models for Cat 302.7 through 310 Next Generation Mini Excavators. The new TRS4 and TRS8 S45 plus updated TRS6 models allow attached work tools to rotate 360 degrees and tilt 40 degrees side-to-side.
Cat added the 301.7D, 302.2D and 302.4D to its D Series lineup of mini excavators in November 2012. Float function has been added to the dozer, allowing the blade to follow ground contours.