Dynamic rope

polyesterabrasion-resistanthigh-resistance

Introduction
The 8-Strand and 12-Strand Polyester Mooring Rope from TOPONE is manufactured from 100% high-tenacity industrial polyester (PES) filaments. Braided construction delivers a torque-free, non-rotating rope with low elongation and predictable behavior under dynamic loads. Specific gravity is 1.38 (sinking rope). Designed for port, offshore and towage operations where low-stretch, UV and chemical resistance are required.

Key Advantages

• High strength-to-weight ratio with low overall mass for handling on deck.
• Excellent resistance to UV, saltwater and common marine chemicals.
• Consistent mechanical properties across temperature and humidity ranges.
• Cost-effective alternative to steel wire for many mooring applications.
• Ease of handling, splicing and routine maintenance.

Choosing Between 8-Strand and 12-Strand

• 8-Strand: preferred for easier handling, simpler splicing and bending around deck fittings.
• 12-Strand: preferred for superior roundness, abrasion resistance, reduced spin/rotation and enhanced load stability in high-cycle use.

Applications

• Container ship mooring and berth lines requiring low-stretch performance.
• Bulk carriers and tankers for extended port stays and chemical resistance.
• Towage, salvage and anchor handling where predictable elongation is critical.
• Port and harbour operations with frequent deployment and retrieval cycles.

Breaking Load Specifications (typical)

• 20 mm — Circumference 2-1/2 in; Weight/200 m 60.6 kg; Breaking Load 62.3 kN (6.36 t)
• 40 mm — Circumference 5 in; Weight/200 m 243 kg; Breaking Load 235 kN (23.98 t)
• 60 mm — Circumference 7-1/2 in; Weight/200 m 546 kg; Breaking Load 489 kN (49.90 t)
• 80 mm — Circumference 10 in; Weight/200 m 970 kg; Breaking Load 867 kN (88.47 t)
• 100 mm — Circumference 12-1/2 in; Weight/200 m 1,500 kg; Breaking Load 1,340 kN (136.74 t)
• 140 mm — Circumference 17-1/2 in; Weight/200 m 3,129.8 kg; Breaking Load 2,523 kN (257.45 t)

Standard Sizes and Typical Uses

• 20 mm — small vessels, auxiliary lines.
• 40 mm — medium vessels, general mooring.
• 60 mm — large vessels, primary mooring lines.
• 80 mm — very large vessels, heavy-duty mooring.
• 100 mm — mega-vessels, extreme-duty applications.
• 140 mm — ultra-heavy-duty and specialized mooring systems.

Material Specifications

• Fiber: premium-grade high-tenacity polyester (PES), 100% industrial filaments.
• Construction: 8-strand or 12-strand braided.
• Lay direction: right-hand or left-hand (customer specified).
• Rope diameter tolerance: ±3% of nominal.
• Weight tolerance: ±5% per 200 m.
• Color: typically white or natural; custom colors available.
• Surface finish: smooth, uniform.

Performance Specifications

• Minimum breaking load: as specified per diameter (see table above).
• Elongation at break: typically 12–20%.
• Elongation at 50% MBL: <3% (low-stretch characteristic).
• UV resistance: retains ≥90% strength after 500 h accelerated UV (ASTM G154).
• Abrasion and chemical resistance: tested per ISO standards; suitable for marine environments.
• Water absorption: <1% weight gain after 24 h immersion.
• Service temperature range: -20°C to +60°C (-4°F to +140°F).

Elongation Characteristics (typical)

• 10% MBL — <0.5% elongation (8- and 12-strand)
• 25% MBL — <1% elongation
• 50% MBL — <3% elongation
• 75% MBL — 5–8% elongation
• At breaking load — 15–20% elongation

Comparison: 8-Strand vs 12-Strand

• Flexibility: 8-strand higher; easier bending around equipment.
• Load distribution: 12-strand superior; smoother load sharing.
• Roundness and abrasion resistance: 12-strand superior.
• Handling and splicing: 8-strand easier and faster to splice.
• Spin/rotation resistance: 12-strand superior.
• Cost: 8-strand more economical.

Diameter Scaling Properties

• Breaking load and weight per unit length scale approximately with diameter².
• Bending stiffness scales with diameter⁴.
• Abrasion resistance scales roughly with diameter.

Standards & Compliance
Manufactured and tested to relevant industry standards including ISO 1209, EN 1891, ISO 1419, ASTM G154 and ISO 5470. Meets classification society and port equipment requirements for mooring rope performance.

Technical specifications

• Denomination: Polyester mooring rope (8-strand or 12-strand braided).
• Material: Premium-grade polyester (PES), 100% industrial filaments.
• Specific gravity: 1.38 (sinking).
• Elongation at break: 12–20% typical.
• Elongation at 50% MBL: <3%.
• Diameter tolerance: ±3%.
• Weight tolerance: ±5% per 200 m.
• UV resistance: ≥90% strength retention after 500 h accelerated UV.
• Water absorption: <1% after 24 h immersion.
• Temperature range: -20°C to +60°C.
• Standards: ISO 1209, EN 1891, ISO 1419, ASTM G154, ISO 5470.