D525-216 Standard-Lift Garage Door Cable Drums – Pair
Heavy-duty left- and right-hand cable drums designed for large commercial and industrial sectional garage doors with standard-lift track.
The D525-216 cable drum pair is designed to wind and guide the lifting cables on compatible standard-lift garage door systems. Each drum mounts to the torsion shaft and works with the matching drum on the opposite side to help lift the door evenly and maintain proper cable alignment.
With a capacity of up to 750 lbs. per drum and support for doors up to approximately 19'6" high, these drums are well suited for large commercial sectional doors, warehouses, service facilities, agricultural buildings, and industrial overhead door applications.
Heavy-Duty Capacity
Rated for up to 750 lbs. per drum when properly selected and installed.
Large-Door Compatibility
Designed for compatible standard-lift sectional doors up to approximately 19'6" high.
Complete Matched Pair
Includes one left-hand drum and one right-hand drum for both sides of the door.
Key Features
- D525-216 standard-lift cable drum design
- For compatible commercial and industrial sectional garage doors
- Approximately 5-1/4" drum diameter
- 1" bore for compatible solid torsion shafts
- 1/4" keyway for keyed-shaft installations
- Accepts lifting cable up to 3/16" in diameter
- Rated for up to 750 lbs. per drum
- Set screws installed
- Includes left-hand and right-hand drums
Product Specifications
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Drum Model: D525-216
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Lift Type: Standard lift
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Drum Diameter: Approximately 5-1/4"
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Approximate Drum Width: 3-3/8"
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Bore Size: 1"
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Keyway: 1/4"
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Maximum Cable Diameter: 3/16"
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Maximum Capacity: 750 lbs. per drum
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Maximum Door Height: Up to approximately 19'6"
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Construction: Cast aluminum
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Set Screws: Installed
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Quantity: One left-hand and one right-hand drum
Important Lift-Type Notice: D525-216 drums are designed for standard-lift garage doors. They should not be substituted for high-lift or vertical-lift drums, which use different cable-groove profiles and lifting geometry.
Compatibility Notice
Verify the door height, total door weight, lift type, torsion-shaft diameter, keyway, cable diameter, cable length, track configuration, and required drum capacity before ordering. Both drums must be matched and installed with the cables properly seated in the grooves.
Safety Warning: Cable drums, torsion springs, shafts, and lifting cables operate under extreme tension. Incorrect drum selection or installation can cause cable failure, uncontrolled door movement, serious injury, or property damage. Installation should be completed by a qualified commercial garage door technician.
