4 Strands Polypropylene Polysteel Twisted Ropes 32mm​

1.General Description

QINGDAO JINCHENG MARITIME mooring rope series includes nylon, polypropylene filament, polypropylene, polypropylene/polyester blend, polyester and other varieties, which are widely used, with high strength, low elongation, wear resistance, corrosion resistance and other advantages, soft and smooth, easy to operate, and can also be used to make special anti-static ropes. The products are mainly used in ships, fishing, port loading and unloading, power construction, oil exploration, sports goods, national defense research and other fields.

1. 4-Strand Twisted/Braided Structure for Stable Load Bearing
   The 4-strand configuration (typically twisted or lightly braided) provides a stable foundation for load distribution. While it has fewer strands than higher-count alternatives (e.g., 8-strand or 12-strand), the 4-strand design ensures tension is evenly spread across its cross-section, avoiding excessive stress on single strands during mooring. This structure also maintains good shape retention—even after repeated bending around cleats or bollards—reducing the risk of deformation that could weaken the rope over time.
2. Excellent Rigidity with Moderate Flexibility for Easy Mooring Operations
   4-strand mooring rope strikes a balance between rigidity and flexibility. It is stiff enough to hold its form when secured to mooring hardware (e.g., cleats, winches), preventing accidental slippage that could compromise vessel safety. At the same time, it retains sufficient flexibility to adapt to minor vessel movements caused by waves or wind, avoiding sudden stress spikes. This makes it easy for crew to handle during docking/undocking, as it bends without kinking or becoming unmanageable.
3. High Abrasion Resistance for Marine Durability
   The tight twisting or braiding of the 4 strands creates a dense outer surface that resists abrasion—critical for marine environments where the rope often rubs against dock pilings, concrete edges, or the vessel’s hull. Unlike loosely structured ropes that fray easily, the compact 4-strand design minimizes surface wear, even with frequent contact with rough surfaces. This durability extends the rope’s service life, reducing the need for frequent replacements in daily mooring use.
4. Lightweight & Cost-Effective for Recreational/Light Commercial Use
   Compared to multi-strand ropes with more complex constructions, 4-strand mooring rope is often lighter (especially when made from materials like polypropylene or polyester) and more cost-efficient. Its simpler structure reduces manufacturing complexity, lowering production costs while still meeting the load requirements of small boats, jet skis, or small commercial vessels (e.g., fishing boats). The lightweight nature also makes it easy to transport, store, and deploy—ideal for recreational boaters who handle mooring tasks independently.
5. Easy Inspection & Maintenance for Safety
   The 4-strand structure’s simple, uniform pattern allows for quick and straightforward inspection. Crew or boat owners can easily check for signs of damage (e.g., frayed strands, cuts, or fiber degradation) before each mooring use—no need to navigate complex multi-strand designs. Additionally, 4-strand ropes are easy to clean and maintain; they can be rinsed with freshwater to remove salt, sand, or debris (common in marine environments) without damaging the structure, ensuring consistent performance over time.

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

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.