Weldable Heavy-Duty Hinges for Aluminum Gates with Steel Posts The LiftMaster 3300AS is a heavy-duty adjustable hinge set designed for flat or round steel posts and aluminum gates. Built with a zinc-coated steel yoke and an aluminum hinge body, this weldable hinge provides smooth, maintenance-free gate movement using three sealed roller bearings. With up to 0.5 inches of adjustability and support for gates up to 2,000 lbs. per pair, it’s an ideal solution for commercial or industrial gate systems. Key Features Weldable design: steel yoke welds to steel posts; aluminum body welds to aluminum gates Adjustable yoke provides up to 0.5" of gate alignment flexibility Three sealed roller bearings for maintenance-free performance Compatible with flat or round steel posts and flat aluminum gates Corrosion-resistant construction with zinc-coated steel yoke Supports up to 2,000 lbs. per pair Sold as a pair (2 hinges per box) Technical Specifications Model: 3300AS Materials: Aluminum hinge body, zinc-coated steel yoke Adjustment Range: 0.5" Bearing Type: Sealed roller bearings Post Compatibility: Flat or round steel posts Gate Compatibility: Flat aluminum gates Load Capacity: Up to 2,000 lbs. per pair Packaging: Pair (2 hinges per box) Conclusion The LiftMaster 3300AS hinge set delivers rugged, high-capacity performance with zero maintenance and a weld-ready design. Its aluminum-steel construction and adjustable yoke offer installation flexibility without sacrificing strength or durability—ideal for professional gate setups.
