Anti Snap Back Mooring Rope

Q: What Is Snap-Back Risk in Mooring Operations?

During mooring operations, if your mooring line is overloaded beyond its breaking strength, it may fail and snap back, and creates a serious risk to your crew and equipment. Steel wire mooring ropes are particularly hazardous due to their low elongation, it can release stored energy violently upon failure. Traditional HMPE, PP, and polyester mooring ropes can also generate recoil forces. To reduce snap-back risk, Duracordix Anti Snap-Back Mooring Ropes incorporate a specially designed high-elongation(up to 30%) nylon core that absorbs and dissipates stored energy, it can keep a more controlled recoil and safer mooring operations.

Q: How about your lead time?

Duracordix understands your concerns about lead time, especially if your project is urgent. when we have stock, we can arrange the delivery in 2 days and if there is no stock, we can produce it for you based on your purchase quantity; the time may range from 6 days to 50 days.

Q: What is the best rope for Anti snap back mooring?

UHMWPE, as a material, boasts a range of advantages over traditional netting materials. It's notably lightweight, has unparalleled abrasion resistance, and tends to have a longer lifespan. This translates into more efficient fishing operations, reduced replacement costs, and enhanced overall value.

Q: How Does Duracordix Handle Quality Issues?

While Duracordix maintains strict quality control throughout our whole process of production, quality issues may occasionally occur.Duracordix stands fully behind the quality of our synthetic mooring lines and will take responsibility for any verified quality issue. To make a fair and efficient resolution, Duracordix follows a simple process like below:Please provide us some photos and videos of the failed synthetic mooring line so our technical team can investigate the root cause of the issue. It can help us distinguish product-related defects from improper handling or operational factors.Within 2 hours of getting the necessary information, Duracordix will provide you an initial response and give you a suitable solution to minimize your potential downtime or loss.After completing this, we will work closely with you to provide an appropriate compensation or replacement plan.We will also implement corrective actions to prevent similar issues from occurring in the future.Duracordix is committed to providing you the technical support, service, and compensation you deserve.

Reduce mooring-related injury and fatality risks. Ensure Your Mooring Safety

Anti Snap Back Mooring Rope

Duracordix Anti Snap Back (ASB) Mooring Ropes are engineered to reduce snap-back risks during your mooring operations. When rope fails and breaks, the anti-coil mooring rope can gradually absorb and dissipate recoil energy; it helps you minimize hazards to your crew and equipment while ensuring your safer mooring operations.

Duracordix anti-recoil mooring ropes have a dual-structure energy absorption design; they combine a 12-strand single-braided rope with an independently structured 3-strand nylon core.

The 12 strand braided layer is available in two options:

HMPE ASB Mooring Rope made from high-strength UHMWPE fiber
PP & PET ASB Mooring Rope made from blended PP and PET fibers

Types Of ASB Mooring Rope

HMPE ASB Mooring Rope

Features:

Material: 12-strand UHMWPE rope + 3-strand nylon rope core
Specific Gravity: 0.97 (< 1, it floats)
Melting Point: ~145°C-150°C
Elongation at Break: 3%–5%
Abrasion Resistance: Very good
UV Resistance: Excellent
Chemical Resistance: Excellent

PP & PET ASB Mooring Rope

Features:

Material: 12-strand PP & PET mixed rope + 3-strand nylon rope core
Specific Gravity: 0.98 (< 1, it floats)
Melting Point: ~165/260°C
Elongation at Break: 18%–20%
Abrasion Resistance: Good
UV Resistance: Good
Chemical Resistance: Good

Key Advantages

High Strength-to-Weight Ratio: UHMWPE rope is 10 to 15 times stronger than steel wire rope at the same weight. At the same strength , it weighs only 1/7 of steel wire rope, it's very lightweight and easy for you to handle
Lower Stored Energy Compared to Wire Rope: Unlike steel wire ropes, UHMWPE ASB mooring ropes release recoil energy slowly and with minimal snap-back force during failure, it improves safety in your FPSO mooring operations.
Enhanced Crew Safety in Snap-Back Zones: Reduced recoil mooring line reduces the risk exposure in snap-back zones and ensures your deck safety compliance under OCIMF MEG4 guidelines.
Reduced Vessel Downtime: it's lightweight and easy to handle help reduce your mooring time and downtime caused by rope recoil accident.
Lower Total Cost of Ownership (TCO): It saves your time for mooring operations as it's lightweight, and the snap-back risk also lowers your overall lifecycle cost.
Easy Inspection & Maintenance: it does not rust or corrode, and it is very easy for you to inspect the rope damage, wire, and fiber degradation visually.

How Anti Snap Back Rope Works

1. Normal Load Distribution: During normal mooring operation, the 12-strand HMPE rope or 12-strand PP & PET mixed rope carries the working load; it provides you high strength and controlled elongation. Meanwhile, the internal 3-strand nylon core remains unloaded.

2. Overload Failure: When the mooring rope is subjected to overload, your entire rope system (including the outer 12-strand rope and internal nylon core) will break and fail

3. Energy Absorption & Reduced Snap-Back: As the rope fails, the outer 12-strand rope breaks first, while the internal nylon rope core can absorb a large amount of stored energy due to its high elongation (up to 30%). This significantly reduces snap-back force and helps you protect crew members and equipment.

Technical Specifications

UHMWPE ASB Rope Specifications

Diameter (mm)	Circumference (inch)	Linear Density (ktex)	MBL (kN)	Breaking Strength (Ton)	ASB Core Dia (mm)
40	5	920	1224	124.8	8
44	5-1/2	1120	1440	146.8	10
48	6	1320	1680	171.3	10
52	6-1/2	1540	2136	217.8	12
56	7	1810	2268	231.3	12
60	7-1/2	2090	2580	263.1	12
64	8	2350	2868	292.5	12
72	9	2970	3552	362.2	14
80	10	3670	4296	438.1	14
88	11	4460	5160	526.2	14
96	12	5300	6264	638.8	16

Note: other sizes are available upon your request

PP & PET Mixed ASB Rope Specifications

Diameter (mm)	Circumference (inch)	Linear density (ktex)	MBL (kN)	MBL (Metric Tons)	ASB Core Dia (mm)
40	5	915	319	32.5	8
44	5-1/2	1090	363	37	10
48	6	1320	453	46.2	10
52	6-1/2	1500	526	53.6	12
56	7	1790	608	62	12
60	7-1/2	2005	692	70.6	12
64	8	2260	775	79	12
72	9	2840	971	99	14
80	10	3490	1177	120	14
88	11	4200	1422	145	14
96	12	5000	1687	172	16

Comparison To Mooring Wire Rope

Comparison Item	Steel Wire Mooring Rope	UHMWPE Anti Snap Back Mooring Rope	PP & PET Anti Snap Back Mooring Rope
Weight	Very Heavy	Extremely Lightweight	Very Light
Strength	High	Super High	Medium to High
Snap-back Risk	Very High	Very Low	Low
Crew Safety	Not Safe	The Safest Solution	Safer Than Steel Wire Mooring Rope
Handling	Difficult to handle	Easy To handle	Easy To handle
Water Absorption	No	No	Low
Floating Capability	No	Yes	Yes
Mooring Efficiency	Low	High	Higher than steel, lower than UHMWPE
Maintenance	High	Low	Low
Service Life	Medium	Long	Medium to Long
Compliance Trend	Traditional	OCIMF/MEG4 Aligned	OCIMF/MEG4 Aligned
Typical Applications	Traditional Marine Mooring	LNG / FPSO / Tanker / Offshore	Ports / Tugboats / Commercial Vessels
Cost	Medium	High	Low Cost

General Applications

FPSO Mooring Systems

Container Ports

Oil & Gas Terminals

Ship-to-Ship (STS) Transfer Operations

Tug & Towing Operations

Container Ports: It keeps your container vessels stable and ensures you a safe mooring operation during berthing and unberthing.

FPSO Mooring Systems: Our snap-back arrestor rope helps you absorb dynamic loads from waves, currents, and vessel motion. It also reduces rope recoil accidents while you’re doing FPSO mooring.

Tug & Towing Operations: It helps you minimize shock loads and reduce your snap-back risk during tug-towing operations.

Oil & Gas Terminals: It helps you improve operator and equipment safety in the mooring operation for tankers and offshore vessels.

Ship-to-Ship (STS) Transfer Operations: It can help you absorb vessel movement and ensure stability during cargo transfer operations. It also reduces the snap-back hazards in your STS mooring operations.

LNG Terminals: Our low-recoil mooring rope supports you with safer mooring operations for LNG carriers,.

Standards & Certifications

Duracordix anti snap back mooring rope is type approved by DNV, ABS, CCS, RINA, and LR etc. and meets standards OCIMF MEG4, ISO 2307, and IMCA Guidelines.

ClassNK-Certificate-Duracordix-Marine-Rope

OEM Service

By Duracordix

Customized Anti-Snapback Mooring Rope:

Material: Duracordix uses high-quality UHMWPE fiber and blended PP & PET fiber or HD polyester rope to meet your unique need, no matter if you’re using it in tug towing, FPSO mooring, or anything else.

Diameter & Length: We can customize the diameter and length of your anti-recoil mooring rope. Diameter can range from 20 mm to 200 mm; length from 110 m to 220 m; or something else entirely. Duracordix also provides custom splicing & terminations.

Color & Coating Options: Duracordix customizes your reduced snapback rope in colors you prefer for better visibility. Our DMX coating option can also enhance UV radiation block up to 90% and prolong your mooring rope service life up to 50%.

Chafe Protection: To protect your MEG4-compliant mooring line better, we can provide you a customized chafe guard for your mooring lines to improve its wear resistance and prolong your rope’s lifespan at least 100%

Why Choose Us

This is the heading

Low Recoil Mooring Rope

FAQs

Answers to Your Energy Absorbing Mooring Rope and Questions – Get Informed!

What Is Snap-Back Risk in Mooring Operations?

During mooring operations, if your mooring line is overloaded beyond its breaking strength, it may fail and snap back, and creates a serious risk to your crew and equipment.

Steel wire mooring ropes are particularly hazardous due to their low elongation, it can release stored energy violently upon failure. Traditional HMPE, PP, and polyester mooring ropes can also generate recoil forces.

To reduce snap-back risk, Duracordix Anti Snap-Back Mooring Ropes incorporate a specially designed high-elongation(up to 30%) nylon core that absorbs and dissipates stored energy, it can keep a more controlled recoil and safer mooring operations.

How about your lead time?

Duracordix understands your concerns about lead time, especially if your project is urgent. when we have stock, we can arrange the delivery in 2 days and if there is no stock, we can produce it for you based on your purchase quantity; the time may range from 6 days to 50 days.

What is the best rope for Anti snap back mooring?

UHMWPE, as a material, boasts a range of advantages over traditional netting materials. It's notably lightweight, has unparalleled abrasion resistance, and tends to have a longer lifespan. This translates into more efficient fishing operations, reduced replacement costs, and enhanced overall value.

How Does Duracordix Handle Quality Issues?

While Duracordix maintains strict quality control throughout our whole process of production, quality issues may occasionally occur.

Duracordix stands fully behind the quality of our synthetic mooring lines and will take responsibility for any verified quality issue. To make a fair and efficient resolution, Duracordix follows a simple process like below:

Please provide us some photos and videos of the failed synthetic mooring line so our technical team can investigate the root cause of the issue. It can help us distinguish product-related defects from improper handling or operational factors.
Within 2 hours of getting the necessary information, Duracordix will provide you an initial response and give you a suitable solution to minimize your potential downtime or loss.
After completing this, we will work closely with you to provide an appropriate compensation or replacement plan.
We will also implement corrective actions to prevent similar issues from occurring in the future.

Duracordix is committed to providing you the technical support, service, and compensation you deserve.