Grade Control for Excavators

Maximum efficiency for your excavator. Everyone talks about it, but only Trimble delivers.


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  • Applications

    GCS900 3D

    The 3D system is well suited for mass excavation applications such as:

    • Land reclamation
    • Dam and reservoir construction
    • New infrastructure projects
    • Landfills and waste deposits

    GCS900 2D

    The 2D system can improve your excavator operations on projects such as:

    • Residential and commercial sites
    • Road construction
    • Trenches
    • Ditches
    • Finished slope work
    • Dredging and waterways


    Designed for small to mid-sized excavators, the Trimble GCSFlex Grade Control System can be used for a broad range of work including:

    • Trenching for underground utilities and pipelines
    • Digging footers and basements
    • Site prep on residential, commercial and industrial jobsites
    • Building roads
    • Mass excavation
  • Configurations

    GCS900 3D

    Single GNSS    

    Measures the position and slope of the blade and compares that to design data for rough grading and mass excavation on complex design surfaces

    Dual GNSS     

    Measures the exact position, cross slope and heading of the blade for rough grading and mass excavation on steep slopes and complex design surfaces

    Universal Total Stations

    Total station based system for extreme accuracy for lift and layer control, material monitoring, or where GNSS is not the ideal solution because of overhead obstructions

    GCS900 2D

    Depth, Slope and Elevation Control

    Highly flexible system for excavation, trenching, grading and profile work


    GPS Guidance with Wi-Fi Base 

    GPS guidance provides position and heading using an MS972 GNSS Smart Antenna and SNM940 Connected Site Gateway. GPS corrections are delivered via Wi-Fi from a SPS985 base station.

    GPS Guidance with Remote Corrections 

    GPS guidance provides position and heading using an MS972 GNSS Smart Antenna and satellite delivered GPS corrections. The SNM940 Connected Site® Gateway receives GPS corrections via cellular connection with a Virtual Reference Station (VRS) network or Trimble Internet Base Station Service (IBSS).

    Laser Reference with Heading     

    With the Laser Reference and HS410 Heading Sensor configuration, the excavator can be rotated without the need to re-enter the desired depth and slope to maintain consistent accuracy.

    Laser Reference   

    A rotating grade laser such as the Spectra Precision GL700 series from Trimble provides a reference plane across the jobsite.

    Bench Reference     

    Simply enter the desired depth and slope information into the in-cab control box. The system will provide guidance to a depth or slope based on distance from a known point or "bench" on the ground.