Depending on point-of-view, the Komatsu PC650LC-8 hydraulic excavator is a large mid-size machine or a smallish large machine. Regardless of where it fits in a fleet, the approximately 143,000-lb. (64,863 kg), 429-hp (320 kW) unit is a productive, reliable piece of equipment that has improved upon the PC600LC-8, according to the manufacturer.

The most significant improvements of the PC650LC-8 center around an improved operator environment that provides better operator comfort and control. The new, highly rigid cab includes a heated, high-back, air-suspension seat; a 7 in. LCD color monitor panel; and a standard rearview camera that gives the operator the visibility and control to maximize productivity.

Additionally, an arm quick return circuit on the PC650LC-8 returns a portion of oil flow to the hydraulic tank at arm dumping to reduce hydraulic pressure loss. Combined with a new arm regeneration valve, the work equipment speed has increased, enabling faster truck loading.

Beyond these direct comfort and performance improvements, the PC650LC-8 has other features that owners and operators will appreciate. For example, the boom and arm have been strengthened; a fuel pre-filter with water separator is standard equipment; and the Komatsu hydraulic system is protected with an extensive filtration system, including high-pressure in-line filters for each main pump. These features improve machine reliability and reduce the likelihood that the unit will break down on the job, resulting in costly downtime, according to the manufacturer.

The PC650LC-8 also is a class leader in terms of reducing fuel consumption and harmful emissions. It offers several operational modes that allow the operator to match engine output to the work at hand, thereby lowering fuel consumption.

As with all Komatsu excavators, the PC650LC-8 comes with low-noise, comfortable cab; easy access to maintenance and service functions; and the KOMTRAX machine monitoring and management system that allows the distributor to help keep an eye on the machine to assure that it’s running properly and to remind the operator about service intervals.

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