Welded Flipper Delta HHP Anchor for Offshore Mooring Systems | 300–27,500 kg

Product Specification

Welded Flipper Delta HHP Anchor for Offshore Mooring Systems | 300–27,500 kg

Product Overview

The welded Flipper Delta high holding power anchor is supplied for offshore mooring, dredging, mooring buoy, and floating-structure projects where seabed penetration, holding efficiency, anchor-chain connection, transport handling, and project certification are central selection factors. Its open fabricated geometry combines a broad fluke assembly, shank, and stabilizing structure to support controlled setting and penetration into suitable seabed soils.

This page covers nominal anchor weights from 300 to 27,500 kg using dimensions A–F from the supplied catalogue data. Nominal anchor weight is not a direct holding-capacity rating. Final selection should be based on the project mooring analysis, required holding load, seabed or geotechnical data, mooring-line angle, installation method, anchor-chain and shackle interface, approved manufacturer drawing, and the required class or third-party inspection scope. The product is supplied through qualified anchor factory partners; manufacturing source and certificate scope are confirmed for each order.

Quick Specifications

• Product type: Welded Flipper Delta high holding power anchor → open fluke configuration for offshore and dredging-related anchoring systems.
• Nominal weight range: 300–27,500 kg → broad selection range for project-specific temporary or permanent mooring arrangements.
• Construction: Welded plate-fabricated fluke and shank assembly → material grade, weld details, NDT, and dimensional tolerances must follow the approved drawing.
• Holding principle: Embedded fluke area mobilizes seabed resistance → actual holding capacity depends on soil, penetration depth, line angle, installation, and mooring analysis.
• Anchor-chain interface: Connection dimension F is included in the supplied table → final shackle, swivel, end link, and chain compatibility must be checked by drawing.
• Handling and transport: Dismantling or split-delivery arrangement may be available → assembly method and anchor rack requirement are subject to the selected factory design.
• Surface treatment: Black bituminous coating, anti-corrosion paint, or project-specified coating → final system should consider transport damage, immersion service, and inspection requirements.
• Certification: Class inspection and certificates can be arranged according to approved design and order scope → not all society certificates are supplied automatically.

Main Technical Parameters

Offshore Mooring Selection & Inquiry Guide

Step 1: Confirm the application: offshore unit, dredger, mooring buoy, construction spread, floating structure, temporary mooring, or permanent mooring, together with water depth and intended service life.

Step 2: Provide the required anchor holding load from the project mooring analysis, including design load case, safety factors, pretension, mooring-line type, and environmental basis where available.

Step 3: Provide seabed or geotechnical information, including soil type, layer profile, strength or density data, seabed slope, and known obstructions, because penetration and holding performance are soil-dependent.

Step 4: Confirm nominal anchor weight, approved anchor geometry, fluke-to-shank setting, anchor-handling method, chain grade and diameter, end link, shackle, swivel, and required connection dimensions.

Step 5: Confirm material grade, fabrication standard, welding procedure, NDT scope, dimensional tolerance, marking, traceability, corrosion protection, and whether transport disassembly or an anchor rack is required.

Step 6: Confirm approval and test scope before quotation: approved drawing, HHP or other class designation, proof test, material certificates, maker certificate, surveyor witness, and final documentation package.

Step 7: Provide quantity, project or vessel name, delivery destination, required delivery date, packing restrictions, lifting and handling limitations, and the relevant mooring or GA drawing.

Anchor Construction & Connection

Welded open fluke assembly | Central shank | Crown / hinge and stabilizing geometry | Chain or shackle connection point | Project-specific fluke setting | Optional transport-disassembly arrangement | Protective coating

Penetration, Holding & Handling Characteristics

• The open fluke construction allows seabed soil to flow around the anchor during setting and supports progressive penetration when the geometry is matched to the soil condition.
• A relatively large effective fluke area develops soil resistance after embedment, which is the primary basis for the high holding power concept.
• Stabilizing geometry is intended to reduce uncontrolled rolling and help the flukes maintain a suitable penetration orientation during the setting pull.
• Actual holding capacity is not determined by anchor weight alone; it is influenced by soil profile, penetration depth, fluke angle, line uplift, installation load, anchor geometry, and the selected design safety factors.
• The fluke-to-shank arrangement should be selected or confirmed for the project seabed and approved design. A catalogue anchor should not be assigned a universal holding value without project verification.
• Deployment, proof setting, retrieval, deck handling, and transport require a project-specific anchor-handling procedure matched to the anchor weight, vessel equipment, lifting points, and connection arrangement.

Fabrication, Testing & Supply Control

• Welded fabrication requires controlled plate cutting, forming, fit-up, shank and fluke alignment, and dimensional inspection so the approved geometry is maintained.
• The supplied specification lists mild steel and stainless steel; the final grade, mechanical properties, weldability, toughness, corrosion allowance, and class acceptance must be confirmed. HHP anchors are normally dependent on approved high-strength or high-tensile material specifications rather than a generic material description.
• WPS / PQR, welder qualification, preheat and heat-input control, and NDT of critical welds should follow the approved manufacturing and class inspection plan.
• Proof testing, holding-power verification, material testing, and surveyor attendance are project- and class-dependent. They should be defined before purchase and are not assumed as standard deliverables.
• The chain connection must be checked as a complete load path, including anchor connection, shackle pin, end link, swivel or forerunner, chain grade, and any dimensional transitions.
• As this product is supplied through anchor factory partners, the quotation should identify the manufacturing source, approved drawing, certificate issuer, test scope, and document traceability applicable to the offered anchor.

Custom Attributes

• Product Type: Welded Flipper Delta HHP anchor → fabricated open-fluke anchor for offshore mooring and dredging-related applications.
• Supply Status: Distributor / project supply → the product is sourced from qualified anchor manufacturers and is not presented as in-house manufactured.
• Nominal Weight: 300–27,500 kg → select by engineered holding requirement, seabed condition, installation method, and approved anchor design.
• Construction: Welded steel fabrication → critical geometry, weld quality, NDT, and dimensional control follow the approved drawing and inspection plan.
• Material: Mild steel / project-approved high-strength steel; stainless steel subject to confirmation → exact grade and class acceptance are required before order.
• Holding Capacity: Project-specific → nominal weight must not be converted directly into a guaranteed holding load without mooring and geotechnical verification.
• Chain Connection: Dimension F plus approved connector detail → chain diameter, grade, end link, shackle, and swivel must be confirmed as one system.
• Surface Treatment: Black bituminous paint, anti-corrosion paint, or customized coating → final coating and inspection follow the project exposure and specification.
• Certificate Requirement: Available according to project scope → approved design, proof test, class survey, and documentation must be stated in the purchase specification.

How It Works

Anchor is deployed with the flukes oriented toward the seabed → A controlled setting pull stabilizes and rotates the anchor into the penetration direction → Open fluke geometry enters the soil → Embedded fluke area mobilizes seabed resistance → Mooring load transfers through the shank and connector into the anchor chain → Retrieval follows the approved anchor-handling procedure

Applications

Offshore temporary mooring systems | Dredgers and marine construction spreads | Mooring buoys | Floating pontoons and marine structures | Offshore units subject to project design | Anchor-and-chain replacement packages

Certifications & Supply Scope

Classification inspection and certification can be arranged according to the approved type or project design, manufacturer approval, material traceability, proof-test requirement, and surveyor attendance. Availability is subject to order confirmation and class approval; all listed certificates are not supplied automatically.

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

Optional coordinated supply scope may include anchor chain, anchor D-shackle or project connector, swivel / forerunner, anchor rack, test certificates, packing plan, and transport arrangement, subject to confirmed specifications.

Drawing & Photos

FAQ

Q1: How should the correct Flipper Delta anchor weight be selected?

A1: Use the required holding load from the mooring analysis together with seabed data, line angle, installation method, anchor geometry, and project safety factors. Nominal anchor weight is only one selection input and should not be treated as the guaranteed holding capacity.

Q2: Does the HHP description provide a universal holding-power value?

A2: No. HHP is an anchor design or approval category, not a single kN rating that applies to every seabed and installation. The offered design, approved test basis, soil conditions, penetration, and class requirements must be confirmed for the project.

Q3: Can the anchor and anchor chain be supplied as a matched package?

A3: Yes, the supply can be coordinated when chain diameter and grade, total length, end links, shackles, swivels, proof-test and certificate scope, corrosion protection, packing, and delivery requirements are provided. The anchor connection drawing must be checked before final quotation.