Garage Door Torsion Spring Cable Drum Set – D525-216 (Left & Right Hand Pair)

For Vertical-Lift and Heavy Commercial Applications

Built for serious lifting power, the D525-216 torsion spring cable drums are the go-to solution for vertical-lift and heavy-duty commercial garage doors. Designed to handle extremely tall and heavy doors, this drum set offers maximum strength, consistent cable tracking, and long-term performance in demanding environments.

Key Features:

• Vertical-Lift Configuration: Ideal for doors that lift straight up without curving into horizontal tracks – common in commercial and industrial settings.

• Massive Weight Capacity – 525 lbs per Drum: Supports up to 1,050 lbs combined, perfect for oversized, high-weight garage doors.

• Precision Cast Aluminum Construction: Durable, corrosion-resistant material built for high-cycle usage and harsh conditions.

• Oversized Cable Wrap Area: Provides excellent cable control on tall doors with long vertical travel.

• 1" Bore with Dual Set Screws: Ensures secure fitment on standard torsion shafts for safe, stable operation.

• Color-Coded Installation:

  • Red – Left-hand drum (installs on the left side from inside)

  • Black – Right-hand drum (installs on the right side)

Best Suited For:

• Vertical-lift garage doors

• Heavy commercial and industrial doors

• High-clearance or full-vertical lift configurations

• Applications requiring superior cable control and strength

Includes:

• (1) Left-hand D525-216 Drum

• (1) Right-hand D525-216 Drum