10" Cast Steel Single Bitt Mooring Bollard (Model #ICF-SB10)
The Model #ICF-SB10 is a heavy-duty 10" single bitt mooring bollard engineered to provide an unyielding structural anchor point for vessel tie-downs and lines-handling operations. Fabricated from premium marine-grade cast steel, this rugged mooring post is designed to safely distribute extreme line tension directly into the vessel’s deck plate or primary hull framing. Featuring a robust weld-down flange base and a widened top cap to prevent accidental line slip, it is built to survive relentless line abrasion, cyclic shock fatigue, and severe open-ocean weathering without the cracking risks associated with lower-grade cast irons.
Design & Function
This 10" single bitt functions as a primary lines-handling fixture on commercial workboat flats and cargo decks. By wrapping mooring lines or spring lines around the 10-inch vertical cast steel column, crew members can safely check, turn, or anchor the vessel’s position against docks, locks, or adjacent vessels. The high wall thickness and ductility of the cast steel ensure that severe line friction will not wear down or deform the structural core, maintaining reliable docking security under extreme tidal changes and rushing currents.
Intended Use Cases:
- Mooring line anchor point for mid-ship and quarter-deck vessel tie-downs.
- Localized line turning points for working rigging and auxiliary winch lines.
- Temporary line securement on inland and offshore commercial barges.
- Main deck refits on existing utility hulls requiring commercial-grade bollard tie-downs.
Primary Industries & Vessel Types:
- Inland river pushers, commercial harbor tugs, and offshore supply vessels (OSVs).
- Flat-deck cargo barges, hopper barges, and liquid chemical transport vessels.
- Commercial ocean trawlers, purse seiner fishing vessels, and longliners.
- Marine infrastructure equipment, dredges, floating cranes, and spud barges.
Key Features
- High-Strength Cast Steel Construction: Offers massive structural tensile strength and exceptional impact resistance, ensuring reliable load-bearing capabilities under extreme line tension.
- Line-Retaining Top Cap Profile: Features an flared top diameter designed to provide an absolute mechanical barrier that prevents high-tension lines from slipping off under extreme working angles.
- Heavy Weld-Down Base Flange: Designed with a generous mounting footprint to allow for full-penetration welding directly into steel decks, optimizing load transfer into underlying structural beams.
Installation
- Deck Prep & Alignment: Position the #ICF-SB10 bitt on the deck plate exactly above the underlying structural framing or gusset plates specified by the naval architect, ensuring the footprint area is ground down to clean white metal.
- Under-Deck Reinforcement Check: Verify that the deck thickness beneath the cast steel base satisfies the required structural class rules, adding insert doubler plates or carling angles to the under-deck framing if necessary to prevent deck flexing.
- Welding Execution & Pre-Heat: Pre-heat the cast steel base and steel deck plate to recommended shipyard temperatures matching the specific steel grade metallurgy, then execute a continuous multi-pass structural fillet weld around the entire flange perimeter using low-hydrogen electrodes (AWS D1.1 standard).
- Post-Weld Cooling & Inspection: Allow the completed weldment to cool slowly and naturally under an insulating blanket to prevent thermal stress fractures, then perform visual or magnetic particle NDT inspection to verify full weld integrity.
- Corrosion Protection Sealing: Thoroughly wire-brush any residual weld slag away, and immediately apply a high-solids marine primer or epoxy topcoat over the raw weld seams to seal out moisture and guard against atmospheric rust.