Komatsu’s new HB365LC-3 hybrid excavator
The cutting-edge 36tonne class model, from one of the world’s leading heavy equipment manufacturers, features improved hybrid and total-vehicle-control systems, generating that impressive double-digit reduction in fuel consumption, while maintaining or exceeding operating performance, compared to same weight class, non-hybrid excavators.
“The new 36-tonne-class HB365LC-3 excavator is built for power and production first, with the considerable fuel savings an added benefit,” said Kurt Moncini, Komatsu America senior product manager. “We applied everything we learned when we debuted the HB215LC-1, the world’s first fully-electric hybrid excavator in 2011. Now, we have the perfect balance of performance and fuel efficiency.”
Komatsu’s innovative, fully-electric hybrid system uses an electric swing motor, which captures swing deceleration energy that would normally go unused, and makes it available to do work. The energy captured during each swing cycle is stored in an ultra capacitor, which supplies energy for the swing system. The diesel engine also has a motor/generator for fast charging the capacitor when required, and to rapidly increase engine RPM from an ultra-low idle, for quick hydraulic response when boom, arm and bucket controls are activated.
Komatsu says its fully-electric hybrid system is a first due to its 100% electric swing system. The hydraulic power normally needed by the swing system is now completely available for boom, arm and bucket power, helping to improve digging cycle time and production.
To meet EPA Tier 4 Final certified requirements, the HB365LC-3 hybrid excavator’s Komatsu SAA6D114E-6, 200kW engine combines a Komatsu Diesel Particulate Filter (KDPF) and Selective Catalyst Reduction (SCR) system with Diesel Exhaust Fluid (DEF) to meet NOx emission after-treatment requirements.
The HB365LC-3, whether rented, leased or purchased, is covered by the Komatsu CARE programme for the first three years or 2,000 hours, whichever comes first. Komatsu CARE includes scheduled factory maintenance, a 50-point inspection at each service and up to two complimentary Komatsu DPF exchanges and up to two DEF tank flushes in the first five years.
