ForConstructionPros.com

Grade control systems are migrating to smaller machines as end users discover the economic advantages. Tight spaces, landscaping and smaller jobs often favor the use of smaller equipment and attachments vs. larger dedicated units. Consequently, suppliers of grade control technology are offering a range of solutions that vary in sophistication, capability and price.

For instance, Trimble offers a portfolio of solutions suited for box blades and other finishing/landscaping attachments. "The solutions offered range from simple indicator light systems, plumb and tilt indication, to fully automatic blade control," says Tim Baker, segment manager - site preparation.

Likewise, Leica Geosystems claims it has an installed literally hundreds of systems on box blades. These are mainly laser-based systems. "Laser-based systems are extremely simple and easy to use," says Rich Calvird, program manager for machine control. "All the operator has to do is put the system in 'automatic' mode. Laser beacon references are easy to set up and are common on today's construction and landscaping sites, so users are ready to go in minutes."

These 2D systems are well proven. "With full automatic systems available for less than $10,000, the savings in fuel, machine time and material handling usually pay for the system within a few months, and keep on generating savings for increased profit for years afterward," says Calvird.

The advent of 3D solutions promises even more capability, but at a higher price. "The 3D systems offer greater flexibility to handle complex land contours, larger sites and multiple machines working in the same general area," says Calvird. "If the job does not have the complexity or size demands needing full 3D capability, a laser system will be more cost effective."