Topcon GX-55 Grader Auto Machine Control w/ Dual-Antenna MC-R3 FH915+

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Michigan based company with a global presence. We ship worldwide to thousands of satisfied customers. Offering Same-Day Shipping & pickup for metro Detroit area land surveyors, civil engineers, architects, excavating & construction companies at our local store in Allen Park, MI. Our equipment is backed by exceptional customer service and support, along with a full warranty.

Offering New & Refurbished Total Stations, GPS / GNSS Base & Rovers, Radios, Antennas, Data Collectors, Grade & Pipe Lasers, Digital Levels, Magnetic Locators, Grade Control Systems, AgGPS Systems, Field Supplies, Accessories, Hand Tools & Safety Equipment!


Included ItemsItem DescriptionShipping InfoPayment Info

* Topcon GX-55 Display (BC# -L/T*)
      *3D-MC Software
* Topcon MC-R3 Dual Antenna Receiver w/ Mounting Bracket (BC# -L/T*)
      * FH915+ 900 MHz Internal Radio
* (2) Topcon PG-S3 Antennas (BC# -L/T*)
* Radio Antenna
* Dual Antenna Cable
* Topcon Transport Case

Condition: Refurbished 

Warranty: 1 Year Warranty

Topcon 3D-MC Grader Auto Machine Control w/ GX-55 & Dual-Antenna MC-R3 FH915+

Topcon 3D-MC Grader Auto Machine Control w/ GX-55 & Dual-Antenna MC-R3 FH915+

The Topcon 3D-MC Grader Autos Machine Control Kit with GX-55 and dual-antenna MC-R3 FH915+ is a GNSS-based grading system that helps a motor grader shape ground to a digital design. It compares the blade’s calculated position with the required surface, supporting road construction, site preparation, and finish grading.

The GX-55 touchscreen display provides the operator’s interface inside the cab. It shows project-design information, machine position, and grade guidance, helping the operator monitor progress while working. Physical controls and integrated grade-indicator LEDs provide additional response alongside the color screen.

The MC-R3 receiver/controller combines GNSS positioning, radio communication, and machine-control electronics. In its dual-antenna configuration, it uses two external GNSS antennas to support positioning and orientation measurements. Together with the machine’s sensors and calibration, this information allows the system to calculate the blade’s relationship to the design. “Dual” refers to the positioning configuration rather than necessarily two MC-R3 boxes. 

The FH915+ radio provides a frequency-hopping communication link in the 900 MHz range for receiving compatible RTK correction data. These corrections support precise GNSS positioning without requiring cellular coverage for the base-to-machine connection. The base radio and machine receiver must use compatible settings and correction formats.

The “Autos” capability allows a properly equipped and calibrated grader to adjust blade elevation and cross-slope automatically while the operator drives and manages material.

The Topcon 3D-MC Grader Autos Machine Control Kit with GX-55 and dual-antenna MC-R3 FH915+ is a positioning and automatic grading system for compatible motor graders. It compares the blade’s calculated position with a digital design, helping operators form roads, pads, slopes, and other earthwork surfaces to the required elevations.

The GX-55 touchscreen display provides project information inside the cab. Its color screen shows the machine’s position and its relationship to the design, allowing the operator to monitor grading progress. Physical controls and integrated grade-indicator LEDs provide additional response while working.

The MC-R3 receiver/controller combines GNSS positioning, radio communication, and machine-control functions in one housing. In a dual-antenna configuration, it uses two external GNSS antennas to help determine position and orientation. Together with the grader’s sensors and calibration measurements, this information supports calculation of the blade’s position. Here, “dual” describes the antenna configuration rather than necessarily meaning two MC-R3 boxes.

The FH915+ radio provides a frequency-hopping communication link in the 900 MHz class for receiving corrections from a compatible base station. These corrections support precise RTK positioning as the grader moves. Communication depends on compatible radio settings, correction formats, and adequate signal coverage. 

The “Autos” capability refers to automatic blade adjustments on a suitably equipped machine. With the necessary hydraulic interfaces, sensors, software options, and calibration, the system controls blade elevation and cross-slope while the operator drives and manages material. This helps maintain consistent grade and reduce corrective passes; the kit’s exact enabled functions and installation requirements should be confirmed for the grader.


Features:

• GPS enabled: Tracks GPS satellite signals for positioning.
• GLONASS enabled: Tracks additional satellites to improve positioning availability.
• Grader Automatics enabled: Supports automatic blade elevation and cross-slope control on a properly equipped grader.
• Dual-antenna positioning: Uses two external GNSS antennas to help determine position and orientation.
• RTK correction support: Provides precise positioning with a compatible correction source.
• FH915+ radio: Receives correction data through a compatible 900 MHz frequency-hopping radio link.
• MC-R3 receiver/controller: Combines GNSS positioning, communications, and machine-control functions.
• GX-55 color touchscreen: Displays machine position, design surfaces, and grading guidance.
• Grade-indicator LEDs: Provide visual response to help maintain the target grade.
• Digital design guidance: Compares blade position with planned elevations and slopes.
• Cut-and-fill information: Helps operators identify where material needs removing or adding.
• Rugged construction: Designed for demanding machine-mounted applications.

ComponentFeature / SpecificationDetailsSystemApplication3D motor-grader guidance and automatic blade controlSystemGPS optionEnabled — user confirmedSystemGLONASS optionEnabled — user confirmedSystemGrader AutomaticsEnabled — user confirmedGX-55DisplayColor analog touchscreenGX-55Resolution640 × 480 pixelsGX-55Operating systemWindows CEGX-55Power supply9–32 V DCGX-55ConnectionsTwo USB, Ethernet, RS-232, two CAN bus, two digital inputsGX-55Operating temperature−40°C to +70°CGX-55Weight1 kg; 1.26 kg with backpack moduleMC-R3FunctionsGNSS receiver, correction radio, machine controllerMC-R3Antenna configurationDual external GNSS antennasMC-R3RadioFH915+ frequency-hopping, 900 MHz classMC-R3Power supply10–30 V DCMC-R3HousingPowder-coated cast aluminumMC-R3Communication interfacesRS-232, RS-485, CAN, Ethernet, I²CMC-R3Main connectorsTwo 40-pin Deutsch connectorsMC-R3Status indicatorsController, sensors, CAN, automatic control, radio, main/auxiliary GNSSMC-R3Protection ratingIP66MC-R3Shock resistance50 g, 11 ms half-sine, each axisAutomatic controlRequirementsCompatible hydraulics, sensors, wiring, software, and calibrationRTK positioningRequirementsCompatible correction source and radio settings

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• Items will be shipped within 24 hours (1 Business Day) upon receipt of payment from the winning buyer. (Certain orders may take longer for processing due to comprehensive final service inspections)

• A Shipment Tracking number(s) will be provided to inform Buyers of their expected ETA (Estimated Time of Arrival). Tracking number(s) will be provided the same day as order shipment.
  

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