Our LTM Mooring Shackles are premium-grade connectors engineered for critical offshore, marine, and aquaculture applications. These shackles are designed to withstand extreme loads, harsh saltwater environments, and dynamic stresses, ensuring reliable performance in mooring systems, anchor chains, and heavy-duty rigging.
Key Features
- Superior Strength: Constructed from high-tensile alloy steel, offering working load limits (WLL) ranging from 50mm to 114mm chain sizes, with proof loads up to 2,160 kN (216 tons) for larger models .
- Corrosion Resistance: Hot-dip galvanized or marine-grade coatings protect against rust and corrosion in saltwater conditions.
- Certified Compliance: Approved by ABS (American Bureau of Shipping) and compliant with DNVGL-OS-E301 standards for offshore mooring systems .
- Versatile Design: Available in D-type, Round Pin, and H-type configurations to accommodate chain-to-chain, chain-to-buoy, or chain-to-anchor connections .
- Fatigue Resistance: Engineered with advanced geometry to minimize stress concentration, ensuring long service life in cyclical loading scenarios .
Applications
- Offshore platforms, FPSOs, and MODUs
- Deepwater mooring systems
- Aquaculture net pen anchoring
- Ship-to-ship transfer operations
- Heavy-duty towing and lifting
Why Choose Our LTM Shackles?
- Rigorous Testing: Each shackle undergoes proof load testing at 2x WLL to ensure structural integrity .
- Custom Solutions: Available with customized finishes, certifications, and load ratings to meet specific project requirements.
- Global Reliability: Trusted by leading marine contractors and energy companies worldwide for their durability and safety.
Stock No. |
Normal Size d(MM) |
d3(MM) |
l2(MM) |
W2(MM) |
e3(MM) |
f2(MM) |
Weight(KG) |
HSM030605001 |
16 |
22 |
139 |
83 |
29 |
50 |
1.6 |
HSM030605002 |
17.5 |
25 |
152 |
91 |
32 |
54 |
2 |
HSM030605003 |
19 |
27 |
165 |
99 |
34 |
59 |
2.6 |
HSM030605004 |
20.5 |
29 |
178 |
107 |
37 |
64 |
3.2 |
HSM030605005 |
22 |
31 |
191 |
114 |
40 |
68 |
4.1 |
HSM030605006 |
24 |
34 |
209 |
125 |
43 |
74 |
5.2 |
HSM030605007 |
26 |
36 |
226 |
135 |
46 |
81 |
6.7 |
HSM030605008 |
28 |
39 |
244 |
146 |
50 |
87 |
8.2 |
HSM030605009 |
30 |
42 |
261 |
156 |
54 |
93 |
10 |
HSM030605010 |
32 |
45 |
278 |
166 |
58 |
99 |
12 |
HSM030605011 |
34 |
48 |
296 |
177 |
61 |
105 |
14.5 |
HSM030605012 |
36 |
50 |
313 |
187 |
65 |
112 |
17 |
HSM030605013 |
38 |
53 |
331 |
198 |
69 |
118 |
20 |
HSM030605014 |
40 |
56 |
348 |
208 |
72 |
124 |
23 |
HSM030605015 |
42 |
59 |
365 |
218 |
76 |
130 |
26.6 |
HSM030605016 |
44 |
62 |
385 |
229 |
79 |
136 |
30 |
HSM030605017 |
46 |
64 |
400 |
239 |
83 |
143 |
35 |
HSM030605018 |
48 |
67 |
418 |
250 |
86 |
149 |
38.8 |
HSM030605019 |
50 |
70 |
435 |
260 |
90 |
155 |
47.5 |
HSM030605020 |
52 |
73 |
452 |
270 |
93 |
161 |
53.4 |
HSM030605021 |
54 |
76 |
470 |
281 |
97 |
167 |
56.5 |
HSM030605022 |
56 |
78 |
487 |
291 |
101 |
174 |
66.2 |
HSM030605023 |
58 |
81 |
505 |
302 |
104 |
180 |
73.5 |
HSM030605024 |
60 |
84 |
522 |
312 |
108 |
186 |
81.4 |
HSM030605025 |
62 |
87 |
539 |
322 |
112 |
192 |
90.6 |
HSM030605026 |
64 |
90 |
557 |
333 |
115 |
198 |
101 |
HSM030605027 |
66 |
92 |
574 |
343 |
119 |
205 |
105 |
HSM030605028 |
68 |
95 |
592 |
354 |
122 |
211 |
108 |
HSM030605029 |
70 |
98 |
609 |
364 |
126 |
217 |
132 |
HSM030605030 |
73 |
102 |
635 |
380 |
131 |
226 |
145 |
HSM030605031 |
76 |
106 |
661 |
395 |
137 |
236 |
153 |


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.

Haosail's Supply Chain Management Team, Quality Management System and kinds of Testing Equipments ensure complete confidence in the products and services provided, and to ensure customer satisfaction.
√ Getting things right first time
√ Know kinds of factory well, know their production capacity and advantages, resource allocation, can quick response to all kinds of problems.
√ Develop product cost model independently, get hold of product cost composition
√ Offer products and services that are better in quality or performance than those offered by the competition
√ Customer specifications strictly observed and fulfilled.
√ Sampling re-inspection for every batch of products, reduce the risk, quality guaranteed.
We can Technical Design:
Our team have a depth of technical ability and knowledge gained through many years of experience in lifting, rigging and safety. We can provide common lifting design, heavy work lifting design, and can non-standard product lifting design to meet customer needs.
We can do Training:
In order to better serve customers, our company specially organized professionals to carry out training in lifting design, lifting product introduction and use, and lifting product maintenance.
Q1: What materials are used for LTM Mooring Shackles?
A: Our LTM shackles are manufactured from high-strength alloy steel (e.g., ASTM A1001), ensuring superior tensile strength and resistance to impact and abrasion .
Q2: Are these shackles certified for offshore use?
A: Yes. Our LTM shackles are ABS-approved and comply with DNVGL-OS-E301 standards for offshore mooring systems. Certificates are available upon request .
Q3: What is the working load limit (WLL) of LTM Shackles?
A: WLL varies by size. For example, a 50mm LTM shackle has a WLL of 1,400 kN (140 tons) for Grade R3 chain, while a 114mm shackle supports 6,346 kN (634.6 tons) for Grade R4 chain .
Q4: How do I choose the right LTM Shackle for my application?
A: Consider factors like chain size, environmental conditions, and load requirements. Our team can assist in selecting the optimal model based on your specifications.
Q5: Can LTM Shackles be used in corrosive environments?
A: Yes. All shackles are coated with hot-dip galvanization or marine-grade paint to resist corrosion. For extreme conditions, stainless steel variants are available.
Q6: Do you offer custom designs or certifications?
A: Yes. We provide customized shackles with tailored finishes, load ratings, and certifications (e.g., Lloyd's Register, BV) to meet project-specific needs.
Q7: What maintenance is required for LTM Shackles?
A: Regular inspection for wear, corrosion, or deformation is recommended. Lubricate moving parts and reapply protective coatings as needed to prolong lifespan .
Q8: How long is the delivery time?
A: Standard lead times are 30-45 days, depending on quantity and customization. Rush orders may be available.
Q9: Are installation guidelines provided?
A: Yes. Detailed installation and torque specifications are included with each shipment to ensure proper and safe use.
Q10: What is the warranty for LTM Shackles?
A: We offer a 12-month warranty against manufacturing defects. Warranty terms apply to normal use and proper maintenance.