Hot strip mill work rolls are special rolls that are mainly found in rolling processes in the metalworking industry. They process steel and other metals at temperatures above the recrystallization temperature. The rolling stock temperatures are up to 1300°C. Their main function is to reduce the thickness of the rolling stock and improve its mechanical properties. They are in direct contact with the hot metal and must withstand high thermal and mechanical loads. For this reason, there are a large number of materials and variations for this type of roll in order to ideally adapt the roll to the application.
Rolls for the rubber industry
Tailor-made roll solutions for rubber processing
Learn more
Our highly wear-resistant rolls are characterized by excellent thermal stability and precision and are therefore ideal for the production of high-quality products such as tires, V-belts, conveyor belts and more.
Using advanced CNC-controlled machines, we create precise surface profiles and textures and offer a wide range of coatings to optimize the performance and service life of your rolls. Implementation of a corrugated or profiled barrel according to your specification is also possible. As your competent partner for rubber calenders, mixing rolls and crusher rolls, we offer tailor-made solutions according to your requirements.
Based on this principle, we have developed a solution for applications with sticking problems. This special solution not only provides anti-sticking properties but also leads to exceptional efficiency improvements in your process. In addition to the excellent technical properties, our products hence also bring economic benefits for the user.
Do not hesitate to choose the superior solution, too.
Features
We manufacture our rolls individually tailored to your needs.
Here are some common features. Of course we also offer special solutions.
Diameter
up to 2100mm
Precision
up to ± 1 µm
Total lengths
up to 11000 mm
Temperatures
Different heating and cooling systems
Optimized for durability and efficiency
Some good reasons why our rolls are the best choice.
The excellent wear resistance offers a long service life and resistance to fatigue.
Constant material properties ensure a consistently high quality of the surface over the entire service life.
Enduring roll materials allow for an extended service life without loss of quality.
High economic efficiency is achieved through an optimal balance between cost and performance.
A surface finish exactly according to your wishes with the option of corrugations, profiles or defined roughness.
Outstanding efficiency gains in your production, e.g. through the use of anti-sticking properties.
Various peripheral systems enable the flow principle to be ideally adapted to the application in your production process.
We respond to your needs and find a suitable solution for your application, which we can also tailor individually to your requirements.
Discover our wide range of roll types.
For the "Rubber industry" we offer the following roll types as standard.
Hot strip mill work rolls
- Flat products
- Non-ferrous metals
Roughing rolls
- Flat products
- Non-ferrous metals
Roughing rolls are also used in rolling processes in the metalworking industry. They are the first to come into contact with the metal in a continuous rolling process and are used to prepare the material before the finishing rolling process. They carry out pre-forming to bring the material to the desired thickness, shape and surface finish in order to then ensure a uniform and controlled rolling process in the finishing train.
Plate mill rolls
- Flat products
- Non-ferrous metals
Plate mill rolls are used specifically for the production of sheets of steel or other metals and play an important role in the metal industry. These rolls are used to roll slabs into large metal plates. The material is reduced to the desired thickness and defined surfaces are created. The heavy plates are typically used for applications in shipbuilding, mechanical and plant engineering, industrial plants and other large structures as well as in pipe production.
Steckel rolls
- Flat products
Steckel rolls are used in Steckel stands, whereby a single roll stand fulfills the rolling task of an entire wide strip finishing train (with up to 7 stands). Therefore, particularly high demands are placed on the material and wear resistance of the rollers. During the rolling process, the rolling stock reverses between two coilers and is continuously reduced in the Steckel stand until the final product thickness is reached. We also offer individually tailored materials and solutions for this special rolling application.
Backup rolls
- Flat products
- Non-ferrous metals
Backup rolls are used to support and stabilize the work rolls during the rolling process. The backup rolls also absorb loads from the rolling process and relieve the load on the work rolls. This enables greater reductions in the rolling process, the production of thinner rolled products or the production of high-strength grades. They are used in a wide range of rolling applications, primarily in the rolling of metals in hot and cold forming processes.
Edger rolls
- Flat products
- Long products
- Non-ferrous metals
During a rolling process, the rolled material is elongated. However, this always occurs in combination with the rolled product expanding in width. Edger rolls are used here to reduce the expansion in width and to keep the rolled material in shape on the flanks. They are mainly used in metal processing and are available in various shapes, dimensions and variants. Both solid bodies and rings on axes are used.
Skin pass rolls
- Flat products
These rolls are mainly used in cold forming metal processing after a hot rolling process. Their purpose is to process or "dress" the surface of sheets and strips by removing irregularities or other surface defects and improving the mechanical properties. This ensures that the rolled products continue to have unrestricted quality and precision, even in relation to downstream processes. In addition to correcting unevenness, this rolling process also sets a defined surface roughness. Dressing rolls are used in steel production, in places where high demands are placed on surface quality.
Pinch Roll
- Flat products
Pinch rolls are special rolls used in the steel and metal processing of strips. They are used to redirect the rolled product after the rolling process into a coiler, where the product is coiled.
Cold strip work rolls
- Flat products
- Non-ferrous metals
Cold strip rolls are used to process metal strip at low temperatures below its recrystallization temperature by further reducing the thickness of the rolled material, smoothing the surface and thereby improving the product properties. The shape and flatness of the rolled material can also be adjusted by roll bending. These rolls are used for rolling processes for various metals such as steel or aluminum.
Section mill rolls
- Long products
Section mill rolls are used in the manufacture of long products. For this purpose, they are equipped with an individual calibration, which is crucial for the shape of the rolled product. These rolls are used to produce, for example, rails, angles, beams, U-profiles, T-profiles, hollow profiles and bars as well as wires.
Profile rings / universal rolling rings / Diescher discs
- Long products
Profile rings or universal rolling rings as well as Diescher discs are specially shaped rings of different sizes that are often mounted on axes and are used to shape the rolled material. Like section mill rolls, they are used in the manufacture of long products to enable precise shaping and processing of the metal. These rings are used in the manufacture of angles, beams, U-profiles, I-profiles, T-profiles and pipes, among other things.
Straightening rolls
- Long products
Straightening rolls are used to correct the thickness and profile of metal strip or sheet, as well as long products. They are typically used after the rolling process to remove any irregularities or deformations in the material and to ensure uniform thickness and a precise profile.
Assel and piercing rolls
- Long products
Piercing rolls drive a solid metal rod over a mandrel, creating a hole in the center. Assel rolls then reduce the hole created and roll the tube to the desired wall thickness and dimension. The tube is lengthened while simultaneously reducing its wall thickness. In this way seamless tubes are produced that are used in various industries.
Peripherally drilled rolls
- Rubber
- Food
- Plastics
- Paper
- Battery
Peripherally drilled rolls have end-to-end drills that form a complex system of holes for passing cooling or heating fluids through. This means that the rolled material is either cooled or heated in a specific manner. In addition, depending on the application, these rolls are designed with a defined surface roughness up to a mirror finish and are also ground with the finest tolerances in terms of concentricity and shape. The applications for these rolls are diverse and range from plastics production to tire production to food processing.
IT calenders
- Rubber
- Plastics
An IT calender, also known as an inverted tension calender, is used to produce materials such as plastics or rubber in sheet form. Due to the residual stress that develops in the rolled product, it falls into a flat shape after separation from the roll without any further processing and can then be processed further.
Hollow cast rolls
- Rubber
- Food
- Plastics
- Paper
Hollow cast rolls are rolls that have a defined hollow chamber inside. In contrast to peripherally drilled rolls, the chamber inside the roll is formed during casting. This ensures that these rolls have a defined chamber and wall thickness in the barrel area. This chamber is used to specifically control the temperature of the rolls during use. A wide variety of surfaces and corrugations can be created to adapt the rolls to their intended use.
Roller shells
- Food
- Ceramics
Roller shells are cast components that are particularly robust and hard. They are used in rolling mills for the crushing and comminution of clay or other ceramic and mineral materials.
Pan mill rings
- Ceramics
Pan mill rings are circular rings that are used in pan mills. These are systems that are used to crush, mix and moisten kneadable to semi-solid clay. Like roller shells, they are used in the brickworks and ceramics industries.
Special designs
- Rubber
- Food
- Plastics
- Paper
- Battery
For every application in the field of rolls, we supply tailor-made solutions according to customer requirements and are able to develop a suitable roll together with you.
Are you looking for a different type of roll? Click here for the complete overview.
The right material for every application.
For the "Rubber industry" we offer the following materials as standard.
HSS TERANIT B
- Flat products
- Long products
- Non-ferrous metals
HSS TERANIT B is a high-speed steel alloy enriched with special carbides that was specially developed for the production of rolls for the steel industry. It is characterized by its excellent wear resistance and good high temperature strength. These properties enable longer service life, which increases the productivity of your rolling mill.
TERANIT B offers ideal properties for precise and efficient rolling processes, especially in the production of sheet or strip made of steel, aluminum or other metals. This material is suitable for work rolls in roughing stands, front finishing stands and heavy plate stands, among others.
Semi-HSS TERANIT A
- Flat products
Semi-HSS TERANIT A is a high-alloyed steel alloy used to manufacture rolls for metal processing. Compared to conventional high-speed steel (HSS), it offers improved toughness with high wear resistance and excellent mechanical properties. It is often used in applications that require higher resistance to cracking and good gripping behavior. The areas of application are diverse and range from work rolls in hot strip mills to cold rolling applications and backup rolls.
Chrome steel CROMANIT CS
- Flat products
- Ceramics
- Non-ferrous metals
CROMANIT CS chrome steel is used in the manufacture of rolls for metal processing. The alloy contains a high chromium content and other alloying elements that contribute to the formation of carbides. It offers high wear resistance and very good thermal shock resistance, making it ideal for demanding applications. CROMANIT CS is used in many different rolling applications. These include roughing and finishing stands for hot strip mills, Steckel or heavy plate stands, as well as cold rolling applications or backup rolls.
Chrome iron CROMANIT
- Flat products
- Long products
- Non-ferrous metals
CROMANIT chrome iron is used for various rolling applications and is known for its very high carbide content. Chromium in particular in higher concentrations but also other alloying elements are added to this material. The alloy therefore offers high wear resistance and hardness, which makes it ideal for demanding and abrasive rolling applications. CROMANIT is versatile and is used in hot and cold rolling processes in various stands, but it is also used in other industries.
Indefinite chill cast iron ULTRANIT
- Flat products
- Long products
- Non-ferrous metals
ULTRANIT indefinite chill cast iron is an alloyed cast iron with embedded graphite and carbides. This combination provides a characteristic hardness on the one hand and good resistance to fire cracks on the other. Typical areas of application include hot strip mills, Steckel and heavy plate mills as well as cold strip mills and non-ferrous metal production. The material is used for a wide range of roll types.
Micro-alloyed indefinite chill cast iron ULTRANIT S
- Flat products
- Long products
- Non-ferrous metals
Micro-alloyed indefinite chill cast iron ULTRANIT S is a further development of the ULTRANIT materials, specially developed for demanding applications in metal processing. This alloy also contains highly wear-resistant special carbides, which are embedded in a fine-grained matrix alongside finely distributed graphite. The micro-alloyed version offers additional properties such as increased wear resistance, increased hardness and improved high temperature strength. Thanks to the special alloying additives, rolls made of ULTRANIT S can achieve a higher rolling performance than normal indefinite chill materials. The areas of application for this material are just as diverse and include various rolling applications in hot and cold rolling processes.
Graphitized HSS TERANIT F
- Flat products
Graphitized HSS TERANIT F is a special variant of the TERANIT materials which was developed for applications where improved heat dissipation is required. This alloy is characterized by the integration of graphite particles that improve the heat dissipation properties and at the same time provides high wear resistance. The use of graphitized HSS TERANIT F is primarily intended for the finishing stands of hot rolling processes and represents a new generation for the replacement of indefinite chill rolls.
Pearlitic nodular iron SPHÄRONIT
- Flat products
- Long products
- Food
- Ceramics
Pearlitic spheroidal cast iron, known as SPHÄRONIT, is a special form of cast iron alloy and is characterized by a predominantly pearlitic structure with embedded cementite and spheroidal graphite. This material is characterized by high strength, good thermal conductivity and high toughness and ductility. SPHÄRONIT is used in various rolling applications and for various types of rolls. Among other things, it is chosen for edger rolls or rolls for long products and has been a proven solution for many years.
Acicular nodular iron ASTRANIT
- Flat products
- Long products
- Ceramics
ASTRANIT materials are characterized by a high alloy content, which ensures excellent wear resistance due to their carbide structure and a bainitic to martensitic structure. This special form of ductile iron offers improved mechanical properties in terms of strength and toughness due to the alloy composition and the specially coordinated heat treatment. It should be noted that intensive cooling is required for optimal performance and durability in use. ASTRANIT is therefore the ideal choice for applications with high wear and friction, especially in the production of long products.
Cast steel SOLANIT
- Flat products
- Long products
SOLANIT cast steel covers a range of eutectoid to hypereutectoid cast steel qualities. Through specific alloying and complex tempering processes, the hardness and wear resistance are optimized in the various quality levels (SOLANIT A to D). In addition, SOLANIT is also available in graphitized (SOLANIT G) and heavily graphitized (SOLANIT SG) form. These SOLANIT rolls are typically used in edgers for hot strip and heavy plate mills, where they fully exploit their strengths in these demanding applications. In addition, the materials of the SOLANIT Group are also used in a variety of ways in the form of backup rolls or rolls for long products.
Chilled cast iron DURANIT
- Rubber
- Food
- Plastics
- Paper
- Ceramics
DURANIT chilled cast iron is a high-alloy, graphite-free, carbide cast iron known for its hardness and wear resistance. The properties of this alloy are created by pouring liquid cast iron against a mold. DURANIT is often used in applications that are subject to high abrasion stresses, such as wear parts in the ceramics industry. This material is also chosen for hollow cast rolls and calender rolls, where it represents a traditional solution.
Alloyed chilled cast iron DURANIT S
- Rubber
- Plastics
- Paper
Alloyed chilled cast iron DURANIT S is a further development and thus a new variant of chilled cast iron with improved mechanical properties, including higher hardness, wear resistance and toughness. Alloying elements are added in a specific manner to achieve these properties. This alloy is ideal for the demanding applications in rubber, paper and plastics production. This material also offers many advantages for rolls that receive a coating because its excellent mechanical properties contribute to an extended service life of the applied coatings.
Chrome steel CROMANIT K
- Rubber
- Plastics
- Paper
- Battery
CROMANIT K chrome steel is characterized by an impressive carbide structure and hardness of over 80 ShC, which enables improved wear resistance and superior mechanical properties. This alloy is provided with chromium and other alloying elements and subjected to a special heat treatment that is ideally suited to demanding applications that require durability and performance. CROMANIT K rolls are ideal for calendering in the precision range while maintaining extremely tight product tolerances and at the same time offering excellent wear resistance. They can be used both with and without a surface coating and are used in rubber, paper and plastics production.
Chrome steel CROMANIT S+
- Rubber
The CROMANIT S+ material was specially developed for use in the rubber industry and is used in calendering and mixing for rubber mixtures with high silica content. This new material is precisely tailored to the application with special alloying elements and an adapted heat treatment to prevent the rubber mixture from sticking to the rolls. In addition, its properties include excellent wear resistance and high chemical resistance. This results in many advantages for the user because significantly fewer cleaning cycles and less re-grinding are necessary, which in turn reduce cost and increase output. In addition, these rolls have a longer service life, better profile retention and a better release angle, which also have positive effects on overall cost and productivity.
Chrome steel CROMANIT SH
- Battery
CROMANIT SH chrome steel is a special alloy with very high hardness and outstanding mechanical properties that is used in demanding applications such as the manufacture of battery electrodes. Hardnesses of over 68 HRC can be achieved and the strength is also many times higher compared to forged steel and other materials. CROMANIT SH also has very good wear resistance and can be equipped with various coatings, whereby the durability of the coatings also benefits from the excellent properties of the base material. CROMANIT SH is the only material that has successfully proven its performance in industrial applications and has been able to significantly increase productivity. This material redefines the limits of what is possible.
Forged steel
- Flat products
- Long products
- Food
- Plastics
- Paper
- Battery
- Non-ferrous metals
Forged steel is a special type of steel known for its high strength, toughness and formability. Forged steel is heated to a high temperature and then forged or hammered to achieve the desired shape and strength. This manufacturing method results in a finer microstructure of the steel, making it more resistant to fracture and improving mechanical properties. By inductive hardening the forged steel body, higher hardnesses can be achieved in a thin surface layer. Forged steel is used in a wide range of applications and is used in the form of rolls in cold rolling processes in the steel industry, in the production of plastic film or in the food industry, among other things.
Special alloys
- Flat products
- Long products
- Rubber
- Food
- Plastics
- Paper
- Ceramics
- Battery
- Non-ferrous metals
Through the targeted use of special micro-alloying elements in conjunction with intensive heat treatment, all qualities of the individual material groups can be further optimized and individually adapted to customer requirements. This enables customized solutions for different applications and increases the performance of your rolling processes.
Are you looking for a different material? Click here for the complete overview.
Further industry solutions
Are you looking for a special solution for your rolling process?
Trust in 169 years of experience.