Case Construction Equipment has introduced five new crawler excavators: the CX210D, the CX250D, the CX250D Long Reach (LR), the CX300D and the CX350D. These new models are designed to provide significant operational gains, including cycle times up to 12 percent faster, improved responsiveness and multifunctional control, and up to 14 percent greater fuel efficiency. Breakout forces are increased by as much as 6 percent, according to Case.
The new models include:
- CX210D: (160 horsepower; 48,973 pounds; bucket digging force: 31,923 – 34,621 foot pounds)
- CX250D: (177 horsepower; 56,909 pounds; bucket digging force: 36,419 – 39,566 foot pounds)
- CX250D LR: (177 horsepower; 63,523 pounds; bucket digging force: 17,310 foot pounds)
- CX300D: (207 horsepower; 67,271 pounds; bucket digging force: 39,342 – 42,781 foot pounds)
- CX350D: (268 horsepower; 82,483 pounds; bucket digging force: 51,639 – 56,157 foot pounds)
CASE D Series excavators meet Tier 4 Final emissions standards through a combination of cooled exhaust gas recirculation, selective catalytic reduction, and diesel oxidation catalyst technologies. There is no diesel particulate filter (DPF), no DPF regeneration or associated lifetime service costs.
Faster cycle times are the result of a new electronically controlled pump, a larger control valve and multiple sensors.
The four systems that make up the CASE Intelligent Hydraulic System are: Boom Economy Control, which is designed to reduce RPMs by using gravity during boom down and swing; Auto Economy Control, which is designed to lower RPMs during idle and automatically shuts down the engine after a preset idle time; Swing Relief Control, which is designed to reduce hydraulic power at the swing start; and Spool Stroke Control, which adjusts hydraulic pressure during digs.
Using improvements to the Spool Stroke Control system, D Series excavators re-use hydraulic fluid whenever possible to automatically increase cycle times and efficiency.
The D Series also provides the operator with three working modes – Speed Priority, Heavy and Automatic – designed to help the machine conserve energy and exert only as much power as needed to complete the job at hand.
The arm and boom of each new excavator have been built stronger for greater durability and to support the added power of the machine. The undercarriage is built with thicker steel and a new single-slope design that reduces dirt accumulation and eases cleaning, per the OEM.
Standard features include Free Swing for improved craning, laying or lifting of offset loads; oil sample ports for quick sampling of engine and hydraulic oils; and an easy pattern selector for the operator’s preference of ISO or SAE controls. Each D Series excavator features a fully adjustable operator station anchored by a standard heated air-ride seat and joystick controls.
A standard rearview camera feeds a 7-inch widescreen monitor that provides operators with real-time access to important performance parameters, including fuel consumption, operating hours and machine information.
Each machine is available with a new (optional) LED working light package that provides illumination similar to sunlight – and more than three-times brighter than halogen – allowing contractors to work around the clock. The LED package includes six LED lights (two front, two rear and one on each side) and a side-view camera. A premium LED light package features the CASE Maximum View monitor, which combines feeds from three cameras to provide a comprehensive view to the rear and both sides of the machine.
