At the beginning of the modernisation programme, planned to be implemented over two years, a decision had to be made about the right blast wheel model.
Following a product demonstration and detailed cost-benefit calculations, the team went for TITAN 15.3 blast wheels from Wheelabrator. Subsequently, all 14 existing blast wheels were replaced with TITAN wheels.
Less wear thanks to tempered tool steel, faster and easier maintenance, as well as increased reliability of all three machines would improve uptime markedly. Standardising the blast wheel would also, according to Wilfried Gast’s plan, vastly improve spare parts management (and storage!) and allow his team to carry out smaller repairs in-house.
Andreas Harpers, product expert for wheelblast technology at Wheelabrator Plus, explains: “Together with the team at Still, we analysed weaknesses and problems of the existing equipment. Some of the issues we discovered were quite severe: vibrations from the blast wheels had already caused cracks to form along the walls of the blast chamber of the youngest machine.
The challenge then was to find exactly the right blast wheel model, one that would run smoothly and achieve the best blast results across all three machines. But it was also important not to lose sight of overall equipment performance, which is why we adjusted abrasive feeds on the machines as part of the upgrade.”