Recoiling Machine Unit: Advanced Tension Control for Industrial Paper and Steel Processing This high-performance recoiling machine unit is engineered for precision winding, unwinding, and tension management across diverse industrial applications. Designed to handle materials like pad paper, steel coils, and other roll-based substrates, it ensures consistent quality, enhanced productivity, and reduced downtime in manufacturing environments worldwide. Key Features: - Dual-head winding mandrel with air expansion shafts on both drive and working sides for seamless setup and material handling - AC motor-driven system enabling precise speed and torque regulation during unwinding, pulling, and rewinding operations - Integrated photoelectric sensor for real-time detection of paper breakage or web discontinuity - Adjustable support arm for easy roll loading and unloading, supporting widths from 650 mm to 1350 mm and sleeve lengths up to 1350 mm - Siemens S7-1500 PLC-based control architecture (model 1518-4PN/DP CPU) for robust logic, sequence, position, and interlock control - WINCC HMI interface offering comprehensive monitoring, data analysis, parameter configuration, and process optimization capabilities Detailed Description: The recoiling unit integrates advanced automation technology to deliver stable tension control throughout the entire winding cycle. Its dual mandrel design allows for efficient changeovers between rolls without interrupting production flow. The air-expansion mechanism enables quick and secure mounting of different core sizes, while the photoelectric switch enhances operational safety by immediately detecting any web rupture—minimizing waste and preventing damage to downstream equipment. With a maximum roll width of 1350 mm and customizable sleeve length, this machine supports a wide range of material formats used in packaging, printing, metal processing, and more. The Siemens-based control system ensures reliable performance under varying load conditions, while the intuitive WINCC Human-Machine Interface empowers operators to monitor real-time metrics such as tension profiles, motor status, and production throughput—all accessible via an interactive touchscreen panel. Applications Across Industries: Ideal for industries requiring high-speed, high-precision rewinding, including converting plants, corrugated box manufacturers, steel mills, and flexible packaging producers. This unit excels in applications involving aluminum foil, plastic film, paperboard, and thin gauge steel coils where consistent tension and accurate spooling are critical. It also serves well in textile and nonwoven fabric processing, where maintaining uniform roll quality impacts final product integrity. User Feedback: Operators report significant improvements in roll consistency, reduced manual intervention, and faster setup times compared to older models. Maintenance teams appreciate the modular design and clear fault diagnostics provided by the Siemens PLC and WINCC system, which streamline troubleshooting and reduce mean time to repair (MTTR). Many users highlight the ease of integrating the unit into existing production lines due to its standardized communication protocols and scalable architecture. Frequently Asked Questions: What makes this recoiling machine suitable for both paper and steel applications? Its adjustable tension control, dual mandrel system, and robust motor drives allow it to adapt to different material properties and thicknesses—making it versatile for both soft media like paper and rigid materials like steel coils. How does the HMI system enhance operational efficiency? The WINCC interface provides live visualization of key parameters such as motor current, tension levels, and roll diameter, enabling proactive adjustments and predictive maintenance strategies that improve uptime and reduce waste. Is the machine compatible with existing automation systems? Yes, the use of Siemens S7-1500 PLC ensures compatibility with most industrial networks (PROFINET, PROFIBUS), allowing smooth integration into modern factory automation setups. Can the tension be adjusted dynamically during operation? Absolutely—the system offers closed-loop tension control that adjusts automatically based on real-time feedback from sensors, ensuring optimal performance even when changing roll diameters or material types.
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