Excavator designed for big dirt, rock and quarry work

With an operating weight between 140,456 (63 710 kg) and 145,284 pounds (65 900 kg), the PC650LC-11 hydraulic excavator maintains the powerful productivity and transportability of the previous model, while improving fuel efficiency, cab design, and serviceability.

Additionally, the PC650LC-11 is equipped with the latest KOMTRAX technology. Data such as fuel levels, Diesel Exhaust Fluid (DEF) levels, operating hours, location, cautions and maintenance alerts are relayed to the web application for analysis. A new Operator Identification System provides up to 100 ID codes which can be used to track and report on key machine operating information for various applications, operators or jobs. A new Auto Idle Shutdown function helps reduce idle time as well as operating costs.

“The PC650LC-11 is matched perfectly for high-production loading of 30-40 ton trucks, and well suited for deep sewer and water trenching applications,” said Justin Lantin, product marketing manager, Komatsu America. “It is also designed to accommodate flexible job operations that require frequent transportation with reduced time required for disassembly,” Lantin said.

Standard features of the new PC650LC-11 include Tier 4 Final certified engine technology, with a 436 net horsepower (325 kW) Komatsu SAA6D140E-7 engine. The machine is designed with an integrated Selective Catalyst Reduction (SCR) system that uses Diesel Exhaust Fluid (DEF) to meet EPA Tier 4 Final emission regulations for NOx emissions. It also has a Variable Geometry Turbocharger (VGT) and an Exhaust Gas Recirculation (EGR) valve for more precise temperature and air management control, as well as longer component life.

All major components, including the engine, hydraulic pumps, motors, and valves exclusively designed and produced by Komatsu. Integrated design, using a Komatsu open center load sensing hydraulic system, features three working modes to match performance in a wide variety of applications. Additional hydraulic system enhancements reduce hydraulic loss, improving efficiency.

A comfortable, quiet work environment to help operators maximize productivity. The ISO certified cab, specifically designed for hydraulic excavators, is strengthened by a reinforced box structure framework. It is mounted on viscous isolation dampers for low vibration levels.

Handrails on both sides of the upper structure offer easier access. A large, easy-to-reach, 16.4 gallon (62.2 litre) refill capacity DEF tank, in a lockable compartment, provides 2:1 diesel-to-DEF refill ratio.

The exclusive Komatsu EMMS (Equipment Management Monitoring System) continuously monitors all critical systems, enables preventative maintenance, and provides trouble-shooting assistance to minimize diagnosis and repair time.