Quality HDPE Pipe Floater & Dredging Pipe Floats factory

DN400 Self floating rubber hose and PE pipe floats have been loaded successfully on April 10th, 2026.  Materials will be delivered to Middle East. 

UHMWPE Steel-Plastic Composite Pipe Processing: Technological Breakthroughs and Industrial Advancement Date: April 16, 2026 Introduction Ultra-high molecular weight polyethylene (UHMWPE) steel-plastic composite pipes represent a high-performance material that integrates the high strength and pressure resistance of steel with the exceptional wear resistance, corrosion resistance, and self-lubrication of UHMWPE. As industries such as mining, dredging, chemical engineering, and municipal water supply demand more durable pipelines, UHMWPE steel-plastic composite pipes have emerged as a critical solution, with their processing technology continuously evolving to meet stringent performance standards. Core Processing Technology The production of UHMWPE steel-plastic composite pipes involves precision engineering and specialized equipment, addressing the challenge of UHMWPE's extremely high melt viscosity. 1. Raw Material Selection & Preparation ◦ Steel Base Pipe: High-quality carbon steel or stainless steel seamless/welded pipes (DN63–DN630mm). ◦ UHMWPE: Ultra-high molecular weight polyethylene (molecular weight ≥ 3 million) for inner lining. ◦ Adhesive Layer: Modified epoxy resin or hot-melt adhesive to ensure strong steel-plastic bonding. 2. Steel Pipe Surface Treatment ◦ Sandblasting & Pickling: Remove rust, oil, and dust to create a rough, clean surface for optimal adhesion. ◦ Phosphating: Enhance the chemical bond between steel and UHMWPE. 3. UHMWPE Lining & Composite Process ◦ Extrusion Coating: Specialized screw extruders melt UHMWPE and coat the inner wall of the steel pipe under high pressure. ◦ Compression Molding: For large-diameter pipes, UHMWPE sheets are heated and pressed into the steel pipe, leveraging its memory effect to form a tight fit. ◦ High-Temperature Curing: The composite pipe is heated to ensure the UHMWPE layer bonds seamlessly with the steel base. 4. Finishing & Quality Control ◦ Cutting & End Processing: Cut to specified lengths; process ends (flanging, threading, welding flanges). ◦ Strict Testing: ◦ Pressure Test: Verify pressure resistance up to 2.0–3.5 MPa. ◦ Electric Spark Test: Detect coating defects. ◦ Bonding Strength Test: Ensure no delamination. Key Technological Innovations • Specialized Extrusion Technology: Custom screw designs solve UHMWPE's high viscosity issue, enabling continuous, efficient production. • High-Strength Adhesion: New coupling agents increase steel-plastic bonding strength to ≥3.0 MPa, preventing separation. • Intelligent Production: Automated lines with PLC control and real-time monitoring ensure consistent quality. Performance Advantages • Ultra Wear Resistance: Wear resistance 5–10 times higher than HDPE, ideal for mining slurry and dredging. • Super Corrosion Resistance: Resists acids, alkalis, salts, and chemical media. • Low Friction: Friction coefficient as low as 0.006, reducing energy consumption by 20%. • High Pressure Resistance: Withstands up to 3.5 MPa, suitable for high-rise and industrial pipelines. • Long Service Life: Lifespan 3–5 times longer than traditional steel pipes. Market Applications & Trends • Main Applications: ◦ Mining: Slurry, tailings, and coal ash transportation. ◦ Dredging: Marine and river sediment pipelines. ◦ Chemical Industry: Corrosive fluid transport. ◦ Municipal: Water supply, drainage, and fire protection. • Market Growth: Global demand for UHMWPE steel-plastic composite pipes grows at 12% annually, driven by infrastructure and industrial upgrading. • Future Trends: ◦ Green Manufacturing: Eco-friendly materials and energy-saving processes. ◦ Smart Monitoring: IoT sensors for real-time pipeline health tracking. ◦ High-End Expansion: Application in high-temperature, high-pressure, and ultra-corrosive environments. Conclusion UHMWPE steel-plastic composite pipe processing technology continues to break through technical bottlenecks, delivering unmatched performance and reliability. As industries pursue higher efficiency and longer service life, these pipes will play an increasingly vital role in global infrastructure and industrial development.

We are pleased to announce that our PE Float (Dredging Float) has successfully completed comprehensive testing by SGS, the world’s leading inspection, verification, testing and certification body. All key indicators meet international standards, confirming outstanding performance and reliability for marine and dredging applications. The SGS testing covered buoyancy performance, material density, tensile strength, impact resistance, UV stability, sealing performance and environmental durability. Results show our PE float delivers stable buoyancy, excellent weather resistance, strong anti-collision capacity and long service life, fully satisfying the rigorous demands of offshore dredging, pipeline floating and water engineering projects. Manufactured from high-quality virgin PE material with integrated molding technology, our floats feature a seamless structure, good sealing, corrosion resistance and easy installation. Strict quality control is implemented throughout production to ensure consistency and safety for long-distance ocean transportation and harsh working environments. With authoritative SGS certification, we provide customers with reliable quality assurance and full compliance support for global customs clearance and project acceptance. This achievement further strengthens our competitiveness in the international market and builds deeper trust with overseas partners. We will continue to uphold high-quality standards, optimize product performance and deliver safe, durable and cost-effective floating solutions to clients worldwide.

Successful Shipment of DN500*50mm UHMWPE Pipes Completed We are pleased to announce that a batch of DN500*50mm Ultra-High Molecular Weight Polyethylene (UHMWPE) Pipes has been smoothly packed and shipped to our valued overseas customer, marking another reliable delivery in our global pipeline supply service. This batch of UHMWPE pipes features a standard diameter of DN500 and wall thickness of 50mm, manufactured with premium ultra-high molecular weight polyethylene raw materials through advanced extrusion technology. With outstanding performance including exceptional wear resistance, excellent corrosion resistance, high impact strength, low friction coefficient and long service life, these pipes are widely applicable to slurry transportation, mine tailing discharge, chemical fluid delivery and other harsh working conditions, fully meeting the high-standard engineering demands of international clients. Prior to shipment, our quality control team carried out comprehensive inspections on product specifications, physical properties and appearance, ensuring every pipe fully complies with international quality standards and customer-specific requirements. The professional packing team adopted sturdy, export-standard packaging to effectively protect the pipes from collision and damage during long-distance ocean transportation, guaranteeing intact arrival of goods at the destination port. Our logistics department formulated a refined transportation plan, efficiently completing the loading, customs declaration and delivery procedures in strict accordance with the delivery schedule. We always adhere to the principle of "customer-centric, quality-first", providing one-stop services from product customization, production supervision to safe shipment, to satisfy customers' demands for on-time delivery and high-quality pipeline products. This smooth delivery not only strengthens the long-term cooperative partnership with overseas customers, but also further demonstrates our professional strength in the R&D and production of UHMWPE pipes. We will continue to focus on product innovation and service optimization, offering more reliable, high-performance pipeline solutions and efficient supporting services to global partners, and jointly promoting the high-quality development of the pipeline engineering industry. We extend sincere gratitude to our customers for their trust and support. Looking forward to more in-depth cooperation with friends from all over the world to create a better future together!

In dredging projects, floating hoses are critical components connecting dredging ships, directly affecting construction, safety, and cost. Incorrect selection can lead to hose rupture, reduced flow, or frequent replacements, which can delay the project and increase project risks. The following key factors to consider before choosing a dredging floating hose.   Understand the characteristics of the conveying medium Different materials can significantly vary in the degree on the hose: Ordinary floating hoses can transport fresh water, seawater, and mixtures of silt, clay, and sand; For working conditions such as coral reefs and weathered rocks, the material particles are often angular and of larger hardness, and you can choose a hose with high abrasion resistance, as a reinforced floating hose with wear-resistant steel rings embedded.   Determine the size of the hose: diameter and length The size of the hose directly affects the efficiency and system match: Inner diameter: The common range is 400mm–1200mm, which needs to match the pump and pipeline system to flow loss or pressure abnormality Length: The common range is 6m~11.8m, which needs to be reasonably selected according to the spatial layout flexibility requirements of the operation site. Too long or too short will affect the flexibility of operation .   Although large diameter hoses can improve flow, flexibility and weight also need to be comprehensively Working pressure and burst pressure . The dredging hose must be able to withstand the maximum working pressure of the system and have sufficient safety margin: working pressure: 1.0-4.0MPa (depending on specific working conditions) . The burst pressure should be at least 3 times the working pressure to ensure Consideration should be given to pressure fluctuations to avoid hose damage from instantaneous high pressure Flexibility and minimum bending radius Floating hoses need to adapt to, tides, and the movement of dredging ships, so flexibility is essential: A too small bending radius can cause the hose to twist or burst , A hose that too soft may collapse under high pressure, affecting the delivery efficiency Buoyancy performance.   The floating layer uses closed-cell PE foam material and should have the following characteristics: High buoyancy, it can remain afloat even under load Low water absorption to avoid sinking due to water absorption Material corrosion resistance and environmental adaptability marine environment poses high demands on the material of the hose: Flanges and reinforcement need to be corrosion-resistant treatment The hose material should be suitable for the temperature and chemical of the project location Certification and test standards   Our dredging hoses comply with international standard ISO28017-2018 and Chinese of Chemical Industry standard HG/T2490-2011 "Specification for Rubber Hose and Hose Assemblies Reinforced with Wire or for Dredging Projects", and are designed and manufactured under the quality system of ISO 9001. Every hose we produce undergoes strict quality control to ensure high quality Our products can also meet customer's customized requirements.

In 2025, we have supplied around 1000m dredging pipeline of DN560, wall thickness 30mm HDPE pipeline together with accessories of PE pipe float, DN500 rubber hoses, silt curtains and so on. These materials are all applied for dredging.   

DN800 HDPE CORRUGRATED PIPE   DN 800 HDPE corrugrated pipeline working at Australia for water drainage.    Features of large diameter Polyethylene double-wall corrugated pipe dn200 to dn800 : Chemical resistance: material is HDPE(high-density polyethylene) Environment-friendly products: its material is the environmental material with non-toxicity, non-corrosion and non-scaling; 100%of it can be recycled Broad applicable temperature scale: no cracking under -40°Ctemperature and maximum temperature of medium transmission is 45°C. High Density Polyethylene (HDPE) Double Wall Corrugated Sewer and Drainage Pipes are for gravity and low pressure sewerage and drainage such as waste water, sanitary sewer and storm sewerage for municipal or industrial use. The pipes provide important benefits and distinct advantages for sewer and drainage applications. Advantages of large diameter Polyethylene double-wall corrugated pipe dn200 to dn800 : 1.Length can be customized according to site requirement means lesser number of joints between sumps 2.Lightweight can manually lifted for unloading, handling and installation 3.Strong and flexible, capable of taking standard traffic loading at low cover 4.Economical and cost effective 5.Superior hydraulics 6.Abrasion and chemical resistance 7.Simple base and embedment 8.Efficient, Durable, economical 9.Easy installation and joints Application of large diameter Polyethylene double-wall corrugated pipe dn200 to dn800 : 1.Sewer and drainage 2.Frontage drains for terrace and other residential units in housing schemes 3.Perimeter drains for commercial, industrial units and individual factories 4.As collector drains in subsoil system in road, highway, open field, stadium, retaining wall or parking space 5.As collector drains in subsoil system, sewerage treatment plant sludge drying bed under drains

Rubber Silt Curtains   Rubber Silt Curtain   The solid float type rubber silt curtain has good flexibility, high buoyancy, and good wave riding performance and stability. It can be placed at designated points and towed by tugboats to sweep oil, control, intercept, and guide oil spills at sea. It can also cooperate with oil harvesters to sweep and collect oil, prevent oil spills from spreading, reduce and eliminate oil pollution, also it can be applied for dredging project to protect the marine environment.   Specifications: Type WGJ600 WGJ800 WGJ900 WGJ1000 WGJ1100 Total Height 600 mm 800 mm 900 mm 1000mm 1100mm Free board 210mm 280mm 320mm 350 mm 390mm Draft 380mm 460mm 490mm 520 mm 610mm Unit length 20 m 20 m 20 m 20 m 20m Tensile resistance of fence tape 280 KN 320 KN 360 KN 400KN 440KN Allowable working tension 70 KN 70 KN 80 KN 100KN 100KN Working Temperature -30---+60℃ -30---+60℃ -30---+60℃ -30---+60℃ -30---+60℃ Storage Temperature -30---+70℃ -30---+70℃ -30---+70℃ -30---+70℃ -30---+70℃ Max Wave Height 1.5m 1.5m 1.5 m 2 m 2.0 m Max Wind Speed ≥10m/s ≥15m/s ≥15m/s ≥20m/s ≥25m/s Maximum flow rate ≥1.0 m/s ≥1.5 m/s ≥2.0m/s ≥2.5m/s ≥2.5 m/s Maximum linear drag speed 8 Kn 8 Kn 8 Kn 8 Kn 10 Kn Maximum arc-shaped drag speed 3 Kn 3 Kn 3 Kn 3 Kn 4 Kn Floating weight ratio 8：1 8：1 8：1 8：1 8：1 Installation and laying time of 200 meters ≤20min ≤20min ≤20min ≤20min ≤20min

DN700 HDPE pipe, pipe floats and rubber hoses   HDPE pipe: O.D710 PN10 total length: 2000m   Matched with PE pipe floats and rubber discharge hoses.    Applied for sand/slurry dredging.

DN250 UHMWPE Pipe, Pipe Floats and Rubber Hoses at the Philippines   DN250 UHMWPE pipe, inner diameter 250mm  matched with rubber flexible hoses and PE pipe floats.    Applied for sand/slurry dredging project at the phipplines.