B7 Sigma mini excavator

COMPACTNESS Yanmar’s unique Σ boom : a breakthrough in the concept of the ultra tight turning machine. B7-5B The B7Σ is for users who want to dig deeper and more efficiently. It is ideal for jobs in restricted urban sites and densely built-up areas. Some suggested usage areas include water, sewage and gas piping work and laying communications cables. Advantages of the Σ boom > When working at boom offset in narrow trenches, the second part of the boom does not strike the left- hand shoring plate, as tends to occur with traditional “ultraswing” excavators, so providing: • Increased digging depth. • Reduced layering at the bottom of the trench. > Efficient excavation, even below the dividers between the shoring plates of a trench. > Increased productivity when loading trucks: the bucket can reach the back of the dump vessel, so optimising the filling process and reducing trucks rotation. > Efficient when working at height (demolition). Ultra-short swing radius > Complete rotation (upper frame and equipment) within the crawler width. > Perfectly suited to excavating in urban environments: pipe-laying, road works... The bucket gets right under the jack with the forward articulation. Neat earth levelling on the truck The Σ boom reaches to the corners of the truck for neat levelling, making unloading easier, too. www.baygar.com