HYDRAULICS 16 HYDRAULICS & PNEUMATICS Octoberr 2025 www.hpmag.co.uk Roth Hydraulics expands internal machining capacity for piston accumulators Roth Hydraulics has significantly enhanced its capacity for the internal machining of piston accumulators. Through a comprehensive modification of an existing honing machine, the company can now process cylinder tubes with lengths of up to ten metres and diameters reaching 560 millimetres. “This will strengthen our vertical integration, improve quality assurance and increase production efficiency at the same time,” says Managing Director Frank Fuchs. Previously, the maximum workpiece length was five metres. With the new machine configuration, Roth Hydraulics has effectively doubled this capacity—a clear advantage for customers in the production of large cylinders and specialised applications. Honing the inner surfaces is one of the most decisive quality characteristics in the manufacture of piston accumulators. It exerts a crucial influence on functionality, service life, and the sealing performance of the accumulator. With the expanded machine, Roth Hydraulics ensures that this sensitive process step can now be carried out entirely in-house— independently, with assured quality, and with maximum flexibility. Another clear benefit: the honing work previously performed externally often resulted in extended cycle times and higher transport costs. By bringing this process inhouse, Roth Hydraulics now achieves significantly shorter throughput times while simultaneously reducing logistical expenses. This not only conserves resources but also supports the company’s broader sustainability objectives. The advanced honing machine features state-of-the-art control technology capable of automatically detecting shape deviations, such as bottlenecks, and adjusting the process accordingly. This guarantees a consistently uniform, highprecision internal surface—even for components with complex geometries. In addition, Roth Hydraulics continues to operate a second honing machine at the same site, which can be used in parallel to further enhance capacity and efficiency. Even after machining, the company’s quality standards remain uncompromisingly high: final inspections are conducted by trained specialists using precision measuring instruments, taking component temperature into account to ensure absolute accuracy and reliable results. “With this investment, we are offering our customers significant added value and also making an important contribution to greater sustainability in our processes,” emphasises Frank Fuchs. For further information please visit: www.roth-industries.de
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