i-33 Grading System


I-33 turns bulk earth movers into site fundamentals.

Product Info

It all starts
at the first layer

Bulk earth movers like dozers, scrapers and even motor graders are being used to get started. Move materials and create the path for the next set of machines. What about injecting these with innovation to smoothen the path and start with correct slopes and elevations at the first layer?


  • Get slopes and elevations right from the beginning
  • Cut grade fast and accurate the first time
  • Bright, easy-to-use color touch screen
  • View machine position on siteplan in real-time
  • Upgradeable systems

Get it right — from the beginning

Bulk earthmovers are on site from the beginning. Topcon I-33 systems realize the accuracy, simplicity and flexibility of GPS grade indicate on your bulk earthmoving jobs. They are step-in configurations into 3D. I-33 are indicate only, but fully upgradeable to automatic.

The system allows continuous cuts on multiple elevations, slopes and complex designs. The operator simply works from 3D models of the job loaded into the control box, or they can create slope and elevation designs in real time.

I-33’s flexible configuration offers multiple solutions for elevation only or elevation and slope work. Minimal mounting and components means it’s easy to prepare all machines, so I-33 is always on the machine where it’s needed.

i-33 Grading System is perfect for:

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