20-High mills

Cold Rolling
Safe and reliable production of challenging products

Since the fifties of the last century, single-stand 20-high mills have been part of SMS group’s product range. Today, SMS group ranges among the leading manufacturers of 20-high mills. Since the first installations, the mills were continuously further developed. Many of the first installations are still operating, which gives proof of the excellent quality and robustness of this mill design. Depending on the application, 20-high mills come in different sizes and in two versions: the closed, robust MonoBlock or the more flexible SplitBlock type. They can fulfill any material and surface requirement. Apart from the main application stainless steel, they can also be used for the production of silicon steel, copper and copper alloys as well as for titanium strips. Beside the X-Roll mechanical equipment and the X-Pact electrical and automation systems, SMS group also supplies customized lubricants. These X-Lub rolling oils are finely adjusted to the rolling technology of SMS group, ensuring perfect strip surface quality and economical consumption.


MonoBlock: the powerhouse of the reversing mill

20-high mill in MonoBlock design

Best in its class for extremely hard material grades

Compact and robust, this stand comes with superb rigidity. That makes it ideal for rolling even the hardest material grades, e.g. AISI 200 /300 stainless steel. You can expect reductions of up to 90%. Furthermore, finely meshed mechatronic systems including advanced actuators, thickness and flatness control systems, as well as sustainable filter systems guarantee efficient production plus excellent strip quality.

SplitBlock: upper and lower roll sets with flexible gap

20-high mill in SplitBlock design

Proven effective for challenging final products

SplitBlock stands from SMS group are capable of rolling a large product mix of material grades and thicknesses. Split into an upper and a lower half, the stand opens wider to accommodate larger-diameter work rolls. This design provides easy access during roll changing. It also simplifies the threading procedure.


Maximum utilization of precious material High-end actuators, controls, and support systems:

You face constantly increasing demands on product quality and production efficiency. That’s why we equip our 20-high mills with a package of high-end rolling technologies so you can rely on smooth production and high yields. Included in these solutions are roll-gap actuators, thickness and flatness control, and advanced support systems.

Semi-automated roll changing

Roll change robot
High-speed roll changing

What saves you serious money is our equipment that cuts non-productive times in your cold rolling mill. Take for instance our quick roll change solutions. You can choose between semi-automated and fully automated systems. The most advanced option is the high-speed roll change robot.

Basic design of the Nipco® oil wiper system

Nipco® oil wiper system
Highly efficient and innovative

You rightly expect perfect strip surfaces from our rolling mills. Dedicated to just that is the Nipco® wiper system. This joint development by SMS group and Voith represents a new dimension of efficiency and effectiveness of wiper systems in cold rolling mills.

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Modular design
Shorter erection and commissioning times

Characteristic of our 20-high mill stands is the large share of in-house manufacturing. Prior to delivery to the customer, they are preassembled in our Hilchenbach workshops in Germany, complete with piping and cabling. Due to their modular design, the mills can be shipped in a single delivery.

Supafine® filter system

Supafine® filter system
Ideal for fine-filtering rolling oil

Our Supafine® filters are designed for micro-filtration of the low-viscosity mineral oils applied in cold rolling stainless steel. Yet it often happens that today’s widely used pre-coated cartridge filters cause problems with waste disposal. Unlike these old types, Supafine® filters do not require any filtering agents...

Selected References

Electrical and automation systems

Future-proof complete solutions from one source

  • Integrated solutions consisting of mechanics, electrics, and automation
  • The benefits of long-term experience with X-Pact® world-leading automation
  • Energy distribution and drive systems
  • The only genuine future-proof automation system
  • Control stations designed around the operator
  • Innovative HMI system for production-centered operation
  • Plug & Work integration test, process and production simulation, near-reality 3D visualization
  • All-inclusive modernization
  • International setup
Electrics and automation systems image

Holistic, efficient, and future-proof

Products and solutions for 20-high mills

X-Shape Flatness Measuring and Control
X-Shape Flatness Measuring
Technological control for mill stand
Coiler Control
Advanced Thickness Control
20-high Roll Stack Geometry Validation
20-high Mathematical Model
Pass Schedule Calculation (PSC®)
Your professional partner
for 20-Roll-Mills

Our specialists in electrics, automation, technology, and mechanics work hand in hand to ensure your systems function smoothly. That’s how we create intelligent, market-centered solutions that boost your production.


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X-Roll cold rolling mill for BSSB

SMSgroup Image

20-roll cold mill from Goldsky - Specialized in Titanium


Compact Cold Mills
Ahead of Times with Plug & Work
Precise Cold Rolling
X-Pact Vision Operation and visualization
Low-Voltage Frequency Converter
Production Planning and Scheduling


SMSgroup Haentjes, Michael

Michael Haentjes

SMS group GmbH
Technical Sales Processing Lines
Walder Straße 53
40724 Hilden

Phone : +49 211 881 5207
Fax : +49 211 881 775207


Learn about our plant technology covering the entire process chain for the production of high-quality metals.