Lift Sling Rigging Co., Ltd manufacture DuPont Nylon Paper Guiding Carrier Rope for Dryer Cylinder,

DuPont Nylon Paper Guiding Carrier Rope is a high-performance threading rope specifically engineered for the demanding conditions of paper machine dryer cylinders. It serves as a critical component for guiding and carrying the paper web through the drying, sizing, coating, and reeling sections of a paper machine. This rope is the connecting link between all rollers of various sizes in different paper machine sections, responsible for pulling the narrow paper web from one roller to another, ensuring continuous and stable production.

Material & Construction

Premium DuPont Fiber Material

Made from high-quality DuPont fiber (polyamide/nylon), this rope offers exceptional performance characteristics. Nylon, invented in 1928 by Wallace Carothers at DuPont, is characterized by strong hydrogen bonds between NH and C=O groups of polyamide macromolecules. The dense packing of nylon macromolecules associated with hydrogen bonds leads to a high crystalline-fraction volume, which provides the rope with strong mechanical properties, high thermostability, and high tribological stability.

8-Strand Braided Structure

The rope features an 8-strand braided structure that provides excellent durability and performance. This construction method ensures uniform strength distribution and consistent performance throughout the rope's service life.

Available Types

The paper carrier rope is available in two configurations to meet different operational requirements:

• No Core Type (Hollow): Mainly used for low-speed machines and lightweight paper. This type is easy to splice and offers convenient handling.

• With Inner Core Type: Designed for higher-speed machines and heavier paper grades. The inner core provides better holding power and resistance to elongation. The inner core of high-tenacity polyamide filaments provides tremendous breaking strength and excellent shock load absorption.

Key Features & Benefits

High Temperature Resistance

The DuPont Nylon Paper Guiding Carrier Rope is capable of withstanding operating temperatures up to 180°C, with a recommended operating temperature of approximately 90–100°C. This makes it ideal for use in the high-temperature environment of dryer cylinders.

Special Impregnation Treatment

Applied to each thread by a specially developed method, the improved impregnation gives greater protection to the fibers of the rope and provides an excellent surface for gripping the paper tail27. This treatment significantly enhances the rope's threading efficiency and reliability.

Abrasion Resistance

The rope exhibits excellent abrasion resistance, which is crucial for prolonged service life in the challenging environment of paper machines where ropes are exposed to heat, moisture, chemicals, and various abrasion locations.

Unique Hollow Braided Construction

The unique hollow braided construction resists flattening under normal operating tension, further enhancing its threading efficiency and ease of splicing. This design feature ensures consistent performance and reduces the frequency of rope replacement.

Easy Splicing

Compared to other types of carrier ropes, the DuPont Nylon variant offers easier splicing, which is essential for forming the continuous rope ring required for paper machine operation. The ends of a rope are spliced into each other to form a rope ring, typically ranging from 50 to 100 meters in length depending on the section of the paper-making machine.

Technical Specifications

Breaking Strength & Elongation

Technical parameters based on industry standards

Additional Options

If extra resistance to elongation is required, an option is available in filament polyester, specifically designed for wet conditions.

Application Areas

The DuPont Nylon Paper Guiding Carrier Rope is widely used in the following paper machine sections:

Pre-dryer section

Dryer section

Post-dryer section

Reel section

These ropes serve for guiding the paper web through the roller system in various sections of the paper-making machine. Two or three paper guide ropes normally run closely next to each other, and the paper tip is clamped between those ropes and guided through the sections in a controlled manner.

Working Principle

The paper carrier rope functions through a rope threading system that includes rope pulleys, rope stretchers, and rope drives. The ropes form a rope nip where the paper leader strip is directed and carried through the machine sections. The ropes pull the narrow paper web from one roller to another, ensuring smooth and uninterrupted paper web transfer.

Conclusion

The DuPont Nylon Paper Guiding Carrier Rope for Dryer Cylinder represents a premium solution for paper mills seeking reliable, durable, and high-performance threading ropes. With its exceptional heat resistance, abrasion resistance, and specially engineered construction, this rope significantly reduces downtime, improves production efficiency, and extends service life in demanding paper-making environments. It is the preferred choice for paper mills looking to optimize their rope threading systems and achieve consistent, high-quality paper production