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.
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.
Ship Tonnage (DWT) | Assumed Boarding Speed (M/S) | Effective Kinetic Energy (KN.M) | Fender Size D*L (m) |
200000 | 0.15 | 1890 | 3.3 x 6.5 |
150000 | 0.15 | 1417 | 3.3 x 6.5 |
100000 | 0.15 | 945 | 3.0 x 5.0 |
85000 | 0.17 | 1031 | 3.0 x 6.0 |
50000 | 0.18 | 680 | 2.5 x 5.5 |
40000 | 0.20 | 672 | 2.5 x 5.5 |
30000 | 0.22 | 609 | 2.5 x 4.0 |
20000 | 0.25 | 525 | 2.5 x 4.0 |
15000 | 0.26 | 425 | 2.5 x 4.0 |
10000 | 0.28 | 329 | 2.0 x 4.0 |
5000 | 0.33 | 228 | 2.0 x 3.5 |
For Large-tonnage Ship |
"Yokohama Pneumatic Inflatable Rubber Fender " progress in the development of such floating pneumatic rubber fenders is closely related to the progress and development of ship technology, and has to continuously cope with progressively larger oil tankers such as VLCC's, ULCC's, large gas carriers, bulk carriers and floating structures.
Floating pneumatic fenders are used world wide for
ship-to-ship (STS) transfer operations, terminals, and for all kinds of ships.
Transportation We can take the deflation pallet transportation and the entire fender transportation without deflation according to the requirements of customers. We always put the customer's requirements first.
Pneumatic Rubber Fenders are suitable for many applications including:
1. Tankers, Gas Carries and Bulk Cargo Ships;
2. Fast ferries and aluminum hulled vessels;
3. Temporary of permanent installations;
4. Rapid response and emergency fendering;
5. As stand-off fenders to realign ships with shore facilities.
Type I: pneumatic rubber fender with Chain & tyre net protective jacket
Type II: Sling type with rubber plate, rubber tube & ropes protective jacket
Type III: Ribbed type rubber fender
Type IV: Rope net type protective jacket rubber fender
Type V: Standard type without any protective jackets
Type VI: hydro pneumatic rubber fender
Specially Designed and Strengthened Casting Flange
Henger Flange is casting of corrosion-resistant iron with galvanized anti-corrosive coating, which will strongly prolong the fender quality and service life. The strength of Henger casting flange improves 40% higher than traditional type.