3 Strand Twisted Nylon Rope for Marine Use Dock Line, Anchor Line, Utility Use Rope

2. Main performance

3.Technology Comparison

Coil length: 220m

Spliced strength:± 10% lower

Weight and length tolerance:± 5%

MBL=Minimum Breaking Load conform ISO 2307

Other sizes available upon request

4.Parameter Table

Production Process

Step 1: Nylon Fiber Extrusion & Drawing

Step 2: Filament Spinning into Yarn

Step 3: Yarn Plying (Forming 3 Base Strands)

Step 4: 3-Strand Twisting (Final Rope Formation)

Step 5: Post-Processing for Marine Performance

• Washing & Drying: The rope is washed to remove manufacturing residues (e.g., lubricants) that could attract dirt or degrade in saltwater.
• UV Stabilization Coating: A clear, marine-grade UV inhibitor coating is applied to prevent brittleness from sunlight—essential for outdoor dock/anchor use.
• Tensile Testing: Random samples are tested for breaking strength, elongation, and twist stability to ensure compliance with marine and utility standards.
• Coiling & Packaging: The rope is coiled neatly (to avoid kinking) and packaged in moisture-resistant materials for storage and transport.

Key Features

• Reliable Tensile Strength & Load Distribution: The 3-strand twisted design distributes weight and tension evenly across all three strands, ensuring consistent load-bearing performance. Nylon’s inherent fiber strength, paired with the twist structure, allows the rope to handle moderate-to-heavy loads (e.g., securing mid-sized boats, lifting small utility equipment) without strand separation or sudden failure.
• Superior Saltwater & Moisture Resistance: Nylon is naturally hydrophobic (water-repellent), and the tight 3-strand twist minimizes water absorption. Unlike ropes that swell or rot in moisture, this rope resists saltwater corrosion, mildew, and degradation—even after prolonged submersion (critical for anchor lines) or exposure to dockside spray.
• Balanced Elasticity & Shock Absorption: Nylon’s moderate elasticity is enhanced by the 3-strand twist, allowing the rope to stretch slightly to absorb sudden shocks (e.g., wave impacts on dock lines, jolts when anchoring). This property protects both the rope and connected equipment (e.g., boat cleats, utility hooks) from damage caused by abrupt tension spikes.
• Durable Abrasion Resistance: The twisted 3-strand structure creates a rugged outer surface that withstands friction against rough marine surfaces (e.g., concrete docks, metal cleats, rocky seabeds) and utility materials (e.g., wood, metal pipes). It resists fraying and surface wear, maintaining integrity even with frequent, repeated contact.
• Easy Handling & Knot Stability: The 3-strand twist provides consistent flexibility—easy to bend, coil, and tie into secure knots (e.g., bowline, cleat hitch) without kinking. Once tied, the rope’s twist structure holds knots tightly, preventing slippage even in wet conditions (vital for dock lines that must stay secure during tides).

Application Scope

Marine Dock Lines

• Used to secure boats (small recreational vessels, fishing boats, mid-sized yachts) to docks, piers, or buoys. Its moisture resistance and knot stability ensure the boat stays anchored during tides, rain, or light waves. The abrasion resistance protects against wear from dock edges or boat hulls.
• Ideal for temporary or long-term mooring: flexible enough for quick adjustments (e.g., adjusting tension for rising tides) and durable enough for seasonal use in coastal or saltwater marinas.

Marine Anchor Lines

• Suitable for anchor systems on small to mid-sized boats (e.g., sailboats, pontoons) in calm to moderately rough waters (lakes, bays, coastal areas). Its elasticity absorbs shock from wave action, preventing the anchor from dislodging, while saltwater resistance ensures longevity during submersion.
• Used for short-term anchoring (e.g., fishing stops) or overnight stays: strong enough to hold the boat’s weight and flexible enough for easy deployment/retrieval.

Utility Use

• Outdoor & Construction Tasks: Tying down equipment (e.g., ladders, scaffolding, tools) on job sites, securing temporary barriers, or bundling materials (e.g., pipes, lumber). Its abrasion resistance handles rough surfaces, and UV stability withstands prolonged sunlight.
• Agricultural Applications: Securing light farm equipment (e.g., small trailers, irrigation hoses), tying plant stakes (e.g., tomato vines), or bundling hay bales. Moisture resistance prevents rot in damp farm environments.
• Recreational Utility: Setting up camping gear (e.g., tent guy lines, gear-hanging ropes), creating temporary clotheslines, or securing outdoor furniture. Easy handling makes it user-friendly for casual outdoor use.
• Light Industrial Tasks: Guiding lightweight materials (e.g., fabric rolls, small packages) in warehouses, or as a tag line to stabilize items during light lifting (e.g., moving small machinery parts). Its flexibility allows it to route around obstacles easily.

Since its establishment in 2005, Qingdao Jincheng Maritime Technology Co., Ltd. has been steadily advancing in the maritime technology field for nearly two decades. The company focuses on the core business of manufacturing marine supplies, always adhering to the concepts of innovation and excellence, and is committed to providing comprehensive and high-quality products and services to the global maritime industry.

In terms of product manufacturing, the company has a rich and diverse product line, covering marine navigation equipment, marine safety protection supplies, marine interior decorations, and various functional accessories for ships. From precise navigation instruments to sturdy and durable life-saving equipment, from comfortable and beautiful cabin interiors to efficient and practical marine tools, every product undergoes strict quality control to ensure compliance with international standards and industry specifications.

The company attaches great importance to technological research and development and innovation. It has formed a research and development team composed of senior maritime engineers, professional technicians, and innovative talents. The team continuously explores cutting-edge technologies, actively introduces new materials and processes, and continuously optimizes product performance to meet the growing intelligent and green demands of the maritime industry. At the same time, the company has established long-term and stable cooperative relationships with many well-known domestic and foreign universities and scientific research institutions. Through the collaborative innovation of industry, university, and research, it accelerates the transformation of scientific research achievements and injects a continuous stream of impetus into the company's development.

With reliable product quality, advanced technological level, and a complete after-sales service system, Qingdao Jincheng Maritime Technology Co., Ltd. has won a good reputation and wide recognition in the industry. Its products not only sell well in major domestic ports and shipbuilding enterprises but also are exported to many countries and regions overseas. The company has established long-term cooperative relationships with many internationally renowned shipping companies. Looking to the future, the company will continue to forge ahead, continuously enhance its core competitiveness, and contribute to the advancement of maritime technology and the development of the global shipping industry.