MechChem Africa July-August 2024

⎪ Minerals processing and materials handling ⎪

Sandvik builds local production of screening media Sandvik Rock Processing is scaling up its South African manufacturing capacity for screening media. Riaan Steinmann of Sandvik Rock Processing, explains. S andvik Rock Processing is making significant investments in its local screening media manufacturing capabilities, to build levels of after market support for its growing capital equip ment portfolio. casting table, and then filling them with hot coat polyurethane mixing systems using the dispenser casting hose.”

This allows the machine to produce parts such as non-standard-sized screening panels and sideliners, wedges, discharge liners and protector liners – providing flexibility in meeting a diverse range of products even at low volumes. He highlights that Sandvik Rock Processing regards innovation as a strategic cornerstone, using the discrete element method (DEM), for instance, to analyse mate rial flow and optimise the selection of aperture size and type for each application. “Our screening philosophy is that the optimal design and selection of screening media panels should cater to the distinctive characteristics of the ore being treated,” he explains. “This in turn needs to align with the vibrating machine’s physical and dynamic parameters. It is our strong portfolio in both vibrating screen equipment and screening media that puts us in the best position to provide tested solutions to the market.” Sandvik Rock Processing R&D teams un

According to Riaan Steinmann, EMEA Operations Director Screening Solutions at Sandvik Rock Processing, the company’s local and global R&D teams are developing exciting new product offerings. “Our local screening media manufacturing operations at Crown Mines in Gauteng align with our global procurement focus on sourcing raw materi als,” says Steinmann. “This makes it possible to use our own unique material formulations to manufacture world class screening media products.” Together with its specialised materials, Sandvik Rock Processing also optimises each screening media panel design to maximise wear life and efficiency, he says. The company has developed panel load limit calculations to ensure structural integrity while avoiding over-designing. “Optimising our screening media allows us to streamline our vibrating screen designs, leading to overall mass and cost reductions,” he explains. “As an essential part of our vibrating equipment offering, our screening media offer optimal performance at the lowest overall cost.” He notes that the open-case polyurethane dispensing machine at Sandvik Rock Processing’s Crown Mines facility is specially designed in a flexible ma chine configuration – to produce a range of polyurethane products of the highest quality and at the most efficient rate. “Various non standard polyurethane parts can be made in an open-mould casting process,” says Steinmann. “This is achieved by placing moulds on a heated

dertake continuous research using data from on-site performance. These studies investigate efficiencies and wear characteristics of screen ing media products under various operating conditions – and build the findings back into new designs and products. The local production of screening media by Sandvik Rock Processing promises to deliver shorter lead times and lower transportation costs for customers. www.rockprocessing.sandvik

Pump solutions for dosing applications

VERDER PUMPS SOUTH AFRICA (PTY) LTD TEL +27 (0)11 704 7500 MAIL info@verder.co.za WEB www.verderliquids.co.za

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05-07-2024 12:36

July-August 2024 • MechChem Africa ¦ 21