Upper Frame. Rugged main frame isdesigned for maximum durability andefficient use of materials.• Robot welding for consistent,high-quality welds.• Outer frame utilizes curved siderails, which are die-formed, forexcellent uniformity and strengththroughout the length.• The main channels are box sectionsconnected by a large diameter tubein the boom foot area to improverigidity and strength.Track Roller Frames. The track rollerframe is made of thick steel plate thatis bent into a U-shape and welded to thebottom plate to create a box structure.The box structure design providesincreased rigidity and impact resistance.
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