Corrugator felt conveyor belts

Corrugator felt conveyor belts are specialized belts used in carton production lines to transport, press, hold, and support the drying of corrugated cardboard sheets in corrugating machines. Made from multi-layer fabric/felt structures using materials such as Cotton, Polyester, PET, Kevlar, or Aramid, these belts offer good heat resistance, pressure resistance, and air permeability. They help keep cardboard sheets stable during heating and gluing while allowing moisture to escape. Depending on the machine model, operating speed, and production conditions, the belt can be selected according to its thickness, width, material, and splice type.

What Is a Corrugator Felt Conveyor Belt?

A corrugator felt conveyor belt is a specialized conveyor belt used in corrugating machines to transport and press-hold cardboard sheets during corrugating, drying, gluing, and forming processes. The belt typically features a multi-layer fabric/felt structure made from materials such as Cotton, Polyester, PET, Kevlar, or Aramid, depending on the machine's requirements.

One of the key characteristics of a corrugator felt belt is its good air permeability, heat resistance, and ability to withstand pressing forces. These properties allow moisture to escape during the drying process while keeping cardboard sheets stable as they move through the machine. The fabric/felt surface also helps reduce the risk of scratches or unwanted marks on the cardboard surface.

Structure of a Corrugator Felt Conveyor Belt

The main components include:

• Base fabric layer: Usually made from Cotton, Polyester, PET, Aramid, or Kevlar. The fibers are tightly woven to provide tensile strength, load resistance, and dimensional stability during continuous operation.
• Surface layer: Features a fabric/felt surface that provides suitable friction to keep and transport cardboard sheets steadily through the machine.
• Reinforcement layers: Synthetic fibers, Aramid, or Kevlar may be incorporated to improve tensile strength, heat resistance, and dimensional stability while reducing belt elongation.
• Air-permeable structure: The woven fibers are arranged to provide suitable air permeability, allowing heat and moisture to pass through the belt during the cardboard drying process.
• Splice: Depending on the application, the belt can use a woven endless splice, heat-resistant fishbone fasteners, or other specialized splicing methods.
• Reinforced edges: The belt edges may be reinforced with stitching or edge sealing to prevent fraying and improve durability during continuous operation. Some belts also feature colored guide lines on the surface to assist with alignment and positioning during installation and operation.

General Technical Specifications of Corrugator Felt Conveyor Belts

The actual specifications should be checked against the machine model, belt dimensions, and operating conditions before selecting the appropriate belt.

Advantages of Corrugator Felt Conveyor Belts

• Good heat resistance: Materials such as Polyester, PET, Aramid, and Kevlar allow the belt to operate reliably in the high-temperature environment of corrugating and cardboard drying systems.
• High air permeability: The woven structure allows air and moisture to pass through the belt, supporting the drying process and helping remove moisture from the adhesive and cardboard.
• Stable cardboard handling: The felt surface provides suitable friction to hold cardboard sheets in position during pressing, drying, and conveying, helping reduce shifting and deformation.
• Good tensile and pressure resistance: The multi-layer structure enables the belt to withstand tension, pressing forces, and continuous mechanical loads in corrugating lines.
• Reduced marking on cardboard: The fabric/felt surface is softer than many conventional conveyor belt surfaces, helping reduce the risk of scratches or unwanted marks on cardboard.
• Stable operation: Good mechanical strength, resistance to elongation, and dimensional stability make the belt suitable for continuous production environments.
• Multiple material options: Cotton, Polyester, PET, Kevlar, Aramid, and other synthetic fibers can be selected according to operating temperature, machine speed, and production requirements.
• Custom manufacturing: The belt can be manufactured according to the required width, length, thickness, material, and splice type of different corrugating machines, making installation and replacement more convenient.

Types of Corrugator Felt Belt Splices

Depending on the machine design and operating requirements, corrugator felt belts can be manufactured with different splice options:

• Endless woven splice: Creates a continuous belt surface without a raised mechanical joint. This method is suitable for applications requiring smooth and stable operation, although installation can require more time and technical skill.
• Heat-resistant fishbone fasteners: Fasteners can be selected according to the belt thickness and construction to provide a suitable joint for corrugating machine operating conditions.

This type of splice is also convenient for belt replacement and maintenance.

Applications of Corrugator Felt Conveyor Belts

Corrugator felt conveyor belts are widely used in:

• 3-ply, 5-ply, and 7-ply corrugating machines, where they transport and press-hold cardboard sheets during production.
• Double Facer sections, where paper layers are glued and combined to form finished corrugated sheets.
• Heating, gluing, and cardboard drying processes, helping maintain pressure while supporting moisture removal during drying.
• Paper and cardboard conveying systems, transporting materials between different stages of the production line.
• Continuous carton packaging production lines, where belts require high durability, dimensional stability, and heat resistance.
• Different types of corrugated paper and cardboard, meeting production requirements for different operating speeds, temperatures, and loads.
• Corrugating machines from various manufacturers, including BHS, FOSBER, MHI, AGNATI, MARUM, TCY, ISOWA, JS, Champion, YIKE GROUP, and other corrugator machine models.

Cleaning and Maintenance Guide for Corrugator Felt Belts

• Regular cleaning: Clean the belt surface to remove paper dust, adhesive, and accumulated residues that may affect contact and cardboard conveying performance. The machine can be operated at low speed while using suitable water or steam, followed by a soft cleaning tool. Allow the belt to dry completely before returning to high-speed operation.
• Check belt tension: Regularly inspect and adjust belt tension. Excessive tension can increase the load on the machine, while insufficient tension may affect cardboard conveying and forming performance.
• Check belt tracking: Monitor the belt's running alignment to ensure that it does not move excessively toward either side during operation. If belt tracking problems occur, inspect the rollers and alignment system and make the necessary adjustments.
• Inspect belt edges and splice: Check for fraying, tearing, loose fibers, or damage around the splice area. Any abnormal signs should be addressed promptly to prevent further damage.
• Monitor wear: Regularly inspect the belt surface and thickness, particularly in areas exposed to high friction and temperature. When the belt becomes excessively worn, elongated, or degraded, timely replacement is recommended to maintain cardboard quality and stable production.

Belota Supplies Custom Corrugator Felt Conveyor Belts

Belota Conveyor Belt Company supplies corrugator felt conveyor belts, heat-resistant fabric belts, and corrugator dryer fabrics in various specifications. Products can be customized according to width, length, thickness, material, and splice type to match different corrugating machines.

The belts are suitable for various corrugating machines and carton production lines, including BHS, FOSBER, MHI, AGNATI, MARUM, TCY, ISOWA, JS, Champion, YIKE GROUP, and other corrugator systems.

Customers can provide the dimensions of the existing belt, machine specifications, or photos of the belt currently in use. Our technical team can then recommend the appropriate belt type, specifications, and splice method, helping reduce the risk of selecting an unsuitable size or material.

We support consultation, custom manufacturing, and supply of corrugator felt conveyor belts for periodic belt replacement as well as new corrugating line installations.

Conclusion

Choosing the right corrugator felt conveyor belt directly affects the stable operation of the corrugating machine and the quality of the finished cardboard sheets. A belt with good mechanical strength, heat resistance, air permeability, and dimensional stability helps maintain continuous conveying, pressing, and drying processes while reducing potential problems throughout the production line.