Pneumatic rubber fenders manufactured based floating pneumatic rubber fender standard iso 17357-high pressure. Yokohama floating pneumatic rubber fenders are filled with air in cylindrical body used for a inflatable bumper for boats, navy ships vessels and marine barges STS ship to ship transfers, STB ship to dock berthing. Since floating yokohama pneumatic rubber fenders is made of rubber, oil & water resistance, are widely applied to gas energy, marine field. Pneumatic rubber fenders can be deflected to 60%, showing a stable performance among the marine fenders systems.
Pneumatic Fenders Classification
According to pneumatic rubber fenders international standard, floating pneumatic rubber fenders system are grouped into two. And from appearance, fenders for ships and marine are classified another two:
- Initial Pressure 50 Kpa, P50 pneumatic fender
- Initial Pressure 80 Kpa, P80 pneumatic fender
- Type I, CHN Type, with chains and tire nets pneumatic marine rubber fender
Type II, Sling Type, without chains and tire nets pneumatic rubber fender
Pneumatic Rubber Fenders Construction
– High tear strength inner rubber layers
– rubber dipped synthetic tire cord reinforced layers
– Durable outer rubber layers, end accessories and fittings
Marine Fenders Feature
Features set forth performance of pneumatic rubber fenders while under actual applications including follows:
When ship berth to a dock or another ship for sts transfer, their first contact is usually at an oblique angle. In this 
case, pneumatic rubber fenders perform different. For solid rubber fenders, their energy absorption, reaction force will decrease considerably at this inclined compression comparing with parallel compression, thus, a larger size of solid marine rubber fender would be selected for instead. But for pneumatic rubber fenders, due its cylindrical body structure, freedom of air and flexibility of rubber layers, floating yokohama pneumatic rubber fenders can distribute the load along the hull of a ship or vessel structure under inclined compression,deflected to 15 degree.
Pneumatic Fenders Types
Due to ships and marine requirements, we have following types of pneumatic rubber ship fenders in our marine pneumatic rubber fendering systems manufactured, supplied for vessels, barges.
– Navy grey color sling type pneumatic rubber fenders
Navy pneumatic rubber fenders are colored in navy grey, normally for navy ships, warships in sling type, without chains and tire nets with inflated initial pressure at either 50 Kpa or 80 Kpa.
– Ribbed type pneumatic rubber fenders
“leader” in China – we are the first “person to try tomatos” to develop stripped ribbed pneumatic rubber fender in China successfully. Ribbed rubber pneumatic fenders have a ligher weight, with chains and tire nets of traditional pneumatic rubber fenders replaced by prominent ribbed stripes.
– Yokohama pneumatic rubber fenders
Yokohama type marine pneumatic rubber fenders or yokohama pneumatic fenders are sometimes meaned pneumatic rubber fenders directly referring to international i 17357. Pneumatic fenders are produced adopting Japan Yokohama technology, with distinctive and efficient assembling line equipped with xupscale testing machinery.
– Submarine pneumatic rubber fenders
Halfdive vertical submarine pneumatic rubber fenders are filled with water installed between berths and submarines for docking purpose.
Performance Table
In accordance with requirements of ISO 17357-1 high pressure yokohama type floating pneumatic rubber fenders, marine pneumatic rubber fenders performed at pressure of 50 Kpa and 80 Kpa only, which are listed in below sheet demonstrates sizes of pneumatic rubber fenders from diameter 0.5 m ~4.5 m , 1.0 m ~12.0 m in length, we are now available to supply below sizes of pneumatic rubber fenders.
Application & Installation
Pneumatic rubber fenders generally have two main applications for ships: ship to ship transfer and ship to quay operation.
Ship to ship: normally, for lighter weight ships transferring work, smaller pneumatic rubber fenders are enough. But for heavy duty barges or vessels, bigger-sized marine pneumatic rubber fenders with more quantity are necessary. The pneumatic rubber fenders are hung alongside of ships hull with mooring chains or fibre ropes.
Ship to quay: pneumatic rubber fenders are installed side of ports to absorb berthing energy when ships docks. Fenders are hung also by guy chains or ropes, same as ship to ship operation.
Pressure Requirements
Referred to pressure of one pneumatic rubber fender for marine, there are initial pressure without deflection of one pneumatic rubber fender and pneumatic fenders at 60% deflection, hull pressure at related deflection, and safety valve pressurings as well as tested pressure of a pneumatic rubber fenders to be discussed below.
Pressure of P80
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