High-durability marine components and modular structures engineered to exceed international standard testing parameters.
A deep dive into hydrodynamic challenges, material selections, and OEM manufacturing protocols.
Unlike standard monohull vessels, catamarans distribute their weight across two parallel hulls. This twin-hull geometry presents unique hydrodynamic challenges when docking. A standard pontoon setup often lacks the torsional flexibility and precise width configuration necessary to securely interface with catamarans of varying beams. Our OEM production lines address these factors by manufacturing modular floating blocks that feature specialized load-bearing distribution matrices. This design significantly minimizes hull friction while enhancing stabilizing margins during high-energy wake impacts.
At Shenghuang Industrial & Trade Blow Molding Factory, the structural integrity of our floating docks is rooted in our material formulations. We utilize HMWHDPE enhanced with proprietary anti-UV additives, carbon-black stabilizers, and anti-aging agents. This chemical construction guarantees protection against photo-oxidation caused by continuous solar exposure. The resulting modular blocks exhibit exceptional tensile strength, impact resilience in freezing climates (down to -60°C), and chemical inertness in highly saline marine settings.
A premier OEM Catamaran Floating Dock must deliver stable buoyancy curves. Our square modular cubes offer a buoyancy rating of 350 kg/m², maintaining structural stability even under uneven deck loads. The anti-slip upper surface pattern prevents hydroplaning, and the connection lugs are engineered to withstand up to 2,000 kgf of tensile pull. This high load-bearing performance prevents joint separation during tidal surges or storm conditions.
kgs/m² Buoyancy Capacity
Certified Quality Protocols
Established Innovation Hub
Recyclable Sustainable Materials
Why manufacturing in Huangyan, Taizhou, Zhejiang represents a global competitive edge.
Shenghuang Industrial & Trade Blow Molding Factory operates within Huangyan, Taizhou, Zhejiang, the recognized tooling capital of China. This placement provides immediate access to high-grade molding steel, specialized CNC machinery, and high-performance polymer suppliers. Our factory controls the product cycle from initial product development to final output, allowing us to implement design changes, build prototype molds, and scale production rapidly compared to overseas facilities.
Our facility features automated, high-volume blow molding machinery capable of continuous extrusion. This automation yields uniform wall thickness across all floating pontoon chambers, preventing thin spots that could compromise the dock's structure. Large-scale production runs enable us to offer competitive pricing to OEM/ODM partners, helping them secure a high return on investment.
Founded in 2019, leading innovation across packaging, automotive components, household appliances, and maritime products.
The factory is equipped with automated blow molding production lines, enabling Shenghuang to efficiently produce a wide range of plastic products, including containers, bottles, pontoons, automotive parts, and custom-designed solutions. These production systems support the demand for high-precision, durable, and cost-effective plastic products. The company adheres strictly to the ISO 9001 quality management system, ensuring that every stage of production—from raw material procurement to final testing—meets rigorous standards.



Partnering with a globally integrated manufacturing leader ensures localized compliance and customized application engineering.
The company recruits skilled technical, sales, and quality assurance personnel dedicated to meeting client requirements and providing comprehensive support.
A responsive R&D department allows us to modify specifications and create custom molds to meet specific project guidelines.
We deploy modern blow molding technologies and clean-loop recycling methods to reduce emissions and minimize environmental footprint.
Our high-demand structural modules deployed across global B2B projects.
Optimized for Jet-Ski and Catamaran Hull Entry
Double Width Structural Configurations
High-Density Modular Component Block
Versatile layouts configured for marinas, aquaculture operations, commercial events, and offshore worksites.
Providing high-stability mooring systems for dual-hull catamarans and commercial pleasure craft.
Engineered to support operations and structural equipment at fish farms and marine harvesting facilities.
Delivering high-durability floating systems to clients and distributors globally.
Technical insight and answers from our engineering team regarding installation, logistics, and maintenance.
Explore our full line of blow-molded products, marine components, and heavy-duty sporting gear.