General purpose overhead crane
Double Girder Overhead Crane with Electric Hoist
Product Overview
The Double Girder Overhead Crane with Electric Trolley and Hoist is a powerful and stable material handling solution designed for heavy-duty applications. Featuring two main bridge girders, this crane offers superior rigidity and load stability compared to single girder designs, making it ideal for lifting and moving heavy or bulky loads over wide spans. The system includes a high-performance electric hoist mounted on a trolley that travels along the top of the girders, providing maximum lifting height and precise load control for demanding industrial environments.
Product Advantages
- Superior Stability and Capacity: The dual-girder construction provides exceptional torsional rigidity, minimizing deflection and ensuring stable, secure handling of heavy loads, with standard capacities ranging from 5 to 50 tons and beyond.
- Maximum Lifting Height: The hoist trolley travels on top of the bridge girders, creating more headroom and maximizing the vertical lifting height compared to under-running hoists, making it perfect for facilities with high clearance requirements.
- High-Speed and Precision Control: Engineered for efficiency, this crane offers higher travel speeds. With standard two-speed controls and optional Variable Frequency Drives (VFDs), it delivers both rapid movement and precise, gentle positioning.
- Durability for Heavy-Duty Use: Built with a robust structure and high-quality components, including reliable motors and electricals, this crane is designed for A5–A6 work duties, ensuring long-term performance in demanding industrial settings.
- Enhanced Safety Features: Equipped with a full suite of safety devices, including redundant braking systems, overload protection, and anti-collision sensors, to ensure the highest level of operational safety for personnel and equipment.
Application Scenarios
- Heavy Manufacturing & Steel Mills: Ideal for handling large fabrications, steel coils, slabs, and other heavy materials in production and processing facilities.
- Large Machine Shops & Assembly Plants: Safely and precisely lifting heavy machinery, large molds, dies, and major components for assembly and maintenance.
- Power Generation Plants: Used for handling turbines, generators, and other heavy equipment during installation and maintenance outages.
- Port and Freight Yards: Efficiently loading and unloading heavy cargo from trucks and railcars in indoor or covered areas.
- Precast Concrete and Stone Yards: Moving heavy concrete sections, granite blocks, and other construction materials with stability and control.
Product Specifications
| Parameter | Specification |
|---|---|
| Rated Capacity | 5t / 10t / 16t / 20t / 32t / 50t (Customizable) |
| Span | 10.5 m to 35.5 m (Customized to facility requirements) |
| Max. Lifting Height | 6 m to 40 m (Customized as per demand) |
| Work Duty | A5–A6 (Medium to Heavy Duty) |
| Lifting Speed | 1–8 m/min (Two-speed or VFD, speed varies with capacity) |
| Trolley Traveling Speed | 2–25 m/min (Two-speed or VFD) |
| Crane Traveling Speed | 20–80 m/min (Two-speed or VFD) |
| Hoist Type | Electric Wire Rope Hoist Trolley or Open Winch Trolley |
| Hoist Motor | Dual-speed or VFD-controlled heavy-duty motor |
| Travel Motors | Dual-speed or VFD-controlled gear motors |
| Control Methods | Cabin Control, Pendant Control, Wireless Remote 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 brand |
| Safety Devices | Overload limiter, emergency stop, redundant brakes, anti-collision system |
| Working Temperature | -25°C to +40°C (Special designs for other environments) |
| Protection Class | IP54 / IP55 or as required |
| Paint/Finish | Industrial anti-corrosion primer and heavy-duty topcoat |
| Steel Grade | Q235B / Q355B Carbon Structural Steel |
| Wheel/End Carriage | Forged steel wheels; Heavy-duty box-section end carriages |
| Rail Size (typical) | P38, P43, QU70, QU80 (Recommended for the application) |
| Braking | Electromagnetic disc brakes and/or hydraulic brakes |
| Limit Switches | Included for hoisting, cross travel, and long travel |
| Documentation | Certificate of Conformity, Test Reports, CE/ISO Certificates |
| Warranty | 1 Year |
| Lead Time | 30–45 days (negotiable for specific configurations) |
Features at a Glance
- Heavy-duty double-girder design for maximum stability and load capacity.
- High-performance electric hoist and trolley for efficient lifting.
- Excellent lifting height and wide span capabilities.
- Two-speed or VFD controls for precise and rapid movements.
- CE-compliant design built for demanding A5–A6 work duties.
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.
