Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate

Product Details
Customization: Available
After-sales Service: Yes
Warranty: 12 Months
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  • Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
  • Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
  • Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
  • Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
  • Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
  • Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
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  • Overview
  • Product Description
  • Detailed Photos
  • Product Parameters
  • Certifications
  • Packaging & Shipping
  • Company Profile
  • Our Advantages
  • FAQ
Overview

Basic Info.

Model NO.
eye plate
Application
Marine/Mooring/Aquaculture
Standard
ASTM, GB, JIS, ISO
Customized
Customized
Surface Treatment
Galvanized
Material
Alloy
Type
Eye Plate
Shape
Triangle
Proof Load Test
Available
Production
Forging
Special Logo
Yes
Anti-Corrosion Grade
High
Transport Package
Nude
Specification
38-73mm chains
Trademark
Haosail
Origin
China
HS Code
73160000
Production Capacity
10000/Year

Product Description

Product Description

A mooring triple eye plate is a critical marine hardware component designed for securing vessels to docks, buoys, or other fixed structures during mooring operations. Characterized by its robust construction and three symmetrically arranged eyelets (or "eyes"), this device ensures reliable load distribution and enhanced safety in maritime applications.

Structure and Design
The triple eye plate typically consists of a flat, heavy-duty metal plate (often made of galvanized steel, stainless steel, or high-tensile alloy) with three reinforced circular eyelets. These eyes are strategically positioned to allow multiple connection points for ropes, chains, or synthetic mooring lines. The central eyelet is usually larger, flanked by two smaller ones, creating a triangular configuration that optimizes force distribution and minimizes stress concentration.

Key Features
1. Load Distribution: The triple-eye design enables even distribution of tension across multiple lines, reducing wear on individual components and preventing sudden failures.
2. Corrosion Resistance: Materials like 316-grade stainless steel or hot-dip galvanized coatings ensure durability in harsh marine environments.
3. Versatility: Compatible with various mooring systems, it accommodates different line configurations (e.g., breast lines, spring lines) for flexible docking setups.
4. Safety Redundancy: Multiple attachment points provide backup security, critical in dynamic sea conditions.

Applications
- Docks and Piers: Anchoring pontoons, floating platforms, or small-to-medium vessels.
- Shipboard Use: Mounted on decks or bulwarks to secure mooring lines.
- Offshore Infrastructure: Used in buoy mooring systems or permanent offshore installations.

Triple eye plates are welded or bolted onto load-bearing surfaces, adhering to marine engineering standards such as ISO 3918 or ASTM F715. Regular inspections for cracks, corrosion, or deformation are essential to maintain operational integrity.
Unlike single or double eye plates, the triple-eye variant offers superior redundancy and adaptability, making it ideal for high-load scenarios or environments prone to sudden shifts in tidal or weather conditions.

In summary, the mooring triple eye plate is a cornerstone of modern maritime safety, combining engineering precision with rugged reliability to ensure secure vessel mooring across diverse marine settings.

Detailed Photos

Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate

Product Parameters

Stock No. Chain Size(MM) A(MM) B(MM) C(MM) D(MM) Proof Load(T) Breaking Load(T) Weight(KG)
HSM030614001 38-46 320 168 50 76 81.2 106 31
HSM030614002 48-56 360 184 60 88 127 181 47
HSM030614003 58-38 430 225 80 102 190 287 90
HSM030614004 70-73 506 266 90 120 270 404 140

Certifications

Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate

Packaging & Shipping

Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate

Company Profile

Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate
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 Advantages

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
√   Overall optimization design, reduce the cost and the risk
√   Offer products and services that are better in quality or performance than those offered by the competition
√   Customer specifications strictly observed and fulfilled.

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.

Cast Steel Hot DIP Galvanized Forging Marine Mooring Triangle Three Eye Tri-Plate

FAQ

 
1. What is a mooring tri-plate?  
A tri-plate is a triangular forged component with three pinholes, designed to connect multiple mooring chains or shackles in offshore anchoring systems. It enables balanced load distribution in complex mooring configurations.

2. What materials are used?  
High-grade alloy steels (e.g., Grade R3-R5) with minimum yield strength of 860-1,100 MPa. Surface treatment includes hot-dip galvanizing for corrosion resistance in seawater.

3. How to install tri-plates?  
- Use certified shackles (SWL ≥ chain MBL)  
- Align pinholes perpendicular to load direction  
- Apply torque to 30% of pin's ultimate tensile strength  
- Secure with split pins/cotter keys  

4. What inspections are required?  
- Annual NDT: MPI for cracks, ultrasonic thickness testing  
- Measure wear: ≤10% diameter reduction on pins/holes  
- Replace if corrosion exceeds 20% cross-sectional area loss.


5. Failure modes to monitor?  
- Stress corrosion cracking at weld zones  
- Galling between pins and plate surfaces  
- Fatigue damage from cyclic wave loading  
- Hydrogen embrittlement in H2S environments  

6. Load capacity calculation?  
SWL = 0.6 × MBL (Minimum Breaking Load)  
Example: For Grade R4 (MBL=2,500 kN), SWL=1,500 kN  
-Always apply 1.5x safety factor for dynamic loads.*

7. How to select tri-plates?  
Consider:  
- Chain diameter compatibility (e.g., 84mm-152mm)  
- Working depth rating (shallow/deepwater)  
- Connector type: H-links vs Kenter shackles  
- Anti-rotation design for twist prevention.

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