Product Details
This 4-strand twisted rope series combines a classic, reliable 4-strand twisted structure with three high-performance synthetic materials (Polyester, Nylon,
PP) and four large diameters (38mm/40mm/50mm/60mm). The design
prioritizes load-bearing capacity, durability, and adaptability to
heavy-duty scenarios—from marine operations to industrial
lifting—while the material and diameter options let users tailor
the rope to specific environmental and strength requirements. Below
are its core features and targeted uses:
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 |
- Lightweight & Buoyant: 4-strand PP (polypropylene) Danline rope leverages the inherent
lightness of polypropylene, making it significantly less dense than
water. This buoyancy ensures it floats on the water’s surface,
eliminating the risk of sinking—critical for applications where
retrieving the rope quickly (e.g., in water-based tasks) or
avoiding entanglement with underwater objects is essential. Its
lightweight nature also simplifies handling, transportation, and
storage, reducing user fatigue during extended use.
- Good Tensile Strength for Light-to-Medium Loads: The 4-strand twisted construction optimizes the load-bearing
capacity of PP Danline, enabling it to handle light to moderate
tensile forces reliably. Each strand distributes weight evenly,
preventing premature strand slippage or breakage when used for
tasks like securing small loads or temporary tie-downs. While not
designed for heavy industrial use, it offers consistent strength
for everyday, non-extreme applications.
- Excellent Resistance to Water, Chemicals, and Mildew: Polypropylene’s non-hydrophilic properties, combined with the
4-strand structure (which minimizes water absorption), make the
rope highly resistant to water damage, rot, and mildew. It also
withstands exposure to common chemicals (e.g., mild detergents,
fertilizers, or marine cleaning agents) without degrading or losing
structural integrity. This resistance ensures longevity even in
damp, humid, or chemically exposed environments.
- Abrasion Resistance for Everyday Wear: The twisted 4-strand design creates a tough, compact outer
surface that resists abrasion from rough surfaces like concrete,
wood, metal, or natural terrain (e.g., rocks, sand). Unlike thinner
or loosely constructed ropes, it withstands repeated friction
(e.g., dragging across docks or ground) without fraying,
unraveling, or losing strands—extending its service life in
high-wear, everyday scenarios.
- Cost-Effective & Low-Maintenance: PP Danline is inherently an economical material, and the 4-strand
construction balances performance with affordability, making the
rope a budget-friendly choice for non-critical applications.
Additionally, its resistance to water, mildew, and chemicals means
it requires minimal maintenance: no regular treatments (e.g.,
waterproofing sprays) or intensive cleaning are needed to preserve
its functionality, reducing long-term upkeep costs.
- Recreational Water Activities: Ideal for water-based leisure tasks such as marking swimming
areas, securing inflatable toys (e.g., pool floats, water tubes),
or serving as a tow rope for lightweight water sports (e.g.,
beginner-level water skiing for children). Its buoyancy ensures
visibility and easy retrieval, while its water resistance prevents
damage from prolonged immersion.
- Agricultural & Horticultural Use: Used in farming and gardening for tasks like staking young plants
(e.g., tomatoes, saplings), securing light irrigation hoses, or
creating temporary fencing for small livestock (e.g., chickens,
rabbits). Its chemical resistance stands up to fertilizers or
pesticides, and its lightweight nature makes it easy to install and
adjust across large outdoor areas.
- Lightweight Marine Tasks (Non-Critical): Suitable for non-essential marine uses on small boats (e.g.,
recreational kayaks, canoes) such as tying fenders to the hull,
securing personal gear (e.g., dry bags) on deck, or marking
temporary mooring spots in calm, shallow waters. Its buoyancy
avoids tangling with underwater vegetation, and its water
resistance ensures reliability in freshwater or mild saltwater
environments.
- Construction & DIY Tie-Downs: Used for temporary tie-downs in construction or DIY projects,
such as securing lightweight building materials (e.g., plywood
sheets, small lumber) during transport, or holding tools (e.g.,
hammers, drills) to workbenches. Its abrasion resistance withstands
contact with construction surfaces, and its strength is sufficient
for non-heavyweight, short-term securing needs.
- Household & Outdoor Storage: Perfect for everyday household tasks like tying down tarps over
outdoor furniture, securing luggage to roof racks (for light
loads), or organizing garage items (e.g., bundling extension cords,
tools). Its low-maintenance nature means it can be stored in
garages or sheds (even in humid conditions) without deteriorating,
and its affordability makes it a practical choice for frequent,
low-stakes use.
Company Profile
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.