General purpose overhead crane
Double Girder Overhead Crane
Product Overview
The Double Girder Overhead Crane is a high-capacity, heavy-duty lifting solution designed for exceptional stability and performance across wide spans. Featuring two robust main girders, this crane provides a rigid and secure platform for handling heavy and oversized loads with minimal deflection. It comes equipped with a high-performance electric hoist trolley that travels on top of the girders, maximizing lifting height and operational efficiency. With versatile capacity options including 10, 35, and 40 tons, this crane is an essential tool for demanding industrial applications.
Product Advantages
- Exceptional Stability: The dual-girder design offers superior torsional rigidity, making it extremely stable when lifting heavy or off-center loads. This is critical for safety and precision in heavy-duty environments.
- Wide Span Capability: This crane is engineered to operate effectively over large spans (up to 35.5m or more), providing comprehensive lifting coverage in large workshops, warehouses, and outdoor yards.
- Maximum Lifting Height: Because the hoist trolley runs on top of the bridge, this design provides significantly more hook height than single girder cranes, allowing you to utilize your facility’s full vertical space.
- High Performance and Control: Engineered for efficiency with faster travel speeds, this crane can be equipped with two-speed controls or optional Variable Frequency Drives (VFDs) for smooth, shock-free movements and precise load positioning.
- Built for Durability: Designed for A5-A6 work duties, this crane is constructed from high-strength steel and premium components to ensure reliable, long-term performance in demanding industrial cycles.
Application Scenarios
- Heavy Manufacturing: Ideal for moving large fabrications, machine tools, and heavy components in steel plants, shipbuilding facilities, and heavy equipment assembly.
- Power Generation: Safely handles large turbines, generators, and other critical equipment during installation, maintenance, and repair operations.
- Precast Concrete and Stone Industry: Provides the stability needed to move large, heavy concrete sections, marble blocks, and granite slabs without damage.
- Large Warehouses and Storage Yards: Efficiently manages heavy inventory, large dies, and bulky materials in facilities with wide bays and high ceilings.
- Aerospace and Automotive Assembly: Offers the precise, stable control required for lifting and positioning large, high-value components like fuselages or vehicle chassis.
Product Specifications
| Parameter | Specification |
|---|---|
| Rated Capacity | 5t / 10t / 35t / 40t (Other capacities customizable) |
| Span | 10.5 m to 35.5 m (Customized to your facility) |
| 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 by 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 | Heavy-duty dual-speed or VFD-controlled motor |
| Travel Motors | Dual-speed or VFD-controlled gear motors |
| Control Methods | Wireless Remote Control, Pendant Control, Cabin Control (Optional) |
| Power Supply | 3-Phase 380V/400V/415V/440V, 50/60Hz |
| Control Voltage | 24V / 36V / 48V (Safe control voltage) |
| Electrical Components | Schneider, Siemens, or equivalent premium brand |
| Safety Devices | Overload limiter, emergency stop, redundant braking system, anti-collision |
| Working Temperature | -25°C to +40°C |
| Protection Class | IP54 / IP55 |
| 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-girder end carriages |
| Rail Size (typical) | P38, P43, QU70, QU80 (Recommended for the application) |
| Braking | Electromagnetic and/or hydraulic brakes for all movements |
| Limit Switches | Included for all hoisting and travel motions |
| 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
- Robust double-girder design for superior stability and wide-span capability.
- Versatile capacities available, including 10, 35, and 40 tons.
- Maximizes lifting height, ideal for facilities with high clearance.
- Choice of two-speed or VFD controls for enhanced performance and precision.
- CE-compliant design, fully customizable to meet your specific needs.
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.
