Zoomlion Excavator Wins Innovation Award
Zoomlion Heavy Industry Science & Technology has been recognised for developing a 21-ton crawler hydraulic excavator engineered specifically for the extreme heat, dusty environments, and prolonged breaker operations commonly encountered in the Middle East. The excavator, developed by a team led by Wu Baoshuo, Deputy Director of the Medium and Large Excavator Research Institute at Zoomlion Earthmoving Machinery Company, received an Outstanding Flagship Product Award at the company’s Seventh Science and Technology Innovation Conference.
Designed for Middle Eastern markets, the excavator is built to support municipal construction, utility projects, and mining operations, where temperatures can exceed 50°C and hydraulic breaker work can account for more than 70% of operating time.
“Customers in the Middle East do not simply need another excavator. They need one that can keep working,” said Wu. “The conditions are very different from conventional earthmoving, so the machine has to be developed around the realities of the local jobsite.”
Wu led the project from initial design and testing through optimization and mass production. One of the team's most significant engineering challenges was managing heat during prolonged breaker operations. The combination of continuous breaker work and extreme ambient temperatures placed substantial demands on the excavator’s cooling system.
To address this challenge, the team redesigned the airflow layout and optimized the cooling core to improve heat dissipation. Engineers also strengthened critical structural components and refined weld designs to reduce stress caused by repeated impact loads. To enhance dust protection, improvements were made to the air intake system and cab sealing.
Each enhancement was tested extensively at customer worksites across the Middle East. The team deployed sensors to collect performance data and completed thousands of breaker operation cycles to continuously refine and validate the design.
The project involved close collaboration across product development, testing, manufacturing, technical support, and overseas operations teams. In addition, Zoomlion’s testing center at its headquarters supported three months of high-frequency breaker durability testing to ensure long-term reliability under demanding conditions.
The development process required multiple rounds of testing, evaluation, and refinement. When an early cooling system design required further adjustment, the team relied on field data and engineering analysis to optimize the solution and continue advancing the project.
“Innovation always comes with lessons,” Wu said. “The company’s support gave us the confidence to keep solving tough engineering challenges.”
For Wu and his team, the award represents years of customer-focused engineering and product development.
“It is an honor, but not the finish line,” he said. “We will keep learning from the jobsite and building equipment customers can rely on.”
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