Overhead Double Wheel Trolley (Pressed Steel)

Primary Uses

• Overhead Slide Gates: This is the primary use. Two trolley assemblies (each with four wheels) are inserted into an overhead I-beam (commonly a 6" beam). The gate frame is then hung from these trolleys using hangers.
• Industrial Entrances: Common in high-security or industrial sites where ground tracks are impractical (e.g., areas with heavy snow, mud, or uneven debris that would jam a ground-level wheel).
• Large Gate Support: Because "double" trolleys feature four rollers (two pairs), they distribute the weight of heavy industrial gate panels more effectively than a single trolley, preventing the gate from tilting or binding.

Key Specifications

• Material: Made of pressed steel that is galvanized to resist rust and corrosion in outdoor environments.
• Wheel Configuration: A "Double Trolley" typically features four wheels (two sets of double wheels) for superior weight distribution and a smoother glide compared to single-unit trolleys.
• Pipe Compatibility: These assemblies are designed to clamp onto standard gate frame pipes, usually ranging from 7$1\ 5/8"$ to 8$2"$ O.D..
• Track Compatibility: Most industrial double trolleys are specifically engineered to fit 6-inch I-beams.