80/20 Ton Double Girder Overhead Crane | Specialized Lifting Solution for Metallurgical Plants

As a pioneer in the design and manufacturing of lifting equipment in Vietnam, VINALIFT is proud to be the supplier of the 80/20 ton double girder overhead crane system for the Hoa Phat Dung Quat Steel Integrated Complex. Specifically engineered to withstand continuous heavy-duty operations in harsh environments, this product strongly affirms VINALIFT’s technical capability and commitment to international quality standards for the heavy industry.

1. Project Overview & Technical Challenges

The 80/20 ton double girder overhead crane manufactured by VINALIFT is installed and operated at the expanded slag annealing area, HRC1 plant of the Hoa Phat Dung Quat Steel Complex.

The specific characteristic of the steel slag annealing area is an extremely harsh working environment: ambient temperatures reaching up to ≤60°C, heavy dust density, and immense thermal radiation. To overcome these conditions, VINALIFT’s engineering team calculated and applied the most stringent design standards. The crane integrates a specialized cooling system and multi-layer protection for all electrical, electronic, and mechanical components, ensuring durable and uninterrupted operation under the A6M6 duty cycle (ISO standard).

2. Core Technical Specifications – VINALIFT 80/20 Ton Overhead Crane

The crane is engineered with an optimized technical parameter range to facilitate heavy-duty material lifting processes in steel mills:

Equipment Type:

• Double Girder Overhead Crane

Lifting Capacity:

• Main hook 80 tons / Auxiliary hook 20 tons

Span:

• 19 meters

Lifting Height:

• 20 meters (for 80T hook)
• 24 meters (for 20T hook)

Duty Cycle (ISO):

• A6M6 – Heavy-duty, continuous operation frequency.

Operating Speeds:

• Hoisting/Lowering 80T hook: 0.95 ~ 9.5 m/min (Inverter controlled)

• Hoisting/Lowering 20T hook: 0.93 ~ 9.3 m/min (Inverter controlled)

• Crab Travel (Trolley): 38 m/min

• Crane Travel (Bridge): 77 m/min

3. Core Structure & Integrated Equipment System

The outstanding stability of the 80/20 ton overhead crane relies on the rigorous selection and synchronous integration of drive mechanisms and electrical equipment from world-leading brands:

Mechanical Drive System:

Motors: Utilizing high-capacity, heat-resistant motors from reputable brands such as JiaMuSi, WuXi, Shanghai, or ChangJiang.

Gear Reducers: Carefully calculated transmission ratios (i) to optimize torque output.

• Main hoist mechanism: QY3D-560-45-IXH (i=45)
• Auxiliary hoist mechanism: ZQA750-40.17-7H (i=40.17)
• Crane travel mechanism: ZQA500-20.49-1 (i=20.49)
• Crab travel mechanism: JSC600-46.7-6 (i=46.7)

Electrical & Control System:

• Stepless Speed Control: Utilizing ABB or Siemens Inverters for all mechanisms (hoisting and traveling), enabling soft starts, smooth operation, and precise load positioning.

• Automation: Integrated Siemens PLC and HMI screens, allowing real-time parameter monitoring.

• Safety Switchgears: Sourced from global leaders like Siemens, ABB, or Schneider.

• Cabling: Specialized heat-resistant and wear-resistant electrical cable systems from Hunan Hualing, Anhui Huaxing, KHKT Basheng Yuandong, and Jiangsu Shangshang.

4. Safe Operation System in High Thermal Radiation Environments

Absolute safety for operators and equipment is the top priority in VINALIFT’s design philosophy.

Specialized Control Cabin:

Due to ambient temperatures in the slag annealing area reaching 60°C, the cabin is specially engineered by VINALIFT with high-intensity thermal insulation, a sealed dust-proof mechanism, and a specialized industrial air conditioning system, creating a safe and comfortable working environment for the operator.

Multi-layer Protection System:

• High-precision overload protection devices (from Yuyao Pacific, Yoyao General, Ningbo Zhonghe).
• Application of DT35 laser optical sensors (Sick – Germany) combined with proximity sensors to monitor travel limits, providing highly effective anti-collision measures for both the crane and crab travel mechanisms.
• The travel system utilizes specialized QU80 heavy-duty crane rails, ensuring maximum load-bearing capacity and superior vibration resistance.

5. Professional Warranty & After-Sales Service

Understanding the critical importance of maintaining continuous production operations in heavy industrial plants, VINALIFT provides professional after-sales and maintenance services with the following commitments:

24/7 Technical Support

• A dedicated team of experienced engineers is always ready to consult and troubleshoot.

Genuine Replacement Parts

• A comprehensive inventory of spare parts ensures the rapid supply and replacement of mechanical and electrical wear components, significantly minimizing downtime.

Periodic Maintenance

• Providing standard inspection and maintenance service packages to maximize equipment lifespan and guarantee long-term operational safety.

READ MORE: VINALIFT’S 24/7 MAINTENANCE SERVICES

VINALIFT – The Trusted Partner of the Heavy Industry

The 80/20 ton double girder overhead crane system at the Hoa Phat Dung Quat project is a clear testament to VINALIFT’s profound capability in providing non-standard steel structure and lifting equipment solutions. We are fully committed to delivering products that strictly comply with international standards such as ISO 9001:2015 and FEM 1.001, proudly accompanying the sustainable development of EPC contractors and investors globally.

If you are a Client/Partner seeking expert consultation, design, and manufacturing of heavy-duty overhead and gantry crane solutions for metallurgical plants, thermal power plants, hydroelectric plants, or seaports, please contact VINALIFT’s engineering team directly for in-depth support..

CONTACT VINALIFT'S CONSULTING EXPERTS

 

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