CHCNav TD73 3D Automatic Control System for Dozers

The TD73 3D Automatic Control System is built for dozer operators who need accuracy without slowing down the job. It automates blade positioning using real-time GNSS data, allowing crews to maintain grade without repeated checks or manual adjustments. Whether working on large site development or fine grading applications, the system adapts to different workflows and machine setups while maintaining consistent performance. At the core of the TD73 is a high-performance 3D CAD engine capable of processing large design files and complex terrain models directly on the machine—no file conversion required. Its all-in-one hardware architecture eliminates the need for additional modules, while features like one-click configuration backup, remote desktop support, and a customizable interface simplify daily operation. Designed for extreme environments, the system performs reliably in temperatures ranging from -40°F to 158°F, with IP68/IP69K-rated components built to withstand demanding jobsite conditions.