Submarine Fender Pneumatic Rubber Marine Boat Fender

• Customization: Available
• After-sales Service: 24 Hours Instant Online Technical Consultation
• Warranty: 24 Months
• Model NO.: Submarine Fender
• Material: Rubber
• Shape: Cylindrical
• Structure: Floating
• Size: 3.3*6.5m
• Application: Ship Docking
• Diameter: 500 - 4 500mm
• Length: 1 000 - 12 000mm
• Standard: ISO17357:2014
• Intial Internal Pressure: 50kpa, 80kpa
• Technology: Explosion Proof, Overall Winding, Anti-Aging
• Transport Package: Nude Packing in Deflated Condition
• Specification: N/A
• Trademark: Zhonghaike
• Origin: Qingdao, China
• Production Capacity: 2000 Set/Sets Per Quarter
• Package Size: 1000.00cm * 500.00cm * 500.00cm
• Package Gross Weight: 200.000kg

Product Description

Submarine Fender Pneumatic Rubber Marine Boat Fender
 

Submarines and other vessels that make contact below the waterline need a special fendering solution. HydroPneumatic fenders are filled with air and water, then fitted with a counterweight to stand vertically and protect submerged hulls.


Zhonghaike can also provide the special calculations for polytropic conditions(saturated airl,other air:water ratios, hull curvatures and other variables to predict exact performance of HydroPneumatic fenders.

   Safety and Reliability
 

Zhonghaike Pneumatic Rubber Fenders are constructed of several layers of strong tire-cord, and are thus resistant to pressure and cutting. The safety factor adopted in the design of this fender is based on accepted theory and has been proven by extensive experimentation. Operational experience over a long period of time attests to its high safety and reliability, and hydraulic pressure tests have proven the strength to be suitable. Furthermore, large-size fenders are equipped with a safety valve to release the inside air in the event of accidental over-pressure. The figure below shows data obtained from many destructive pressure tests at various percentage compressions. Such data are used to establish a basic minimum endurable pressure (MEP) curve for pneumatic rubber fenders.

     Advantages at Inclined Berthing
 

Ships usually make initial contact with the dock or another ship on STS operations at an oblique angle. In the case of solid rubber fenders or foam fenders, rated reaction force and energy absorption decreases considerably at inclined compressions compared with parallel compression. In order to compensate for the decrease of energy absorption at inclined compression, it is necessary to use larger sizes in the case of solid rubber fenders or foam fenders.
Distribution of load is also comparatively even because of the molecular freedom of air and high flexibility of the multi-layered cord-reinforced rubber membrane. This makes the body of a pneumatic rubber fender more shape conformant compared to solid or foam fenders, and thus able to better distribute the load along the hull of a ship or jetty structure during inclined compression.

     Adaptable to the Tide
 

Zhonghaike Pneumatic Rubber Fenders basically float on the water in an unrestricted
vertical plane corresponding to the tidal range and ship's vertical movement.
This means that energy absorption always takes place at the most suitable position, and
that only one fender is required per dolphin.

     Performance Table
 

IP50	Water:Air	E	R
Φ1700 * 7200	65:35	592	1813
Φ2000 * 6000	65:35	647	1766
Φ2500 * 5500	65:35	928	2037
Φ3300 * 6500	55:45	1913	3196
Φ3300 * 10600	65:35	3120	5170
Φ4500 * 9100	Please ask Zhonghaike
Performances vary with initial pressure, water:air ratio, hull curvature and for other pressurising gasses (ie Nitrogen).Zhonghaike can guide on all special and non-standard design cases. Please ask for details.
[Units: mm, kJ, kN]

Performance Table for IP50
SIZE*D	INTERNAL PRESSURE	BODY WEIGHT	SAFETY VALVE PRESSURE SETTING	TESTING PRESSURE	Please contact us directly about technical questions on submarine fenders
mm(D)*mm(L)	Kpa	Kg	Kpa	Kpa
1700*7200	50	940		200
2000*6000	50	930		200
2500*5500	50	1300	175	250
2500*7700	50	1854	175	250
2500*9100	50	2300	175	250
3300*6500	50	2200	175	250
3300*8600	50	3140	175	250
3300*10600	50	4200	175	250
4500*9000	50	5000	175	250
4500*11000	50	5600	175	250
4500*12000	50	7000	175	250
Performance Table for IP80
SIZE*D	INTERNAL PRESSURE	BODY WEIGHT	SAFETY VALVE PRESSURE SETTING	TESTING PRESSURE	Please contact us directly about technical questions on submarine fenders
mm(D)*mm(L)	Kpa	Kg	Kpa	Kpa
1700*7200	80	1140		250
2000*6000	80	1100		250
2500*5500	80	1460	230	300
2500*7700	80	2030	230	300
2500*9100	80	2480	230	300
3300*6500	80	2520	230	300
3300*8600	80	3350	230	300
3300*10600	80	4700	230	300
4500*9000	80	5500	230	300
4500*11000	80	6100	230	300
4500*12000	80	7600	230	300

      Application Cases



     Company Profile
 

Lies in Qingdao, a beautiful coastal city with red tiling and green trees, blue sea and clear sky, Zhonghaike (Qingdao) Marine Engineering Technology Co., Ltd is a high-tech enterprise integrated with manufacturing, research and innovation, technical services,specialized in manufacturing marine products, such as marine rubber fender, marine airbag, navigation mark and marine buoy. All products get ISO 9001-2008 certificate and IACS quality authentication from CCS, BV, GL, ABS, LG, etc.

With strong technology base, advanced manufacturing technique, complete manufacturing facilities and well-equipped check out equipment, Zhonghaike (Qingdao) Marine Engineering Technology Co., Ltd is devoted to forge itself into a top-ranking international competitive marine products manufacturer providing high quality products and perfect service for all customers, and shoulder the responsibility of ensuring global marine safety via mutually beneficial cooperation with partners from all over the world.
     FAQ
 

Why choose your company?
Zhonghaike insists customers requirement first since founded,supply the most professional solution to meet customer's personalized requirements. And we pay great attention to quality control, high reliability is our design principle, quality control starts from beginning, high quality parts,advanced technology and equipment are used, products are designed,manufactured and tested as ISO9001:2015 requirements. All procedures are strictly controlled and completely meet requirements of ship surveyors such as CCS, BV, RS, ABS, LR, etc.
What are Zhonghaike's hightlights?
We provide all types of fenders, such as Super Cell Fender, Super Cone Fender, Arch Fender, Cylindrical Fender, D Type Fender, etc. We also offer clients with a design of a complete fender system and installation for port facility.
What are the selling points about your products?
A superior fender product can protect both the vessel and the berthing structure berthed against, preventing any damage and save on repair costs.Our rubber fenders are manufactured in accordance with PIANC guidelines and come in a range of compounds to suit various applications. In addition, Zhonghaike can produce according to drawings and provide technical advisory services free of charge.
Is the main material of this product rubber?
Zhonghaike produce rubber fenders not only by using natural rubber, polybutadiene, and other general rubber, but also by using chlorosulfonated polyethylene, polyurethane, and other special rubber in order to meet the special requirements of users and requirements of different use environmental.