D Series Crawler Excavators

Case Construction Equipment

June 2, 2015 - Equipment

<p>CX210D<em> Photo courtesy of CASE Construction</em></p>

Case Construction Equipment 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 operational gains, including cycle times up to 12% faster, improved responsiveness and multifunctional control, and up to 14% greater fuel efficiency. Breakout forces are increased by as much as 6%. 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, according to the company.

Each model also offers more standard features than any previous Case excavator.

The new models include:
  • CX210D: (160 hp; 48,973 lbs.; bucket digging force: 31,923 – 34,621 ft.-lbs.) 
  • CX250D: (177 hp; 56,909 lbs.; bucket digging force: 36,419 – 39,566 ft.-lbs.)
  • CX250D LR: (177 hp; 63,523 lbs.; bucket digging force: 17,310 ft.-lbs.)
  • CX300D: (207 hp; 67,271 lbs.; bucket digging force: 39,342 – 42,781 ft.-lbs.) 
  • CX350D: (268 hp; 82,483 lbs.; bucket digging force: 51,639 – 56,157 ft.-lbs.)

Case D Series excavators meet Tier 4 final emissions standards through a combination of cooled exhaust gas recirculation (CEGR), selective catalytic reduction (SCR), and diesel oxidation catalyst (DOC) technologies. There is no diesel particulate filter (DPF), no DPF regeneration, or associated lifetime service costs.

Using improvements to the Spool Stroke Control system, D Series excavators re-use hydraulic fluid whenever possible to automatically increase cycle times and efficiency. This allows the operator to experience a more productive machine without losing the precision of the machine’s controls.

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.

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