- Lightweight yet Durable Construction: Made from polyethylene (PE) material, this 3-strand twisted tiger rope is significantly lighter than many traditional heaving line materials, making it easy to handle, throw, and retrieve—critical for heaving line tasks that require quick, precise deployment. Despite its light weight, the PE material and 3-strand twisted design deliver reliable durability, resisting breakage under the typical tension of heaving operations.
- Excellent Floatability in Water: A key advantage of PE material is its natural buoyancy, and the 3-strand twisted structure of this tiger rope enhances this property. It floats effortlessly on both saltwater and freshwater surfaces, eliminating the risk of the rope sinking and becoming tangled in underwater debris, propellers, or seabeds. This ensures visibility and easy recovery during marine heaving line use, such as between vessels or from a boat to shore.
- Resistance to Water, Chemicals, and Environmental Wear: PE material is inherently resistant to water absorption, preventing the rope from gaining weight, rotting, or degrading when exposed to moisture for extended periods. Additionally, it stands up to common marine chemicals, salt spray, and mild industrial contaminants, while the 3-strand twist minimizes fiber damage from UV rays and outdoor elements. This resistance ensures consistent performance in harsh, wet, or chemically exposed heaving line scenarios.
- Low Stretch for Precise Heaving Control: Unlike elastic rope materials, this PE tiger rope has minimal stretch. The 3-strand twisted design further stabilizes its structure, ensuring that when thrown as a heaving line, it maintains a predictable trajectory and tension. Low stretch also allows users to feel subtle feedback (e.g., when the rope reaches its target or catches on a cleat), enabling precise control during critical heaving tasks—such as passing lines between ships or securing a connection point.
- Abrasion-Resistant Surface for Longevity: The 3-strand twisted construction creates a tight, robust outer surface that resists abrasion. Whether it rubs against metal cleats, boat hulls, concrete docks, or rough terrain during heaving operations, the rope avoids fraying, strand separation, or surface damage. This abrasion resistance extends its service life, even with frequent use in high-wear heaving line applications.
- Marine Vessel-to-Vessel Heaving: Ideal for passing initial lines between ships (e.g., during cargo transfer, ship-to-ship refueling, or assisting a disabled vessel). Its lightweight design allows crew members to throw it accurately over long distances, while buoyancy ensures it stays visible on water if missed. Low stretch also helps maintain control when pulling heavier mooring lines across.
- Boat-to-Shore Heaving Operations: Used by small to mid-sized boats to send lines to shore (e.g., when docking at remote locations without dedicated mooring infrastructure, or during emergency shore landings). The rope’s durability resists damage from rocks, piers, or shoreline debris, and its floatability prevents loss if it drifts in shallow water.
- Industrial and Construction Site Heaving: Suitable for heaving light loads or tools across short distances in industrial settings (e.g., construction sites near water, offshore platforms, or warehouse loading docks). Its chemical resistance makes it safe for use around mild industrial fluids, and low stretch ensures tools or small parts are delivered precisely without unexpected slack.
- Recreational Watercraft Heaving: Perfect for recreational boaters (e.g., kayakers, canoers, or small sailboat owners) to pass lines between craft or to shore. Lightweight and easy to store, it is a practical accessory for casual trips—whether securing a group of boats together for a stop, or sending a line to a friend on shore to help with docking.
- Emergency Rescue Heaving Lines: Useful as a lightweight emergency line in marine or coastal rescue scenarios (e.g., throwing to a swimmer in distress, or connecting to a stranded watercraft in calm waters). Its buoyancy ensures it stays afloat near the victim, and durability means it can withstand the tension of pulling someone to safety without breaking.

2. Main performance
Material | Polyamide Multifilament | Polyamide Yarn | Polypropylene Multifilament | Polypropylene | Polyester | Polypropylene and Polyester Mixed |
Spec.Density | 1.14 no floating | 1.14 not floating | 0.91 no floating | 0.91 Floating | 1.27 no floating | 0.95 Floating |
Melting Point | 215℃ | 215℃ | 165℃ | 165℃ | 260℃ | 165℃/260℃ |
Abrasion Resistance | Very Good | Very Good | Medium | Medium | Good | Good |
U.V.Resistance | Very Good | Very Good | Medium | Medium | Good | Good |
Temperature resistance | 120℃max | 120℃max | 70℃max | 70℃max | 120℃max | 80℃max |
Chemical resistance | Very Good | Very Good | Good | Good | Good | Good |
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
Specification 规格 | PA Multifilament 锦纶复丝 | PAYarn 锦纶 | PP Multifilament 丙纶长丝 | Polypropylene 丙纶 | Polyester 涤纶 | PET/PP Mixed 丙纶/涤纶混合绳 |
Dia. | Cir | Ktex | KN | Ktex | KN | Ktex | KN | Ktex | KN | Ktex | KN | Ktex | KN |
直径 | 圆 周 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 |
4 | 1/2 | 10 | 3.7 | 10 | 2.6 | 6.3 | 2.3 | 6 | 2.1 | 12 | 2.9 | 7.0 | 2.8 |
6 | 3/4 | 22 | 7.9 | 22 | 6 | 18 | 6.5 | 17 | 5.9 | 27 | 5.6 | 17.5 | 6.8 |
8 | 1 | 40 | 13.8 | 40 | 10.9 | 32 | 11.4 | 30 | 10.4 | 48 | 10.0 | 31 | 11.9 |
10 | 1-1/4 | 62 | 21.2 | 62 | 15.7 | 47 | 16.8 | 45 | 15.3 | 76 | 15.6 | 48.5 | 18.2 |
12 | 1-1/2 | 89 | 30.1 | 89 | 24.1 | 68 | 23.9 | 65 | 21.7 | 110 | 22.3 | 69.9 | 25.7 |
14 | 1-3/4 | 121 | 40.0 | 121 | 33.0 | 95 | 32.9 | 90 | 29.9 | 148 | 31.2 | 95.1 | 34.7 |
16 | 2 | 158 | 51.9 | 158 | 42.5 | 121 | 40.7 | 115 | 37.0 | 195 | 39.8 | 124 | 44.8 |
18 | 2-1/4 | 200 | 64.3 | 200 | 53.9 | 155 | 51.9 | 148 | 47.2 | 245 | 49.8 | 157 | 56.1 |
20 | 2-1/2 | 247 | 79.2 | 247 | 66.7 | 189 | 62.6 | 180 | 56.9 | 303 | 62.3 | 194 | 68.7 |
22 | 2-3/4 | 299 | 94.0 | 299 | 80.4 | 231 | 75.0 | 220 | 68.2 | 367 | 74.7 | 235 | 82.1 |
24 | 3 | 355 | 112 | 355 | 93.6 | 273 | 87.7 | 260 | 79.7 | 437 | 89.6 | 279 | 96.3 |
26 | 3-1/4 | 417 | 129 | 417 | 111.5 | 320 | 101 | 305 | 92.2 | 512 | 105 | 328 | 113 |
28 | 3-1/2 | 484 | 149 | 484 | 127 | 373 | 115 | 355 | 105 | 594 | 120 | 380 | 130 |
30 | 3-3/4 | 555 | 169 | 555 | 143 | 425 | 132 | 405 | 120 | 682 | 134 | 437 | 148 |
32 | 4 | 632 | 192 | 632 | 161 | 483 | 146 | 460 | 132 | 778 | 154 | 497 | 167 |
36 | 4 - 1/ 2 | 800 | 240 | 800 | 200 | 614 | 182 | 585 | 166 | 982 | 190 | 629 | 210 |
40 | 5 | 987 | 294 | 987 | 241 | 756 | 221 | 720 | 201 | 1215 | 235 | 776 | 257 |
44 | 5-1/2 | 1190 | 351 | 1190 | 289 | 924 | 266 | 880 | 242 | 1468 | 275 | 939 | 308 |
48 | 6 | 1420 | 412 | 1420 | 338 | 1092 | 308 | 1040 | 280 | 1750 | 329 | 1110 | 364 |
52 | 6-1/2 | 1670 | 479 | 1670 | 393 | 1281 | 357 | 1220 | 325 | 2050 | 384 | 1320 | 424 |
56 | 7 | 1930 | 550 | 1930 | 450 | 1491 | 408 | 1420 | 371 | 2380 | 439 | 1520 | 489 |