As a professional manufacturer with its own advanced factory in China, SunKai is committed to providing high-quality, reliable and cost-effective offshore marine anti-collision solutions for global partners. The SunKai Offshore Low Pressure Pneumatic Fender is a professional anti-collision equipment specially designed for offshore ship berthing and mooring scenarios, which is an indispensable core protective tool for offshore ports, wharves, offshore operation platforms and various offshore vessels.
Different from ordinary coastal low-pressure inflatable fenders, this offshore-specific product adopts a low-pressure inflatable structure (working pressure usually 0.02-0.08MPa), which can effectively absorb and disperse the impact force between offshore ships and docks, between ships, or between ships and offshore platforms, avoiding damage to the hull, port facilities and offshore structures. Its core structure uses high-strength synthetic fiber fabrics (such as nylon and polyester) as the inner tube skeleton, and the outer layer is covered with offshore-grade wear-resistant and anti-aging rubber or PVC materials, forming a flexible buffer through low-pressure air filling.
Through a strict four-step manufacturing process (material pretreatment, inner tube forming, outer wrapping, detection and repair), each fender is ensured to have excellent airtightness, impact resistance and durability, which can adapt to the harsh offshore environment of strong winds, huge waves, long-term seawater immersion and alternating high and low temperatures. With outstanding cost-effectiveness and flexible adaptability, it is suitable for both small offshore yacht berths and large offshore container ship terminals, providing reliable anti-collision protection for various offshore mooring operations.
The integrity of maritime operations hinges on reliable and effective impact protection. Our Offshore Low Pressure Pneumatic Fender is engineered to meet this critical need, providing exceptional energy absorption and vessel safety in challenging offshore environments. These fenders are designed with a specific focus on durability and performance under low internal pressure, making them ideal for a wide range of applications, from ship-to-ship transfers to mooring alongside fixed structures. As a specialized variant, the Marine Low Pressure Pneumatic Fender offers robust defense for vessel hulls and port infrastructure. For general vessel side protection, the versatile Low Pressure Pneumatic Rubber Fender is an industry staple. When the application calls for direct protection of vessels during berthing, our Ship Low Pressure Pneumatic Fender provides optimal performance. Collectively, these products fall under the category of the highly effective Pneumatic Fender Low Pressure Type, known for its high energy absorption-to-weight ratio and reliable performance in diverse sea conditions.
The core advantage of the Offshore Pneumatic Fender lies in its sophisticated design and construction. It typically features a cylindrical body made from multiple layers of high-tensile strength synthetic tire cord, impregnated with synthetic rubber for maximum resilience against abrasion, ozone, and seawater. This carcass is protected by an outer rubber layer designed to withstand harsh environmental exposure. The internal pressure is maintained at a low level, which allows for a larger deformation and, consequently, a longer energy absorption period compared to high-pressure fenders. This results in lower reaction forces for a given energy absorption, significantly reducing the stress on both the vessel and the berthing structure. Key operational features include excellent stability, resistance to compression buckling, and the ability to accommodate large berthing angles. The Offshore Pneumatic Fender is also relatively lightweight for its size, simplifying handling and installation logistics even in remote offshore locations.
Our Offshore Low Pressure Pneumatic Fenders are available in a comprehensive range of sizes to suit various vessel displacements and berthing energy requirements. Below is a detailed breakdown of standard specifications:
| Model | Diameter (D) mm | Length (L) mm | Approx. Weight (kg) | Recommended Energy Absorption (kJ) | Reaction Force (kN) |
|---|---|---|---|---|---|
| OLPF-1000 | 1000 | 2000 | 150 | 110 | 135 |
| OLPF-1500 | 1500 | 3000 | 340 | 370 | 230 |
| OLPF-2000 | 2000 | 4000 | 610 | 880 | 350 |
| OLPF-2500 | 2500 | 5000 | 960 | 1720 | 490 |
| OLPF-3000 | 3000 | 6000 | 1380 | 2970 | 650 |
- High Impact Capability: Equipped with optimized structural layout and high curvature damping capacity, it can effectively absorb and disperse the strong impact force generated by offshore ship berthing, especially suitable for larger tonnage offshore vessels, avoiding damage to the hull and offshore facilities.
- High Anti-Collision Shrinkage and Twisting Capacity: The flexible low-pressure inflatable structure can realize free shrinkage and twisting during collision, effectively buffering the impact, reducing the reaction force, and avoiding rigid damage caused by hard contact.
- New Anti-Explosion Structural Design: Adopts an optimized anti-explosion structure, which can effectively prevent air leakage or explosion caused by excessive pressure during offshore use, ensuring the safety and stability of anti-collision operations.
- Offshore-Level Durability & Corrosion Resistance: The outer layer is made of offshore-grade wear-resistant, anti-aging rubber or PVC materials, which are not easily corroded by seawater, resistant to UV aging, and can maintain stable performance even after long-term immersion in offshore seawater or exposure to sunlight.
- Stable Offshore Environmental Adaptability: This Offshore Low Pressure Pneumatic Fender can adapt to harsh offshore conditions such as strong winds, huge waves, alternating high and low temperatures, and complex offshore water quality, without cracking, aging or performance degradation, and does not require frequent replacement.
- Reliable Buffer Protection: Relying on the compressibility of low-pressure air, it can gradually absorb impact force through its own flexible deformation during collision, with a softer protective effect than rigid fenders, avoiding scratches or dents on the hull and offshore structures.
- Flexible Customization Adaptability: It can be customized in various diameters and lengths according to offshore berth width, vessel tonnage and operation needs, and is suitable for various offshore scenarios such as small yacht berths, large container ship terminals and offshore operation platforms.
- Simple Installation & Maintenance: Lightweight overall design, no need for large lifting equipment during installation, which can be completed manually with simple tools; daily maintenance only needs to regularly check air pressure through the built-in pressure gauge and supplement air when insufficient, with low maintenance cost.
Advanced Production Infrastructure: Operating from our state-of-the-art facility in China, SunKai integrates complete production cycles—from precision material cutting to high-temperature vulcanization. Our scaled capacity and mature manufacturing workflows guarantee a stable and uninterrupted supply for global offshore projects.
Rigorous Quality Assurance: Adhering to stringent pressure vessel manufacturing standards, we implement a multi-stage QC system. Every fender undergoes a mandatory 24-hour airtightness test and meticulous visual inspections to ensure total compliance with international maritime requirements.
Engineering-Driven R&D: Innovation is at our core, with technical specialists making up over 8% of our workforce. Our team includes certified welders and NDT (Non-Destructive Testing) professionals who specialize in tailoring product designs for complex offshore applications.
Optimized Logistics & Factory-Direct Pricing: By eliminating intermediaries, SunKai provides a direct-to-factory advantage. We leverage long-term raw material partnerships and lean manufacturing to deliver high-performance fenders at a significantly lower procurement cost.
Global Certification & Compliance: We offer full customization—from dimensions to pressure ratings—supported by industry-leading third-party certifications including BV, CCS, ABS, and LR, ensuring seamless entry into any international market.
Lifecycle Technical Support: Our commitment extends beyond delivery. We maintain detailed technical files for every unit produced and offer a comprehensive after-sales ecosystem, providing expert guidance, rapid repairs, and genuine accessory supply.
- Q: What is the working pressure range?
A: The usual working pressure range is 0.02-0.08MPa. We recommend maintaining the pressure within this range to ensure optimal buffer performance and avoid safety hazards caused by excessive or insufficient pressure. The 50Kpa and 80Kpa models are available for different offshore anti-collision needs.
- Q: What is the difference between 50Kpa and 80Kpa offshore low-pressure pneumatic fenders?
A: The main difference lies in the initial internal pressure and performance parameters. The 80Kpa model has higher guaranteed energy absorption and reaction force, suitable for larger tonnage offshore ships or scenarios with greater collision impact; the 50Kpa model is more suitable for small and medium-sized offshore ships or scenarios with relatively small collision force, and both can be selected according to actual offshore operation needs.
- Q: Can this fender be used in deep-sea offshore mooring scenarios?
A: Yes, it can. We can customize the Offshore Low Pressure Pneumatic Fender's size, buoyancy and structural design according to the deep-sea water depth and seabed conditions. The offshore-grade corrosion-resistant materials and strict airtightness testing ensure that it can maintain stable performance in deep-sea environments and provide reliable anti-collision protection.
- Q: How long does the airtightness test of the fender take, and what is the standard?
A: Each offshore low-pressure pneumatic fender undergoes a 24-hour airtightness test before leaving the factory. We fill it with low-pressure gas (about 0.05MPa) and let it stand. If the pressure drop does not exceed the standard range within 24 hours, it is considered qualified, ensuring no air leakage during offshore use.
- Q: What should I do if the fender is damaged by offshore obstacles and leaks air?
A: If the damage is slight, you can use the special repair material provided by us to repair the leak point according to the maintenance guidelines; if the damage is serious, please contact our after-sales team in a timely manner, and we will provide professional repair suggestions or quick replacement solutions to minimize the impact on offshore operations.
- Q: Is professional personnel required for the installation and maintenance of the fender?
A: No, professional personnel are not required. The fender is lightweight and has a simple structure. Installation can be completed manually with simple tools without large lifting equipment. Daily maintenance only requires regular air pressure inspection and air supplementation, which is simple and easy to operate.
- Q: What is the service life of the fender under normal offshore use?
A: Under normal offshore use and proper daily maintenance, the service life can reach 8-12 years. The offshore-grade wear-resistant, anti-aging and corrosion-resistant materials, combined with strict manufacturing processes, ensure long-term stable use and reduce the cost of repeated replacement.
- Q: Can the fender be customized according to the specific size of offshore berths and ships?
A: Yes, we have strong customization capabilities. According to your offshore berth width, vessel tonnage, collision force and other specific needs, we can customize fenders of different diameters, lengths and pressure parameters, and can also adjust the material and functional configuration to ensure perfect adaptation to your offshore operation scenario.
