Compact helper on the construction site. Compact, versatile, yet still powerful: The Wacker-Neuson ET65 chain excavator is the all-rounder on the construction site. In 1:50 scale, the chain excavator from siku travels on movable rubberised chains. The rotating machine housing, the movable pusher blade, and the movable excavator arm with bucket promise lots of playing fun on the playroom construction site.