News

Sandvik’s new HSI crusher debuts in China

Guangdong-based Long Ying Construction Engineering Ltd has become the first customer in China to purchase Sandvik Mobile Crushers and Screens’ revolutionary QI442 HS. This advanced HSI (Horizontal Shaft Impact) crusher is able to provide highly accurate material reduction at high rates of throughput. Additionally, through the use of Sandvik’s advanced modular hanging screen, it is also able to produce up to three products where and when required.

The QI442 HS was supplied to Long Ying by Sandvik Mobile Crushers and Screens authorized distributor, POTA Environmental Technology (Guangdong) Co Ltd. It comes equipped with a pre-screen to ensure maximum scalping capability and to prevent any undersize material passing through the impactor, maximising throughput and reducing wear costs. This also allows a specific sized product to be produced from the natural fines conveyor. The pre-screen also has a choice of grizzly or punch plate top deck and mesh bottom, providing the flexibility to suit any application whilst an underpan feeder located beneath the impactor protects the main conveyor belt from the material exiting the impact crusher. 

The newly developed CI621 Prisec Impactor includes a new patented rotor locking and positioning device for controlled rotor movement during maintenance, which enhances safety and meets legislation requirements. With a host of innovations for improved efficiency and greater safety during maintenance, the QI442 HS is able to operate in either primary or secondary crushing modes. Additionally, the two hydraulically assisted curtains can be readily adjusted to produce a wide range of high quality product sizes.

One of the benefits incorporated into the QI442 HS is the optional double-deck modular hanging screen system. This system is interchangeable and offers the flexibility for the crusher to operate in open or closed circuit. The unique design enables set up in less than 30 minutes and can be fitted without the use of additional lifting equipment. The patent pending hanging screen option delivers multi-functionality as a 1-, 2- or 3-way split screener, as well as a highly productive and efficient impact crusher.

The double deck hanging screen enables the machine to produce two screened products and recirculate the oversize back into the feed conveyor. The oversize conveyor may be hydraulically rotated for material stockpiling (90 degrees) of up to three products on the floor, or removal (180 degrees). The tail section can be raised hydraulically to give improved ground clearance for transport when loading or unloading.

In addition to the other features found on the QI442 HS, it also comes with Sandvik My Fleet remote monitoring system as standard. My Fleet has been developed to help customers know exactly how their equipment is being utilized. Through the monitoring of a wide array of parameters, this facilitates accurate production forecasting, ensuring that the most efficient use is obtained from equipment, thereby maximizing return on investment.

Long Ying is now using its Sandvik crusher to crush mainly construction and demolition waste with a maximum feed size of 800mm, producing two core products: 0-10mm and 10-40mm, at an average production rate of 200tph. The latter figure, and given the ‘difficult’ nature of the material, exceeded Long Ying’s expectations. Furthermore, although initial investment costs were higher for the QI442 HS when compared with local or other EU manufacturers, the total production cost proved to be significantly lower, making the return on investment attractive, reckons Sandvik.

Got a news story? Email news@earthmoversmagazine.co.uk.