12-Strand Dynema Rope 100% UHMWPE Fiber Cord Marine Mooring Line for Yachting for Piston Part

1.PHOTOS

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: UHMWPE Fiber Extrusion & Drawing

Step 2: Fiber Spooling & Strand Formation

Step 3: 12-Strand Braiding/Stranding

Step 4: Surface Treatment & Coating (Optional)

• UV Stabilization Coating: A thin, clear polymer coating is applied to resist UV degradation, critical for ropes exposed to prolonged sunlight on yacht decks or marine docks.
• Abrasion-Resistant Coating: For piston part applications (where the rope may contact metal surfaces), a wear-resistant coating (e.g., polyurethane) is added to minimize friction damage and extend service life.
• Water-Repellent Treatment: A hydrophobic finish is applied to reduce water absorption, preventing weight gain and ensuring the rope remains lightweight in marine settings.

Step 5: Quality Testing & Cutting

• Tensile Strength Test: Samples are pulled to breaking point to verify load-bearing capacity, ensuring compliance with marine and industrial requirements.
• Abrasion Test: The rope is rubbed against rough surfaces (simulating dock edges or metal piston components) to assess wear resistance.
• Dimensional Check: Diameter, length, and strand uniformity are measured to ensure consistency.
• UV Resistance Test: Samples are exposed to accelerated UV radiation to confirm long-term outdoor durability.
  Once approved, the rope is cut into custom lengths (e.g., 50m for mooring lines, shorter lengths for piston parts) and spooled or packaged for distribution.

2. Application Scope

A. Marine Mooring Lines

• Small to Large Vessels: Used as mooring lines for yachts, sailboats, powerboats, and even small commercial vessels (e.g., fishing boats). Its high tensile strength secures vessels to docks, piers, or buoys, while UHMWPE’s low stretch ensures minimal rope elongation under the pull of tides, winds, or vessel movement—preventing the boat from drifting.
• Harbor & Marina Use: Ideal for permanent or temporary mooring in harbors and marinas. Its UV resistance withstands constant sunlight, and water repellency avoids rot or mildew, even in saltwater environments. The 12-strand structure also resists abrasion from dock edges or metal cleats, extending service life.

B. Yachting-Specific Applications

• Dock Lines & Spring Lines: Serves as dock lines (to secure the yacht to the dock) and spring lines (to control fore-aft movement) during docking. Its flexibility allows easy tying of secure knots (e.g., cleat hitch), while its strength handles the dynamic forces of waves or wind gusts.
• Towing Lines for Small Watercraft: Used to tow dinghies, jet skis, or inflatable toys behind yachts. The rope’s lightweight nature (compared to traditional marine ropes) reduces handling effort, and its abrasion resistance withstands contact with water or inflatable materials.
• Emergency Lines: Functions as emergency mooring lines or tow ropes for yachts in unexpected situations (e.g., engine failure). Its high strength ensures reliability, and low stretch prevents sudden jolts that could damage the yacht or towed equipment.

C. Piston Part Applications (Industrial/Mechanical)

• Piston Component Tensioning: Used in mechanical systems to tension or secure piston-related parts (e.g., piston rings, connecting rod components) during assembly or maintenance. Its high tensile strength and low stretch ensure precise, stable tension—critical for preventing component misalignment in engines (e.g., small marine engines, industrial piston pumps).
• Piston Actuation Auxiliary Lines: In some specialized piston systems (e.g., lightweight hydraulic pistons), the rope acts as an auxiliary line to guide piston movement or absorb minor shock loads. Its abrasion resistance protects against wear from metal piston surfaces, and UHMWPE’s chemical resistance ensures compatibility with lubricants or coolants used in engine systems.
• Piston Maintenance Tools: Integrated into maintenance tools for piston disassembly/assembly (e.g., as a lifting line to carefully lower piston heads into engine blocks). Its flexibility allows maneuvering in tight engine spaces, while its strength supports the weight of small to medium piston components without stretching or breaking.

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.