Cleaner, More Efficient C Series Excavators For Case
Case Construction Equipment has taken the wraps off the first four models in its C Series crawler excavator range. The CX250C, CX300C, CX350C and CX370C feature Tier 4 interim compliant engines that offer up to a 10% fuel efficiency improvement over the B Series, already one of the most frugal excavators on the market. Through the use of the Case Intelligent Hydraulic System, the four excavators offer improved digging performance with lower emissions and reduced consumption. Five new energy saving systems contribute to a substantial cut in operating costs for customers, with an increase in productivity.
Efficient Engine Technology The Tier 4 interim compliant engines in the four machines use cooled exhaust gas recirculation (CEGR) to provide a cleaner burn. The CX250C comes with 177hp (132kW), the CX300C provides 207hp (154kW) and both the CX350C and CX370C use an engine rated at 266hp (198kW). Customers with B Series models will have already seen up to a 20% fuel improvement over older models and some competitors. With the C Series excavators they can expect a further 10% efficiency improvement. As rising fuel costs are now by far the biggest expense when running machines of this size, savings can be substantial, boosting the return on investment for end users. The Case Intelligent Hydraulic System incorporates five new energy saving systems. Boom Energy Save lowers engine revs during boom lower and swing operations, while the Auto Energy Save system cuts engine revs when the joystick control levers are inactive. Swing Relief Control manages the hydraulic power distribution at the start of a slewing operation to provide the most efficient use of hydraulic flow and pressure. Spool Stroke Control automatically adjusts the hydraulic pressure during digging operations. Lastly, Idle Shutdown turns the engine off after a preset time has elapsed.
Increased Productivity The new C Series models boast up to 5% faster cycle times than their B Series predecessors, though with smoother and easier controls. Lift capacity is increased by around 6%, depending on model, and each machine has a slightly higher operating weight to cope with increased digging and lifting capacities. The CX250C now tips the scales at 24,800kg, the CX300C at 29,500 and the two top machines at 34,700kg and 36,800kg respectively. A full range of buckets and attachments is available for the C Series models. The revised line of excavation buckets are all available with the Case SmartFit bucket tooth system, allowing rapid change of bucket teeth without the need to hammer out pins.
First Class Operator Environment The C Series cab is 5% larger than the B Series, with a smaller top beam and no overlap in the front windows contributing to improved all round visibility. Four mirrors provide an excellent view to both sides of the machine, while a rear view camera is standard and a side view camera available as an option. The camera feed is displayed on a new 7” LED monitor inside the cab, with a simple switch between rear and side views. Internal noise levels have been reduced to an almost automotive 69.9dB(A), making the C Series cab as quiet and relaxing to operate as a luxury car. Air conditioning performance has been improved, with 8% increased output to ensure that the operator is comfortable throughout the working day. A standard air suspension seat completes the picture for the operator, along with joysticks with four adjustable positions and travel pedals that require 30% less effort. The new in-cab monitor offers improved visibility with the possibility for the operator to make a number of machine function adjustments from the seat. This includes up to 10 memory recall settings for auxiliary hydraulic flow and pressure, to make changing between attachments a simple and rapid task. The monitor also provides an on-board diagnostic service for technicians, reducing downtime and boosting productivity.
Case Commitment To Customer Profitability Over the next two years Case will renew up to 90% of its model range, bringing lower exhaust emissions, reduced fuel consumption and increased operating efficiency to every industry sector. With the C Series excavator line, Case is clearly demonstrating the direction that these innovative technologies will follow. Additional models will join the C Series line-up through this year and into 2012, further extending the appeal of these hard working, highly efficient excavators.
