Automatic tool change to increase coolant pressure in the turning center

**Challenge: Increase the number of unmanned tools in the turning center and eliminate chip cleaning problems.** **Solution: Implement automatic tool change to boost coolant pressure in the turning center.** Turning centers are a cornerstone of modern manufacturing, but they often suffer from long downtimes due to manual tool changes. Additionally, traditional coolant systems rely on passive flow, which can lead to inefficient chip removal and increased heat buildup. To address these issues, development efforts focus on reducing both planned and unplanned downtime, making the machines more efficient and reliable. Although automatic tool changing is now standard in machining centers, it's still not widely adopted in turning centers. One key reason is the lack of a universal shank interface that allows for quick, automated tool changes. However, advancements like the Y-axis, double turret, and counter-spindle have significantly improved the efficiency and flexibility of horizontal turning centers. Meanwhile, vertical turning centers are also evolving, offering automatic tool change options to meet growing demands for unmanned operation and versatility. The future of turning centers will likely include standardized toolholder interfaces and automatic turrets. This shift is driven by the need for greater efficiency, reduced moving parts, and longer mast capabilities without limiting turret positioning. Tool development and process improvements go hand in hand, with manufacturing continuously pushing the boundaries of technology to lower costs and improve profitability. High-pressure coolant systems are now common in modern machine tools, but their impact on the cutting process is often underutilized. Systems like CoroTurn HP operate at pressures between 30 to 80 bar, improving chip evacuation, reducing heat, and enhancing safety during unmanned machining. For materials that require higher chip-breaking performance, pressures up to 150 bar may be necessary. This not only improves chip management but also reduces cleaning time and enhances system reliability. To support these high-pressure systems, a new sealing mechanism has been developed that can handle pressures of at least 150 bar. It works well with both manual and automatic clamping systems, ensuring compatibility with existing cutting tools and adapters. The consistency of the interface makes this solution ideal for upgrading current machines without major overhauls. The Coromant Capto modular system has long been used for manual tool changes, but its potential for automatic tooling is now being explored. Future developments may see this system become the standard for automatic tool change in turning centers. Stable chip control is essential when working with difficult-to-machine materials. Higher coolant pressures—above the typical 80 bar—can make a big difference in chip management, improving both the cutting process and the efficiency of chip conveyors. Vertical turning centers are also moving toward automation. This trend is driven by the need for shorter tool lengths and better efficiency in unmanned operations. The Coromant Capto system aims to provide a universal interface for both static and driven tools, setting a new standard for automatic tool change. In conclusion, reducing tool change times and optimizing coolant delivery in the cutting zone will make machine tools—especially turning centers—more competitive in the coming years. With continuous innovation, the future of machining looks brighter than ever.

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