Features and Uses of 3-Strand Twisted Rope (38mm/40mm/50mm/60mm, Polyester/Nylon/PP)

Core Features

1. Classic 3-Strand Twisted Structure: High Strength & Easy Handling

2. Three Material Options: Tailored to Environmental Needs

3. Large Diameters (38mm-60mm): Heavy-Duty Load-Bearing

• 38mm/40mm: Suitable for medium-heavy tasks (e.g., mooring small commercial ships, lifting light industrial equipment).
• 50mm/60mm: Ideal for heavy-duty applications (e.g., mooring large cargo ships, towing vehicles, or securing construction materials).
  Thicker diameters increase the rope’s cross-sectional area, directly boosting its maximum safe working load (SWL)—critical for operations where equipment, cargo, or personnel safety depends on rope reliability.

4. Durable & Long-Lasting Across Environments

• Moisture resistance: Nylon and PP repel water (PP is completely non-absorbent), while polyester absorbs minimal water—none will rot, mildew, or lose strength when wet (essential for marine or outdoor use).
• Abrasion resistance: Polyester and nylon stand up to friction against rough surfaces (e.g., ship hulls, concrete docks, metal hooks), while PP offers decent abrasion resistance for less demanding scenarios.
• Chemical resistance: All three resist common industrial chemicals (oils, solvents) and marine pollutants, making the rope suitable for ports, factories, or chemical storage areas.

5. Versatile & Cost-Effective

• Versatility: The combination of material, diameter, and 3-strand structure covers a wide range of use cases—from marine mooring to industrial lifting—eliminating the need to stock multiple rope types.
• Cost-effectiveness: PP is the most economical option for budget-sensitive, non-UV-intensive tasks; polyester and nylon offer higher performance at a moderate cost (more affordable than specialized ropes like aramid or steel cables). This makes the series accessible for both small businesses and large enterprises.

Target Uses

1. Marine Operations (Mooring, Towing, Anchoring)

• Polyester (38mm-60mm): Ideal for long-term mooring of large vessels (cargo ships, cruise ships) or offshore platforms. Its UV resistance withstands prolonged sunlight exposure, and low elasticity ensures the rope stays taut (prevents excessive vessel sway in rough seas). 50mm/60mm polyester ropes are often used for primary mooring lines in ports.
• Nylon (40mm-60mm): Perfect for towing boats (e.g., tugboats pulling barges) or emergency mooring. Its high elasticity absorbs shock from waves or sudden tugs, protecting both the rope and the vessel. 60mm nylon ropes are used for heavy-duty towing in coastal or inland waterways.
• PP (38mm-40mm): Suitable for temporary mooring of small-to-medium commercial boats (fishing vessels, ferries) in freshwater or sheltered coastal areas. Its lightweight design makes it easy to handle, though it should be stored indoors when not in use to avoid UV damage.

2. Industrial Lifting & Material Handling

• Polyester (40mm-50mm): Used to lift or secure heavy materials (steel beams, concrete blocks) in construction sites or factories. Its low stretch ensures precise positioning of loads, and abrasion resistance stands up to contact with metal or concrete.
• Nylon (50mm-60mm): Ideal for lifting fragile or high-value equipment (e.g., industrial machinery). Its shock absorption prevents damage from sudden load shifts, and high tensile strength supports heavy weights (e.g., 60mm nylon ropes can handle SWLs of 5-8 tons, depending on construction).
• PP (38mm-40mm): Used for light lifting (e.g., wooden pallets, plastic crates) in warehouses or agricultural facilities. Its affordability and lightweight design make it a cost-effective choice for non-critical lifting tasks.

3. Construction & Civil Engineering

• Polyester (40mm-60mm): Secures temporary structures (scaffolding, construction nets) or anchors heavy equipment (excavators, bulldozers) on job sites. Its UV and chemical resistance withstands harsh construction environments (dust, oils, sunlight).
• Nylon (50mm-60mm): Used for slope stabilization (e.g., securing soil nets on highway embankments) or as a backup cable for cranes. Its elasticity absorbs vibrations from construction activity, reducing wear on the rope.
• PP (38mm-40mm): Temporary fencing for construction zones or securing lightweight materials (pipes, lumber). It is easy to install and remove, making it ideal for short-term projects.

4. Agriculture & Forestry

• Polyester (38mm-40mm): Secures farm equipment (tractors, harvesters) to trailers or anchors irrigation systems (large sprinklers). Its UV resistance ensures longevity in open fields.
• Nylon (40mm-50mm): Used for logging (e.g., pulling tree trunks from forests) or securing hay bales on trucks. Its high strength and shock absorption handle the rough, uneven terrain of forestry sites.
• PP (38mm-40mm): Fencing for livestock (cattle, horses) or tying crops (e.g., supporting tomato vines). Its non-absorbent property prevents rot in damp farm environments, and it is affordable for large-scale use.

5. Recreational & Utility (Large-Scale)

• Polyester (38mm-40mm): Mooring large recreational boats (yachts, houseboats) at marinas or lakes. Its UV resistance and low stretch keep the boat stable during long-term docking.
• Nylon (40mm-50mm): Used for zip lines (commercial parks) or as a cable for small ferries (lake crossings). Its elasticity ensures a smooth ride, and high strength guarantees user safety.
• PP (38mm-40mm): Floating lines for water parks (e.g., securing inflatable slides) or temporary buoys in lakes. Its lightweight, non-absorbent property keeps it afloat, and it is easy to maintain.

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.