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Komatsu’s Hybrid HB215LC-1 Hydraulic Excavator
November 16, 2011

Komatsu HB215LCKomatsu’s Hybrid HB215LC-1 hydraulic excavator  is powered by the Komatsu Hybrid System, which includes Komatsu’s recently developed electric swing motor, power generator motor, capacitor and a 139 HP (104 kW) diesel engine. Komatsu developed its revolutionary hybrid system to work on the principle of swing energy regeneration and energy storage using the Komatsu Ultra Capacitor system. Komatsu’s Ultra Capacitors provide fast energy storage and instantaneous power transmission. The kinetic energy generated during the swing-braking phase is converted to electricity, which is sent through an inverter and then captured by the Ultra Capacitor. This captured energy is then discharged very quickly for upper structure rotation and to assist the engine as commanded by the hybrid controller when accelerating under workload conditions. The HB215LC-1 has an operating weight of 48,175 lbs. and a bucket capacity of 1.57 yd³.