10" Cast Steel Double Bitt Mooring Bollard with Horns (Model #ICF-40A)
The Model #ICF-40A is a heavy-duty 10" cast steel double bitt mooring bollard with horns, engineered to withstand severe multidirectional line tension during high-tonnage commercial docking, towing, and mooring operations. Fabricated from premium marine-grade cast steel, this dual-column bollard features an integrated, heavy-duty structural crossbar horn designed to handle massive hawser lines without structural warping. Its expanded weld-down foundation base is optimized to distribute intense cyclic mooring forces evenly into the vessel's primary deck stringers and internal hull framing, providing a physical mechanical block that prevents lines from riding up or slipping off the posts under steep working angles.
Design & Function
This 10" double bitt functions as a primary high-load line anchor and turning point on commercial workboats and cargo transport barges. By cross-weaving mooring lines around the dual 10-inch cast steel columns in a standard figure-eight pattern and locking them beneath the extended crossbar horns, crew members gain extreme mechanical friction to smoothly check, ease, or dead-weight secure the vessel against strong tides and surging river currents. The rugged cast steel metallurgy ensures that intense rope abrasion will not score, gouge, or structurally weaken the columns over long ocean-going lifecycles, while the integrated horn configuration provides ultimate line security during fluctuating tidal changes.
Intended Use Cases:
- Primary bow, stern, and mid-ship tie-down points for towing and docking operations requiring permanent line securement.
- Cross-weave mooring line management on liquid transport and heavy aggregate cargo barges.
- Main deck lines-handling center for offshore supply vessels and harbor towboats.
- High-load line anchors for heavy marine engineering and infrastructure equipment.
Primary Industries & Vessel Types:
- Inland river pushers, harbor tugs, and articulated tug-barge (ATB) units.
- Ocean-going ocean tugs and offshore supply vessels (OSVs).
- Commercial ocean-going cargo ships, hopper barges, and deck barges.
- Marine infrastructure machinery, dredges, and floating platforms.
Key Features
- Premium Cast Steel Construction: Offers superior structural yield strength and high ductility compared to cast irons, preventing catastrophic fracture risks under sudden line shock loads.
- Integrated Crossbar Locking Horns: Features a heavy-duty cast crossbar designed to facilitate secure cross-weave rope tying and prevent high-tension lines from slipping vertically off the columns during steep mooring angles.
- High-Capacity Dual Column Profile: Allows for simultaneous management of multiple independent mooring lines or spring lines on high-traffic work deck quarters.
Installation
- Deck Layout & Framing Realignment: Position the #ICF-40A double bitt precisely above a primary transverse or longitudinal deck girder assembly as designated by the naval architect, grinding the deck white metal clean.
- Under-Deck Structural Reinforcement: Ensure the deck plate section contains a heavy structural insert or doubler plate beneath the bollard footprint to safely absorb and dissipate the vertical tension loads.
- Pre-Heat & Welding Protocol: Pre-heat the heavy cast steel base and matching deck plate to the specified metallurgical temperature before executing a full-penetration, multi-pass structural fillet weld using low-hydrogen steel electrodes (AWS D1.1 standard).
- NDT Weld Quality Inspection: Allow the completed assembly to cool slowly under an insulated thermal blanket, then complete visual and magnetic particle NDT checking to ensure zero weld cracks or inclusion defects.
- Marine Epoxy Topcoat Sealing: Wire-brush away all residual weld slag, clean the area, and immediately coat the raw weld lines with high-solids cold-galvanizing compound or premium marine primer to seal out rust.