ER
boom system
The ER boom system is bringing revolutionary improvements to tree
harvesting not seen since the invention of the high-speed disc saw 20 years
ago.
Important advantages of the ER boom system include improved fuel
efficiency, increased production and reduced operator fatigue. Also,
training for new operators is a far less daunting task.
Conventional boom systems are fundamentally inefficient at felling
because they must mix two arcing motion functions to get the desired
reaching motion.
Conversely, the patent pending ER boom system allows the machine
operator to extend and retract the boom on a horizontal plane smoothly and
quickly using a single joystick. The stick boom or "reach"
joystick controls both the main and stick booms simultaneously, resulting in
the attachment moving either away from or toward the operator. The main boom
and tilt functions operate in the traditional manner to adjust the height
and angle of the attachment.
Key to this technology is reduced energy consumption. The ER system
transfers energy back and forth between the main and the stick boom
functions, reducing the total energy needed to move the boom system. This
translates to reduced demands for power, pump flow and system cooling.
Operators who have spent time on ER machines comment on the speed, ease
of operation and smoothness of the boom as well as the extra horsepower
available for other functions and faster saw recovery.
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