LiftMaster DDO8900W Light-Duty JackShaft Dock Door Operator

The LiftMaster DDO8900W is a light-duty, side-mounted jackshaft operator designed for full-vertical and high-lift sectional dock doors in low-cycle commercial environments. Its internal chain-and-sprocket drive, built-in WiFi, and Security+ 2.0 signal technology support reliable operation and professional-grade control in busy dock conditions. Supplied with key accessories, this operator streamlines installation, simplifies programming, and provides consistent performance for warehouses, distribution centers, and other facilities with scheduled daily deliveries.

Specifications

• Side-mounted jackshaft design for full-vertical or high-lift sectional doors
• Security+ 2.0 and Frequency Agile system (310, 315, 390 MHz)
• Integrated WiFi for myQ Business Facility compatibility
• Internal 63:1 chain-and-sprocket gear reduction
• Rated for up to 10 cycles per hour and 25 total cycles per day
• Maximum door size: 14' height, 16' width, 180 sq ft, 300 lb
• Minimum 3" overhead clearance above torsion bar
• 12 VDC motor with automatic thermal protection
• 120 VAC, 60 Hz, 2.0 A current rating; 6' power cord with 3-prong plug
• Operator dimensions: 21.5" H × 7.5" W × 7.9" D
• Control station dimensions: 6.25" H × 3.2" W × 2.2" D
• Includes bicycle-style sash chain and required mounting hardware
• Not compatible with reverse-wound drums
• Operating range approximately 200'
• Installer-friendly programming for limits, sensors, and monitoring

Included Components

• Commercial door operator
• Interface module
• Single cable tension monitor
• Upright 3-button control station
• Safety reversing sensors