A hydraulic excavator is a construction machine that can be used with attachments for a wide range of purposes. It can be used with a drill/breaker to break up asphalt or with a scissor-shaped crusher to crush and cut concrete and steel bars. The PC200-8 is a Komatsu hydraulic excavator that was the first in the 20-ton class to pass the most recent emissions restrictions. It incorporates the latest in advanced IT technology, including a remote GPS vehicle management system and a large seven-inch LCD monitor.

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A bulldozer is a construction vehicle that can use its front blade to level ground or its rear ripper to scrape earth and sand and to break up rocks. Categorized as a large bulldozer, the D155AX-6 is used in projects such as civil engineering works and quarrying sites. While a traditional bulldozer blade has a gently curved surface, the Sigma-Blade developed for this model has a profile that resembles the Greek letter sigma when viewed from above. Since it excavates from the central area of the blade, the D155AX-6 is more efficient than other bulldozers.

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Download 3D Papercraft: Bulldozer - part 1
Download 3D Papercraft: Bulldozer - part 2
Download assembly instruction