Designed for vertical lift applications, the D850-132 (11’) Vertical Lift Drum set provides smooth, controlled cable travel for vertical lift garage doors up to 11 ft high. With a strong 425 lb capacity per drum and support for 3/16” maximum cable, these drums are a reliable choice for commercial and heavy-duty door systems where correct cable management and consistent lift performance matter.

Sold as a pair for complete left/right installation.

 Key Features

• Vertical Lift Drums (11’) — For vertical lift door configurations

• Maximum Door Height: 11 ft

• Capacity: 425 lbs per drum (850 lbs per pair total capacity rating)

• Maximum Cable Size: 3/16”

• Sold in Pairs — Includes left and right drums

 Cable Length Formula (Important)

To calculate required cable length:

Cable Length = (Floor to shaft center + 143”) − door height

 Cross References

• Apco 850-11

• DNS 143-11

• OMI 11 VL

• M216-3350

 Installation Note

Vertical lift drums must match your door height, cable size, and lift configuration. Confirm specifications before ordering. Professional installation is recommended for safe operation and proper door balance.