The QDY series double girder electric overhead traveling ladle crane is engineered for demanding metallurgical operations, including the safe and efficient handling of molten steel in steel mills and foundries. Its robust construction integrates a main beam, connecting beam, long-travel assembly, lifting trolley, and a high-performance hook system with wire rope. The complete setup also features cab controls and a sophisticated electrical management system.
This crane model supports primary hoisting capacities from 5 to 74 tons. Its main hook is specifically designed to lift and transport steel ladles, while the auxiliary hook assists in tasks such as pouring molten metal and managing slag. All key movements—hoisting, trolley traversing, and long-travel—utilize a variable speed control system with a wide 1:10 speed ratio, ensuring precise load positioning. Custom speed configurations are available to meet specific operational needs.
Key Features & Construction Advantages:
Main girders are fabricated using automated welding technology and undergo comprehensive shot blasting (Sa2.5 standard), followed by ultrasonic testing to guarantee structural integrity and a long service life.
Advanced multi-speed control for all major motions enables exceptionally smooth and accurate load handling, which is critical for ladle operations.
A full suite of protective mechanisms is included, such as weight overload protection, phase sequence protection, zero-position safety, and emergency stop functionality.
Redundant safety limits for crane travel and hoisting movements, combined with high-grade polyurethane buffers, provide reliable endpoint protection.
Operational Specifications:
Suitable for ambient temperatures from -10°C to +60°C.
Designed for heavy-duty service, conforming to A6 to A8 work class ratings.
Standard power supply is 3-phase, 380V, 50Hz, with alternative configurations available.
Integrated Safety Systems:
The crane is equipped with multiple, overlapping safety layers, including an overload limiter, emergency stop system, travel limit switches, and comprehensive electrical protections against under-voltage, over-current, and short-circuit faults. This ensures secure operation in the most challenging industrial settings.
The double beam ladle crane serves as a critical handling solution in high-temperature industrial settings, specifically engineered for the demanding conditions of steel production and heavy metal processing. Its robust design ensures reliable performance in challenging environments filled with heat, dust, and frequent operational cycles.
Primary Applications & Suitable Environments:
Steel Mills & Foundries: Essential for transporting molten steel and hot metals within steelmaking workshops. This crane reliably operates under intense heat and in dusty atmospheres where precision and safety are paramount.
Metallurgical Plants & Busy Workshops: Ideal for facilities with high-duty cycles, this crane handles frequent ladle transfers, pouring operations, and other auxiliary lifting tasks in bustling metallurgical plants and casting floors.
Heavy-Duty Industrial Settings: Designed for applications requiring not just strength but also added functionality. Its configuration supports the integration of walkways, built-in lighting, and other specialized equipment for enhanced operational efficiency and safety.
Work Class & Operational Intensity:
A5 Classification: Suitable for workshops with moderate usage frequency, such as machining and assembly plants.
A6 Classification: Applied in facilities with higher operational frequency, commonly seen in metallurgical plants and foundries for auxiliary hoisting operations.
A7 Classification: Built for intensive use in busy industrial settings, including continuous melting and hot metal handling applications where equipment durability and uptime are critical.
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