The new Caterpillar 325C LCR Hydraulic Excavator rotates with a minimal amount of counterweight extending past the tracks. Tail-swing radius is only 6 ft. 3 in. (1.90 m). To further reduce the working envelope and boost lift capacity over the front, the boom tower sits farther back in the upper frame than a standard excavator. The design also reduces the front-swing radius when the boom is pulled up.