General purpose overhead crane
Double Girder Overhead Bridge Crane
Product Overview
The Weiyuan Double Girder Overhead Bridge Crane is the definitive solution for heavy-duty lifting in the most demanding industrial environments. Engineered for superior strength, stability, and high performance, this crane features a robust double-beam design that enables higher load capacities and wider spans than single-girder alternatives. It is the workhorse of choice for steel mills, large manufacturing plants, power stations, and shipyards. Equipped with a high-performance electric hoist trolley or open winch, this crane ensures the safe, efficient, and precise movement of heavy loads, maximizing productivity and operational safety in your facility.
Product Advantages
Exceptional Strength and Stability
The dual-girder box frame construction provides outstanding torsional rigidity and structural integrity. This robust design minimizes deflection and ensures maximum stability, even when lifting massive loads, making it significantly safer and more reliable for heavy-duty applications.
Optimized Lifting Height
By positioning the hoist trolley to run on top of the two girders, this crane achieves a superior lifting height. This feature is crucial in facilities with limited headroom or where maximizing vertical clearance is necessary to handle oversized components.
High-Performance and Precision Control
Powered by a heavy-duty electric hoist or winch and advanced motor systems, this crane delivers powerful and smooth operation. The inclusion of optional Variable Frequency Drives (VFDs) provides precise, stepless control over all movements, reducing load swing and allowing for the accurate and safe positioning of critical components.
Engineered for Durability and Longevity
Constructed from high-grade Q235B or Q345B steel and equipped with world-class components from brands like Siemens and Schneider, this crane is built for heavy-duty work cycles (A5-A8). Its robust design ensures a long service life with minimal maintenance, even in the harshest industrial environments.
Comprehensive Safety Systems
Safety is fundamental to our design. The crane comes equipped with a full suite of advanced safety features, including overload protection limiters, emergency stop systems, dual travel limit switches, and a high-performance braking system to ensure fail-safe operation.
Application Scenarios
Heavy Manufacturing and Assembly Plants
Ideal for lifting and moving large machinery, heavy engines, turbines, and massive fabricated components. Its precision control is essential for complex assembly processes in sectors like automotive, aerospace, and heavy equipment manufacturing.
Steel Mills and Metal Processing
Perfectly suited for handling steel coils, slabs, ladles of molten metal, and scrap. The high capacity and robust design can withstand the harsh, high-temperature conditions of the steel industry, from foundries to finishing mills.
Power Generation and Energy Sector
An indispensable tool for maintenance and operations in power plants. It is used for safely lifting and positioning heavy components like generators, turbines, and transformers, ensuring operational efficiency and safety.
Warehousing and Large-Scale Logistics
Provides efficient handling of heavy and oversized goods in large warehouses and distribution centers. It can easily manage large containers, molds, and heavy pallets, optimizing storage and logistics workflows.
Product Specifications and Dimensions
| Specification | Parameters |
|---|---|
| Lifting Capacity | 5 Ton – 550 Ton (Customizable) |
| Span Coverage | 10.5m – 31.5m (Customizable) |
| Lifting Height | Up to 50m (Customizable) |
| Material | High-Strength Q235B / Q345B Steel |
| Work Level | A5, A6, A7 (Heavy to Severe Duty) |
| Hoisting Mechanism | Electric Wire Rope Hoist Trolley / Open Winch Trolley |
| Crane Travel Speed | 20-45 m/min (VFD control available) |
| Control Method | Cabin Control / Pendant Control / Wireless Remote Control |
| Power Supply | 380V/415V/440V, 50/60Hz, 3-Phase or Customized |
| Main Electric Parts | Schneider, Siemens, or equivalent reputable brands |
| Operating Temp. | -25°C to +40°C |
Features at a Glance
✓ Heavy-Duty Capacity: Designed for loads from 5 tons up to 550 tons.
✓ Superior Stability: Dual-girder design ensures minimal sway and maximum rigidity.
✓ Optimized Lifting Height: Hoist runs on top of the beams for increased vertical clearance.
✓ Customizable Dimensions: Span and lifting height are engineered to fit your specific facility.
✓ Advanced Hoisting Options: Choose from a high-performance hoist trolley or a powerful open winch.
✓ High-Duty Performance: Rated for heavy (A5) to severe (A7) industrial service.
✓ Multiple Control Options: Cabin, pendant, and wireless remote controls available for safe operation.
FAQ
Q: When should I choose a double girder crane over a single girder crane?
A: A double girder crane is the superior choice when you need to lift very heavy loads (typically over 20 tons), require a very wide span, need a high lifting height, or operate in a high-frequency, heavy-duty work environment (A5 work duty or higher).
Q: What is the difference between a hoist trolley and an open winch trolley?
A: A hoist trolley is a standard, compact unit suitable for most applications up to a certain capacity. An open winch trolley is a more robust, custom-built system designed for extremely heavy loads, higher lifting speeds, and severe-duty applications (A6-A8). It also offers easier access for maintenance.
Q: Is a cabin control necessary for this crane?
A: A cabin control is highly recommended for cranes with long travel distances, high speeds, or those operating in harsh environments like steel mills. It provides the operator with a safe, climate-controlled vantage point for optimal visibility and control over all crane movements.
Q: Can this crane be installed in my existing building?
A: Yes, provided the building’s support structure (columns and runway beams) is professionally verified to safely handle the loads imposed by the crane. Weiyuan provides all the necessary wheel load and structural data to your building engineer for this critical assessment.
Q: How does Weiyuan ensure the quality and safety of its double girder bridge cranes?
A: As a manufacturer with nearly 40 years of experience, Weiyuan adheres to a strict ISO-certified quality management system. Every crane is engineered by experts, fabricated from certified steel, and equipped with components from world-class brands. Before shipment, each crane undergoes rigorous inspection and full-load testing to guarantee it meets all international safety and performance standards.
