This Roll Base (part number HR4505-1) is used in the HR1000 Armless Tarping Systems made by Pioneer. It is sometimes called the tray, or roller rest.
Tuff-Tarper systems are designed for single axle, cable hoist, and hooklift trucks. These systems can cover open-top containers ranging from 8' to 16'. The roller assembly is mounted on top of a fixed gantry.
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