This is the result of a growing need to enhance the performance of lightweight thinning harvesters and excavator-based harvesters without increasing engine power.
Kesla’s new powerB pressure accumulator system provides an effective response to this challenge by delivering significant additional power during critical work phases. The solution improves harvester performance, productivity, and fuel efficiency without the need to increase engine power.
Light thinning harvesters and excavator-based harvesters often face challenges such as low feed speed and limited sawing power, which reduce work efficiency and make handling difficult trees more demanding. Kesla powerB addresses these challenges by efficiently utilizing load fluctuations in the hydraulic system.
In harvester operations, the power demand of the hydraulic system varies continuously, and rapid changes also cause pressure spikes that are detrimental to the system. The PowerB pressure accumulator system is connected to the harvester’s pressure line, where it stores energy. At the same time, the system smooths pressure variations and filters pressure spikes, improving the durability and reliability of the hydraulic system and hoses. The stored energy is utilized at moments when the harvesting head’s energy demand is at its highest, such as during sawing and feeding.
The core of the PowerB system is its valve and control logic, which manages energy charging and utilizing cycles with millisecond-level precision at exactly the right moments. The control system also ensures operational safety by discharging the accumulator energy in a controlled manner when the harvesting head is not active, ensuring safe machine operation and maintenance.
Kesla powerB integrates seamlessly into the extensive Kesla xTimber product family for excavator harvesters. The system is also ideally suited for lightweight thinning harvesters with limited engine power. The Kesla powerB system is available for all Kesla harvester heads controlled by Kesla proLOG, xLogger, or Dasa control systems. Source