Modern Mining February 2019


Screen specialist has a cross-commodity ‘footprint’

The recent orders won by vibrating screen and feeder specialist Kwatani have cemented its reputation as the leading South African original equipment sup- plier (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 stan- dardised on their screens to ensure lowest cost of ownership and high performance, according to Jan Schoepflin, General Manager Sales and Service. “While our base and core market are

cally adapts crushers to variations in feed conditions. The Sandvik CH800i series comes with a range of upgrades, including a 65 % stron- ger main shaft, and top and bottom shells that are up to 50 % stronger than previous models, offering more reliability and higher availability. “New digital technologies will trans- form the way mines and quarries work. My Sandvik is the first major step in gaining insights into productivity and predictive maintenance that will drive our industry forward. It’s great to offer our customers a service that will truly make a difference to their profitability,” comments Sandvik’s in Africa, the global demand for Kwatani products has grown rapidly. A leading dia- mond mining company in Russia is very pleased with Kwatani screens at their new- est operation and specified Kwatani for future projects,” Schoepflin says. In another order from a large diamond operation, this time in South Africa, the customer also replaced the last of their competitor screens with a Kwatani unit. Schoepflin say this is because they have enjoyed years without unplanned stop- pages 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 expan- sion project, the company’s multi-slope banana screens were matched to the avail- able plant footprint, raising throughput from 250 to 500 t/h 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 screen-

Mats Dahlberg, Vice President Lifecycle Service, Stationary Crushing and Screening. CH800i has bolted rather than welded top and bottom shell liners to reduce main- tenance time and add greater safety. Since no welding is needed when changing lin- ers, the process is up to 90 % faster. The new CH800i crusher system can be purchased as a completely new crusher or customers can choose a Sandvik Reborn solution, replacing an existing crusher with a new one and re-utilising existing auxilia- ries and infrastructure. This plug-and-play installation minimises disruption and maxi- mises productivity, while offering up to 40 % cost savings compared to a complete crusher system. Sandvik, tel (+21 11) 929-5300 The platinum sector is also keeping Kwatani busy, not just in South Africa but over the border in Zimbabwe too. A recent turnkey solution focused on the platinum by-product chromite, where the com- pany supplied a complete solution which included feeder, dryer and screen to treat chromite of 45 micron size at 15 tonnes per hour. Kwatani, tel (+27 11) 923-9000, website: ing equipment, including out-sized 4,3 m 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. At Africa’s largest iron ore mine, the company has recently completed two projects, renewing existing equipment with up-to-date solutions and replacing 24 items of competitor equipment.

A 4,3 m Kwatani scalper screen ready for despatch to the customer.

A revolution in connected crushing from Sandvik The Sandvik CH800i series of connected cone crushers is the first to offer intelligent crushing based on actionable information via the My Sandvik portal. This enables managers and operators to make decisions based on facts, and see areas for improve- ment directly, increasing uptime and availability.

My Sandvik is the latest innovation in Sandvik crushers. Other automation features continuously measure and com- pensate for crusher liner wear, while Hydroset™ and the electric dump valve automatically provide overload protec- tion to let tramp iron or other uncrushable material pass through. ASRi™ automati-

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48  MODERN MINING  February 2019

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