Copper Cold and Foil Rolling Mill


UCM-Mill and X-Mill Technology for thinner foil rolling.

For copper cold rolling and foil rolling, several types of mill are selected according to the rolling process, thickness and materials to be produced. Our typical mill type is the UCM-Mill, which is suitable for rolling to thin gauge. The alternative X-Mill technology is another of our typical mill type for thin copper and copper alloy foil rolling. 4Hi, 6Hi, 12Hi CR mill and 20Hi ZR cluster mill are also applied by us for cold rolling of copper and copper alloys.


The UCM-Mill for copper and copper alloys features small work rolls (WR) combined with shape control functions consisted of WR bending, intermediate roll (IMR) bending, IMR shift using all straight uncambered rolls and a spot cooling system. Rolling of hard and thin material with excellent shape control is realized in the UCM-Mill. Furthermore, equipped with a cobble guard and air wiping system at the mill exit side and  good wiping ability can be achieved during high speed rolling.


The X-Mill with intelligent shape control using Sheet flat is designed for ultra-thin strip/foil rolling. The rolls are arranged in an X configuration in which a pair of parallel back-up rolls support each side of the small diameter work rolls at a tangent below the WR top to prevent horizontal deflection. This enables stable and reliable thin-gauge rolling to be performed.


  • Compact and simple mill arrangement
  • Optimized mill size and layout
  • Stable rolling
  • Automatic mill set-up
  • High speed rolling
  • Minimal downtime
  • Quality product


  • Optimum integrated control
  • Automatic flatness control
  • Automatic gauge control
  • Optimum integrated control system
  • Optimum roll size and motor power
  • Quick hose connection for roll changes
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Continuous improvements of the quality of rolled aluminum products together with increasing demands regarding mill uptime and productivity are strongly supported by the developments and enhanced functionality of our applications for rolling mills. Technological controls and process models are the core of our modern automation concept for improved product quality with maximized utilization of the mechanical, electrical, hydraulic and other controlled equipment.

  • World class thickness and flatness tolerances
  • Less off-gauge material
  • Maximum throughput and availabillity

Scalable Technological Control Systems 

Highly standardized packages with modular design and defined interfaces.

  • Short delivery times
  • Fast start-up 
  • High product quality and highest yield
  • Modular design (new mills, upgrades, extensions and revamps)
  • Ready for Industry 4.0

Integrated Digital Drive Systems

With full capability of technological and diagnostic performance for drive control using high speed multi-microprocessors. Flexible applications cover the wide range of power and voltage ratings.

Technological controls and process models

are highly standardized in our Technological Control System. The range of functions available includes online process models for precise mill set-up for fast and smooth acceleration and max. throughput. It further includes all relevant gauge and flatness control algorithms for all thickness ranges and alloys.

Primetals Technologies has successfully automated Aluminum Cold Mills all over the world, cooperating with world-class Aluminum producers. Our references cover all mill types for Aluminium Cold Rolling.


Get striking results with incremental investments

Modular Coil Shuttle System (MCS) Rail-based, fully automated modular coil transport system
Integrated Solenoid Valve (ISV) Spray System ISV Roll coolant spray bars for hot and cold rolling mill strip flatness control
Position Transducer Position measurement of rolling mill hydraulic capsule
Air Bearing Shapemeter Shape measurement of rolled metal sheet and foil

Reference Story: High-productivity copper cold rolling mill

Type of Plant: 
Reversing Cold Mill featuring UCM-Mill

Our Solution:
Primetals Technologies UCM-Mill for excellent gauge and shape control, and  high quality of product.