3D machine control becomes standard on new motor graders
Road builders say grade-to-plan blades cut rework so sharply that they no longer order graders without them.
Three years ago, 3D machine control was an add-on that road contractors bought for large jobs. This model year, at least three grader manufacturers are fitting blade-mounted GNSS and control hydraulics as standard across their mid-size ranges.
The system compares the blade's position with a 3D design model and adjusts lift cylinders automatically, letting operators cut to finished grade in fewer passes and without grade stakes. Contractors report cutting surveying and staking costs by more than half on highway work.
The skills question
Grader operator is one of the hardest jobs on a road crew to fill. Machine control does not replace experience on fine finishing work, but it lets newer operators do rough and intermediate grading with confidence while senior operators focus on the final pass.
“It used to take five years to make a grader operator. Now it takes two, and the first year they're already useful.”
- Motor graders
- Machine control
- Road building
