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Pneumatic rubber fender introduction
The fender is mainly to withstand the impact force of the ship when the ship is docking, leaving the dock and other forms (such as when the ship is tied to tow), and transmits it to the hull structure of a larger area. Wooden fenders have buffering effect. Although steel fenders have poor buffering effect, they have better strength and can be included in the section of the hull girder (the welding strength must be guaranteed). Especially for large-open deck barges, they can make up for the deck The lack of effective cross-sectional area is conducive to longitudinal strength. Steel materials cannot be used for the fenders of oil barges and small oil tankers.
Compared with general elastic rubber fenders (such as waste tires, solid rubber fenders, etc.), it has the advantages of large impact energy absorption, low pressure per unit area acting on ships, excellent impact fatigue resistance, and easy installation.
Since it was put into use in the market, with its excellent elasticity and wear resistance, the inflatable rubber fender has been used as a buffer medium for ship berthing and ship berthing, and is widely used in ship-to-ship operations and ship mooring operations.
Large seagoing vessels usually do not have fenders. River boats, work boats, permanent double-track fenders, one of which is located on the upper deck, and the other is located slightly higher than the designed waterline.
Floating Inflatable Fenders are used world wide for ship-to-ship (STS) transfer operations, terminals, and for all kinds of ships. Since its creation until today,
more than millions of fenders have been supplied worldwide both for ship-to-ship and ship-to-dock (STD) operations serving our valuable customers.
These fenders play a critical role in the safe operation of ship berthing and mooring.
Pneumatic rubber fender features
1 Safety and Reliability
Yokohama 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.
2 No Deterioration or Variation in Performance
Yokohama Pneumatic Rubber Fenders utilize the compressive elasticity of air, therefore performance deterioration due to fatigue is absent. In the case of solid rubber fenders or foam-filled fenders, based on data were taken from comparison tests of Yokohama Fenders, there are variations in performance. Such performance variations are associated to changes of rubber or foam hardness occurring as a result of cyclic compression and temperature change. The good performance of the Yokohama Pneumatic Rubber Fenders remains unchanged even at temperatures under -50 degrees Centigrade (-58 degrees Fahrenheit).
3 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 Yokohama Pneumatic Rubber Fenders, energy absorption does not decrease at inclined compression up to 15 degrees.
4 Most Cost Competitive System
The utilization of the compressive elasticity of air, unlike other fenders which need protector panels, provides completely uniform surface pressure on contact. The surface pressure is equal to the internal air pressure
5 Stronger against Shearing Force
After contacting a dock, a ship is usually shifted to the correct mooring position. The shifting exerts shearing and compression forces on the fenders. This combined force is very severe in the case of solid rubber fenders because they are not reinforced against such force. In contrast, Yokohama Pneumatic Rubber Fenders are adequately reinforced using strong tire-cord to cope against such forces as well as internal pressure.
Contact information:
Angus Zhang
Tel: +86-15794525751
E-mail:angus@hengergroup.com;