NEWS & EVENTS
Aogang Machinery Co., Ltd.
Aogang Machinery Co., Ltd.
Dec. 03, 2025
The Cut-to-Length Line (also known as Shearing Line or CTL, Cut-to-Length Line) is a core automated solution in the field of metal sheet processing. Its main function is to efficiently and precisely convert large rolls of metal materials (such as steel, aluminum, or stainless steel coils) into rectangular sheets of predetermined length and width through a series of carefully coordinated processes.
A Cut-to-Length Line is more than just a machine—it is a complete system integrating uncoiling, leveling, cut-to-length feeding, shearing, and stacking. It transforms the traditional single-sheet shearing method, which is costly and inefficient, into a continuous automated production process. This makes it a key equipment solution for industries such as sheet metal processing, home appliances, and automotive components, helping to reduce costs, improve consistency, and enhance competitiveness.
The core of a high-performance Cut-to-Length Line lies in dynamic precise braking and separation, ensuring that high-speed sheets stop instantly at the preset position, are securely clamped, and then sheared without slipping. A typical workflow includes:
Heavy-duty hydraulic or mechanical uncoilers carry and unwind the metal coils, providing a stable material source for continuous production.
Residual stress in the coil can cause bending or warping. Sheets pass through multi-roll precision levelers (usually 9–21 rolls), which repeatedly bend the material to eliminate internal stress, achieving high flatness and ensuring the quality of the final product.
When the material width exceeds the required width, a rotary slitter can pre-slit the sheet longitudinally into narrower strips, improving material utilization and reducing edge waste.
High-rigidity feeding rollers driven by servo motors accurately transport the sheet, while high-resolution encoders or laser measuring systems provide real-time closed-loop control, achieving a length accuracy of ±0.5 mm or higher.
When the sheet reaches the preset length, a hydraulic or mechanical shear cuts instantly. The cut edge is smooth, burr-free, and of excellent cross-sectional quality.
Cut sheets are transported out by the conveying system. The stacking table automatically aligns sheets using magnetic alignment, air separation, or vacuum suction, counts and separates stacks, facilitating subsequent handling and processing.
High Efficiency: Continuous automated production with line speeds up to 130 m/min, several times faster than single-sheet shearing, significantly shortening delivery cycles.
High Precision: Servo cut-to-length system ensures consistent length and diagonal dimensions, meeting strict tolerances required by high-end manufacturing.
High Quality: Leveling ensures excellent flatness, and shearing produces vertical, burr-free edges suitable for high-standard products.
High Material Utilization: Cut-to-length combined with slitting enables optimized nesting, reducing material waste by 3–8%.
Automation and Intelligence: Reduces reliance on skilled operators; one person can operate the entire line, easily integrating into intelligent manufacturing systems.
Sheet Metal Processing: Enclosures, elevator walls, power distribution equipment housings
Home Appliance Manufacturing: Side panels, back panels, and internal components of refrigerators, air conditioners, washing machines, microwaves
Construction: Metal roofing sheets, wall panels, composite base plates, floor decking
Automotive: Truck cargo panels, car seat frames, battery housings, stamped blanks
Furniture: Metal desks, filing cabinets, storage cabinets, kitchen cabinet panels
Other Fields: Ventilation ducts, agricultural machinery, warehouse equipment
A: Aogang Cut-to-Length Lines are suitable for a variety of materials, including high-strength steel (Q550D and above), galvanized/aluminized sheets, stainless steel, and aluminum-magnesium alloys. Optional enhanced levelers (17+ rolls) and surface protection systems ensure processing quality and zero damage.
A: Precision is ensured through multiple design measures:
Hardware: Full servo drive, imported high-precision encoders, heavy-duty guiding mechanisms
Process: Adaptive shear gap design and clamping system
Intelligent Compensation: Control system provides temperature and tool wear compensation
Factory length accuracy reaches ±0.5 mm, with periodic calibration services available.
A: Operation is simple. The graphical touch screen stores hundreds of process recipes. Length adjustments are one-click, and slitting blade width changes typically take 15–30 minutes, enhancing flexible production.
A: The main structure uses high-quality steel plates, stress-relieved and optimized with finite element analysis. Siemens/Mitsubishi control systems and Rexroth/Parker hydraulic components are used. 24/7 remote support, fast on-site response, and spare parts supply are provided.
A: Stacking uses servo-driven lifting tables, vacuum suction or air-knife separation, and highly sensitive magnetic alignment. Sheet contact surfaces are fully protected. High-end coated sheets can have film protection or air-cushion conveying to ensure perfect delivery.
Choosing a high-performance Cut-to-Length / Shearing Line not only improves production efficiency and precision but also helps enterprises reduce costs, enhance consistency, and strengthen market competitiveness. Aogang Cut-to-Length Lines, with advanced automation, intelligent control systems, and comprehensive after-sales service, provide reliable, efficient, and precise sheet metal processing solutions across industries. Learn more about our equipment today and upgrade your production line for high-efficiency, precision, and intelligent manufacturing.
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