Double Reduction Mill for Tinplate
Tenova’s Two Stand Double Reduction Mill (DCR) is a key element of light gauge tinplate production. Our solution is equipped with advanced measuring and process control systems that guarantee precise, efficient, and consistently high-quality production.
Overview
The DCR is a step in the production of light gauge tinplate after the recrystallization process in the annealing furnaces. The Two Stand Double Reduction mills plays a key role in obtaining an ultra-light strip gauge that also combines desired hardness, thereby ensuring superior strip surface and profile quality.
This versatile machine is designed to meet the market’s constantly evolving demands. The First Stand of the mill serves a dual purpose, handling both cold reduction and tempering effectively, while the second mill stand is exclusively dedicated to tempering, enhancing the surface finish of the outgoing strip.
Tenova's DCRs are outfitted with cutting-edge measuring and process control systems, guaranteeing the highest quality standards for tinplate production. Precise strip thickness control is achieved through a combination of feedback, feedforward, and mass-flow control.
Furthermore, Tenova mills boast a comprehensive range of advanced features. These include high-performance AGC Cylinders, Automatic Flatness Control (AFC), Positive and Negative work roll bending, Continuous Pass-line adjustment, and Quick work roll changing systems. Together, these features enhance the DCR performance and versatility in the production of light gauge tinplate.
Technical data
Our Double Cold Reduction mill (DCR) incorporates the latest technological advancements and comprises the following key components:
- Uncoiling Section: Featuring a payoff reel, coil centre positioning system, pinch roll, entry bridle roll, and automatic pup-coil removal system.
- Tension Reel: Equipped with a belt wrapper, automatic spool loading unit, and coiling auxiliary devices.
- Entry, Interstand, and Exit Groups: Comprising shears, spray cooling system, a drying system, roll polishing devices, speed laser sensors, x-ray thickness gauges for a close loop Automatic Gauge Control (AGC), and tensiometer rolls.
- Two Mill Stands: These stands are designed with a 4-high configuration, rolling force cylinders, and continuous wedge pass-line adjustment. They also include positive and negative work roll bending in Mae-West blocks, a quick work roll changing system (side shifting), and work roll drive.
- Auxiliary Equipment: Consisting of high and low-pressure hydraulic systems, emulsion oil filtration and delivery system, wet tempering system, air-oil lubrication unit, gear lube system, and a fumes exhaust system.
Our configurations can be tailored to meet specific requests and/or needs, ensuring solutions that are perfectly aligned with our customers’ requirements.
Key Data:
- Productivity range: 100,000 to 350,000 tons per year
- Rolling Mill speed: up to 1,500 m/min
- Minimum outgoing thickness: as low as 0.11 mm
- Nominal Rolling Force: up to 18,000 kN
Impressive 99% availability
Innovation
Innovation is at the core of Tenova’s Cold Rolling Equipment Design. Key benefits include a swift return on investment (ROI), thanks to the high flexibility of our mills. The innovative design of our Cold Rolling Equipment leads to a significant reduction in logistics, maintenance, and manpower expenses, thereby streamlining cost management.
Moreover, it contributes to a noticeable decrease in consumables, such as rolls. Integral to this approach is the constant monitoring, control, and optimization of operational parameters, ensuring continuous improvement and competitive advantage in a dynamic market landscape
Automation
- Smart Level 2 offering models and technology to enhance and optimize key process parameters.
- Proven pass schedule mathematical model.
- Automatic flatness and gauge control.
- Automation powered by ML & AI processes.
Digital
- Catalogue creator
- Tenova IoT Platform and Tenova EDGE for data-driven insights.
- Tenova adVISOR for remote real-time assistance
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