US-based Trimble has introduced an upgraded GCS900 grade control system which supports milling machines (cold planers) to provide contractors with material savings and an improved paving process.

The system controls the precise cutting depth of the mill to prevent the contractors from overcutting the existing surface, saving them the need for additional asphalt or concrete.

This can also reduce the number of mill passes required, the need for additional grading or remilling work, and wear on the milling machine and blade.

The new configuration for milling machines will also allow contractors to implement total station-based machine control technology across more machines in their fleet.