Roadtec Inc. has unveiled the SX-7 soil stabilizer.

The Cat-powered, 700 hp machine features a 21-in. cut depth, the deepest in the industry.

Used to stabilize the roadbed before the pavement is constructed, the SX-7 can work in many types of materials from soil to old pavement. With its right-hand flush cut, the machine pulverizes or stabilizes all the way to the curb line. The cut is 102-in. wide, perfect for three passes on a 24-ft. wide road.

For relatively shallow cuts, the cutter is positioned in the housing to provide optimal gradation. As cut depth increases the volume is adjusted in the housing to accommodate throughput for deep stabilization. The turning radius of this powerful machine is only 155 in. in the cut and no distance out of the cut.

The machine features four-wheel steer and can be controlled via one or both front-wheels, one or both rear-wheels and can also crab sideways. The control console and operator seat swivel 180 degrees and the machine can be operated from the right or left side. The SX-7 rides on four 26.5-by-25 tires with extra-deep tread and 2-in. sidewalls and has four cutting speeds. Torque to the cutter drum is rated the highest in the industry at more than 500,000 lb.-force in. in first gear. An optional emulsion and water distribution system is offered.