MechChem Africa July-August 2025

Sandvik Rock Processing Vibrating Screens: custom-designed, locally manufactured Riaan Steinmann, EMEA Operations Director for Screening Solutions at Sandvik Rock Processing, takes MCA on a tour of the South African vibrating screen manufacturing facility in Kempton Park and highlights the company’s global design

and local manufacturing advantage. S andvik Rock Processing is a global company with considerable design and manufacturing expertise. For vibrating screens, the company now owns the IP for three different screen ranges: the SK range from South Africa; the SM range from Australia and the S range of sizing screens from Lahti in Finland. “Sandvik Rock Processing in South Africa is the product designer and IP owner of the SK range, so we support the Australian and Finnish offices for SK screen customisations. Australia supports the SMrange,whiletheLahtiofficeinFinlandsupports our S-range,” says Riaan Steinmann, Sandvik Rock Processing Operations Director for Screening Solutions for the EMEA region. From a manufacturing and onsite service support perspective, he notes that Sandvik Rock Processing’s manufacturing facility in Kempton Park, Johannesburg is capable of producing any vibrating screen in the company’s product range for clients across the EMEA region, while still of fering application specific customisations to best meet individual client requirements. Summarising the three different ranges Sandvik Rock Processing Steinmann says that SK vibrating screens are typically used in the junior to major mining sectors. They consist of a variety ranging from smaller flat deck horizontal screens to large multi-slope (banana) mining screens, griz zly- and scalping screens for ROM applications, as well as a range of vibrating feeders. “These have been developed in South Africa based on extensive engineering expertise fo

cused on quality, efficiency and high throughput. Designed to be fully adaptable, heavy-duty SK equipment is engineered to handle the toughest site conditions and to match specific ore composi tions,” he tells MCA . The SM range has its origin in Australia, he continues. Market leading, the range includes some of the largest vibrating screens in the world and is well known for its high capacity and uptime. “SM screens are widely used in Africa’s biggest mines. The range includes linear grizzly screens, linear flat screens, and multi-slope screens. These are purpose-designed for durability, precision and efficient processing of large volumes of ore, coal, coke, base metals and rock, while delivering indus try-benchmark classification accuracy,” he says. The S Range, which is based on Sandvik Rock Processing’s original vibrating screen design, is a solution for precise sizing of aggregates and is widely trusted by the building industry, quarries and processing plants across the world. “As with all these different designs, the S Range can be fully customised to suit unique application require ments and throughputs,” adds Steinmann. Sandvik Rock Processing’s screening philosophy is centred around optimising both the physical and dynamic design parameters of the screen, while also selecting the most suitable screening media to match the unique characteristics of the ore being processed. This approach positions the company to deliver proven, effective solutions Sandvik Rock Processing’s screen design philosophy

Riaan Steinmann, EMEA Operations Director for Screening Solutions at Sandvik Rock Processing. to the markets, with the screen and the media designs optimised to deliver the best-possible screening outcome. “A recent success involved one of the biggest coal mines in South Africa, which was experienc ing significant pegging issues on a large aper ture screening panel. Pegging was successfully eliminated and the overall screening performance significantly improved by optimising the design and operating parameters of the vibrating screen, while also engineering a media panel to minimise pegging,” he explains. Screen development and FAT testing Steinmann says that Sandvik Rock Processing’s screen design process typically only takes a couple of days from the time a RFQ is received to the delivery of a design proposal and quotation. “This involves gathering mineral processing data from the customer and utilising our proprietary

Left: An SK Feeder undergoes precision welding at Sandvik Rock Processing’s Kempton Park fabrication workshop as part of the assembly process. Right: Two S Range feeders securely strapped and prepared for shipment from the manufacturing facility.

36 ¦ MechChem Africa • July-August 2025