CASE Construction Equipment introduced five new crawler excavators to the construction trade press at a special event at its Tomahawk, Wis., test facility: CX210D, CX250D, CX250D Long Reach (LR), CX300D and 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. Productivity testing during research and development showed that certain models in the D Series could fill more than 9,500 additional trucks per year based on cycle time increases alone.
Each model also offers more standard features than any previous CASE excavator, simplifying the buying process and making them extremely versatile and operator friendly. And all CASE D Series excavators provide peace of mind and lower total cost of ownership through CASE ProCare.
The new models include:
- CX210D: (160 hp; 48,973 lb.; bucket digging force: 31,923 – 34,621 ft.-lb.)
- CX250D: (177 hp; 56,909 lb.; bucket digging force: 36,419 – 39,566 ft.-lb.)
- CX250D LR: (177 hp; 63,523 lb.; bucket digging force: 17,310 ft.-lb.)
- CX300D: (207 hp; 67,271 lb.; bucket digging force: 39,342 – 42,781 ft.-lb.)
- CX350D: (268 hp; 82,483 lb.; bucket digging force: 51,639 – 56,157 ft.-lb.)
CASE D Series excavators meet Tier 4 Final emissions standards through an innovative combination of cooled exhaust gas recirculation (CEGR), selective catalytic reduction (SCR) and diesel oxidation catalyst (DOC) technologies, which helps maximize uptime and performance – all with minimal maintenance. There is no diesel particulate filter (DPF), no DPF regeneration or associated lifetime service costs. These technologies, combined with the CASE Intelligent Hydraulic System, make the D Series the most powerful and efficient CASE excavators ever introduced, according to the company. Faster cycle times are the result of a new, electronically controlled pump, a larger control valve and multiple sensors.
These features combined with the CASE Intelligent Hydraulic System and its four integrated control systems make the best use of the machine’s hydraulic power and momentum, resulting in added strength and fuel efficiency.
The four systems that make up the CASE Intelligent Hydraulic System are: Boom Economy Control (BEC), which reduces RPMs by using gravity during boom down and swing; Auto Economy Control (AEC), which lowers the rpm during idle and automatically shuts down the engine after a preset idle time; Swing Relief Control (SWC), which reduces hydraulic power at the swing start; and Spool Stroke Control (SSC), 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 operator experiences a more productive machine without losing the precision of the machine’s controls.
Three Working Speeds
The D Series also provides the operator with three working modes – Speed Priority, Heavy and Automatic – that 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.
CASE D Series excavators 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 that allow for smooth performance.
Covered Under ProCare
CASE D Series excavators are covered under CASE ProCare – a suite of product assurances that includes a three-year Advanced CASE SiteWatch telematics subscription, a three-year/3,000-hour full-machine factory warranty, and a three-year/3,000-hour planned maintenance contract. ProCare allows customers to invest in new equipment while helping to make costs predictable for the first three years of ownership.