Vertical Lift Drum 11' high 1" Bore Pair

This pair of vertical lift drums is designed for use in sectional or commercial door systems that require a vertical lift cable path. Cable drums work in conjunction with the door's spring and shaft assembly to wind and unwind the lifting cables, helping the door travel smoothly and evenly along its track.

Sold as a matched pair with a 1" bore and rated for 11' high applications, these drums are intended as replacement parts for compatible door and access-control setups. They cross-reference to the following part numbers: Apco 850-11, DNS 143-11, OMI 11 VL, and M216-3350.

If you are unsure whether these drums match your existing hardware, please verify your shaft size, door height, and cable specifications before ordering.