Kobelco 17SR Acera zero tail swing mini-excavator has an operating weight of 3,638 pounds. Powered by a 15.2-horsepower diesel, the machine has a bucket breakout force of 2,900 pounds — 11 percent more than previously. Maximum dig depth is 7.1 feet. Kobelco’s Smart Hydraulic System has three pumps that ensure maximum power for simultaneous lifting, swinging and travel operations.