Stonex STX-Dozer 3D Machine Control System: Precision Grading for Australian Contractors
Advanced 3D Guidance Technology for Dozer Operations
The Stonex STX-Dozer 3D machine control system represents the cutting edge of precision grading technology for Australian civil construction and mining contractors. As an integral part of Red Edge Resources’ comprehensive machine guidance solutions, the STX-Dozer system delivers real-time 3D guidance, intuitive operation, and exceptional accuracy that transforms how dozers work on modern construction sites.
Whether you’re performing bulk earthworks, building haul roads, constructing building pads, or executing final grade work, the Stonex STX-Dozer system provides the precision and efficiency that Australian contractors need to maximise productivity, reduce costs, and deliver superior results.
Understanding 3D Dozer Machine Control
What Is 3D Dozer Machine Control?
Three-dimensional machine control systems for dozers use GNSS (Global Navigation Satellite System) positioning and advanced sensors to provide real-time guidance for blade operations:
Core Components:
- GNSS receivers – Track precise machine and blade position using satellite signals
- Tilt and slope sensors – Monitor blade angle, cross-slope, and machine attitude
- In-cab display – Shows real-time cut/fill information and design surfaces
- Hydraulic control valves – Optional automatic blade control
- Design files – Digital 3D models guide grading to exact specifications
Real-Time Guidance:
- Displays blade cutting edge position relative to design surface
- Shows cut/fill depth across entire blade width
- Provides visual and numerical guidance
- Eliminates need for grade stakes and constant checking
- Enables precise grading with minimal surveyor involvement
Accuracy Performance:
- Typical accuracy: ±15-25mm vertical
- Optimal conditions: ±10mm vertical achievable
- Horizontal positioning: ±20-30mm typical
- Real-time updates: Continuous position calculation at 10-20Hz
Traditional Dozer Grading vs 3D Machine Control
Traditional Methods:
- Extensive survey staking throughout site
- Laser or string line guidance (limited to flat or simple slopes)
- Frequent grade checking with level or laser
- Multiple surveyor site visits
- Reliance on operator experience and skill
- High risk of over-cutting or under-cutting
- Constant rework and material waste
STX-Dozer 3D System:
- Digital design files replace physical stakes
- Continuous real-time grade information across blade
- Work in any terrain or slope configuration
- Minimal surveyor involvement during grading
- Precise guidance regardless of operator experience
- Accurate first-pass grading
- Dramatic reduction in rework and material handling
Stonex STX-Dozer System Components
In-Cab Display Unit
The STX-Dozer features a rugged, intuitive touchscreen display designed for harsh dozer environments:
Display Specifications:
- Screen size: 12.1-inch high-resolution touchscreen
- Brightness: 1000+ cd/m² for extreme sunlight visibility
- Resolution: 1920×1200 pixels for crystal-clear graphics
- Touch interface: Heavy-duty capacitive touchscreen (glove-compatible)
- Mounting: Robust adjustable bracket for optimal viewing position
- Environmental rating: IP67 dust-tight and waterproof protection
Display Features:
- Blade view – Real-time visualisation of blade position relative to design
- Multi-point cut/fill indicators – Left, centre, and right blade edge readings
- Cross-section view – Shows design profile and current blade position
- Plan view – Overhead map with design elements and machine location
- 3D perspective view – Three-dimensional representation of work area
- Numerical readouts – Precise cut/fill measurements in millimetres
- Design surface display – Visual representation of target grade
Operator Interface:
- Intuitive menu navigation with large touch targets
- Quick access to frequently used functions
- Customisable display layouts and colour schemes
- Multiple simultaneous view options
- Simple job file selection and loading
- Easy blade offset and reference adjustments
- Configurable alerts and warnings
GNSS Positioning System
Professional-grade satellite positioning provides the foundation for accurate guidance:
GNSS Receivers:
- Dual GNSS antennas – Mounted on dozer cab (mast-mounted configuration)
- Multi-constellation support – GPS, GLONASS, Galileo, BeiDou, QZSS
- RTK correction capability – Centimetre-level positioning accuracy
- Update rate – 10-20Hz for smooth, responsive guidance
- Communication – Radio or cellular RTK corrections
- Tilt compensation – Accurate positioning on slopes and uneven terrain
Positioning Accuracy:
- RTK fixed mode: ±8-10mm + 1ppm horizontal
- RTK fixed mode: ±15-20mm + 1ppm vertical
- RTK float mode: ±100-300mm (backup mode)
- Initialisation time: <10 seconds typical
- Reliability: >99.9% RTK fixed availability in open conditions
RTK Correction Sources:
- Red Edge base station (Stonex S850 or similar)
- Network RTK via cellular connection (CORSnet-NSW, GPSnet, etc.)
- Radio base station (up to 8-10km range for dozers)
- Hybrid configuration for maximum reliability and uptime
Sensor Package
Advanced sensors monitor dozer geometry, blade position, and machine attitude:
Inertial Measurement Unit (IMU):
- Dual-axis tilt sensors – Monitor machine pitch and roll
- Gyroscopic sensors – Track machine heading and rotation
- Accelerometers – Detect dynamic movement and vibration
- Update rate – High-frequency sampling (50-100Hz) for smooth operation
- Automatic calibration – Compensation for sensor drift and temperature
Blade Position Sensors:
- Sonic/ultrasonic sensors – Measure blade height at multiple points
- Rotary encoders – Track blade lift cylinder position
- Tilt sensors – Monitor blade angle and cross-slope
- Redundant sensing – Multiple measurement methods for reliability
- Weatherproof construction – Protected from dust, water, mud, and impact
Blade Monitoring Points:
- Left blade edge position
- Centre blade position
- Right blade edge position
- Blade tilt/cross-slope angle
- Blade pitch angle
- Cutting edge elevation at all points
Machine Geometry Measurement:
- Machine centre of rotation
- Blade dimensions (width, height, cutting edge)
- Blade pivot point locations
- GNSS antenna positions relative to machine
- Sensor mounting locations and offsets
Control Box and Processing Unit
The system’s computational heart processes sensor data and manages all system functions:
Processing Capabilities:
- High-performance processor – Real-time position calculations for multiple blade points
- Multi-tasking operation – Simultaneous data processing and display updates
- Design file management – Handle large, complex 3D surface models
- Coordinate transformations – Support multiple coordinate systems (MGA2020, local grids)
- Data logging – Record grading progress and as-built surface data
- Predictive algorithms – Anticipate blade movement for smooth guidance
Connectivity:
- CAN bus integration – Connect to dozer electronic systems
- Bluetooth – Wireless display connection option
- USB ports – File transfer, configuration, and software updates
- Serial communications – Legacy equipment compatibility
- Ethernet – Network connectivity for remote diagnostics
Environmental Protection:
- IP67 rating – Dust-tight and waterproof to 1 metre
- Vibration resistant – Withstands extreme dozer vibration and shock
- Temperature range – -40°C to +75°C operation
- Shock protection – Rugged mounting and robust construction
- EMI shielding – Protection from electrical interference and hydraulic noise
Optional Automatic Blade Control
Advanced automation for maximum productivity and precision:
Hydraulic Control Valves:
- Proportional control valves – Precise hydraulic flow management
- Lift control – Automatic blade height adjustment
- Tilt control – Automatic blade cross-slope adjustment
- Response tuning – Adjustable sensitivity and aggressiveness
- Manual override – Operator can take control instantly
Automation Modes:
- Full automatic – System controls blade lift and tilt
- Lift-only automatic – System controls height, operator controls tilt
- Tilt-only automatic – System controls cross-slope, operator controls height
- Manual with guidance – Operator controls, system provides visual guidance
- Automatic to grade – System brings blade to design surface automatically
Benefits of Automation:
- Reduced operator fatigue on long grading runs
- Consistent accuracy regardless of operator skill
- Faster grading with fewer passes
- Improved fuel efficiency through optimised blade control
- Enhanced productivity on repetitive grading tasks
STX-Dozer System Capabilities
3D Design Surface Guidance
The core functionality that revolutionises dozer productivity:
Design File Support:
- File formats: .dxf, .dwg, .xml, .csv, .ttm, .svd, .12d, .LandXML
- Surface types: TIN surfaces, DTM models, road alignments, corridors
- Multiple surfaces: Switch between design layers instantly
- Complex geometry: Handle intricate 3D designs and transitions
- Large files: Process extensive site models efficiently (100,000+ triangles)
- Linework support – Road centrelines, kerbs, boundaries, features
Real-Time Cut/Fill Display:
- Colour-coded indicators:
- Red zone – Cut required (blade above design grade)
- Blue zone – Fill required (blade below design grade)
- Green zone – On grade (within tolerance)
- Multi-point display – Left, centre, and right blade readings simultaneously
- Numerical depth display – Precise measurements in millimetres
- Tolerance bands – Configurable for finish vs rough grading (±10mm to ±100mm)
- Audio alerts – Optional sound notifications for grade achievement
- Haptic feedback – Optional vibration alerts (on compatible systems)
Visual Guidance Modes:
- Blade view – Front view showing blade position relative to design
- Cross-section – Side view showing design profile and blade
- Plan view – Overhead map with position indicator and design elements
- 3D perspective – Three-dimensional view of work area
- Slope guidance – Visual indicators for cross-slope and batter work
- Multi-view display – Multiple perspectives simultaneously on split screen
Cross-Slope and Grade Control
Essential capabilities for road construction and complex grading:
Cross-Slope Functionality:
- Real-time cross-slope display – Shows current blade tilt angle
- Target cross-slope indication – Design cross-slope from 3D model
- Left/right tilt guidance – Visual indicators for blade adjustment
- Automatic tilt control – Optional automatic cross-slope management
- Tolerance monitoring – Alerts when outside specification
Applications:
- Road crown and camber construction
- Drainage grades and cross-falls
- Building pad slopes for drainage
- Car park and pavement grading
- Runway and taxiway construction
Grade Control:
- Longitudinal grade display – Forward/backward slope indication
- Design grade following – Continuous adjustment to changing grades
- Transition handling – Smooth grade changes and vertical curves
- Constant grade mode – Maintain fixed slope over distance
- Grade matching – Tie into existing grades accurately
Offset and Layer Control
Critical features for versatile grading applications:
Vertical Offset Functionality:
- Purpose: Adjust reference elevation relative to design surface
- Applications:
- Grading subgrade below final surface elevation
- Allowing for base course or pavement thickness
- Compensating for blade wear
- Creating multiple grade layers from single design
- Fine-tuning final elevations
Offset Input Methods:
- Manual numerical entry (positive or negative values)
- Quick preset buttons for common offsets
- Reference point measurement and calculation
- Layer-based offset management
Display Integration:
- Current offset value prominently displayed
- Adjusted elevation shown in real-time
- Design surface and offset surface both visible
- Easy toggle between design and offset views
Practical Applications:
- Subgrade preparation 150mm below final grade
- Base course grading 50mm below pavement surface
- Multiple lift grading in mining applications
- Allowance for compaction settlement
- Finish grade fine-tuning
Linework and Alignment Guidance
Specialised functionality for road and linear construction:
Centreline Following:
- Display road centreline on plan view
- Show offset distance from centreline
- Guidance for staying on alignment
- Chainage/stationing display
- Horizontal curve navigation
Offset Staking:
- Work at specified offset from centreline
- Parallel path guidance
- Multiple offset lines simultaneously
- Kerb and gutter line guidance
- Shoulder and table drain alignment
Corridor Construction:
- Road corridor model support
- Automatic cross-section selection based on chainage
- Transition zone handling
- Intersection and roundabout guidance
- Superelevation transitions
Linear Feature Applications:
- Highway and road construction
- Airport runway and taxiway grading
- Railway formation grading
- Pipeline right-of-way preparation
- Haul road construction in mining
As-Built Data Collection and Verification
Built-in quality control and documentation capabilities:
Automatic As-Built Logging:
- Continuous recording of blade position during grading
- High-density point cloud generation
- Surface model creation from grading passes
- Time-stamped data for progress tracking
- GPS coordinates for every recorded point
Quality Assurance Features:
- Tolerance monitoring – Real-time alerts when outside specifications
- Over-cut warnings – Prevent excessive material removal
- Under-cut indicators – Identify areas needing additional passes
- Progress mapping – Visual indication of completed vs remaining areas
- Verification points – Spot-check critical elevations during work
Data Export and Reporting:
- Export as-built surfaces to office software
- Generate cut/fill volume reports
- Create progress documentation for clients
- Compliance reporting for specifications
- Integration with project management systems
Volume Calculations:
- Compare design surface to as-built surface
- Calculate cut and fill volumes
- Track material movement and quantities
- Monitor project progress against estimates
- Identify areas requiring additional work
Applications for Australian Construction and Mining
Road and Highway Construction
The primary application where STX-Dozer systems excel:
Subgrade Preparation:
- Precise elevation control for road formation
- Consistent cross-slope and crown construction
- Smooth transitions and vertical curves
- Tight tolerance achievement (±10-15mm typical)
- Reduced base course material requirements
Base Course Grading:
- Accurate thickness control
- Proper cross-fall and drainage grades
- Smooth, even surface for pavement
- Minimised material waste
- Improved pavement performance and longevity
Shoulder and Table Drain Construction:
- Accurate batter slopes for drainage
- Consistent grades for water flow
- Smooth transitions to pavement
- Proper tie-ins to existing ground
- Erosion control feature construction
Project Benefits:
- 40-60% faster grading operations
- 80-90% reduction in survey staking
- 50-70% reduction in rework
- Improved surface quality and smoothness
- Enhanced project profitability
Building Pads and Site Development
Efficient site preparation for commercial and industrial development:
Commercial Building Pads:
- Large area grading to precise elevations
- Consistent slopes for drainage (1-2% typical)
- Smooth surface for slab construction
- Accurate tie-ins to surrounding grades
- Volume optimisation (balanced cut/fill)
Industrial Site Preparation:
- Multi-level pad construction
- Ramp and access way grading
- Drainage feature integration
- Precise elevations for equipment foundations
- Large-scale earthwork efficiency
Subdivision Development:
- Lot pad preparation and grading
- Street subgrade construction
- Drainage swale and basin grading
- Bulk earthworks and site shaping
- Consistent quality across entire development
Advantages:
- Single-pass accuracy reduces equipment hours
- Minimised material import/export costs
- Faster project completion timelines
- Improved drainage and site functionality
- Reduced surveyor and checking costs
Mining Applications
Rugged performance for demanding mining environments:
Haul Road Construction and Maintenance:
- Precise grade control for optimal truck performance
- Consistent cross-slope for drainage and safety
- Smooth surface reduces tyre wear and fuel consumption
- Rapid construction and reconstruction
- Minimal surveyor involvement in remote locations
