Caterpillar brings the 345D L crawler excavator with a 380-horsepower Cat C13 engine that increases the machine’s horsepower by 10 percent, yet Cat claims the new machine uses about the same amount of fuel in tough digging and other hard duty as the C model it replaces. The main implement hydraulic pump has been redesigned and delivers 2 percent more flow. An electric regeneration circuit has been added to boost hydraulic efficiency and reliability. The 100,000-pound excavator offers undercarriage options that keep its overall width down to very transportable dimensions, yet it can be configured for heavy-duty production work in quarries as well. A heavy-duty boom is now standard equipment.
September 28, 2010