9" ID) for the inner tube or CMA643 ring (2.44" ID) for the outer tube. Ceiling plate, mount and rings sold separately.