UHWMPE mooring rope, short for Ultra - High Molecular Weight Polyethylene mooring rope, is a revolutionary product in the field of marine and industrial ropes. It is crafted from ultra - high molecular weight polyethylene fibers, which endow the rope with exceptional properties.
1.1 Structure
Typically, UHWMPE mooring ropes come in 8 - strand or 12 - strand braided structures. This braided construction ensures high strength and excellent resistance to abrasion. For example, the 12 - strand structure distributes the load evenly across the rope, enhancing its overall durability. In some cases, a protective sleeve can be added according to customer requirements. This sleeve further improves the rope's wear - resistant capacity, especially in harsh marine environments where the rope may rub against rough surfaces.
1.2 Material Properties
- High Strength: UHWMPE mooring ropes are incredibly strong. They can have a breaking strength that is 1.5 times higher than that of a steel wire rope of the same diameter. This high strength makes them suitable for heavy - duty applications such as mooring large ships, towing operations, and in ocean engineering projects.
- Low Density: With a specific gravity of approximately 0.97 g/cm³, UHWMPE ropes are lightweight and float on water. This property not only simplifies handling but also reduces the overall weight load on vessels and structures. For instance, in offshore wind farm installations, the use of lightweight UHWMPE mooring ropes can decrease the required foundation strength, leading to cost savings.
- Good Melting Point: The melting point of UHWMPE is around 145 °C. Although this may seem relatively low compared to some industrial materials, in normal operating conditions for mooring ropes, it provides sufficient heat resistance. However, it is important to note that the rope should avoid exposure to extreme heat sources.
- Outstanding Wear Resistance: UHWMPE has excellent wear - resistant properties. In marine applications where the rope is constantly exposed to water, sand, and the movement of ships, this high wear resistance ensures a long service life. It can withstand the abrasive forces better than many traditional rope materials, reducing the frequency of rope replacements.
- UV Resistance: The material has good resistance to ultraviolet rays. In outdoor and marine environments where the rope is exposed to sunlight for extended periods, this property helps prevent the rope from degrading due to UV radiation, maintaining its strength and integrity over time.
- Corrosion Resistance: UHWMPE is highly resistant to corrosion from seawater and various chemicals. This makes it an ideal choice for marine and industrial applications where exposure to corrosive substances is common.
2. Applications
- Marine Mooring: UHWMPE mooring ropes are extensively used in the shipping industry for mooring vessels. Whether it's a small fishing boat or a large container ship, these ropes can securely hold the vessel in place. Their high strength and durability ensure that the ship remains moored even in rough weather conditions, such as strong winds and high waves.
- Offshore Operations: In the offshore oil and gas industry, UHWMPE mooring ropes are used to secure offshore platforms, drilling rigs, and floating production storage and offloading (FPSO) vessels. They can withstand the harsh marine environment and the dynamic loads associated with offshore operations. Additionally, in the emerging field of offshore wind energy, these ropes are used to moor wind turbine platforms, contributing to the development of clean energy.
- Towing: Due to their high strength - to - weight ratio, UHWMPE ropes are well - suited for towing operations. They can be used to tow ships, barges, and other marine structures. The lightweight nature of the rope makes it easier to handle during towing, and its high strength ensures that it can withstand the pulling forces without breaking.
- Other Applications: UHWMPE mooring ropes also find applications in areas such as construction (for lifting and securing heavy objects in some cases), high - altitude operations protection (where their high strength and lightweight properties are beneficial), and luxury yacht dock lines (providing a reliable and aesthetically pleasing mooring solution).
| Stock No. |
Size (MM) |
Circ.(MM) |
Weight |
BS (KN) |
| G/M |
KG/220M |
Unsplice |
Splice |
| HS5030101 |
6 |
18.8 |
23 |
5.1 |
40 |
36 |
| HS5030102 |
8 |
25.1 |
40 |
8.8 |
69 |
62 |
| HS5030103 |
10 |
31.4 |
61 |
13.4 |
105 |
95 |
| HS5030104 |
12 |
37.7 |
87 |
19.1 |
150 |
135 |
| HS5030105 |
14 |
44 |
117 |
25.7 |
200 |
180 |
| HS5030106 |
16 |
50.2 |
151 |
33.2 |
255 |
230 |
| HS5030107 |
18 |
56.5 |
190 |
41.8 |
315 |
285 |
| HS5030108 |
20 |
62.8 |
232 |
51 |
380 |
340 |
| HS5030109 |
22 |
69.1 |
281 |
61.8 |
450 |
405 |
| HS5030110 |
24 |
75.4 |
331 |
72.8 |
520 |
470 |
| HS5030111 |
26 |
81.6 |
384 |
84.5 |
600 |
540 |
| HS5030112 |
28 |
87.9 |
445 |
97.9 |
685 |
615 |
| HS5030113 |
30 |
94.2 |
506 |
111.3 |
775 |
700 |
| HS5030114 |
32 |
100.5 |
575 |
126.5 |
865 |
780 |
| HS5030115 |
36 |
113 |
720 |
158.4 |
1070 |
965 |
| HS5030116 |
40 |
125.6 |
881 |
193.8 |
1285 |
1155 |
| HS5030117 |
44 |
138.2 |
1060 |
233.2 |
1525 |
1375 |
| HS5030118 |
48 |
150.7 |
1250 |
275 |
1775 |
1600 |
| HS5030119 |
52 |
163.3 |
1460 |
321.2 |
2045 |
1840 |
| HS5030120 |
56 |
175.8 |
1690 |
371.8 |
2330 |
2095 |
| HS5030121 |
60 |
188.4 |
1930 |
424.6 |
2635 |
2370 |
| HS5030122 |
64 |
201 |
2200 |
484 |
2950 |
2655 |
| HS5030123 |
68 |
213.5 |
2480 |
545.6 |
3285 |
2955 |
| HS5030124 |
72 |
226.1 |
2780 |
611.6 |
3635 |
3270 |
| HS5030125 |
76 |
238.6 |
3090 |
679.8 |
4000 |
3600 |
| HS5030126 |
80 |
251.2 |
3430 |
754.6 |
4375 |
3940 |
| HS5030127 |
88 |
276.3 |
4170 |
917.4 |
5180 |
4660 |
| HS5030128 |
96 |
301.4 |
4970 |
1093.4 |
6040 |
5435 |
| HS5030129 |
100 |
314 |
5151 |
1133.2 |
6495 |
5845 |
| HS5030130 |
104 |
326.6 |
5555 |
1222.1 |
6960 |
6265 |
| HS5030131 |
108 |
339.1 |
5973 |
1314.1 |
7440 |
6695 |
| HS5030132 |
112 |
351.7 |
6404 |
1408.9 |
7935 |
7140 |
| HS5030133 |
116 |
364.2 |
6854 |
1507.9 |
8440 |
7595 |
| HS5030134 |
120 |
376.8 |
7316 |
1609.5 |
8960 |
8065 |
Qingdao Haosail machinery Co., Ltd. is located in Qingdao, the central ocean city in northern China, and it is a national high-tech enterprise and technology innovation enterprise. Our company focuses on the R & D and production of the intelligent solution of deep-sea aquaculture equipment. Relying on advanced technology and reliable equipment, our company has long-term in-depth cooperation with customers in more than 20 countries such as United States, Australia, Singapore, Poland and Ukraine.
Our company takes scientific and technological innovation as the driving force, inherits the enterprise culture of "Haosail, worthy of your trust", and builds the company into a brand enterprise with a sense of mission and competitiveness.
Our Comprehensive Service Offerings for customer.
At the product, we pride ourselves on providing you with the best possible support to ensure your success with our products. Our professional team is ready to offer you a full range of services, tailored to meet your specific needs. Whether you're just starting out or looking to expand your operations, our services will help you achieve your goals.
Pre-Sale Support
We understand that your success depends on having the right solution for your unique needs. That's why we offer comprehensive pre sale support to guide you through every step of the process.
Customized Design and Recommendations
Our team will work closely with you to understand your pond or site requirements, including the types of fish or shells you plan to breed, the size and layout of your site, and any specific environmental conditions. We will provide you with a tailored design that maximizes your productivity while ensuring the 'babies' are comfortable and safe.
Feasibility Study and Scheme Development
Before you even start ordering, we will conduct a detailed feasibility study to evaluate the suitability of our product for your pond or site. This will help you make informed decisions and ensure that our product meets your needs.
On-Site Survey and Recommendations
To ensure optimal results, our team will visit your site to assess the size, shape, and water quality of your pond or stie. Based on this information, we will recommend the best net cage dimensions and mesh size to suit your environment.
Cost Estimation and Proposal
We will provide you with a detailed cost estimate, including shipping, installation, and any additional customization required. Our transparent pricing will help you make confident decisions without hidden surprises.
1. How does the strength of UHWMPE mooring rope compare to traditional ropes?
As mentioned earlier, UHWMPE mooring ropes are significantly stronger than many traditional ropes. For example, compared to a steel wire rope of the same diameter, a UHWMPE rope can have a breaking strength that is 1.5 times higher. In terms of weight, for the same strength requirement, a UHWMPE rope weighs only about 1/8 of a steel wire rope. When compared to nylon or polyester ropes, for the same strength, a UHWMPE rope is 1/4 - 1/5 the weight, and compared to polypropylene ropes, it is 18% - 20% of the weight.
2. Can UHWMPE mooring ropes be used in cold or hot environments?
UHWMPE mooring ropes have a relatively wide temperature operating range. While the melting point is around 145 °C, in normal use, they can withstand temperatures well below this. However, in extremely hot environments close to or above the melting point, the rope's integrity will be compromised. In cold environments, UHWMPE ropes generally maintain their strength and flexibility. But it's important to note that if the rope is wet and then exposed to freezing temperatures, ice formation on the rope may affect its performance and handling.
3. How do I maintain UHWMPE mooring ropes?
Regular inspection is crucial. Check for any signs of wear, such as fraying of the strands, cuts, or discoloration. If a protective sleeve is present, inspect it for damage as well. Clean the rope regularly, especially if it has been exposed to dirt, sand, or chemicals. In a marine environment, rinsing with fresh water can help remove salt deposits that could potentially cause corrosion over time. Avoid exposing the rope to sharp objects that could cut or damage it. When storing the rope, it should be kept in a cool, dry place away from direct sunlight to prevent UV degradation.
4. What is the lifespan of UHWMPE mooring ropes?
The lifespan of UHWMPE mooring ropes depends on several factors, including the frequency of use, the operating environment, and the level of maintenance. In a relatively mild marine environment with proper maintenance and infrequent use, a UHWMPE mooring rope can last for many years, potentially up to 10 - 15 years. However, in harsh environments with high - stress applications, such as in areas with strong ocean currents and constant abrasion, the lifespan may be reduced to 3 - 5 years. Regular inspections and timely replacements of worn - out ropes are essential to ensure safety and reliability.
5. Are UHWMPE mooring ropes resistant to chemicals?
Yes, UHWMPE mooring ropes are highly resistant to a wide range of chemicals. They can withstand exposure to seawater, acids, alkalis, and many organic solvents without significant degradation. This chemical resistance makes them suitable for use in various industrial and marine applications where exposure to chemicals is common, such as in chemical tanker mooring or in industrial areas with chemical spills.
6. Can UHWMPE mooring ropes be customized?
Most manufacturers offer customization options for UHWMPE mooring ropes. This can include customizing the length of the rope according to specific project requirements. For example, if a particular mooring application requires a non - standard length, the rope can be made to order. Additionally, as mentioned before, the option to add a protective sleeve is a form of customization. Some manufacturers may also offer different colors or surface treatments upon request.
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