A Chinese quarry is using crushing equipment from Sandvik to help meet customer demand.
This leading Chinese aggregate supplier has invested in four CH870 cone crushers supplied by
Zhongshan Xinlong Aggregate is located in Zhongshan City, Guangdong Province, China. From this and other locations, the company acts as a key producer and supplier of high quality aggregates to its customer base located primarily in the Pearl River Delta Area. Its main quarry in the locale is the largest in the area, with more than 150 people being employed.
Due to the large production capacity at the quarry, and the company’s reputation for producing high quality aggregate, the material produced is used in variety of applications. These include concrete as well as in general civil engineering and construction applications. The aggregate is also used by the company itself as it operates in a variety of fields including demolition, civil engineering as well as quarrying.
With a large variety of customers with the aggregate being used for many differing applications, it became clear to the management of the Zhongshan Xinlong Aggregate that its existing aggregate plant was not up to dealing with demand. Too much down time was being experienced, and it was realised that if the company was to install a new 2,000tonnes/hour aggregate plant, which was seen as being required to meet demand, then its locally made cone crushers would also have to be upgraded. In addition to improving productivity, the company appreciated that there were many operational efficiencies to be gained through upgrading its tertiary crushers, as well as environmental benefits through reduced emissions and lower fuel consumption.
In order to acquire a new cone crushing solution Zhongshan Xinlong Aggregate contacted Sandvik Construction in China, which discussed the company’s requirements.
In order to be able to produce the aggregates at 2,000tonnes/hour, Zhongshan Xinlong Aggregate agreed with Sandvik’s proposed solution of 4 CH870 cone crushers. These four units are now helping to produce the required end product fractions of 28-24mm, 24-11mm, 11-5mm and 5-0mm. The CH870 is proving to be highly suitable as its large eccentric throw and high eccentric speed, results in more rock-on-rock crushing in the crushing chamber. This means that the end product possesses a good shape, and much to Zhongshan Xinlong Aggregate appreciation, a major reduction in operational downtime.
Sandvik’s CH870 cone crusher is a good solution for Zhongshan Xinlong Aggregate’s tertiary cone crushing requirements. It has a hydraulically supported main shaft that is supported at both ends and a constant intake opening ensuring operational flexibility. These features suit the CH870 for the company’s high-reduction tertiary application.
Supplied as a complete package, with all functions working together with a motor designed for exacting requirements, its Hydroset system provides safety and setting-adjustment functions, whilst ASRi automatically adapts crusher to feed conditions. Additionally Sandvik is able to offer a selection of crushing chamber options for the CH870, allowing optimisation of the crushing process with a variety of alloys with properties meeting specific needs. This has enabled Zhongshan Xinlong Aggregate’s crushers to be configured to requirements and could meet future customer specifications or feed material changes also.
The upgrade of the Zhongshan Xinlong Aggregate quarry has yet to be completed. This is due to the high demand for its aggregate. However, this has meant that the rest of the plant is proving unable to keep up with the capacity of the CH870, with the crushers processing the aggregate more quickly than they can be fed. It is planned to complete the plant upgrade very soon which will see the CH870’s operating at capacity.
