The Case CX27B, CX31B (pictured), CX36B and CX50B have been upgraded to Tier-4 certification, resulting in more efficient power and faster cycle times. Featuring Tier-4-certified Yanmar engines, the Case CX B Series ranges from 5,566 to 10,261 pounds, and delivers from 21.3 to 39.8 net hp. These models provide bucket-digging forces up to 7,936 pounds and maximum dig depths from 8 feet, 4 inches to 11 feet, 9 inches. All models are equipped with a hydraulically controlled backfill blade for added stability and light dozing work.