Case refined the design of four CX compact-excavator models — the CX27B, CX31B, CX36B and CX50B. The machines are Tier-II-compliant and have an overall increase of 19 percent in horsepower, a 15-percent gain in hydraulic flow, and a 14-percent boost in hydraulic horsepower. The open, three-post ROPS provides a 20-percent larger operator platform and 40 percent wider entry area. Operating weights range from 5,666 to 10,383 pounds, and maximum digging depths are from 9 feet 2 inches to 11 feet 9 inches. Estimated list price: $38,000 to $64,000.