Corrugating Rolls

Corrugating rolls have an important role in forming the fluted layer of corrugated boards. Their surface quality, hardness, and wear resistance directly affect the precision of flute shaping, the stability of bonding, and the overall output of the production line. In an era where profit margins run razor-thin, choosing the right corrugating rolls becomes a key factor in reducing maintenance costs and improving production efficiency.

At Yonghui, we focus on manufacturing corrugating rolls that support high-speed operation, extended service life, and reduced downtime. Our flute profiles are continuously optimized to meet evolving industry demands, including lightweight paper use and wider web widths.

Each corrugating roll we offer is designed to be compatible with major single facer models from manufacturers such as BHS, Fosber, Mitsubishi, BW Papersystems, Marquip, Peters, Isowa, JS, TCY, West River, Hsieh Hsu, K&H, XHL, Fuli, and Wanlian. Whether you need custom flute geometry or a specific surface coating, our team provides reliable corrugating roll solutions tailored to your production goals.

    1. Peripheral Heating Corrugating Rolls
    2. Peripheral Heating Corrugating Rolls Peripheral heating corrugating rolls are used in corrugating equipment to shape the fluted medium during the production of corrugated board.
      Heats up quickly with multi-zone design, reaching optimal temperature in just 5 minutes
      Cuts energy consumption by more than 10% compared to traditional heating systems
      Offers around 20% longer service life thanks to reduced thermal stress and stable performance
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    1. Tungsten Carbide Coated Corrugating Rolls
    2. Tungsten Carbide Coated Corrugating Rolls Our tungsten carbide corrugating rolls are coated using the JP8000 supersonic flame spraying system, applying tungsten carbide powder at particle speeds above 800 m/s and flame temperatures below 1400°C.
      The service life of tungsten carbide coated rolls reaches over 50 million meters, verified through long-term industry use
      Surface roughness achieved through precision polishing is Ra 0.2–0.4, ideal for high-speed corrugator lines
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    1. Chrome Plated Corrugating Rolls
    2. Chrome Plated Corrugating Rolls Our chrome plated corrugating rolls are manufactured from 50CrMoA alloy steel, then heat treated and precision-ground to ensure dimensional accuracy and structural strength.
      Forged from high-strength 50CrMoA alloy steel for excellent structural integrity
      Finished with a hard chrome coating over 0.08 mm to improve wear resistance
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Corrugating Rolls
Advantages
  • Our corrugating rolls are built for performance in demanding production environments, combining proven materials with precision engineering and advanced surface treatment.
  • We use 50CrMoA alloy steel, a material known for its stability under high-speed operation. Our corrugating rolls can run at speeds of over 350 meters per minute without compromising flute definition or cardboard quality.
  • Backed by over 20 years of experience in flute profile design, we can design corrugating roll geometries that maintain consistent flute height and flute pitch, while optimizing paper usage. Our designs help reduce raw material consumption by 0.5% to 1%, offering a measurable cost advantage without affecting the board’s strength.
  • Each roll undergoes a combined surface hardening process, which includes surface coating, nitriding, tempering, and cryogenic treatment. This results in a refined microstructure, stable surface hardness of HRC ≥ 60, and an extended service life. For peripheral heating corrugating rolls, life expectancy can exceed 100 million meters.
  • To further enhance the quality of our corrugating rolls, we apply Praxair supersonic flame spraying technology and use Praxair 1342 tungsten carbide powder. This minimizes porosity and corrosion, while Siemens CNC grinders ensure precise flute accuracy. Our polishing process achieves a surface roughness of Ra 0.2–0.4, with a silicone oil coating added to prevent rust and pitting.
  • We offer fast lead times and reliable support to help customers maintain efficient production with minimal downtime.
Corrugating Rolls
Services We Provide
  • We support our customers with a full range of services that help extend equipment life, simplify installation, and reduce downtime during maintenance and upgrades.
  • We can repair worn or damaged corrugating rolls, glue rolls, pressure rolls, and doctor rolls, restoring them to working condition and reducing the need for new parts. Our team also offers flute profile design and drawing services tailored to specific production needs.
  • For customers requiring specific finishes, we provide satin and engraved roller surfaces depending on the application. Bearing kits and component packages are available to make installation easier, and include options such as pre-lubricated bearing sets, cages, and housings.
  • During inspections, we also offer welding and shaft journal repair to restore structural integrity. Various volume configurations can be supplied based on machine requirements, and our team can work with OEM drawings for equipment from BHS, Fosber, Langston, and others.
  • To support efficient operation, we offer complete cartridge assembly services. This includes installing rolls, bearings, oil seals, and other accessories into preassembled units ready for use. Installation and commissioning can be done either on-site or remotely, depending on customer preference.

Tungsten carbide rolls are known for their exceptional wear resistance, which significantly reduces the frequency and cost of roll replacements, by up to 65–80 percent compared to standard rolls. In addition, they help maintain consistent corrugated board quality and reduce material waste caused by production defects. A standard corrugating roll typically lasts between 6 and 8 million meters, while our tungsten carbide rolls can reach 30 million meters or more, offering a much longer service interval.

Yes, our rolls are designed for compatibility with a wide range of corrugator systems, including models from BHS, Fosber, Mitsubishi, BW Papersystems, Marquip, Peters, Isowa, JS, TCY, West River, Hsieh Hsu, K&H, XHL, Fuli, and Wanlian. Each corrugating roll can be customized to match the specifications and flute profiles required by the customer’s equipment.

Our tungsten carbide rolls are manufactured with a coating thickness between 0.06 mm and 0.08 mm, providing a balanced combination of surface hardness, strength, corrosion resistance, and wear protection.

Corrugating rolls are the core components used to shape the flutes in corrugated board. They form the base of the structure by pressing the paper into a wave-like pattern. Pressure rolls work in tandem with corrugating rolls to bond the fluted medium to the liner under pressure. Additional rollers such as glue rolls, doctor rolls, anilox rolls, and rubber rollers play supporting roles in glue application, glue control, and paper transport during the forming and bonding process.
Roll Refurbishment & Customized Solutions
Roll Refurbishment & Retrofit

We offer complete roll refurbishment and retrofit solutions tailored for the corrugated packaging and printing sectors.

Roll Refurbishment & Solutions
Solutions

We focus on delivering high-quality customized solutions for corrugator machine components, tailored to meet the unique needs of our customers in corrugator rolls and corrugated board equipment.
Corrugated Board Machinery
Looking for reliable corrugating rolls and corrugated board machinery?

Our team is ready to help you find the right rolls, equipment and solutions for your corrugated board production

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