Gantry crane
Semi-Automatic Gantry Crane 3–20 Ton | Enhanced Control, Efficient, CE-Compliant

Product Overview
The Semi-Automatic Single Girder Gantry Crane is an intelligent lifting system that bridges the gap between manual and fully automated operation. This crane combines the robust structure of a single girder gantry with advanced control features, such as powered travel with assisted positioning and programmable travel paths. Operating on ground-level rails, it offers motorized hoist, trolley, and crane movement controlled via pendant or remote, while semi-automatic functions enhance precision and reduce operator workload. It is an innovative solution for workshops and production lines seeking to improve efficiency and repeatability in their material handling tasks.
Product Advantages
- Enhanced Precision and Repeatability: Semi-automatic features allow for programmed stop points or assisted positioning, ensuring consistent and accurate placement of loads every time. This reduces cycle times and minimizes human error in repetitive tasks.
- Increased Operator Efficiency: By automating parts of the travel process, the crane reduces the operator’s physical and mental workload, allowing them to focus on the final, critical stages of load placement, which boosts both productivity and safety.
- Cost-Effective Automation: Provides many benefits of automation—such as improved accuracy and efficiency—at a fraction of the cost of a fully automated robotic system, offering an excellent return on investment.
- Flexible Operation Modes: Operators can easily switch between manual control for unique tasks and semi-automatic mode for repetitive lifting, providing the flexibility to handle a wide variety of operational needs.
- Independent and Versatile: Like a standard gantry crane, it operates independently of the building structure, making it suitable for both indoor and outdoor applications without requiring costly building modifications.
Application Scenarios
- Production Line Material Feeding: Ideal for repetitively moving components from a staging area to a specific machine or point on an assembly line with high precision.
- Mold and Die Handling: Automatically transports heavy molds to and from presses, stopping at pre-set positions for safe and efficient changeovers.
- Automated Warehousing Tasks: Can be programmed to move goods along a fixed path between storage racks and loading/unloading zones.
- Component Assembly: Assists in the precise alignment of large parts during assembly by moving them to exact, pre-determined coordinates.
- Testing and Quality Control Bays: Consistently positions products or components in a designated inspection area for automated or manual quality checks.
Product Specifications
| Parameter | Specification |
|---|---|
| Rated Capacity | 3t / 5t / 10t / 16t / 20t (Customizable) |
| Span | 5 m to 35 m (Customized to your workspace) |
| Max. Lifting Height | 3 m to 30 m (Customized as per demand) |
| Work Duty | A3–A5 (Light to Medium Duty) |
| Lifting Speed | 4–8 m/min (Two-speed or VFD) |
| Trolley Traveling Speed | 2–20 m/min (VFD controlled for precision) |
| Crane Traveling Speed | 10–60 m/min (VFD controlled with positioning sensors) |
| Hoist Type | Electric Wire Rope Hoist or Electric Chain Hoist |
| Hoist Motor | Dual-speed or VFD-controlled motor with encoder |
| Travel Motors | VFD-controlled gear motors with encoders |
| Control Methods | Pendant/Remote with Semi-Automatic Functionality (PLC Control) |
| Power Supply | 3-Phase 380V/400V/415V/440V, 50/60Hz |
| Control Voltage | 24V / 36V / 48V (Safe control voltage) |
| Electrical Components | Schneider, Siemens, or equivalent PLC and VFD brands |
| Safety Devices | Overload limiter, laser anti-collision, travel limiters, emergency stop |
| Working Temperature | -25°C to +40°C |
| Protection Class | IP54 (IP55 for outdoor models) |
| Paint/Finish | Industrial anti-corrosion primer and heavy-duty topcoat |
| Steel Grade | Q235B / Q355B Carbon Structural Steel |
| Wheel/End Carriage | Forged steel wheels for rail travel |
| Rail Size (typical) | P24, P38, QU70 (Recommended for the application) |
| Braking | Electromagnetic disc brakes for all motors |
| Limit Switches | Included for all hoisting and travel motions |
| Documentation | Certificate of Conformity, Programming Manuals, CE/ISO Certificates |
| Warranty | 1 Year |
| Lead Time | 30–45 days (negotiable for specific configurations) |

Features at a Glance
- Semi-automatic control features for enhanced precision and efficiency.
- Ideal for repetitive lifting tasks in production and assembly.
- Flexible operation with both manual and assisted modes.
- Cost-effective step towards automation without a full robotic system.
- CE-compliant, fully customizable system for indoor or outdoor use.
FAQ
1. What’s the information should I provide when inquiry?
More details or drawings, better. A: Lift capacity B: Crane arm length C: lift height: hook travel distance D: What material to lift E: power source or other specials you give us will be more appreciated.
2. How many operating methods for my selection?
Standard operating methods: A: pendent controller with push buttons .B: remote control with push buttons. Choose any type as you like.
3. Can this type work in hazardous environment?
Sure! We can customize for you, acid proof or explosion proof, no problem for that.
4. What about warranty time ?
Use within the standard for the next 12 months.
5. How can we install the crane? Our senior engineer can be your side to do the installation guide service and training.
6. May I visit your factory?
Of course. We can pick you up at train station, high-speed rail station or airport, and book hotel for you.