Trimble Navigation Ltd.

Trimble Earthmover Grade Control

Trimble says its GCS900 Grade Control System allows lesser-skilled operators to work faster, more consistently, and with less rework. Improved productivity reduces personnel and machine costs, and allows precise material use. Trimble’s Connected Machine functionality is now standard with GCS900 systems, allowing design updates and progress reports to flow wirelessly between the field and the office in real-time.

GCS900 Grade Control – Three-dimensional control

Trimble markets three versions of its GCS900 controller for dozers:

  1. Bulk Earthworks is an indicate-only system that depends on a single GNSS signal for rough grading and mass excavation. It can be upgraded to measures the exact position, cross slope and heading of the blade with signals from two GNSS satellites for working steep slopes and complex design surfaces;
  2. Grading offers the same accuracy choices of positioning with one or two GNSS signals, but adds the option for fully automatic blade control;
  3. Finish Grading also finds the blade on a digital map of the work site with single or dual GNSS signals, but offers the option to achieve millimeter accuracy by either augmenting satellite positioning with a laser reference or replacing it with positioning from a total station.

GCS900 Grade Control – Two-dimensional control

 A single laser and receiver measure the lift and tilt of the blade. Add a second laser receiver to the blade or a slope sensor to measure blade slope. A Trimble control box in the cab provides elevation and slope guidance, so operators get to grade more accurately and quickly. Trimble 2D Grade Control can easily be upgraded to a 3D system.

Laser Controls for Compact Equipment – Two-dimensional control

Brochure: Trimble GCS900 Grade Control System

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