Rockster mobile crusher plays crucial role for new customer in Chongqing, China

Austria-based Rockster says its R1100DS impact crusher has been the perfect contract crusher for Kebao Construction Machinery in Chongqing, China.

Amidst the Daba Shan, Wu Shan and Dalou Shan mountain ranges, the megacity of Chongqing was built on extremely hilly terrain with very steep streets, which is reflected in its name "City of Mountains" (Shancheng). According to Rockster, these circumstances played a major role why the R1100DS crusher is the most optimal for the terrain.

Kebao Construction Machinery Leasing, from district Wanzhou in Chongqing, has been active in construction machinery rental for 10 years and has grown steadily with now 20 employees on board. The company knows the requirements of their customers very well and has a wide range of construction machinery including a jaw crusher and a scalping screen.

Easy transport was an important purchase criterion

For Kebao CEO Ran Maohe, the new crusher had to be easy to transport, reliable and ready to use quickly.

“Thanks to the compactness of our new R1100DS impact crusher, we are able to transport the machine, including the screening system, over our winding mountain roads using an ordinary flatbed truck,” he says. “The crusher set-up time is extremely short due to the saved settings. Our machine operators are also able to operate the crusher very quickly thanks to the intuitive and simple handling. We only rent our machinery with our own trained staff, which of course benefits the efficiency and longevity of our machines."

Hydrostatic drive makes a big difference in China

The fact that these hydrostatically driven machines are extremely easy to handle was another important point for Maohe when choosing the Rockster crusher, the company says. 

“My operators are familiar with this kind of drive system from our excavators and wheel loaders; they are very familiar with hydraulic systems. I particularly like the crusher overload protection,” says Maohe. "The pressure of the hydrostat always adapts to the power requirement of the crusher. This means that there are no blockages due to a lack of drive force and the crushing performance is consistently high."

Excellent performance even on hard granite

According to Rockster, the R1100DS has allowed Kebao Construction Machinery to process 40,000 tons of final material per month.

“At the moment we are mainly crushing very hard granite, basalt and also sandstone. The materials come from the surrounding quarries and are processed to minus 32mm and further screened down to minus 5mm, 5-10mm and 10-32mm. We obtain three perfectly defined product sizes with excellent quality. Our customers are extremely satisfied,” Maohe says.

Expansion of application areas with the mobile impact crusher

The new Rockster crusher is not only used for processing natural stone, but also for recycling demolition debris.

“In recent years, China has generated more than 1.5 billion tons of construction and demolition waste annually, with a recycling rate still below 5 percent. By recycling with a crusher like our R1100DS, most of this construction debris could be reused, the positive effect on the environment and economy would be enormous,” Maohe says.

He emphasizes his plans to additionally specialize in the production of waterproof substructure materials.

“Relevant departments of the Chinese government have passed laws that require construction waste to be properly processed so that it can then be used as recycled building materials, mainly for substructure projects. This is our great opportunity to contribute to our land as owners of such an efficient, productive and cost-effective crushing plant,” says Maohe.