Heavy Duty Protection Submarine Fender Superior Impact Absorption Long Service Life

Heavy Duty Protection Submarine Fender Superior Impact Absorption Long Service Life

Description

Submarine Fenders are engineered protective devices designed to support, guide, and safeguard vessels during critical operations such as launching, docking, maintenance, and offshore handling. Positioned beneath the hull or along slipways and docking structures, these fenders play a vital role in distributing loads, absorbing impact energy, and preventing structural damage to both vessels and infrastructure.

Hongruntong Marine Submarine Fenders are manufactured using high-performance marine-grade rubber compounds, reinforced with internal load-bearing structures to ensure stable performance under extreme compression and shear forces. Available in a wide range of diameters, lengths, and load ratings, the fenders can be customized to meet specific vessel dimensions, hull geometries, and operational requirements.

From a performance standpoint, these fenders deliver exceptional load capacity, excellent abrasion resistance, and long-term durability in harsh marine environments. The rubber formulation is optimized for resistance to seawater, oil, UV exposure, and temperature fluctuations, ensuring consistent mechanical properties throughout extended service life.

Functionally, Submarine Fenders act as both energy-absorbing buffers and support elements, minimizing localized stress on hull plating during vessel movement. This significantly reduces the risk of coating damage, steel deformation, or structural fatigue. Their modular design also allows for efficient installation, repositioning, and replacement, lowering lifecycle costs for shipyards and operators.

Submarine Fenders are widely applied in shipyards, dry docks, naval facilities, and offshore engineering projects, offering high safety margins and reliable performance for vessels ranging from commercial ships to specialized heavy-duty marine structures.

Case Study

A major shipyard in Southeast Asia planned the longitudinal launching of an 18,000 DWT multi-purpose cargo vessel. Due to the vessel’s high displacement and uneven pressure distribution along the hull bottom, the shipyard had experienced recurring problems with conventional wooden blocks and steel supports, including excessive localized stress, rapid wear, and frequent replacement during previous projects.

To address these issues, Hongruntong Marine supplied a set of custom-designed Submarine Fenders with high load-bearing capacity and optimized rubber friction characteristics. The fenders were positioned along the primary hull contact zones of the slipway, allowing vessel weight to be evenly distributed throughout the entire launching process.

During operation, the Submarine Fenders demonstrated excellent stability and deformation control, effectively reducing hull contact pressure and minimizing friction resistance. The launching procedure was completed smoothly without structural damage or coating failure. Compared to previous methods, material consumption was reduced by more than 40%, and overall preparation and installation time was significantly shortened.

Following the successful application, the shipyard confirmed that the same Submarine Fender configuration could be reused for future vessels of similar tonnage, delivering improved safety, higher operational efficiency, and long-term cost savings. Positive feedback highlighted the reliability and repeatability of the solution under heavy-duty shipyard conditions.

Specifications

Characteristics