JIS F3410 Type E Forging Steel Oval Eye Plate O Ring Ship Mooring Equipment

JIS F3410 Type E Forged Oval Eye Plate | O-Ring Attachment for Ship Mooring Equipment

Product Overview

The JIS F3410 Type E forged oval eye plate is a welded attachment fitting used on ship structures for fixing rope terminals, shackles, pulleys, or similar connection hardware. It is normally selected where the vessel drawing requires a compact oval eye plate with a defined permissible load, controlled eye opening, weld leg, and smooth finished surface.

This small-size range covers nominal No. 0.5, 1, and 2 with permissible loads from 4.9 kN to 19.6 kN. The eye plate should be installed only on a suitable ship structure with verified weld detail, surrounding reinforcement, and approved load direction. It should not be treated as a general lifting lug or as a substitute for a project-approved lifting pad eye unless the design drawing, class approval, and inspection scope confirm that use.

Quick Specifications

• Product type: Forged oval eye plate / O-ring attachment → welded connection point for rope terminals, shackles, pulleys, and mooring-related fittings on ship structures.
• Standard and supplied type: JIS F3410-1999 Type E → used for standard-based eye plate selection; final type designation should be checked against the project drawing before production.
• Nominal No. range: 0.5 / 1 / 2 → compact low-load range for small attachment positions where space and weld size are limited.
• Permissible load range: 4.9 to 19.6 kN → selection value for the eye plate; do not mix it with rope breaking load, test load, or project lifting SWL.
• Main dimensions: d, L, H, R, D, T, and welding leg f → key data for webpage drawing, weld planning, and quotation confirmation.
• Material options: mild steel, C-Mn steel forging, or stainless steel → final material grade and weldability requirement should be confirmed according to the vessel specification.
• Surface condition: finished eye plate surface to be free from visible cracks and flaking → important for inspection acceptance and safe connection surface quality.
• Surface treatment: Sa 2.5 blasting + one layer epoxy shop primer as reference → final coating system or stainless steel finishing should follow the project requirement.

Main Technical Parameters

Selection & Inquiry Guide

Step 1: Confirm JIS F3410 Type E and nominal No. 0.5 / 1 / 2 according to the vessel drawing, required permissible load, and connection hardware.

Step 2: Confirm the actual use: rope terminal fixing, shackle connection, pulley connection, mooring-related attachment, or other ship structure connection point.

Step 3: Confirm installation position, surrounding structure, reinforcement, weld leg f, load direction, and whether the eye plate is installed on deck, bulkhead, or another approved structure.

Step 4: Confirm material requirement: mild steel, C-Mn steel forging, stainless steel, or the exact material grade required by the owner, shipyard, or class society.

Step 5: Confirm surface treatment, coating system, inspection scope, material certificate, maker certificate, and class certificate requirement before quotation.

Step 6: Provide quantity, delivery destination, required delivery time, installation drawing, mating shackle / rope terminal information, and reference photos if available.

Structure

Forged oval eye body | Smooth eye opening | Welded attachment base | Welding leg f | Rounded transition area | Finished connection surface | Shop primer or specified surface treatment

Forging, Welding & Engineering Advantages

• Forged steel construction supports a compact connection shape with controlled thickness, rounded transitions, and better suitability for small welded attachment points than a loose plate cut-out.
• The oval eye opening provides a defined connection area for shackles, rope terminals, or pulley fittings, helping the shipyard keep the connection hardware aligned with the intended load direction.
• The specified welding leg f provides a clear reference for installation discussion, but the final weld detail, weld length, and surrounding reinforcement should still be checked by the shipyard or design office.
• Smooth transitions around the eye and base area help reduce local sharp edges and support more reliable connection hardware seating during service.
• The supplied surface requirement that finished surfaces are free from visible cracks and flaking is important for inspection, coating adhesion, and long-term shipboard service.
• Permissible load is stated as a selection value for the eye plate, not as rope MBL, test load, or unrestricted lifting SWL. Project approval should define the actual allowable use.
• The three-size range is useful for small vessels, workboats, service craft, and compact shipboard attachment locations where a smaller welded eye plate is required.

Custom Attributes

• Standard: JIS F3410-1999 → used when the project specification calls for a JIS ship oval eye plate.
• Type: Type E as supplied → confirm against the official standard drawing and project drawing before production release.
• Nominal No.: 0.5 / 1 / 2 → select according to permissible load, connection hardware, and installation space.
• Permissible Load: 4.9 / 9.8 / 19.6 kN → selection basis for the eye plate, not a rope break load or automatic lifting SWL.
• Material: Mild steel / C-Mn steel forging / stainless steel → exact grade, traceability, and weldability requirement to be confirmed.
• Installation: Welded to ship structure → deck or bulkhead reinforcement, weld procedure, and load direction should be reviewed by the shipyard.
• Surface Treatment: Sa 2.5 blasting + epoxy shop primer → final coating system follows vessel painting specification or customer requirement.
• Certificate Requirement: Available according to project requirement → class inspection and certificate scope should be confirmed before quotation.

How It Works

Rope terminal / shackle / pulley fitting is connected to the oval eye → Load acts through the eye plate in the approved direction → Welded base transfers the force into the reinforced ship structure → Surface inspection and coating are completed according to project requirement

Applications

Ship decks | Bulkheads | Workboats | Tugboats | Service vessels | Small craft | Inland vessels | Rope terminal fixing | Shackle connection points | Pulley attachment points | Newbuilding and replacement projects

Certifications & Advantages

Certificates can be arranged according to project requirement, inspection scope, material traceability, and class society approval procedure.

Certification: CCS, NK, BV, ABS, DNV, LR, KR, IRS, RS, RINA, CRS, Makers Test Certificate.

Drawing & Photos

FAQ

Q1: What does the permissible load mean for this eye plate?

A1: The permissible load is the selection value for the eye plate under the intended standard and project condition. It should not be treated as rope breaking load, test load, or an unrestricted lifting SWL. The final application should be checked together with load direction, weld detail, structure reinforcement, and class requirement.

Q2: Can this forged oval eye plate be used as a lifting pad eye?

A2: Not by default. This page describes a ship structure eye plate for fixing rope terminals, shackles, pulleys, or similar fittings. Lifting use should be confirmed separately by project drawing, calculation, weld design, test requirement, and class approval.

Q3: What information is needed before quotation?

A3: Confirm standard, type, nominal No., permissible load, material grade, surface treatment, quantity, installation position, load direction, certificate scope, mating shackle or fitting size, delivery destination, and required delivery time.