Quarry Southern Africa May 2019 - Page 38

MARKETS The recent orders won by vibrating screen and feeder specialist Kwatani, have cemented a reputation for being one of South Africa’s leading original equipment suppliers (OEM) with a truly cross-commodity footprint. Kwatani’s custom- engineered products are now in some of the world’s largest mines, and many customers have standardised their screens to ensure lowest cost of ownership and high performance, according to general manager sales and service, Jan Schoepflin. While its base and core market are in Africa, the global demand for Kwatani products has grown rapidly. A leading diamond mining company in Russia ordered Kwatani screens at its newest operation and specified Kwatani for future projects; another order from a large South African diamond operator replaced the last of their competitor screens with a Kwatani unit. Schoepflin says this is because they have enjoyed years Cross-commodity success for Kwatani screens A 4.3m Kwatani scalper screen ready for despatch to the customer. without unplanned stoppages by using Kwatani screens. “It has shown that our equipment and service are just as effective in unusually harsh climatic conditions.” At a local brownfield diamond expansion project, the company’s multi-slope banana screens were matched to the available plant footprint, raising throughput from 250 to 500 tonnes per hour and later breaking the mine’s tonnage record. While screening in heavy minerals is Kwatani’s stronghold, the company has moved extensively into coal, supplying the country’s leading coal producer with no fewer than 45 items of large screening equipment, including out-sized 4.3m-wide units. Other recent coal- related orders included run-of-mine screens for a medium-sized coal mine in Mpumalanga. Again, competitor equipment was replaced by custom-designed screens with optimised deck angles, which significantly increased tonnage. The positive results achieved with the Kwatani equipment also led to additional orders for the mine’s expansion.  Sandvik launches next-generation ‘2 Series’ gyratory Sandvik Mobile Crushers and Screens is continuing its ongoing product development with the roll-out of its latest ‘2 Series’ product offering: the new QS332 gyratory cone crusher. This latest addition has been upgraded to encompass the many product refinements of the recently launched QH332 Hydrocone, to improve operation, efficiency, and ease of maintenance. The compact QS332 is targeted at the most demanding of aggregate producers. Featuring the renowned Sandvik CS430 gyratory cone crusher, it is able 36_QUARRY SA | MAY/JUNE 2019 to accept a feed size up to 90% larger than current standard cones. This produces benefits for customers by delivering improved productivity on such applications as Type 1 crusher run, or in primary gravel crushing. One of the special benefits of this new model is its ability to be adapted quickly for operation in open- or closed- circuit configurations. This is achieved using its new optional modular double-deck hanging- screen (DDHS) system: a self-contained finishing screen module that can be added or removed from the plant in less than 30 minutes without the need for any lifting equipment on site. The DDHS allows the plant to produce two screened products and recirculate the oversize back into the feed conveyor for reprocessing. A further benefit of the Sandvik QS332 and DDHS is that it features a patent- pending adjustment system that allows the screen to be quickly reconfigured to produce one single-sized finished product or two sized finished products, depending upon the customer’s demands. The oversize conveyor can be hydraulically rotated for material stockpiling (90 degrees) of up to three products on the ground, or for removal (180 degrees). The tail section can be raised hydraulically to give improved ground clearance for transport when loading or unloading. The Sandvik CS430 cone crusher at the heart of the machine is equipped with a hydroset system that provides closed-side setting (CSS) adjustment at the touch of a button. The automatic setting regulation system not only optimises production, but also keeps track of liner wear, making it easy to plan liner changes and minimise interruptions in production.  www.quarryonline.co.za