The CASE Intelligent Hydraulic System (CIHS) incorporates a host of energy saving, performance enhancing functions, to boost efficiency and machine output. In combination with powerful, fuel-efficient Tier 4 Interim diesel engines, this leads to fuel savings of up to 17% for the CX235C SR and up to 9% for the CX145C SR. A simple operating mode dial delivers three working modes with speed priority set to provide maximum horsepower and hydraulic output. A Powerboost function provides an 8 second boost for maximum digging performance. Boom Economy Control increases energy efficiency during swing and boom lower operations, while Swing Relief Control further optimises energy use when slewing. Automatic Economy Control cuts energy use when the operating levers are in the neutral position and Spool Stroke Control delivers improved controllability in digging and levelling tasks.
The machines feature automatic engine idling and automatic engine shut down, to further cut unnecessary fuel use when not working. Pump Torque Variable Control provides perfect control of the engine and hydraulic system, further boosting economy. Despite this focus on reduced consumption, the SR excavators boast a 5% improvement in cycle times with a 6% improvement in lifting performance, from the previous models.