Built for heavier high-lift applications, the 5250-54 (54”) Hi-Lift Drum set is designed to deliver smooth cable travel and dependable lifting performance on doors using up to 54 inches of hi-lift. Featuring a 1” bore and a strong 500 lb capacity per drum, these drums are ideal for commercial and heavy-duty residential high-lift setups. Supports up to 3/16” cable and is sold as a left/right pair for complete installation.

 Key Features

• Hi-Lift Drums (54”) — For high-lift door configurations

• Maximum Hi-Lift: 54”

• Bore Size: 1”

• Capacity: 500 lbs per drum (1,000 lbs per pair total capacity rating)

• Maximum Cable Size: 3/16”

• Sold as a Pair — Includes left and right drums

 Cable Length Formula (Important)

To calculate required cable length:

Cable Length = (Floor to shaft center + 66”) − (amount of hi-lift)

 Cross References

• Apco 5250-54

• DNS 54

• OMI 54 HL

• M134-1375

 Installation Note

Hi-lift drums must match your door’s lift amount, shaft size (bore), and cable size. Confirm specs before ordering. Professional installation is recommended for safe operation and proper door balance.