Quick Answer
What is the Topcon 3D-MC Max?
See also: Trimble GCS900 Grade Control System
See also: Leica MC1 Machine Control System
The Topcon 3D-MC Max is a GNSS machine control system for dozers and graders that uses the MC-Max in-cab display and dual-antenna GNSS receiver to achieve 10–25mm 3D blade accuracy with MAGNET Earthworks software.
Topcon 3D-MC Max — Complete Specs, Manual & Guide
Category: Machine Control | Brand: Topcon | Model: 3D-MC Max
The Topcon 3D-MC Max is Topcon's advanced machine control platform combining GNSS positioning with the MAGNET Earthworks field software. The system features the large-format MC-Max in-cab display, Topcon's HiPer HR base station integration, and optional total station augmentation for GPS-challenged environments. It is widely used on Cat and Komatsu dozers and motor graders.
Topcon 3D-MC Max Full Specifications
| Horizontal accuracy (RTK) | 10mm + 1ppm RMS |
| Vertical accuracy (RTK) | 15mm RMS |
| GNSS update rate | 10Hz |
| GNSS constellations | GPS, GLONASS, Galileo, BeiDou, QZSS |
| Display unit | MC-Max — 10.1" sunlight-readable touchscreen |
| GNSS receivers | Dual HiPer HR antennas for heading solution |
| Radio link | UHF 410–470 MHz or 900MHz spread spectrum |
| Slope sensor | Dual-axis digital slope sensor for cross-fall |
| Operating voltage | 9–36VDC |
| Operating temperature | -40°C to +70°C |
| IP rating | IP67 |
Accessories & Part Numbers
- MC-Max display — 10.1" in-cab controller with MAGNET Earthworks
- HiPer HR GNSS receiver — High-accuracy dual-constellation antenna
- Topcon dual-axis slope sensor — Cross-fall and blade pitch sensor
- RL-H5A laser receiver — Optional laser augmentation for finish grading
- 3D-MC Max base station — UHF base transmitter for RTK corrections
Error Codes Quick Reference
| ERR-01 | No GNSS signal — check antenna cables and sky view obstruction |
| ERR-03 | RTK float — base station link unstable or corrections stopped |
| ERR-07 | Design file not loaded — import surface via MAGNET Earthworks |
| ERR-12 | Slope sensor fault — inspect sensor wiring and recalibrate |
Frequently Asked Questions — Topcon 3D-MC Max
What accuracy does the Topcon 3D-MC Max achieve?
The 3D-MC Max achieves 10mm horizontal and 15mm vertical accuracy with RTK corrections. This is slightly better vertical performance than many competing systems, making it well-suited for finish grading applications.
What machines is the Topcon 3D-MC Max compatible with?
The 3D-MC Max supports Cat, Komatsu, John Deere, Case, and Volvo dozers and motor graders. Topcon provides machine-specific mounting kits and pre-configured hydraulic valve harnesses for major machine models.
How does the Topcon 3D-MC Max compare to Trimble GCS900?
Both systems achieve similar RTK accuracy. The 3D-MC Max offers a larger 10.1" display vs the GCS900's 7" CB460, and supports a wider range of GNSS constellations including QZSS. Topcon's MAGNET Earthworks software is comparable in features to Trimble's Earthworks suite.
Can the 3D-MC Max work with a total station instead of GNSS?
Yes. The 3D-MC Max supports total station augmentation using Topcon robotic total stations, enabling machine control in urban canyons or under bridges where GNSS is unreliable. The system switches automatically between GNSS and total station as signal conditions change.
Related models: Trimble GCS900 | Leica MC1
Track your 3D-MC Max calibration dates, service history, and field verification records with Gradelog's Equipment Registry. Free to start at gradelog.com.
