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Hybrid Reach Stacker
Hybrid Reach Stacker
Konecranes has introduced the world’s first Hybrid Reach Stacker – the SMV 4531 TB5 HLT for container handling, with a lifting capacity of 45 tonnes. It features a hybrid diesel/electric driveline, electrified hydraulic lifting system, and a super capacitor based energy storage. This innovative lift truck will cut fuel consumption and emissions with at least 30% while offering improved performance, acceleration and response to driver’s commands. The new Konecranes hybrid reach stacker will offer customers substantial cost and environmental benefits. Estimated fuel consumption at normal handling of fully loaded containers will be at least 30% lower than for equivalent diesel powered reach stackers. This is achieved by electrifying all flows of energy across the driveline, the hydraulic lifting system and the energy storage system. In a conventional reach stacker, the driveline is a diesel/mechanical system consisting of a diesel engine, torque converter and transmission. The diesel engine produces the energy for propulsion. The flow of energy is mechanical and a quite complex mechanical gearbox is required. The energy generated by braking is converted into heat that is dissipated to the ambient and wasted. In the new Konecranes hybrid reach stacker, the driveline is a serial configured diesel/electric system consisting of a diesel engine, an electrical generator and an electrical traction motor. The diesel engine runs at constant RPM for optimum fuel efficiency and powers the generator. Propulsion is provided by an electric motor that is an integral part of the drive axle. This motor also generates electrical energy when braking, minimizing the need for mechanical braking and saving energy.
