Designed for big earthmoving and quarry jobs, Komatsu’s new PC1250-7 excavator bests by 7 percent the hourly production rates of the P1100LC-6 model it replaces. Powered by a 651-horsepower Komatsu diesel engine, the PC1250-7 incorporates the company’s patented open-center, load- and engine-speed-sensing hydraulics with four variable capacity pumps. Two working modes and a heavy lift mode match the machine output to the job at hand and the boom can be electrically set in a smooth mode for fine work or a power mode for muscle jobs. Komatsu added extra durability to the PC1250-7 by reducing the number of welds in the lower X-frame and increasing the plate thickness. Lifecycle costs were also reduced by beefing up the boom and arm and adding heatproof O-rings and face seal joints. The PC1250-7 is offered in five configurations, including general excavating, high flotation, material handler and loading shovel.
New excavator boosts power and efficiency
March 7, 2003