LANGUAGE PRIMETALS TECHNOLOGIES COMPETENCES ABOUT US CAREERS CONTACT PRESS&MEDIA TANDEM COLD MILL Home > Primetals Technologies > > Cold Rolling> Tandem cold mill TANDEM COLD MILL Tandem cold-mill solutions from Primetals Technologies stand for high product yields combined with flexible production, low operational costs and simplified maintenance work. Depending on the product mix, the production capacity of continuous tandem mills from Primetals Technologies can exceed 1.2 million tons per year. The goal is to provide solutions that offer maximum added value for customers. Advanced mill stand actuators contribute to improved yield, user-friendly mill operation, and high-quality strip that lies within the specified tolerance values. Both 6-high and 4-high mill stands with their specific features and benefits are supplied on the basis of detailed analyses of product and customer requirements. Benefits By joining coils prior to entering the mill, a continuous tandem cold mill results, offering additional benefits like: Highest production rates Optimized yield Reduced roll consumption Flexible production Tight tolerances for strip thickness, shape, and high surface quality Low costs for operation, maintenance, and minimum down times Fewer operators Reduction in off-gauge material Elimination of strip threading problems Fig.1- Six-high cold mill stand | Fig.2- Five stand continuous cold tandem mill | Fig.3- Carrousel tension reel Features The Tandem mill consists of three to six mill stands arranged in series to progressively reduce the thickness of the strip in a single pass. A continuous tandem mill has a welder and accumulator looper at the entry end to join successive coils of pickled hot rolled material. This provides a large-scale mill that is capable of full automation to deliver the most advanced levels of quality and operating stability. It provides high production efficiency, and is used in the production of a broad range of steel types, from general construction materials to high-grade materials for automobile panels and other purposes. Increasingly, for automotive steels, high-tensile materials at thinner gauges are being demanded to save vehicle weight and hence improve fuel consumption. As a result, higher performance is being demanded of the rolling mills. To meet this need, a continuous 5-stand tandem mill directly connected to the pickling line and using 6Hi UCM-Mill (Universal Crown Control mills) for all stands has become the standard. The UCM-Mill features: Work roll bending Intermediate roll bending Intermediate roll shifting Super heavy reduction High strip shape control Stable operation Roll inventory reduction Yield increase (by decreasing edge drop of the strip) To cope with the high speed of delivery of the rolled strip a carrousel tension reel coils the strip on exiting the mill. This has two mandrels enabling the strip to be cropped on completion of a coil allowing the second mandrel to accept the oncoming strip without stopping the mill. Fig.4- Advantages of 6-high Universal Crown Control Mill (UCM) on strip flatness Reference Story TCM for Thin Gauge and High Speed Rolling Customer: POSCO-Vietnam PL-TCM (TCM Section) / Phu My, Vietnam Main Specification: Material: Low Carbon Steel, High Strength Steel Strip Thickness: Entry 1.8 to 5.0 mm, Delivery 0.15 to 1.6 mm (For Construction) Strip Width: 700 to 1,570 mm Coil Weight: Max. 35,000 kg Rolling Speed: Max. 1,700 m/min Mill Type: 6Hi UCM-Mill (No.1 to 5 Stand) CONTACT AND SUPPORT You have questions? We‘re always happy to help you! FURTHER INFORMATION Videos I Accept primetals.com uses cookies. By using our website you are agreeing to our Cookie Policy. More info PRIMETALS TECHNOLOGIES Ironmaking Steelmaking Continuous Casting Hot Rolling Long Hot Rolling Flat Cold Rolling Non ferrous rolling Processing Endless Casting & Rolling Mini Mills COMPETENCES Lifecycle Services ECO Solutions Innovation Power Integrated Plants & Solutions Electrics & Automation ABOUT US Company Profile Compliance, QM & EHS, Tax Corporate Organization Locations Supply Chain Management Technology Legacy CONTACT PRESS & MEDIA © Primetals Technologies