Topcon GT-1500 | GT-700 Robotic Total Station
Introduction to the Topcon GT-1500 and GT-700
The Topcon GT-1500 and Topcon GT-700 are next-generation robotic total stations engineered for high-speed surveying, construction layout, infrastructure measurement, and precision positioning applications.
Developed by Topcon Positioning Systems, the GT-1500 and GT-700 Series combine ultra-fast robotic tracking, Hybrid Positioning technology, reflectorless EDM, and advanced motor drive systems into compact and lightweight surveying instruments.
These robotic total stations are designed for professionals who require rapid measurement workflows, high reliability, single-operator efficiency, and accurate digital construction performance in demanding field environments.
Why Choose the Topcon GT-1500 and GT-700
High-Speed Robotic Surveying
The GT Series delivers exceptional robotic turning speed and prism tracking performance for efficient field productivity.
Compact and Lightweight Design
Topcon engineered the GT Series to be among the lightest robotic total stations in its class while maintaining rugged durability.
Hybrid Positioning Technology
The GT Series integrates robotic total station and GNSS workflows for improved site productivity and flexible positioning operations.
Advanced Brushless Drive Motors
The new Silky Drive brushless DC motor technology improves rotational smoothness, tracking performance, and operational durability.
Key Features of Topcon GT-1500 and GT-700
Silky Drive Motor Technology
Topcon’s newly developed Silky Drive® system improves tracking speed, rotational accuracy, and quiet operation.
Advantages
- Faster prism tracking
- Smooth robotic movement
- Improved stability
- Reduced motor wear
- Silent operation
- Enhanced durability
UltraTrac Prism Tracking
UltraTrac technology enables rapid prism locking and stable target tracking in busy or obstructed environments.
Benefits
- Reliable prism lock
- Fast reacquisition
- Improved tracking stability
- Reduced field downtime
- Efficient one-person operation
Hybrid Positioning Workflow
The GT Series supports seamless GNSS integration for efficient positioning workflows across large sites.
Workflow Advantages
- Fewer total station setups
- Faster site coverage
- Improved crew productivity
- Simplified machine control integration
Reflectorless Measurement Technology
Both models support long-range reflectorless measurements for inaccessible or hazardous targets.
Applications
- Structural measurements
- Façade inspection
- Utility mapping
- Road surveys
- Industrial documentation
Difference Between GT-1500 and GT-700
GT-1500 Overview
The GT-1500 Series is optimized for high-precision single-operator robotic surveying and advanced tracking applications.
Key Characteristics
- Auto-tracking robotic system
- Faster rotation speed
- Longer reflectorless range
- Higher precision models available
GT-700 Overview
The GT-700 Series is designed for efficient auto-pointing and standard robotic layout workflows.
Key Characteristics
- Auto-pointing robotic system
- Slightly lower tracking speed
- Reduced reflectorless range
- Cost-efficient robotic workflow
Applications of Topcon GT-1500 and GT-700
Land Surveying
Suitable for:
- Boundary surveys
- Control surveys
- Topographic mapping
- Utility surveys
- Geodetic applications
Construction Layout
Ideal for:
- Building layout
- Anchor bolt positioning
- Concrete formwork
- Structural steel alignment
- MEP installation
Infrastructure Projects
Supports:
- Road construction
- Railway alignment
- Bridge surveys
- Tunnel projects
- Airport development
Machine Control Integration
The GT Series integrates efficiently with machine control systems and digital construction workflows.
Industrial Surveying
Used for:
- Plant layout
- Equipment installation
- Structural verification
- Facility retrofits
- Industrial alignment
Topcon GT-1500 | GT-700 Technical Specifications
General Specifications
| Specification | GT-1500 | GT-700 |
|---|---|---|
| Product Type | Robotic Total Station | Robotic Total Station |
| Manufacturer | Topcon Positioning Systems | Topcon Positioning Systems |
| Operation Type | Single Operator | Single / Two Operator |
| Positioning Technology | Hybrid Positioning | Hybrid Positioning |
| Motor Technology | Silky Drive® BLDC | Silky Drive® BLDC |
| Prism Tracking | UltraTrac | UltraTrac |
| Housing Design | Compact & Lightweight | Compact & Lightweight |
| Weight | Approx. 5.9 kg | Approx. 5.9 kg |
| Dust & Water Rating | IP65 | IP65 |
Angular Measurement Specifications
| Specification | GT-1500 | GT-700 |
|---|---|---|
| Angular Accuracy Options | 1″, 2″, 3″ | 2″, 3″, 5″ |
| Angle Measurement Method | Absolute Encoder | Absolute Encoder |
| Minimum Display | 0.1″ | 0.1″ |
| Compensator Type | Dual Axis | Dual Axis |
| Compensator Range | ±6′ | ±6′ |
| Automatic Compensation | Yes | Yes |
Distance Measurement Specifications
Prism Measurement
| Specification | GT-1500 | GT-700 |
|---|---|---|
| Prism Range | Up to 5,000 m | Up to 4,500 m |
| Prism Accuracy (Fine) | ±(1 mm + 2 ppm) | ±(2 mm + 2 ppm) |
| Prism Type Support | Standard & 360° | Standard & 360° |
| Tracking Capability | Advanced | Standard |
| Continuous Tracking | Yes | Yes |
Reflectorless Measurement
| Specification | GT-1500 | GT-700 |
|---|---|---|
| Reflectorless Range | Up to 1,000 m | Up to 800 m |
| Reflectorless Accuracy | ±(2 mm + 2 ppm) | ±(2 mm + 2 ppm) |
| Laser Type | Red Laser Diode | Red Laser Diode |
| Non-Prism Measurement | Supported | Supported |
Rotation and Tracking Specifications
| Specification | GT-1500 | GT-700 |
|---|---|---|
| Maximum Turning Speed | 200°/sec | 120°/sec |
| Maximum Auto Tracking Speed | 20°/sec | 18°/sec |
| Prism Reacquisition | UltraTrac | UltraTrac |
| Tracking Technology | Robotic Auto Tracking | Auto Pointing |
| RC-5A Compatibility | Yes | Yes |
Telescope Specifications
| Specification | Details |
|---|---|
| Telescope Magnification | 30x |
| Resolving Power | 2.5″ |
| Minimum Focus Distance | 1.3 m |
| Reticle Illumination | Supported |
| Optical System | High Precision |
Communication and Connectivity
| Specification | Details |
|---|---|
| Bluetooth | LongLink Bluetooth |
| Communication Range | Up to 600 m |
| Wi-Fi | Supported |
| USB Support | Yes |
| Internal Memory | 1 GB |
| Wireless Data Transfer | Supported |
| Remote Control | RC-5A Compatible |
Display and Interface Specifications
| Specification | Details |
|---|---|
| Display Type | Color Touchscreen |
| Keyboard | Alphanumeric |
| Onboard Data Collection | Supported |
| Software Compatibility | Topcon Field / Pocket3D |
| User Interface | Graphical |
Environmental Specifications
| Specification | Details |
|---|---|
| Protection Rating | IP65 |
| Dustproof | Yes |
| Waterproof | Yes |
| Operating Environment | Construction & Survey |
| Rugged Design | Field Optimized |
Software Compatibility
| Software | Function |
|---|---|
| Topcon Field | Survey Data Collection |
| Pocket3D | Construction Layout |
| MAGNET Field | Field Workflows |
| MAGNET Office | Data Processing |
| Machine Control Systems | Equipment Guidance |
Advantages of the GT-1500 and GT-700
Faster Survey Productivity
The GT Series significantly improves surveying efficiency with robotic automation and high-speed prism tracking.
Single-Person Operation
Surveyors can complete layout and measurement tasks without requiring additional crew members.
Improved Field Accuracy
Advanced tracking and robotic positioning help maintain reliable measurement precision.
Rugged Construction Durability
The IP65-rated housing protects the instrument in demanding jobsite conditions.
Compact Mobility
Lightweight construction improves transportation and field handling efficiency.
Industries Using Topcon GT-1500 and GT-700
Surveying Industry
Used for:
- Geodetic surveys
- Cadastral mapping
- Utility surveys
- Control networks
Construction Industry
Supports:
- Digital layout
- Concrete positioning
- Structural alignment
- BIM workflows
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