As a model featuring strong power, excellent energy saving, outstanding environmental protection and strong durability, etc., and especially suitable for earthwork engineering, mines, tunnels and other harsh construction environm ent, the XE335C hydraulic excavator has adopted advanced design and manufacturing methods and the latest standards in accordance with the product design concept of “high efficiency, excellent energy saving and outstanding environmental protection”, and the ultimate target of “powerful functions, wide scope of applications and creation of more value for customers”. Compared with the previous generation, the complete machine has had its oil consumption reduced by 12% and its efficiency increased by 8%. The key components internationally sourced can offer outstanding product performance as well as an advanced and reliable control system; its standard lengthened and widened heavy-duty chassis has massively adopted the structural members researched and manufactured based on the special technology and imported high-strength wear- resisting steel, so that the product strength and service life could have been greatly improved to easily deal with all kinds of bad working conditions.