Spin Ace Series of minimum swing radius excavators has operating weights from 16,900 pounds to 51,376 pounds. With less tailswing, these excavators can work in tighter areas than comparable units with greater tail-swing, the company says. Features include a wide, low-noise cab design, Isuzu engines and undercarriages with heavy-duty excavator style components. A "One-Touch Decelerator" lets the operator idle down at the push of a button. The operator also can select a standard power mode for digging and an economy mode to ensure the best fuel efficiency.